java.lang.Object
- org.apache.openjpa.persistence.query.AbstractDomainObject

All Implemented Interfaces:

java.io.Serializable, DomainObject, Expression, OrderByItem, PathExpression, PredicateOperand, QueryDefinition, SelectItem, Subquery, Visitable

Direct Known Subclasses:

FetchPath, JoinPath, OperatorPath, RootPath
```
public abstract class AbstractDomainObject
extends java.lang.Object
implements DomainObject
```
Domain Object is a path expression over which query is evaluated. Domain object acts as a proxy for a QueryDefinition via delegation.

Author:

Pinaki Poddar

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected PathOperator`	`_operator`
`protected QueryDefinitionImpl`	`_owner`
`protected org.apache.openjpa.persistence.query.AbstractPath`	`_parent`
`protected java.lang.Object`	`_part2`
`static java.lang.String`	`CLOSE_BRACE`
`static java.lang.String`	`COMMA`
`static java.lang.String`	`EMPTY`
`static java.lang.String`	`OPEN_BRACE`
`static java.lang.String`	`SPACE`

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`AbstractDomainObject(QueryDefinitionImpl owner, org.apache.openjpa.persistence.query.AbstractPath parent, PathOperator op, java.lang.Object part2)`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Expression`	`abs()`	Absolute value.
`DomainObject`	`addRoot(java.lang.Class cls)`	Adding a root adds a root domain to the owning query.
`DomainObject`	`addSubqueryRoot(PathExpression path)`	Adding a query root adds a subquery to the owning query.
`Subquery`	`all()`	Derives this path as ALL(subquery) to its owning query.
`Subquery`	`any()`	Adds this path as ANY(subquery) to its owning query.
`OrderByItem`	`asc()`	Return an OrderByItem referencing the SelectItem and specifying ascending ordering.
`java.lang.String`	`asExpression(org.apache.openjpa.persistence.query.AliasContext ctx)`	Get a JPQL fragment as used in WHERE clause.
`java.lang.String`	`asJoinable(org.apache.openjpa.persistence.query.AliasContext ctx)`	Gets the string representation in FROM clause.
`java.lang.String`	`asProjection(org.apache.openjpa.persistence.query.AliasContext ctx)`	Gets the string representation in SELECT projection.
`Aggregate`	`avg()`	Specify that the avg operation is to be applied.
`Predicate`	`between(java.lang.Number arg1, java.lang.Number arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(java.lang.Number arg1, PredicateOperand arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(java.lang.String arg1, java.lang.String arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(java.lang.String arg1, PredicateOperand arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(java.util.Calendar arg1, java.util.Calendar arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(java.util.Calendar arg1, PredicateOperand arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(java.util.Date arg1, java.util.Date arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(java.util.Date arg1, PredicateOperand arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(PredicateOperand arg1, java.lang.Number arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(PredicateOperand arg1, java.lang.String arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(PredicateOperand arg1, java.util.Calendar arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(PredicateOperand arg1, java.util.Date arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Predicate`	`between(PredicateOperand arg1, PredicateOperand arg2)`	Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
`Expression`	`coalesce(java.lang.String... exp)`	coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
`Expression`	`coalesce(java.util.Calendar... exp)`	coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
`Expression`	`coalesce(java.util.Date... exp)`	coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
`Expression`	`coalesce(Expression... exp)`	coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
`Expression`	`concat(java.lang.String... str)`	Concatenate a string with other string(s).
`Expression`	`concat(Expression... exprs)`	Concatenate a string with other string(s).
`Aggregate`	`count()`	Specify that the count operation is to be applied.
`Expression`	`currentDate()`	Create an Expression corresponding to the current date on the database server at the time of query execution.
`Expression`	`currentTime()`	Create an Expression corresponding to the current time on the database server at the time of query execution.
`Expression`	`currentTimestamp()`	Create an Expression corresponding to the current timestamp on the database server at the time of query execution.
`OrderByItem`	`desc()`	Return an OrderByItem referencing the SelectItem and specifying descending ordering.
`Expression`	`dividedBy(java.lang.Number num)`	Division.
`Expression`	`dividedBy(Expression expr)`	Division.
`SelectItem`	`entry()`	Derives by ENTRY() operation on this path.
`Predicate`	`equal(boolean arg)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`equal(java.lang.Class cls)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`equal(java.lang.Enum<?> e)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`equal(java.lang.Number arg)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`equal(java.lang.String arg)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`equal(java.util.Calendar arg)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`equal(java.util.Date arg)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`equal(PredicateOperand arg)`	Create a predicate for testing equality with the specified argument.
`Predicate`	`exists()`	Adds this path as EXISTS(subquery) to its owning query.
`CaseExpression`	`generalCase()`	Create an empty general case expression.
`PathExpression`	`get(java.lang.String attr)`	Derives a path from this path by navigating through the given field.
`java.lang.String`	`getAliasHint(org.apache.openjpa.persistence.query.AliasContext ctx)`	Gets the hint to be used while creating alias.
`java.lang.Object`	`getLastSegment()`	Gets the last segment of this path.
`PathOperator`	`getOperator()`	Gets operator that derived this receiver from its parent.
`org.apache.openjpa.persistence.query.AbstractPath`	`getParent()`	Gets the parent from which this receiver has been derived.
`Predicate`	`greaterEqual(java.lang.Number arg)`	Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
`Predicate`	`greaterEqual(java.lang.String arg)`	Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
`Predicate`	`greaterEqual(java.util.Calendar arg)`	Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
`Predicate`	`greaterEqual(java.util.Date arg)`	Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
`Predicate`	`greaterEqual(PredicateOperand arg)`	Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
`Predicate`	`greaterThan(java.lang.Number arg)`	Create a predicate for testing whether the PredicateOperand is greater than the argument.
`Predicate`	`greaterThan(java.lang.String arg)`	Create a predicate for testing whether the PredicateOperand is greater than the argument.
`Predicate`	`greaterThan(java.util.Calendar arg)`	Create a predicate for testing whether the PredicateOperand is greater than the argument.
`Predicate`	`greaterThan(java.util.Date arg)`	Create a predicate for testing whether the PredicateOperand is greater than the argument.
`Predicate`	`greaterThan(PredicateOperand arg)`	Create a predicate for testing whether the PredicateOperand is greater than the argument.
`QueryDefinition`	`groupBy(java.util.List<PathExpression> pathExprList)`	Specify the items that are used to form groups over the query results.
`QueryDefinition`	`groupBy(PathExpression... pathExprs)`	Specify the items that are used to form groups over the query results.
`QueryDefinition`	`having(Predicate predicate)`	Specify the restrictions over the groups of a query.
`Predicate`	`in(java.lang.Class... classes)`	Create a predicate for testing whether the expression value is a member of the argument list.
`Predicate`	`in(java.lang.Enum<?>... enums)`	Create a predicate for testing whether the expression value is a member of the argument list.
`Predicate`	`in(java.lang.Number... nums)`	Create a predicate for testing whether the expression value is a member of the argument list.
`Predicate`	`in(java.lang.String... strings)`	Create a predicate for testing whether the expression value is a member of the argument list.
`Predicate`	`in(Expression... params)`	Create a predicate for testing whether the expression value is a member of the argument list.
`Predicate`	`in(Subquery subquery)`	Create a predicate for testing whether the expression value is a member of a subquery result.
`Expression`	`index()`	Derives by INDEX() operation on this path.
`Predicate`	`isEmpty()`	Add a restriction that the path expression must correspond to an association or element collection that is empty (has no elements).
`Predicate`	`isNull()`	Create a predicate for testing whether the value of the expression is null.
`DomainObject`	`join(java.lang.String attr)`	Derives a path from this path by joining the given field.
`FetchJoinObject`	`joinFetch(java.lang.String attr)`	Derives a path from this path by fetch joining the given field.
`PathExpression`	`key()`	Derives by KEY() operation on this path.
`DomainObject`	`leftJoin(java.lang.String attr)`	Derives a path from this path by outer joining the given field.
`FetchJoinObject`	`leftJoinFetch(java.lang.String attr)`	Derives a path from this path by fetch joining the given field.
`Expression`	`length()`	String length This method must be invoked on an expression corresponding to a string.
`Predicate`	`lessEqual(java.lang.Number arg)`	Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
`Predicate`	`lessEqual(java.lang.String arg)`	Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
`Predicate`	`lessEqual(java.util.Calendar arg)`	Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
`Predicate`	`lessEqual(java.util.Date arg)`	Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
