InMemoryExpressionFactory (OpenJPA Parent POM 2.4.3 API)

java.lang.Object
- org.apache.openjpa.kernel.exps.InMemoryExpressionFactory

All Implemented Interfaces:

ExpressionFactory
```
public class InMemoryExpressionFactory
extends Object
implements ExpressionFactory
```
Expression factory implementation that can be used to execute queries in memory.

Author:

Abe White

Constructor Summary

Constructors
Constructor and Description

InMemoryExpressionFactory()

Constructors
Constructor and Description
`InMemoryExpressionFactory()`

Method Summary

Methods
Modifier and Type	Method and Description
`Value`	`abs(Value val)` Return a value representing the absolute value of the given one.
`Value`	`add(Value val1, Value val2)` Return a value representing the two values added together.
`Value`	`all(Value val)` Return an expression representing the given condition.
`Expression`	`and(Expression exp1, Expression exp2)` Return the two expressions AND'd together.
`Value`	`any(Value val)` Return an expression representing the given condition.
`Expression`	`asExpression(Value v)` Return the given value as an expression.
`Value`	`avg(Value val)` Return the average of the given value for all matches.
`Expression`	`bindKeyVariable(Value var, Value val)` Bind the given variable to the key set of the given map value.
`Expression`	`bindValueVariable(Value var, Value val)` Bind the given variable to the value set of the given map value.
`Expression`	`bindVariable(Value var, Value val)` Bind the given variable to the given collection value.
`Value`	`cast(Value val, Class cls)` Cast the value to the given class.
`Value`	`coalesceExpression(Value[] val)` Return a coalesce expression
`Value`	`concat(Value val1, Value val2)` Return a value representing the concatenation of the given target with the given args.
`Expression`	`contains(Value v1, Value v2)` Return an expression representing the given condition.
`Expression`	`containsKey(Value v1, Value v2)` Return an expression representing the given condition.
`Expression`	`containsValue(Value v1, Value v2)` Return an expression representing the given condition.
`Value`	`count(Value val)` Return the count of the given value for all matches.
`List`	`distinct(QueryExpressions exps, boolean fromExtent, List matches)` Filter the given list of matches, removing duplicate entries.
`Value`	`distinct(Value val)` Return distinct values of the given value.
`Value`	`divide(Value val1, Value val2)` Return a value representing the first value divided by the first one.
`Expression`	`emptyExpression()` Return a blank expression; this is used when the filter is empty.
`Expression`	`endsWith(Value v1, Value v2)` Return whether the first string ends with the second.
`Expression`	`equal(Value v1, Value v2)` Return an expression representing the given condition.
`Value`	`generalCaseExpression(Expression[] exp, Value val)` Return a general case expression
`<T extends Date> Value`	`getCurrentDate(Class<T> dateType)` Return a value representing the current date.
`<T extends Date> Value`	`getCurrentTime(Class<T> dateType)` Return a value representing the current time.
`<T extends Date> Value`	`getCurrentTimestamp(Class<T> dateType)` Return a value representing the current timestamp.
`Value`	`getKey(Value val)` Path navigation thru map key
`Value`	`getMapValue(Value map, Value arg)` Return an expression representing the given condition.
`Value`	`getNull()` Return a value representing null.
`Value`	`getObjectId(Value val)` Return the object id of the given value.
`Value`	`getThis()` Return a value representing `this`.
`Expression`	`greaterThan(Value v1, Value v2)` Return an expression representing the given condition.
`Expression`	`greaterThanEqual(Value v1, Value v2)` Return an expression representing the given condition.
`List`	`group(QueryExpressions exps, List matches, StoreContext ctx, Object[] params)` Group the list of matches into a list of lists.
`Value`	`index(Value val)` Return an index/position of the given value within a collection/map.
`Value`	`indexOf(Value val1, Value val2)` Return a value representing the indexOf (LOCATE in JPQL) function on the given target with the given args.
`Expression`	`isEmpty(Value v1)` Return an expression representing the given condition.
`Expression`	`isInstance(Value v1, Class c)` Return whether the first value is an instance of the given class.
`Expression`	`isNotEmpty(Value v1)` Return an expression representing the given condition.
`boolean`	`isVerticalType(Value val)` Return true if the Value is a Type expression and the Type uses joined table strategy.
`Expression`	`lessThan(Value v1, Value v2)` Return an expression representing the given condition.
`Expression`	`lessThanEqual(Value v1, Value v2)` Return an expression representing the given condition.
`Value`	`mapEntry(Value key, Value val)` Return the map entry of the given value.
`Value`	`mapKey(Value key, Value val)` Return the map key of the given value
