org.apache.openjpa.persistence.query
Class AbstractDomainObject

java.lang.Object
  org.apache.openjpa.persistence.query.AbstractVisitable
      org.apache.openjpa.persistence.query.ExpressionImpl
          org.apache.openjpa.persistence.query.AbstractPath
              org.apache.openjpa.persistence.query.AbstractDomainObject

All Implemented Interfaces:

Serializable, DomainObject, Expression, OrderByItem, PathExpression, PredicateOperand, QueryDefinition, SelectItem, Subquery, Visitable

Direct Known Subclasses:

FetchPath, JoinPath, NavigationPath, OperatorPath, RootPath

public abstract class AbstractDomainObject
extends AbstractPath
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 inherited from class org.apache.openjpa.persistence.query.AbstractPath

_operator, _owner, _parent, _part2

Fields inherited from class org.apache.openjpa.persistence.query.AbstractVisitable

CLOSE_BRACE, COMMA, EMPTY, OPEN_BRACE, SPACE

Constructor Summary

protected

AbstractDomainObject(QueryDefinitionImpl owner, AbstractPath parent, PathOperator op, Object part2)

Method Summary

DomainObject	addRoot(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.
Expression	coalesce(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(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	coalesce(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	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.
SelectItem	entry() Derives by ENTRY() operation on this path.
Predicate	exists() Adds this path as EXISTS(subquery) to its owning query.
CaseExpression	generalCase() Create an empty general case expression.
PathExpression	get(String attr) Derives a path from this path by navigating through the given field.
QueryDefinition	groupBy(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.
Expression	index() Derives by INDEX() operation on this path.
DomainObject	join(String attr) Derives a path from this path by joining the given field.
FetchJoinObject	joinFetch(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(String attr) Derives a path from this path by outer joining the given field.
FetchJoinObject	leftJoinFetch(String attr) Derives a path from this path by fetch joining the given field.
Expression	literal(boolean b) Create an Expression corresponding to a boolean value.
Expression	literal(Calendar c) Create an Expression corresponding to a Calendar value.
Expression	literal(char c) Create an Expression corresponding to a character value.
Expression	literal(Class cls) Create an Expression corresponding to an entity class.
Expression	literal(Date d) Create an Expression corresponding to a Date value.
Expression	literal(Enum<?> e) Create an Expression corresponding to an enum.
Expression	literal(Number n) Create an Expression corresponding to a numeric value.
Expression	literal(String s) Create an Expression corresponding to a String value.
SelectItem	newInstance(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.
Expression	nullif(Calendar arg1, 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(Class arg1, 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(Date arg1, 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(Enum<?> arg1, 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(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	nullif(Number arg1, 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(String arg1, 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	nullLiteral() Create an Expression corresponding to a null value.
QueryDefinition	orderBy(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(String name) Specify use of a parameter of the given name.
Predicate	predicate(boolean b) Create a predicate value from the given boolean.
QueryDefinition	select(List<SelectItem> selectItemList) Specify the objects / values to be returned.
QueryDefinition	select(SelectItem... selectItems) Specify the objects / values to be returned.
QueryDefinition	selectDistinct(List<SelectItem> selectItemList) Specify the objects / values to be returned.
QueryDefinition	selectDistinct(SelectItem... selectItems) Specify the objects / values to be returned.
CaseExpression	simpleCase(Calendar caseOperand) Create a simple case expression with the given case operand.
CaseExpression	simpleCase(Class caseOperand) Create a simple case expression with the given case operand.
CaseExpression	simpleCase(Date caseOperand) Create a simple case expression with the given case operand.
CaseExpression	simpleCase(Enum<?> 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.
CaseExpression	simpleCase(Number caseOperand) Create a simple case expression with the given case operand.
CaseExpression	simpleCase(String caseOperand) Create a simple case expression with the given case operand.
Subquery	some() Adds this path as SOME(subquery) to its owning query.
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 org.apache.openjpa.persistence.query.AbstractPath

avg, count, getLastSegment, getOperator, getOwner, getParent, isEmpty, max, min, size, split, sum, type

Methods inherited from class org.apache.openjpa.persistence.query.ExpressionImpl

abs, asc, between, between, between, between, between, between, between, between, between, between, between, between, between, concat, concat, desc, dividedBy, dividedBy, equal, equal, equal, equal, equal, equal, equal, equal, getAliasHint, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterEqual, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, in, in, in, in, in, in, isNull, length, lessEqual, lessEqual, lessEqual, lessEqual, lessEqual, lessThan, lessThan, lessThan, lessThan, lessThan, like, like, like, like, like, like, locate, locate, locate, locate, locate, locate, lower, member, minus, minus, minus, mod, mod, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, plus, plus, sqrt, substring, substring, substring, substring, substring, substring, times, times, trim, trim, trim, trim, trim, trim, upper

Methods inherited from class org.apache.openjpa.persistence.query.AbstractVisitable

asExpression, asJoinable, asProjection

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.PathExpression

avg, count, isEmpty, max, min, size, sum, type

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.SelectItem

asc, desc

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.Visitable

asExpression, asJoinable, asProjection

Constructor Detail

AbstractDomainObject

protected AbstractDomainObject(QueryDefinitionImpl owner,
                               AbstractPath parent,
                               PathOperator op,
                               Object part2)

Method Detail

addRoot

public DomainObject addRoot(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(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(Number arg1,
                         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(String arg1,
                         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(Date arg1,
                         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(Calendar arg1,
                         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(Class arg1,
                         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(Enum<?> arg1,
                         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(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(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(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(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(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(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(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(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(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(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