`Predicate`	`lessEqual(PredicateOperand arg)`	Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
`Predicate`	`lessThan(java.lang.Number arg)`	Create a predicate for testing whether the PredicateOperand is less than the argument.
`Predicate`	`lessThan(java.lang.String arg)`	Create a predicate for testing whether the PredicateOperand is less than the argument.
`Predicate`	`lessThan(java.util.Calendar arg)`	Create a predicate for testing whether the PredicateOperand is less than the argument.
`Predicate`	`lessThan(java.util.Date arg)`	Create a predicate for testing whether the PredicateOperand is less than the argument.
`Predicate`	`lessThan(PredicateOperand arg)`	Create a predicate for testing whether the PredicateOperand is less than the argument.
`Predicate`	`like(java.lang.String pattern)`	Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
`Predicate`	`like(java.lang.String pattern, char escChar)`	Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
`Predicate`	`like(java.lang.String pattern, PredicateOperand escapeChar)`	Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
`Predicate`	`like(PredicateOperand pattern)`	Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
`Predicate`	`like(PredicateOperand pattern, char escapeChar)`	Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
`Predicate`	`like(PredicateOperand pattern, PredicateOperand escChar)`	Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
`Expression`	`literal(boolean b)`	Create an Expression corresponding to a boolean value.
`Expression`	`literal(char c)`	Create an Expression corresponding to a character value.
`Expression`	`literal(java.lang.Class cls)`	Create an Expression corresponding to an entity class.
`Expression`	`literal(java.lang.Enum<?> e)`	Create an Expression corresponding to an enum.
`Expression`	`literal(java.lang.Number n)`	Create an Expression corresponding to a numeric value.
`Expression`	`literal(java.lang.String s)`	Create an Expression corresponding to a String value.
`Expression`	`literal(java.util.Calendar c)`	Create an Expression corresponding to a Calendar value.
`Expression`	`literal(java.util.Date d)`	Create an Expression corresponding to a Date value.
`Expression`	`locate(java.lang.String str)`	Locate a string contained within the string corresponding to the expression on which the method was invoked.
`Expression`	`locate(java.lang.String str, int position)`	Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position.
`Expression`	`locate(java.lang.String str, Expression position)`	Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position.
`Expression`	`locate(Expression expr)`	Locate a string contained within the string corresponding to the expression on which the method was invoked.
`Expression`	`locate(Expression str, int position)`	Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position.
`Expression`	`locate(Expression str, Expression position)`	Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position.
`Expression`	`lower()`	Convert string to lowercase.
`Aggregate`	`max()`	Specify that the max operation is to be applied.
`Predicate`	`member(PathExpression arg)`	Create a predicate for testing whether the expression is a member of the association or element collection denoted by the path expression.
`Aggregate`	`min()`	Specify that the min operation is to be applied.
`Expression`	`minus()`	Unary minus.
`Expression`	`minus(java.lang.Number num)`	Subtraction.
`Expression`	`minus(Expression expr)`	Subtraction.
`Expression`	`mod(int num)`	Modulo operation.
`Expression`	`mod(Expression expr)`	Modulo operation.
`SelectItem`	`newInstance(java.lang.Class cls, SelectItem... args)`	Specify that a constructor for the given class is to be applied to the corresponding query results after the query is executed.
`Predicate`	`notEqual(boolean arg)`	Create a predicate for testing inequality with the specified argument.
`Predicate`	`notEqual(java.lang.Class cls)`	Create a predicate for testing inequality with the specified argument.
`Predicate`	`notEqual(java.lang.Enum<?> e)`	Create a predicate for testing inequality with the specified argument.
`Predicate`	`notEqual(java.lang.Number arg)`	Create a predicate for testing inequality with the specified argument.
`Predicate`	`notEqual(java.lang.String arg)`	Create a predicate for testing inequality with the specified argument.
`Predicate`	`notEqual(java.util.Calendar arg)`	Create a predicate for testing inequality with the specified argument.
`Predicate`	`notEqual(java.util.Date arg)`	Create a predicate for testing inequality with the specified argument.
`Predicate`	`notEqual(PredicateOperand arg)`	Create a predicate for testing inequality with the specified argument.
`Expression`	`nullif(java.lang.Class arg1, java.lang.Class arg2)`	nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
`Expression`	`nullif(java.lang.Enum<?> arg1, java.lang.Enum<?> arg2)`	nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
`Expression`	`nullif(java.lang.Number arg1, java.lang.Number arg2)`	nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
`Expression`	`nullif(java.lang.String arg1, java.lang.String arg2)`	nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
`Expression`	`nullif(java.util.Calendar arg1, java.util.Calendar arg2)`	nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
`Expression`	`nullif(java.util.Date arg1, java.util.Date arg2)`	nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
`Expression`	`nullif(Expression exp1, Expression exp2)`	nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
`Expression`	`nullLiteral()`	Create an Expression corresponding to a null value.
`QueryDefinition`	`orderBy(java.util.List<OrderByItem> orderByItemList)`	Specify the items of the select list that are used in ordering the query results.
`QueryDefinition`	`orderBy(OrderByItem... orderByItems)`	Specify the items of the select list that are used in ordering the query results.
`Expression`	`param(java.lang.String name)`	Specify use of a parameter of the given name.
`Expression`	`plus(java.lang.Number num)`	Addition.
`Expression`	`plus(Expression expr)`	Addition.
`Predicate`	`predicate(boolean b)`	Create a predicate value from the given boolean.
`QueryDefinition`	`select(java.util.List<SelectItem> selectItemList)`	Specify the objects / values to be returned.
`QueryDefinition`	`select(SelectItem... selectItems)`	Specify the objects / values to be returned.
`QueryDefinition`	`selectDistinct(java.util.List<SelectItem> selectItemList)`	Specify the objects / values to be returned.
`QueryDefinition`	`selectDistinct(SelectItem... selectItems)`	Specify the objects / values to be returned.
`CaseExpression`	`simpleCase(java.lang.Class caseOperand)`	Create a simple case expression with the given case operand.
`CaseExpression`	`simpleCase(java.lang.Enum<?> caseOperand)`	Create a simple case expression with the given case operand.
`CaseExpression`	`simpleCase(java.lang.Number caseOperand)`	Create a simple case expression with the given case operand.
`CaseExpression`	`simpleCase(java.lang.String caseOperand)`	Create a simple case expression with the given case operand.
`CaseExpression`	`simpleCase(java.util.Calendar caseOperand)`	Create a simple case expression with the given case operand.
`CaseExpression`	`simpleCase(java.util.Date caseOperand)`	Create a simple case expression with the given case operand.
`CaseExpression`	`simpleCase(Expression caseOperand)`	Create a simple case expression with the given case operand.
`Expression`	`size()`	Return an expression that corresponds to the number of elements association or element collection corresponding to the path expression.
`Subquery`	`some()`	Adds this path as SOME(subquery) to its owning query.
`Expression`	`sqrt()`	Square root.
`Expression`	`substring(int start)`	Extract a substring starting at specified position through to the end of the string.
`Expression`	`substring(int start, int len)`	Extract a substring.
`Expression`	`substring(int start, Expression len)`	Extract a substring.
`Expression`	`substring(Expression start)`	Extract a substring starting at specified position through to the end of the string.
`Expression`	`substring(Expression start, int len)`	Extract a substring.
`Expression`	`substring(Expression start, Expression len)`	Extract a substring.
`Aggregate`	`sum()`	Specify that the sum operation is to be applied.
`Expression`	`times(java.lang.Number num)`	Multiplication.
`Expression`	`times(Expression expr)`	Multiplication.
`Expression`	`trim()`	Trim leading and trailing blanks.
`Expression`	`trim(char c)`	Trim leading and trailing occurrences of character from the string.
`Expression`	`trim(char c, TrimSpec spec)`	Trim occurrences of the character from leading or trailing (or both) positions of the string, as specified by trim spec.
`Expression`	`trim(Expression expr)`	Trim leading and trailing occurrences of character specified by the expression argument from the string.
`Expression`	`trim(Expression expr, TrimSpec spec)`	Trim occurrences of the character specified by the expression argument from leading or trailing (or both) positions of the string, as specified by trim spec.
`Expression`	`trim(TrimSpec spec)`	Trim leading, trailing blanks (or both) as specified by trim spec.
`Expression`	`type()`	Return an expression that corresponds to the type of the entity.
`Expression`	`upper()`	Convert string to uppercase.
`PathExpression`	`value()`	Derives a path by VALUE() operation on this path.
`QueryDefinition`	`where(Predicate predicate)`	Modifies the query definition to restrict the result of the query according to the specified predicate.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.apache.openjpa.persistence.query.Expression
abs, concat, concat, dividedBy, dividedBy, in, in, in, in, in, in, isNull, length, locate, locate, locate, locate, locate, locate, lower, member, minus, minus, minus, mod, mod, plus, plus, sqrt, substring, substring, substring, substring, substring, substring, times, times, trim, trim, trim, trim, trim, trim, upper