`protected boolean`	`matches(Exp exp, Object candidate, StoreContext ctx, Object[] params, int i)` Recursive method to evaluate the expression for all possible combinations of unbound variables.
`boolean`	`matches(QueryExpressions exps, ClassMetaData type, boolean subs, Object candidate, StoreContext ctx, Object[] params)` Tests whether the given candidate matches the given type and this expression.
`boolean`	`matches(QueryExpressions exps, Collection group, StoreContext ctx, Object[] params)` Return true if the given group matches the having expression.
`Expression`	`matches(Value v1, Value v2, String single, String multi, String esc)` Return whether the string matches the matching pattern.
`Value`	`max(Value val)` Return the max of the given value for all matches.
`Value`	`min(Value val)` Return the max of the given value for all matches.
`Value`	`mod(Value val1, Value val2)` Return a value representing the first value mod'd by the second one.
`Value`	`multiply(Value val1, Value val2)` Return a value representing the two values multiplied together.
`Value`	`newAggregate(AggregateListener listener, Value arg)` Return the value of the given function.
`Arguments`	`newArgumentList(Value... values)` Return a function argument list consisting of the given values, any of which may itself be an argument list.
`Arguments`	`newArgumentList(Value val1, Value val2)` Return a function argument list consisting of the given values, either of which may itself be an argument list.
`Value`	`newBoundVariable(String name, Class type)` This method will be called only once per variable bound in a `contains` clause, and the returned value will be reused for any further instances of the variable in subexpression of the filter string.
`Parameter`	`newCollectionValuedParameter(Object name, Class type)` Return a value representing a collection-valued parameter.
`Value`	`newExtension(FilterListener listener, Value target, Value arg)` Return the value of the given extension.
`Value`	`newFunction(String functionName, Class<?> resultType, Value... args)` Return a value representing the given datastore function with the given arguments.
`Literal`	`newLiteral(Object val, int parseType)` Return a value representing the given constant, which will be a `Number`, `String`, or `Boolean` instance.
`Parameter`	`newParameter(Object name, Class type)` Return a value representing a parameter for the given value.
`Path`	`newPath()` Return a value representing a path which will consist of a chain of 1 or more field names starting in the namespace of the candidate class.
`Path`	`newPath(Value val)` Return a value representing a path which will consist of a chain of 1 or more field names starting in the namespace of the given value.
`Subquery`	`newSubquery(ClassMetaData candidate, boolean subs, String alias)` Return a subquery.
`Literal`	`newTypeLiteral(Object val, int parseType)` Return a value representing the given constant, which will be a `Number`, `String`, or `Boolean` instance.
`Value`	`newUnboundVariable(String name, Class type)` Return an unbound variable.
`Expression`	`not(Expression exp)` Return the inverse of this expression.
`Expression`	`notEqual(Value v1, Value v2)` Return an expression representing the given condition.
`Expression`	`notMatches(Value v1, Value v2, String single, String multi, String esc)` Return whether the string does not match the given pattern.
`Value`	`nullIfExpression(Value val1, Value val2)` Return a nullif expression
`Expression`	`or(Expression exp1, Expression exp2)` Return the two expressions OR'd together.
`List`	`order(QueryExpressions exps, List matches, StoreContext ctx, Object[] params)` Order the given list of matches on the given value.
`List`	`project(QueryExpressions exps, List matches, StoreContext ctx, Object[] params)` Create the projections for the given results.
`Value`	`simpleCaseExpression(Value caseOperand, Expression[] exp, Value val)` Return a simple case expression
`Value`	`size(Value val)` Return an expression representing the given condition.
`Value`	`sqrt(Value val)` Return the square root of the given value.
`Expression`	`startsWith(Value v1, Value v2)` Return whether the first string starts with the second.
`Value`	`stringLength(Value str)` Returns the number of characters in the String value.
`Value`	`substring(Value val1, Value val2)` Return a value representing the substring function on the given target with the given args.
`Value`	`subtract(Value val1, Value val2)` Return a value representing the second value subtracted from the first.
`Value`	`sum(Value val)` Return the max of the given value for all matches.
`Value`	`toLowerCase(Value val)` Return the upper case of the given value.
`Value`	`toUpperCase(Value val)` Return the upper case of the given value.
`Value`	`trim(Value str, Value trimChar, Boolean where)` Trims the specified specified trimChar from the specified value.
`Value`	`type(Value val)` Return the type/class of the given value.
`Expression`	`whenCondition(Expression exp, Value val)` Return a when condidional clause
`Expression`	`whenScalar(Value val1, Value val2)` Return a when scalar_expression clause