Methods inherited from interface org.apache.openjpa.persistence.query.PathExpression
avg, count, isEmpty, max, min, size, sum, type

Methods inherited from interface org.apache.openjpa.persistence.query.PredicateOperand
between, between, between, between, between, between, between, between, between, between, between, between, between, equal, equal, equal, equal, equal, equal, equal, equal, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual

Methods inherited from interface org.apache.openjpa.persistence.query.SelectItem
asc, desc

Methods inherited from interface org.apache.openjpa.persistence.query.Visitable
asExpression, asJoinable, asProjection

- Field Detail
  - _parent
```
protected final org.apache.openjpa.persistence.query.AbstractPath _parent
```
  - _part2
```
protected final java.lang.Object _part2
```
  - _operator
```
protected final PathOperator _operator
```
  - _owner
```
protected final QueryDefinitionImpl _owner
```
  - SPACE
```
public static final java.lang.String SPACE
```
    See Also:
    
    Constant Field Values
  - OPEN_BRACE
```
public static final java.lang.String OPEN_BRACE
```
    See Also:
    
    Constant Field Values
  - CLOSE_BRACE
```
public static final java.lang.String CLOSE_BRACE
```
    See Also:
    
    Constant Field Values
  - COMMA
```
public static final java.lang.String COMMA
```
    See Also:
    
    Constant Field Values
  - EMPTY
```
public static final java.lang.String EMPTY
```
    See Also:
    
    Constant Field Values
- Constructor Detail
  - AbstractDomainObject
```
protected AbstractDomainObject(QueryDefinitionImpl owner,
                               org.apache.openjpa.persistence.query.AbstractPath parent,
                               PathOperator op,
                               java.lang.Object part2)
```
- Method Detail
  - addRoot
```
public DomainObject addRoot(java.lang.Class cls)
```
    Adding a root adds a root domain to the owning query.
    
    Specified by:
    
    addRoot in interface QueryDefinition
    
    Parameters:
    
    cls - - an entity class
    
    Returns:
    
    DomainObject corresponding to the specified entity class.
  - addSubqueryRoot
```
public DomainObject addSubqueryRoot(PathExpression path)
```
    Adding a query root adds a subquery to the owning query.
    
    Specified by:
    
    addSubqueryRoot in interface QueryDefinition
    
    Parameters:
    
    path - - path expression corresponding to the domain object used to derive the subquery root.
    
    Returns:
    
    the subquery DomainObject
  - get
```
public PathExpression get(java.lang.String attr)
```
    Derives a path from this path by navigating through the given field.
    
    Specified by:
    
    get in interface PathExpression
    
    Parameters:
    
    attr - - name of the referenced attribute
    
    Returns:
    
    path expression
  - join
```
public DomainObject join(java.lang.String attr)
```
    Derives a path from this path by joining the given field. Also the joined path becomes a domain of the owning query.
    
    Specified by:
    
    join in interface DomainObject
    
    Parameters:
    
    attr - - name of the attribute that references the target of the join
    
    Returns:
    
    the new DomainObject that is added for the target of the join
  - leftJoin
```
public DomainObject leftJoin(java.lang.String attr)
```
    Derives a path from this path by outer joining the given field. Also the joined path becomes a domain of the owning query.
    
    Specified by:
    
    leftJoin in interface DomainObject
    
    Parameters:
    
    attr - - name of the attribute that references the target of the join
    
    Returns:
    
    the new DomainObject that is added for the target of the join
  - joinFetch
```
public FetchJoinObject joinFetch(java.lang.String attr)
```
    Derives a path from this path by fetch joining the given field.
    
    Specified by:
    
    joinFetch in interface DomainObject
    
    Parameters:
    
    attr - - name of the attribute that references the target of the join
    
    Returns:
    
    the FetchJoinObject that is added for the target of the join
  - leftJoinFetch
```
public FetchJoinObject leftJoinFetch(java.lang.String attr)
```
    Derives a path from this path by fetch joining the given field.
    
    Specified by:
    
    leftJoinFetch in interface DomainObject
    
    Parameters:
    
    attr - - name of the attribute that references the target of the join
    
    Returns:
    
    the FetchJoinObject that is added for the target of the join
  - key
```
public PathExpression key()
```
    Derives by KEY() operation on this path.
    
    Specified by:
    
    key in interface DomainObject
    
    Returns:
    
    PathExpression corresponding to the map key
  - entry
```
public SelectItem entry()
```
    Derives by ENTRY() operation on this path.
    
    Specified by:
    
    entry in interface DomainObject
    
    Returns:
    
    SelectItem corresponding to the map entry
  - index
```
public Expression index()
```
    Derives by INDEX() operation on this path.
    
    Specified by:
    
    index in interface DomainObject
    
    Returns:
    
    Expression denoting the index
  - value
```
public PathExpression value()
```
    Derives a path by VALUE() operation on this path.
    
    Specified by:
    
    value in interface DomainObject
    
    Returns:
    
    PathExpression corresponding to the map value
  - all
```
public Subquery all()
```
    Derives this path as ALL(subquery) to its owning query.
    
    Specified by:
    
    all in interface QueryDefinition
    
    Returns:
    
    the resulting Subquery
  - any
```
public Subquery any()
```
    Adds this path as ANY(subquery) to its owning query.
    
    Specified by:
    
    any in interface QueryDefinition
    
    Returns:
    
    the resulting Subquery
  - some
```
public Subquery some()
```
    Adds this path as SOME(subquery) to its owning query.
    
    Specified by:
    
    some in interface QueryDefinition
    
    Returns:
    
    the resulting Subquery
  - exists
```
public Predicate exists()
```
    Adds this path as EXISTS(subquery) to its owning query.
    
    Specified by:
    
    exists in interface QueryDefinition
    
    Returns:
    
    the resulting predicate
  - coalesce
```
public Expression coalesce(Expression... exp)
```
    Description copied from interface: QueryDefinition
    
    coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
    
    Specified by:
    
    coalesce in interface QueryDefinition
    
    Parameters:
    
    exp - - expressions to be used for testing against null
    
    Returns:
    
    Expression corresponding to the given coalesce expression
  - coalesce
```
public Expression coalesce(java.lang.String... exp)
```
    Description copied from interface: QueryDefinition
    
    coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
    
    Specified by:
    
    coalesce in interface QueryDefinition
    
    Parameters:
    
    exp - - expressions to be used for testing against null
    
    Returns:
    
    Expression corresponding to the given coalesce expression
  - coalesce
```
public Expression coalesce(java.util.Date... exp)
```
    Description copied from interface: QueryDefinition
    
    coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
    
    Specified by:
    
    coalesce in interface QueryDefinition
    
    Parameters:
    
    exp - - expressions to be used for testing against null
    
    Returns:
    
    Expression corresponding to the given coalesce expression
  - coalesce
```
public Expression coalesce(java.util.Calendar... exp)
```
    Description copied from interface: QueryDefinition
    
    coalesce This is equivalent to a case expression that returns null if all its arguments evaluate to null, and the value of its first non-null argument otherwise.
    
    Specified by:
    
    coalesce in interface QueryDefinition
    
    Parameters:
    
    exp - - expressions to be used for testing against null
    
    Returns:
    
    Expression corresponding to the given coalesce expression
  - currentDate
```
public Expression currentDate()
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to the current date on the database server at the time of query execution.
    
    Specified by:
    
    currentDate in interface QueryDefinition
    
    Returns:
    
    the corresponding Expression
  - currentTime
```
public Expression currentTime()
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to the current time on the database server at the time of query execution.
    
    Specified by:
    
    currentTime in interface QueryDefinition
    
    Returns:
    
    the corresponding Expression
  - currentTimestamp
```
public Expression currentTimestamp()
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to the current timestamp on the database server at the time of query execution.
    
    Specified by:
    
    currentTimestamp in interface QueryDefinition
    
    Returns:
    
    the corresponding Expression
  - generalCase
```
public CaseExpression generalCase()
```
    Description copied from interface: QueryDefinition
    
    Create an empty general case expression. A general case expression is of the form:
    generalCase() .when(conditional-predicate).then(scalar-expression) .when(conditional-predicate).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    generalCase in interface QueryDefinition
    
    Returns:
    
    empty general case expression
  - groupBy
```
public QueryDefinition groupBy(PathExpression... pathExprs)
```
    Description copied from interface: QueryDefinition
    
    Specify the items that are used to form groups over the query results. Replaces the previous group-by list, if any.
    
    Specified by:
    
    groupBy in interface QueryDefinition
    
    Returns:
    
    the modified QueryDefinition instance
  - groupBy
```
public QueryDefinition groupBy(java.util.List<PathExpression> pathExprList)
```
    Description copied from interface: QueryDefinition
    
    Specify the items that are used to form groups over the query results. Replaces the previous group-by list, if any.
    
    Specified by:
    
    groupBy in interface QueryDefinition
    
    Returns:
    
    the modified QueryDefinition instance
  - having
```
public QueryDefinition having(Predicate predicate)
```
    Description copied from interface: QueryDefinition
    
    Specify the restrictions over the groups of a query. Replaces the previous having restriction(s), if any.
    
    Specified by:
    
    having in interface QueryDefinition
    
    Returns:
    
    the modified QueryDefinition Instance
  - literal
```
public Expression literal(java.lang.String s)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to a String value.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Parameters:
    
    s - - string value
    
    Returns:
    
    the corresponding Expression literal
  - literal
```
public Expression literal(java.lang.Number n)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to a numeric value.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Parameters:
    
    n - - numeric value
    
    Returns:
    
    the corresponding Expression literal
  - literal
```
public Expression literal(boolean b)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to a boolean value.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Parameters:
    
    b - - boolean value
    
    Returns:
    
    the corresponding Expression literal
  - literal
```
public Expression literal(java.util.Calendar c)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to a Calendar value.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Parameters:
    
    c - - Calendar value
    
    Returns:
    
    the corresponding Expression literal
  - literal
```
public Expression literal(java.util.Date d)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to a Date value.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Parameters:
    
    d - - Date value
    
    Returns:
    
    the corresponding Expression literal
  - literal
```
public Expression literal(char c)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to a character value.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Returns:
    
    the corresponding Expression literal
  - literal
```
public Expression literal(java.lang.Class cls)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to an entity class.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Parameters:
    
    cls - - entity class
    
    Returns:
    