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

- Constructor Detail
  - InMemoryExpressionFactory
```
public InMemoryExpressionFactory()
```
- Method Detail
  - matches
```
public boolean matches(QueryExpressions exps,
              ClassMetaData type,
              boolean subs,
              Object candidate,
              StoreContext ctx,
              Object[] params)
```
    Tests whether the given candidate matches the given type and this expression.
  - matches
```
protected boolean matches(Exp exp,
              Object candidate,
              StoreContext ctx,
              Object[] params,
              int i)
```
    Recursive method to evaluate the expression for all possible combinations of unbound variables. This method simulates a sequence of embedded procedural loops over the extents of all variables in the unbounds list.
  - group
```
public List group(QueryExpressions exps,
         List matches,
         StoreContext ctx,
         Object[] params)
```
    Group the list of matches into a list of lists.
  - matches
```
public boolean matches(QueryExpressions exps,
              Collection group,
              StoreContext ctx,
              Object[] params)
```
    Return true if the given group matches the having expression.
  - project
```
public List project(QueryExpressions exps,
           List matches,
           StoreContext ctx,
           Object[] params)
```
    Create the projections for the given results.
  - order
```
public List order(QueryExpressions exps,
         List matches,
         StoreContext ctx,
         Object[] params)
```
    Order the given list of matches on the given value.
  - distinct
```
public List distinct(QueryExpressions exps,
            boolean fromExtent,
            List matches)
```
    Filter the given list of matches, removing duplicate entries.
  - emptyExpression
```
public Expression emptyExpression()
```
    Description copied from interface: ExpressionFactory
    
    Return a blank expression; this is used when the filter is empty.
    
    Specified by:
    
    emptyExpression in interface ExpressionFactory
  - asExpression
```
public Expression asExpression(Value v)
```
    Description copied from interface: ExpressionFactory
    
    Return the given value as an expression.
    
    Specified by:
    
    asExpression in interface ExpressionFactory
  - equal
```
public Expression equal(Value v1,
               Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    equal in interface ExpressionFactory
  - notEqual
```
public Expression notEqual(Value v1,
                  Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    notEqual in interface ExpressionFactory
  - lessThan
```
public Expression lessThan(Value v1,
                  Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    lessThan in interface ExpressionFactory
  - greaterThan
```
public Expression greaterThan(Value v1,
                     Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    greaterThan in interface ExpressionFactory
  - lessThanEqual
```
public Expression lessThanEqual(Value v1,
                       Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    lessThanEqual in interface ExpressionFactory
  - greaterThanEqual
```
public Expression greaterThanEqual(Value v1,
                          Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    greaterThanEqual in interface ExpressionFactory
  - isEmpty
```
public Expression isEmpty(Value v1)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    isEmpty in interface ExpressionFactory
  - isNotEmpty
```
public Expression isNotEmpty(Value v1)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    isNotEmpty in interface ExpressionFactory
  - contains
```
public Expression contains(Value v1,
                  Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    contains in interface ExpressionFactory
  - containsKey
```
public Expression containsKey(Value v1,
                     Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    containsKey in interface ExpressionFactory
  - containsValue
```
public Expression containsValue(Value v1,
                       Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    containsValue in interface ExpressionFactory
  - getMapValue
```
public Value getMapValue(Value map,
                Value arg)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    getMapValue in interface ExpressionFactory
  - isInstance
```
public Expression isInstance(Value v1,
                    Class c)
```
    Description copied from interface: ExpressionFactory
    
    Return whether the first value is an instance of the given class.
    
    Specified by:
    
    isInstance in interface ExpressionFactory
  - and
```
public Expression and(Expression exp1,
             Expression exp2)
```
    Description copied from interface: ExpressionFactory
    
    Return the two expressions AND'd together.
    
    Specified by:
    
    and in interface ExpressionFactory
  - or
```
public Expression or(Expression exp1,
            Expression exp2)
```
    Description copied from interface: ExpressionFactory
    
    Return the two expressions OR'd together.
    
    Specified by:
    
    or in interface ExpressionFactory
  - not
```
public Expression not(Expression exp)
```
    Description copied from interface: ExpressionFactory
    
    Return the inverse of this expression.
    