    the corresponding Expression literal
  - literal
```
public Expression literal(java.lang.Enum<?> e)
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to an enum.
    
    Specified by:
    
    literal in interface QueryDefinition
    
    Parameters:
    
    e - - enum
    
    Returns:
    
    the corresponding Expression literal
  - newInstance
```
public SelectItem newInstance(java.lang.Class cls,
                              SelectItem... args)
```
    Description copied from interface: QueryDefinition
    
    Specify that a constructor for the given class is to be applied to the corresponding query results after the query is executed. The class must have a constructor that accepts the Java argument types corresponding to the given select items.
    
    Specified by:
    
    newInstance in interface QueryDefinition
    
    Parameters:
    
    cls - - a class with the correponding constructor
    
    args - - select items that correspond to result types that are valid as arguments to the constructor
  - nullLiteral
```
public Expression nullLiteral()
```
    Description copied from interface: QueryDefinition
    
    Create an Expression corresponding to a null value.
    
    Specified by:
    
    nullLiteral in interface QueryDefinition
    
    Returns:
    
    the corresponding Expression literal
  - nullif
```
public Expression nullif(Expression exp1,
                         Expression exp2)
```
    Description copied from interface: QueryDefinition
    
    nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
    
    Specified by:
    
    nullif in interface QueryDefinition
    
    Returns:
    
    Expression corresponding to the given nullif expression
  - nullif
```
public Expression nullif(java.lang.Number arg1,
                         java.lang.Number arg2)
```
    Description copied from interface: QueryDefinition
    
    nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
    
    Specified by:
    
    nullif in interface QueryDefinition
    
    Returns:
    
    Expression corresponding to the given nullif expression
  - nullif
```
public Expression nullif(java.lang.String arg1,
                         java.lang.String arg2)
```
    Description copied from interface: QueryDefinition
    
    nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
    
    Specified by:
    
    nullif in interface QueryDefinition
    
    arg2 - Criteria API Java Persistence 2.0, Public Review Draft Criteria API Interfaces 10/31/08 158 JSR-317 Public Review Draft Sun Microsystems, Inc.
    
    Returns:
    
    Expression corresponding to the given nullif expression
  - nullif
```
public Expression nullif(java.util.Date arg1,
                         java.util.Date arg2)
```
    Description copied from interface: QueryDefinition
    
    nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
    
    Specified by:
    
    nullif in interface QueryDefinition
    
    Returns:
    
    Expression corresponding to the given nullif expression
  - nullif
```
public Expression nullif(java.util.Calendar arg1,
                         java.util.Calendar arg2)
```
    Description copied from interface: QueryDefinition
    
    nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
    
    Specified by:
    
    nullif in interface QueryDefinition
    
    Returns:
    
    Expression corresponding to the given nullif expression
  - nullif
```
public Expression nullif(java.lang.Class arg1,
                         java.lang.Class arg2)
```
    Description copied from interface: QueryDefinition
    
    nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
    
    Specified by:
    
    nullif in interface QueryDefinition
    
    Returns:
    
    Expression corresponding to the given nullif expression
  - nullif
```
public Expression nullif(java.lang.Enum<?> arg1,
                         java.lang.Enum<?> arg2)
```
    Description copied from interface: QueryDefinition
    
    nullif This is equivalent to a case expression that tests whether its arguments are equal, returning null if they are and the value of the first expression if they are not.
    
    Specified by:
    
    nullif in interface QueryDefinition
    
    Returns:
    
    Expression corresponding to the given nullif expression
  - orderBy
```
public QueryDefinition orderBy(OrderByItem... orderByItems)
```
    Description copied from interface: QueryDefinition
    
    Specify the items of the select list that are used in ordering the query results. Replaces the previous order-by list, if any.
    
    Specified by:
    
    orderBy in interface QueryDefinition
    
    Parameters:
    
    orderByItems - - one or more OrderByItem instances
    
    Returns:
    
    the modified QueryDefinition instance
  - orderBy
```
public QueryDefinition orderBy(java.util.List<OrderByItem> orderByItemList)
```
    Description copied from interface: QueryDefinition
    
    Specify the items of the select list that are used in ordering the query results. Replaces the previous order-by list, if any.
    
    Specified by:
    
    orderBy in interface QueryDefinition
    
    Parameters:
    
    orderByItemList - - a list containing one or more OrderByItem instances
    
    Returns:
    
    the modified QueryDefinition instance
  - param
```
public Expression param(java.lang.String name)
```
    Description copied from interface: QueryDefinition
    
    Specify use of a parameter of the given name.
    
    Specified by:
    
    param in interface QueryDefinition
    
    Returns:
    
    an Expression corresponding to a named parameter
  - predicate
```
public Predicate predicate(boolean b)
```
    Description copied from interface: QueryDefinition
    
    Create a predicate value from the given boolean.
    
    Specified by:
    
    predicate in interface QueryDefinition
    
    Parameters:
    
    b - boolean value
    
    Returns:
    
    a true or false predicate
  - select
```
public QueryDefinition select(SelectItem... selectItems)
```
    Description copied from interface: QueryDefinition
    
    Specify the objects / values to be returned. Replaces the previous select list, if any. If no select items are specified and there is only one query root, the root entity is assumed to be the result.
    
    Specified by:
    
    select in interface QueryDefinition
    
    Parameters:
    
    selectItems - - one or more SelectItem instances
    
    Returns:
    
    the modified query definition instance
  - select
```
public QueryDefinition select(java.util.List<SelectItem> selectItemList)
```
    Description copied from interface: QueryDefinition
    
    Specify the objects / values to be returned. Replaces the previous select list, if any. If no select items are specified and there is only one query root, the root entity is assumed to be the result.
    
    Specified by:
    
    select in interface QueryDefinition
    
    Parameters:
    
    selectItemList - - a list containing one or more SelectItem instances
    
    Returns:
    
    the modified query definition instance
  - selectDistinct
```
public QueryDefinition selectDistinct(SelectItem... selectItems)
```
    Description copied from interface: QueryDefinition
    
    Specify the objects / values to be returned. Duplicate results will be eliminated. Replaces the previous select list, if any. If no select items are specified and there is only one query root, the root entity is assumed to be the result.
    
    Specified by:
    
    selectDistinct in interface QueryDefinition
    
    Parameters:
    
    selectItems - - one or more SelectItem instances
    
    Returns:
    
    the modified query definition instance
  - selectDistinct
```
public QueryDefinition selectDistinct(java.util.List<SelectItem> selectItemList)
```
    Description copied from interface: QueryDefinition
    
    Specify the objects / values to be returned. Duplicate results will be eliminated. Replaces the previous select list, if any. If no select items are specified, and there is only one query root, the root entity is assumed to be the result. is assumed to be the result.
    
    Specified by:
    
    selectDistinct in interface QueryDefinition
    
    Parameters:
    
    selectItemList - - a list containing one or more SelectItem instances
    
    Returns:
    
    the modified query definition instance
  - simpleCase
```
public CaseExpression simpleCase(Expression caseOperand)
```
    Description copied from interface: QueryDefinition
    
    Create a simple case expression with the given case operand. A simple case expression is of the form:
    simpleCase(case-operand) .when(scalar-expression).then(scalar-expression) .when(scalar-expression).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    simpleCase in interface QueryDefinition
    
    Parameters:
    
    caseOperand - - expression used for testing against the when scalar expressions
    
    Returns:
    
    case expression with the given case operand
  - simpleCase
```
public CaseExpression simpleCase(java.lang.Number caseOperand)
```
    Description copied from interface: QueryDefinition
    
    Create a simple case expression with the given case operand. A simple case expression is of the form:
    simpleCase(case-operand) .when(scalar-expression).then(scalar-expression) .when(scalar-expression).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    simpleCase in interface QueryDefinition
    
    Parameters:
    
    caseOperand - - numeric value used for testing against the when scalar expressions
    
    Returns:
    
    case expression with the given case operand
  - simpleCase
```
public CaseExpression simpleCase(java.lang.String caseOperand)
```
    Description copied from interface: QueryDefinition
    
    Create a simple case expression with the given case operand. A simple case expression is of the form:
    simpleCase(case-operand) .when(scalar-expression).then(scalar-expression) .when(scalar-expression).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    simpleCase in interface QueryDefinition
    
    Parameters:
    
    caseOperand - - value used for testing against the when scalar expressions
    
    Returns:
    
    case expression with the given case operand
  - simpleCase
```
public CaseExpression simpleCase(java.util.Date caseOperand)
```
    Description copied from interface: QueryDefinition
    
    Create a simple case expression with the given case operand. A simple case expression is of the form:
    simpleCase(case-operand) .when(scalar-expression).then(scalar-expression) .when(scalar-expression).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    simpleCase in interface QueryDefinition
    
    Parameters:
    
    caseOperand - - value used for testing against the when scalar expressions
    
    Returns:
    
    case expression with the given case operand
  - simpleCase
```
public CaseExpression simpleCase(java.util.Calendar caseOperand)
```
    Description copied from interface: QueryDefinition
    
    Create a simple case expression with the given case operand. A simple case expression is of the form:
    simpleCase(case-operand) .when(scalar-expression).then(scalar-expression) .when(scalar-expression).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    simpleCase in interface QueryDefinition
    
    Parameters:
    
    caseOperand - - value used for testing against the when scalar expressions
    
    Returns:
    
    case expression with the given case operand
  - simpleCase
```
public CaseExpression simpleCase(java.lang.Class caseOperand)
```
    Description copied from interface: QueryDefinition
    
    Create a simple case expression with the given case operand. A simple case expression is of the form:
    simpleCase(case-operand) .when(scalar-expression).then(scalar-expression) .when(scalar-expression).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    simpleCase in interface QueryDefinition
    
    Parameters:
    
    caseOperand - - value used for testing against the when scalar expressions
    
    Returns:
    
    case expression with the given case operand
  - simpleCase
```
public CaseExpression simpleCase(java.lang.Enum<?> caseOperand)
```
    Description copied from interface: QueryDefinition
    
    Create a simple case expression with the given case operand. A simple case expression is of the form:
    simpleCase(case-operand) .when(scalar-expression).then(scalar-expression) .when(scalar-expression).then(scalar-expression) ... .elseCase(scalar-expression)
    
    Specified by:
    
    simpleCase in interface QueryDefinition
    
    Parameters:
    
    caseOperand - - value used for testing against the when scalar expressions
    
    Returns:
    
    case expression with the given case operand
  - where
```
public QueryDefinition where(Predicate predicate)
```
    Description copied from interface: QueryDefinition
    
    Modifies the query definition to restrict the result of the query according to the specified predicate. Replaces the previously added restriction(s), if any.
    
    Specified by:
    
    where in interface QueryDefinition
    
    Parameters:
    
    predicate - - a simple or compound conditional predicate
    
    Returns:
    
    the modified QueryDefinition instance
  - getParent
```
public org.apache.openjpa.persistence.query.AbstractPath getParent()
```
    Gets the parent from which this receiver has been derived. Can be null for a root path.
  - getOperator
```
public PathOperator getOperator()
```
    Gets operator that derived this receiver from its parent.
  - getLastSegment
```
public java.lang.Object getLastSegment()
```
    Gets the last segment of this path. Concrete implementation should return a covariant type.
  - avg
```
public Aggregate avg()
```
    Description copied from interface: PathExpression
    
    Specify that the avg operation is to be applied. The path expression must correspond to an attribute of a numeric type. It is not permitted to invoke this method on a path expression that corresponds to a multi-valued association or element collection.
    
    Specified by:
    
    avg in interface PathExpression
    
    Returns:
    
    the resulting aggregate
  - count
```
public Aggregate count()
```
    Description copied from interface: PathExpression
    
    Specify that the count operation is to be applied. It is not permitted to invoke this method on a path expression that corresponds to a multi-valued association or element collection.
    
    Specified by:
    
    count in interface PathExpression
    
    Returns:
    
    the resulting aggregate
  - isEmpty
```
public Predicate isEmpty()
```
    Description copied from interface: PathExpression
    
    Add a restriction that the path expression must correspond to an association or element collection that is empty (has no elements). This method can only be invoked on a path expression that corresponds to a multi-valued association or to an element collection.
    
    Specified by:
    
    isEmpty in interface PathExpression
    
    Returns:
    
    predicate corresponding to the restriction
  - max
```
public Aggregate max()
```
    Description copied from interface: PathExpression
    
    Specify that the max operation is to be applied. The path expression must correspond to an attribute of an orderable type. It is not permitted to invoke this method on a path expression that corresponds to a multi-valued association or element collection.
    
    Specified by:
    
    max in interface PathExpression
    
    Returns:
    
    the resulting aggregate
  - min
```
public Aggregate min()
```
    Description copied from interface: PathExpression
    
    Specify that the min operation is to be applied. The path expression must correspond to an attribute of an orderable type. It is not permitted to invoke this method on a path expression that corresponds to a multi-valued association or element collection.
    
    Specified by:
    
    min in interface PathExpression
    
    Returns:
    
    the resulting aggregate
  - size
```
public Expression size()
```
    Description copied from interface: PathExpression
    
    Return an expression that corresponds to the number of elements association or element collection corresponding to the path expression. This method can only be invoked on a path expression that corresponds to a multi-valued association or to an element collection.
    
    Specified by:
    
    size in interface PathExpression
    
    Returns:
    
    expression denoting the size
  - sum
```
public Aggregate sum()
```
    Description copied from interface: PathExpression
    
    Specify that the sum operation is to be applied. The path expression must correspond to an attribute of a numeric type. It is not permitted to invoke this method on a path expression that corresponds to a multi-valued association or element collection.
    
    Specified by:
    
    sum in interface PathExpression
    
    Returns:
    
    the resulting aggregate
  - type
```
public Expression type()
```
    Description copied from interface: PathExpression
    
    Return an expression that corresponds to the type of the entity. This method can only be invoked on a path expression corresponding to an entity. It is not permitted to invoke this method on a path expression that corresponds to a multi-valued association.
    
    Specified by:
    
    type in interface PathExpression
    
    Returns:
    
    expression denoting the entity's type
  - abs
```
public Expression abs()
```
    Description copied from interface: Expression
    
    Absolute value. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    abs in interface Expression
    
    Returns:
    
    expression corresponding to the absolute value
  - concat
```
public Expression concat(java.lang.String... str)
```
    Description copied from interface: Expression
    
    Concatenate a string with other string(s). This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    concat in interface Expression
    
    Parameters:
    
    str - - string(s)
    
    Returns:
    
    expression denoting the concatenation of the strings, starting with the string corresponding to the expression on which the method was invoked.
  - concat
```
public Expression concat(Expression... exprs)
```
    Description copied from interface: Expression
    
    Concatenate a string with other string(s). This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    concat in interface Expression
    
    Parameters:
    
    exprs - - expression(s) corresponding to string(s)
    
    Returns:
    
    expression denoting the concatenation of the strings, starting with the string corresponding to the expression on which the method was invoked.
  - dividedBy
```
public Expression dividedBy(java.lang.Number num)
```
    Description copied from interface: Expression
    
    Division. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    dividedBy in interface Expression
    
    Parameters:
    
    num - - divisor
    
    Returns:
    
    expression denoting the result of dividing the number corresponding to the expression on which the method was invoked by the argument
  - dividedBy
```
public Expression dividedBy(Expression expr)
```
    Description copied from interface: Expression
    
    Division. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    dividedBy in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to the divisor
    
    Returns:
    
    expression denoting the result of dividing the number corresponding to the expression on which the method was invoked by the number denoted by the argument
  - in
```
public Predicate in(java.lang.String... strings)
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the expression value is a member of the argument list.
    