    Specified by:
    
    not in interface ExpressionFactory
  - bindVariable
```
public Expression bindVariable(Value var,
                      Value val)
```
    Description copied from interface: ExpressionFactory
    
    Bind the given variable to the given collection value.
    
    Specified by:
    
    bindVariable in interface ExpressionFactory
  - bindKeyVariable
```
public Expression bindKeyVariable(Value var,
                         Value val)
```
    Description copied from interface: ExpressionFactory
    
    Bind the given variable to the key set of the given map value.
    
    Specified by:
    
    bindKeyVariable in interface ExpressionFactory
  - bindValueVariable
```
public Expression bindValueVariable(Value var,
                           Value val)
```
    Description copied from interface: ExpressionFactory
    
    Bind the given variable to the value set of the given map value.
    
    Specified by:
    
    bindValueVariable in interface ExpressionFactory
  - endsWith
```
public Expression endsWith(Value v1,
                  Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return whether the first string ends with the second.
    
    Specified by:
    
    endsWith in interface ExpressionFactory
  - matches
```
public Expression matches(Value v1,
                 Value v2,
                 String single,
                 String multi,
                 String esc)
```
    Description copied from interface: ExpressionFactory
    
    Return whether the string matches the matching pattern.
    
    Specified by:
    
    matches in interface ExpressionFactory
    
    Parameters:
    v1 - the value to compare
    v2 - the pattern against which to compare
    single - the token that signifies a single-character match
    multi - the token that signifies a multi-character match
    esc - the escape token that escapes the matching tokens
  - notMatches
```
public Expression notMatches(Value v1,
                    Value v2,
                    String single,
                    String multi,
                    String esc)
```
    Description copied from interface: ExpressionFactory
    
    Return whether the string does not match the given pattern.
    
    Specified by:
    
    notMatches in interface ExpressionFactory
    
    Parameters:
    v1 - the value to compare
    v2 - the pattern against which to compare
    single - the token that signifies a single-character match
    multi - the token that signifies a multi-character match
    esc - the escape token that escapes the matching tokens
  - startsWith
```
public Expression startsWith(Value v1,
                    Value v2)
```
    Description copied from interface: ExpressionFactory
    
    Return whether the first string starts with the second.
    
    Specified by:
    
    startsWith in interface ExpressionFactory
  - newSubquery
```
public Subquery newSubquery(ClassMetaData candidate,
                   boolean subs,
                   String alias)
```
    Description copied from interface: ExpressionFactory
    
    Return a subquery. Paths for the candidates of the subquery are created with ExpressionFactory.newPath(Value), passing in the subquery as the value.
    
    Specified by:
    
    newSubquery in interface ExpressionFactory
    
    Parameters:
    candidate - the candidate class of the subquery
    subs - whether the query includes subclasses
    alias - the alias given to the query candidate class
  - newPath
```
public Path newPath()
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing a path which will consist of a chain of 1 or more field names starting in the namespace of the candidate class.
    Example: parent.address.city
    
    Specified by:
    
    newPath in interface ExpressionFactory
  - newPath
```
public Path newPath(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing a path which will consist of a chain of 1 or more field names starting in the namespace of the given value.
    Example: var.address.city
    
    Specified by:
    
    newPath in interface ExpressionFactory
  - newLiteral
```
public Literal newLiteral(Object val,
                 int parseType)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the given constant, which will be a Number, String, or Boolean instance.
    
    Specified by:
    
    newLiteral in interface ExpressionFactory
  - newTypeLiteral
```
public Literal newTypeLiteral(Object val,
                     int parseType)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the given constant, which will be a Number, String, or Boolean instance.
    
    Specified by:
    
    newTypeLiteral in interface ExpressionFactory
  - getThis
```
public Value getThis()
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing this.
    
    Specified by:
    
    getThis in interface ExpressionFactory
  - getNull
```
public Value getNull()
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing null.
    
    Specified by:
    
    getNull in interface ExpressionFactory
  - getCurrentDate
```
public <T extends Date> Value getCurrentDate(Class<T> dateType)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the current date.
    
    Specified by:
    
    getCurrentDate in interface ExpressionFactory
  - getCurrentTime
```
public <T extends Date> Value getCurrentTime(Class<T> dateType)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the current time.
    
    Specified by:
    
    getCurrentTime in interface ExpressionFactory
  - getCurrentTimestamp
```
public <T extends Date> Value getCurrentTimestamp(Class<T> dateType)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the current timestamp.
    