    Specified by:
    
    in in interface Expression
    
    Returns:
    
    conditional predicate
  - in
```
public Predicate in(java.lang.Number... nums)
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the expression value is a member of the argument list.
    
    Specified by:
    
    in in interface Expression
    
    Returns:
    
    conditional predicate
  - in
```
public Predicate in(java.lang.Enum<?>... enums)
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the expression value is a member of the argument list.
    
    Specified by:
    
    in in interface Expression
    
    Returns:
    
    conditional predicate
  - in
```
public Predicate in(java.lang.Class... classes)
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the expression value is a member of the argument list.
    
    Specified by:
    
    in in interface Expression
    
    Returns:
    
    conditional predicate
  - in
```
public Predicate in(Expression... params)
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the expression value is a member of the argument list.
    
    Specified by:
    
    in in interface Expression
    
    Returns:
    
    conditional predicate
  - in
```
public Predicate in(Subquery subquery)
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the expression value is a member of a subquery result.
    
    Specified by:
    
    in in interface Expression
    
    Returns:
    
    conditional predicate
  - isNull
```
public Predicate isNull()
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the value of the expression is null.
    
    Specified by:
    
    isNull in interface Expression
    
    Returns:
    
    conditional predicate
  - length
```
public Expression length()
```
    Description copied from interface: Expression
    
    String length This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    length in interface Expression
    
    Returns:
    
    expression denoting the length of the string.
  - locate
```
public Expression locate(java.lang.String str)
```
    Description copied from interface: Expression
    
    Locate a string contained within the string corresponding to the expression on which the method was invoked. The search is started at position 1 (first string position). This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    locate in interface Expression
    
    Parameters:
    
    str - - string to be located
    
    Returns:
    
    expression denoting the first position at which the string was found or expression denoting 0 if the string was not found
  - locate
```
public Expression locate(Expression expr)
```
    Description copied from interface: Expression
    
    Locate a string contained within the string corresponding to the expression on which the method was invoked. The search is started at position 1 (first string position). This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    locate in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to the string to be located
    
    Returns:
    
    expression denoting the first position at which the string was found or expression denoting 0 if the string was not found
  - locate
```
public Expression locate(java.lang.String str,
                         int position)
```
    Description copied from interface: Expression
    
    Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    locate in interface Expression
    
    Parameters:
    
    str - - string to be located
    
    position - - position at which to start the search
    
    Returns:
    
    expression denoting the first position at which the string was found or expression denoting 0 if the string was not found
  - locate
```
public Expression locate(java.lang.String str,
                         Expression position)
```
    Description copied from interface: Expression
    
    Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    locate in interface Expression
    
    Parameters:
    
    str - - string to be located
    
    position - - expression corresponding to position at which to start the search
    
    Returns:
    
    expression denoting the first position at which the string was found or expression denoting 0 if the string was not found
  - locate
```
public Expression locate(Expression str,
                         int position)
```
    Description copied from interface: Expression
    
    Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    locate in interface Expression
    
    Parameters:
    
    str - - expression corresponding to the string to be located
    
    position - - position at which to start the search
    
    Returns:
    
    expression denoting the first position at which the string was found or expression denoting 0 if the string was not found
  - locate
```
public Expression locate(Expression str,
                         Expression position)
```
    Description copied from interface: Expression
    
    Locate a string contained within the string corresponding to the expression on which the method was invoked, starting at a specified search position. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    locate in interface Expression
    
    Parameters:
    
    str - - expression corresponding to the string to be located
    
    position - - expression corresponding to position at which to start the search
    
    Returns:
    
    expression denoting the first position at which the string was found or expression denoting 0 if the string was not found
  - lower
```
public Expression lower()
```
    Description copied from interface: Expression
    
    Convert string to lowercase. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    lower in interface Expression
    
    Returns:
    
    expression denoting the string in lowercase
  - member
```
public Predicate member(PathExpression arg)
```
    Description copied from interface: Expression
    
    Create a predicate for testing whether the expression is a member of the association or element collection denoted by the path expression. The argument must correspond to a collection-valued association or element collection of like type.
    
    Specified by:
    
    member in interface Expression
    
    Parameters:
    
    arg - - a path expression that specifies a collection-valued association or an element collection
    
    Returns:
    
    conditional predicate
  - minus
```
public Expression minus()
```
    Description copied from interface: Expression
    
    Unary minus. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    minus in interface Expression
    
    Returns:
    
    expression denoting the unary minus of the expression
  - minus
```
public Expression minus(java.lang.Number num)
```
    Description copied from interface: Expression
    
    Subtraction. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    minus in interface Expression
    
    Parameters:
    
    num - - subtrahend
    
    Returns:
    
    expression denoting the result of subtracting the argument from the number corresponding to the expression on which the method was invoked.
  - minus
```
public Expression minus(Expression expr)
```
    Description copied from interface: Expression
    
    Subtraction. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    minus in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to subtrahend
    
    Returns:
    
    expression denoting the result of subtracting the number denoted by the argument from the number corresponding to the expression on which the method was invoked.
  - mod
```
public Expression mod(int num)
```
    Description copied from interface: Expression
    
    Modulo operation. This must be invoked on an expression corresponding to an integer value
    
    Specified by:
    
    mod in interface Expression
    
    Parameters:
    
    num - - integer divisor
    
    Returns:
    
    expression corresponding to the integer remainder of the division of the integer corresponding to the expression on which the method was invoked by the argument.
  - mod
```
public Expression mod(Expression expr)
```
    Description copied from interface: Expression
    
    Modulo operation. This must be invoked on an expression corresponding to an integer value
    
    Specified by:
    
    mod in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to integer divisor
    
    Returns:
    
    expression corresponding to the integer remainder of the division of the integer corresponding to the expression on which the method was invoked by the argument.
  - plus
```
public Expression plus(java.lang.Number num)
```
    Description copied from interface: Expression
    
    Addition. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    plus in interface Expression
    
    Parameters:
    
    num - - number to be added
    
    Returns:
    
    expression denoting the sum
  - plus
```
public Expression plus(Expression expr)
```
    Description copied from interface: Expression
    
    Addition. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    plus in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to number to be added
    
    Returns:
    
    expression denoting the sum
  - sqrt
```
public Expression sqrt()
```
    Description copied from interface: Expression
    
    Square root. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    sqrt in interface Expression
    
    Returns:
    
    expression corresponding to the square root
  - substring
```
public Expression substring(int start)
```
    Description copied from interface: Expression
    
    Extract a substring starting at specified position through to the end of the string. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    substring in interface Expression
    
    Parameters:
    
    start - - start position (1 indicates first position)
    
    Returns:
    
    expression denoting the extracted substring
  - substring
```
public Expression substring(Expression start)
```
    Description copied from interface: Expression
    
    Extract a substring starting at specified position through to the end of the string. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    substring in interface Expression
    
    Parameters:
    
    start - - expression denoting start position (1 indicates first position)
    
    Returns:
    
    expression denoting the extracted substring
  - substring
```
public Expression substring(int start,
                            int len)
```
    Description copied from interface: Expression
    
    Extract a substring. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    substring in interface Expression
    
    Parameters:
    
    start - - start position (1 indicates first position)
    
    len - - length of the substring to be returned
    
    Returns:
    
    expression denoting the extracted substring
  - substring
```
public Expression substring(int start,
                            Expression len)
```
    Description copied from interface: Expression
    
    Extract a substring. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    substring in interface Expression
    
    Parameters:
    
    start - - start position (1 indicates first position)
    
    len - - expression denoting length of the substring to return
    
    Returns:
    
    expression denoting the extracted substring
  - substring
```
public Expression substring(Expression start,
                            int len)
```
    Description copied from interface: Expression
    
    Extract a substring. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    substring in interface Expression
    
    Parameters:
    
    start - - expression denoting start position (1 indicates first position)
    
    len - - length of the substring to return
    
    Returns:
    
    expression denoting the extracted substring
  - substring
```
public Expression substring(Expression start,
                            Expression len)
```
    Description copied from interface: Expression
    
    Extract a substring. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    substring in interface Expression
    
    Parameters:
    
    start - - expression denoting start position (1 indicates first position)
    
    len - - expression denoting length of the substring to return
    
    Returns:
    
    expression denoting the extracted substring
  - times
```
public Expression times(java.lang.Number num)
```
    Description copied from interface: Expression
    
    Multiplication. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    times in interface Expression
    
    Parameters:
    
    num - - multiplier
    
    Returns:
    
    expression denoting the result of multiplying the argument with the number corresponding to the expression on which the method was invoked.
  - times
```
public Expression times(Expression expr)
```
    Description copied from interface: Expression
    
    Multiplication. This method must be invoked on an expression corresponding to a number.
    
    Specified by:
    
    times in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to the multiplier
    
    Returns:
    
    expression denoting the result of multiplying the number denoted by the argument with the number corresponding to the expression on which the method was invoked.
  - trim
```
public Expression trim()
```
    Description copied from interface: Expression
    
    Trim leading and trailing blanks. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    trim in interface Expression
    
    Returns:
    
    expression denoting trimmed string
  - trim
```
public Expression trim(TrimSpec spec)
```
    Description copied from interface: Expression
    
    Trim leading, trailing blanks (or both) as specified by trim spec. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    trim in interface Expression
    
    Parameters:
    
    spec - - trim specification
    
    Returns:
    
    expression denoting trimmed string
  - trim
```
public Expression trim(char c)
```
    Description copied from interface: Expression
    
    Trim leading and trailing occurrences of character from the string. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    trim in interface Expression
    
    Parameters:
    
    c - - character to be trimmed
    
    Returns:
    
    expression denoting trimmed string
  - trim
```
public Expression trim(char c,
                       TrimSpec spec)
```
    Description copied from interface: Expression
    
    Trim occurrences of the character from leading or trailing (or both) positions of the string, as specified by trim spec. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    trim in interface Expression
    
    Parameters:
    
    c - - character to be trimmed
    
    spec - - trim specification
    
    Returns:
    
    expression denoting trimmed string
  - trim
```
public Expression trim(Expression expr)
```
    Description copied from interface: Expression
    
    Trim leading and trailing occurrences of character specified by the expression argument from the string. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    trim in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to the character to be trimmed
    
    Returns:
    
    expression denoting trimmed string
  - trim
```
public Expression trim(Expression expr,
                       TrimSpec spec)
```
    Description copied from interface: Expression
    
    Trim occurrences of the character specified by the expression argument from leading or trailing (or both) positions of the string, as specified by trim spec. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    trim in interface Expression
    
    Parameters:
    
    expr - - expression corresponding to the character to be trimmed
    
    spec - - trim specification
    
    Returns:
    
    expression denoting trimmed string
  - upper
```
public Expression upper()
```
    Description copied from interface: Expression
    
    Convert string to uppercase. This method must be invoked on an expression corresponding to a string.
    
    Specified by:
    
    upper in interface Expression
    
    Returns:
    
    expression denoting the string in uppercase
  - asc
```
public OrderByItem asc()
```
    Description copied from interface: SelectItem
    
    Return an OrderByItem referencing the SelectItem and specifying ascending ordering. The SelectItem must correspond to an orderable value.
    
    Specified by:
    
    asc in interface SelectItem
    
    Returns:
    
    order-by item
  - desc
```
public OrderByItem desc()
```
    Description copied from interface: SelectItem
    
    Return an OrderByItem referencing the SelectItem and specifying descending ordering. The SelectItem must correspond to an orderable value.
    
    Specified by:
    
    desc in interface SelectItem
    
    Returns:
    
    order-by item
  - between
```
public Predicate between(PredicateOperand arg1,
                         PredicateOperand arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - PredicateOperand instance or parameter
    
    arg2 - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(PredicateOperand arg1,
                         java.lang.Number arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - PredicateOperand instance or parameter
    
    arg2 - - numeric
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.lang.Number arg1,
                         PredicateOperand arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - numeric
    
    arg2 - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.lang.Number arg1,
                         java.lang.Number arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - numeric
    
    arg2 - - numeric
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(PredicateOperand arg1,
                         java.lang.String arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - PredicateOperand instance or parameter
    
    arg2 - - string
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.lang.String arg1,
                         PredicateOperand arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - string
    
    arg2 - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.lang.String arg1,
                         java.lang.String arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - string
    
    arg2 - - string
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(PredicateOperand arg1,
                         java.util.Date arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - PredicateOperand instance or parameter
    
    arg2 - - date
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.util.Date arg1,
                         PredicateOperand arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - date
    
    arg2 - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.util.Date arg1,
                         java.util.Date arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - date
    
    arg2 - - date
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(PredicateOperand arg1,
                         java.util.Calendar arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - PredicateOperand instance or parameter
    
    arg2 - - calendar
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.util.Calendar arg1,
                         PredicateOperand arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - calendar
    
    arg2 - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - between
```
public Predicate between(java.util.Calendar arg1,
                         java.util.Calendar arg2)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand lies between (inclusive) the two arguments.
    
    Specified by:
    
    between in interface PredicateOperand
    
    Parameters:
    
    arg1 - - calendar
    
    arg2 - - calendar
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(PredicateOperand arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    arg - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(java.lang.Class cls)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    cls - - entity class
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(java.lang.Number arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    arg - - numeric
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(java.lang.String arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    arg - - string value
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(boolean arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    arg - - boolean value
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(java.util.Date arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    arg - - date
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(java.util.Calendar arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    arg - - calendar
    
    Returns:
    
    conditional predicate
  - equal
```
public Predicate equal(java.lang.Enum<?> e)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing equality with the specified argument.
    
    Specified by:
    
    equal in interface PredicateOperand
    
    Parameters:
    
    e - - enum
    
    Returns:
    
    conditional predicate
  - greaterEqual
```
public Predicate greaterEqual(PredicateOperand arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
    
    Specified by:
    
    greaterEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - greaterEqual
```
public Predicate greaterEqual(java.lang.Number arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
    
    Specified by:
    
    greaterEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - numeric
    
    Returns:
    
    conditional predicate
  - greaterEqual
```
public Predicate greaterEqual(java.lang.String arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
    
    Specified by:
    
    greaterEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - string
    
    Returns:
    
    conditional predicate
  - greaterEqual
```
public Predicate greaterEqual(java.util.Date arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
    
    Specified by:
    
    greaterEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - date
    
    Returns:
    
    conditional predicate
  - greaterEqual
```
public Predicate greaterEqual(java.util.Calendar arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than or equal to the argument.
    
    Specified by:
    
    greaterEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - calendar
    
    Returns:
    
    conditional predicate
  - greaterThan
```
public Predicate greaterThan(PredicateOperand arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than the argument.
    
    Specified by:
    
    greaterThan in interface PredicateOperand
    
    Parameters:
    
    arg - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - greaterThan
```
public Predicate greaterThan(java.lang.Number arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than the argument.
    
    Specified by:
    
    greaterThan in interface PredicateOperand
    
    Parameters:
    
    arg - - numeric
    
    Returns:
    
    conditional predicate
  - greaterThan
```
public Predicate greaterThan(java.lang.String arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than the argument.
    
    Specified by:
    
    greaterThan in interface PredicateOperand
    
    Parameters:
    
    arg - - string
    
    Returns:
    
    conditional predicate
  - greaterThan
```
public Predicate greaterThan(java.util.Date arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than the argument.
    
    Specified by:
    
    greaterThan in interface PredicateOperand
    
    Parameters:
    
    arg - - date
    
    Returns:
    
    conditional predicate
  - greaterThan
```
public Predicate greaterThan(java.util.Calendar arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is greater than the argument.
    
    Specified by:
    
    greaterThan in interface PredicateOperand
    
    Parameters:
    
    arg - - calendar
    
    Returns:
    
    conditional predicate
  - lessEqual
```
public Predicate lessEqual(PredicateOperand arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
    
    Specified by:
    
    lessEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - lessEqual
```
public Predicate lessEqual(java.lang.Number arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
    
    Specified by:
    
    lessEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - numeric
    
    Returns:
    
    conditional predicate
  - lessEqual
```
public Predicate lessEqual(java.lang.String arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
    
    Specified by:
    
    lessEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - string
    
    Returns:
    
    conditional predicate
  - lessEqual
```
public Predicate lessEqual(java.util.Date arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
    
    Specified by:
    
    lessEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - date
    
    Returns:
    
    conditional predicate
  - lessEqual
```
public Predicate lessEqual(java.util.Calendar arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than or equal to the argument.
    
    Specified by:
    
    lessEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - calendar
    
    Returns:
    
    conditional predicate
  - lessThan
```
public Predicate lessThan(PredicateOperand arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than the argument.
    
    Specified by:
    
    lessThan in interface PredicateOperand
    
    Parameters:
    
    arg - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - lessThan
```
public Predicate lessThan(java.lang.Number arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than the argument.
    
    Specified by:
    
    lessThan in interface PredicateOperand
    
    Parameters:
    
    arg - - numeric
    
    Returns:
    
    conditional predicate
  - lessThan
```
public Predicate lessThan(java.lang.String arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than the argument.
    
    Specified by:
    
    lessThan in interface PredicateOperand
    
    Parameters:
    
    arg - - string
    
    Returns:
    
    conditional predicate
  - lessThan
```
public Predicate lessThan(java.util.Date arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than the argument.
    
    Specified by:
    
    lessThan in interface PredicateOperand
    
    Parameters:
    
    arg - - date
    
    Returns:
    
    conditional predicate
  - lessThan
```
public Predicate lessThan(java.util.Calendar arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand is less than the argument.
    
    Specified by:
    
    lessThan in interface PredicateOperand
    
    Parameters:
    
    arg - - calendar
    
    Returns:
    
    conditional predicate
  - like
```
public Predicate like(PredicateOperand pattern)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
    
    Specified by:
    
    like in interface PredicateOperand
    
    Returns:
    
    conditional predicate
  - like
```
public Predicate like(PredicateOperand pattern,
                      PredicateOperand escChar)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
    
    Specified by:
    
    like in interface PredicateOperand
    
    Returns:
    
    conditional predicate
  - like
```
public Predicate like(PredicateOperand pattern,
                      char escapeChar)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
    
    Specified by:
    
    like in interface PredicateOperand
    
    Returns:
    
    conditional predicate
  - like
```
public Predicate like(java.lang.String pattern)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
    
    Specified by:
    
    like in interface PredicateOperand
    
    Returns:
    
    conditional predicate
  - like
```
public Predicate like(java.lang.String pattern,
                      PredicateOperand escapeChar)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
    
    Specified by:
    
    like in interface PredicateOperand
    
    Returns:
    
    conditional predicate
  - like
```
public Predicate like(java.lang.String pattern,
                      char escChar)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing whether the PredicateOperand satisfies the given pattern.
    
    Specified by:
    
    like in interface PredicateOperand
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(PredicateOperand arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - PredicateOperand instance or parameter
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(java.lang.Class cls)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    cls - - entity class
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(java.lang.Number arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - numberic value
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(java.lang.String arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - string value
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(boolean arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - boolean value
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(java.util.Date arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - date
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(java.util.Calendar arg)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    arg - - calendar
    
    Returns:
    
    conditional predicate
  - notEqual
```
public Predicate notEqual(java.lang.Enum<?> e)
```
    Description copied from interface: PredicateOperand
    
    Create a predicate for testing inequality with the specified argument.
    
    Specified by:
    
    notEqual in interface PredicateOperand
    
    Parameters:
    
    e - - enum
    
    Returns:
    
    conditional predicate
  - getAliasHint
```
public java.lang.String getAliasHint(org.apache.openjpa.persistence.query.AliasContext ctx)
```
    Description copied from interface: Visitable
    
    Gets the hint to be used while creating alias.
    
    Specified by:
    
    getAliasHint in interface Visitable
  - asExpression
```
public java.lang.String asExpression(org.apache.openjpa.persistence.query.AliasContext ctx)
```
    Description copied from interface: Visitable
    
    Get a JPQL fragment as used in WHERE clause.
    
    Specified by:
    
    asExpression in interface Visitable
  - asProjection
```
public java.lang.String asProjection(org.apache.openjpa.persistence.query.AliasContext ctx)
```
    Description copied from interface: Visitable
    
    Gets the string representation in SELECT projection.
    
    Specified by:
    
    asProjection in interface Visitable
  - asJoinable
```
public java.lang.String asJoinable(org.apache.openjpa.persistence.query.AliasContext ctx)
```
    Description copied from interface: Visitable
    
    Gets the string representation in FROM clause.
    
    Specified by:
    
    asJoinable in interface Visitable

Class AbstractDomainObject

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface org.apache.openjpa.persistence.query.Expression

Methods inherited from interface org.apache.openjpa.persistence.query.PathExpression

Methods inherited from interface org.apache.openjpa.persistence.query.PredicateOperand

Methods inherited from interface org.apache.openjpa.persistence.query.SelectItem

Methods inherited from interface org.apache.openjpa.persistence.query.Visitable

Field Detail

_parent

_part2

_operator

_owner

SPACE

OPEN_BRACE

CLOSE_BRACE

COMMA

EMPTY

Constructor Detail

AbstractDomainObject

Method Detail

addRoot

addSubqueryRoot

get

join

leftJoin

joinFetch

leftJoinFetch

key

entry

index

value

all

any

some

exists

coalesce

coalesce

coalesce

coalesce

currentDate

currentTime

currentTimestamp

generalCase

groupBy

groupBy

having

literal

literal

literal

literal

literal

literal

literal

literal

newInstance

nullLiteral

nullif

nullif

nullif

nullif

nullif

nullif

nullif

orderBy

orderBy

param

predicate

select

select

selectDistinct

selectDistinct

simpleCase

simpleCase

simpleCase

simpleCase

simpleCase

simpleCase