    Specified by:
    
    getCurrentTimestamp in interface ExpressionFactory
  - newParameter
```
public Parameter newParameter(Object name,
                     Class type)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing a parameter for the given value. The type may be Object if the parameter is not declared.
    
    Specified by:
    
    newParameter in interface ExpressionFactory
  - newCollectionValuedParameter
```
public Parameter newCollectionValuedParameter(Object name,
                                     Class type)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing a collection-valued parameter. The type may be Object if the parameter is not declared.
    
    Specified by:
    
    newCollectionValuedParameter in interface ExpressionFactory
  - newExtension
```
public Value newExtension(FilterListener listener,
                 Value target,
                 Value arg)
```
    Description copied from interface: ExpressionFactory
    
    Return the value of the given extension.
    
    Specified by:
    
    newExtension in interface ExpressionFactory
  - newAggregate
```
public Value newAggregate(AggregateListener listener,
                 Value arg)
```
    Description copied from interface: ExpressionFactory
    
    Return the value of the given function.
    
    Specified by:
    
    newAggregate in interface ExpressionFactory
  - newArgumentList
```
public Arguments newArgumentList(Value val1,
                        Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a function argument list consisting of the given values, either of which may itself be an argument list.
    
    Specified by:
    
    newArgumentList in interface ExpressionFactory
  - newArgumentList
```
public Arguments newArgumentList(Value... values)
```
    Description copied from interface: ExpressionFactory
    
    Return a function argument list consisting of the given values, any of which may itself be an argument list.
    
    Specified by:
    
    newArgumentList in interface ExpressionFactory
  - newUnboundVariable
```
public Value newUnboundVariable(String name,
                       Class type)
```
    Description copied from interface: ExpressionFactory
    
    Return an unbound variable. This method will only be called once for a given named unbound variable. The type may be Object if the variable is not declared.
    
    Specified by:
    
    newUnboundVariable in interface ExpressionFactory
  - newBoundVariable
```
public Value newBoundVariable(String name,
                     Class type)
```
    Description copied from interface: ExpressionFactory
    
    This method will be called only once per variable bound in a contains clause, and the returned value will be reused for any further instances of the variable in subexpression of the filter string. The type may be Object if the variable is not declared.
    
    Specified by:
    
    newBoundVariable in interface ExpressionFactory
  - cast
```
public Value cast(Value val,
         Class cls)
```
    Description copied from interface: ExpressionFactory
    
    Cast the value to the given class.
    
    Specified by:
    
    cast in interface ExpressionFactory
  - add
```
public Value add(Value val1,
        Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the two values added together.
    
    Specified by:
    
    add in interface ExpressionFactory
  - subtract
```
public Value subtract(Value val1,
             Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the second value subtracted from the first.
    
    Specified by:
    
    subtract in interface ExpressionFactory
  - multiply
```
public Value multiply(Value val1,
             Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the two values multiplied together.
    
    Specified by:
    
    multiply in interface ExpressionFactory
  - divide
```
public Value divide(Value val1,
           Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the first value divided by the first one.
    
    Specified by:
    
    divide in interface ExpressionFactory
  - mod
```
public Value mod(Value val1,
        Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the first value mod'd by the second one.
    
    Specified by:
    
    mod in interface ExpressionFactory
  - abs
```
public Value abs(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the absolute value of the given one.
    
    Specified by:
    
    abs in interface ExpressionFactory
  - indexOf
```
public Value indexOf(Value val1,
            Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the indexOf (LOCATE in JPQL) function on the given target with the given args. The optional second argument is one-based.
    
    Specified by:
    
    indexOf in interface ExpressionFactory
  - concat
```
public Value concat(Value val1,
           Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the concatenation of the given target with the given args.
    
    Specified by:
    
    concat in interface ExpressionFactory
  - stringLength
```
public Value stringLength(Value str)
```
    Description copied from interface: ExpressionFactory
    
    Returns the number of characters in the String value.
    
    Specified by:
    
    stringLength in interface ExpressionFactory
  - trim
```
public Value trim(Value str,
         Value trimChar,
         Boolean where)
```
    Description copied from interface: ExpressionFactory
    
    Trims the specified specified trimChar from the specified value.
    
    Specified by:
    
    trim in interface ExpressionFactory
    
    Parameters:
    str - the value from which to trim
    trimChar - the characters to trim off
    where - which side of the String to trim: null indicates both sides, true indicates leading, and false indicates trailing
  - sqrt
```
public Value sqrt(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the square root of the given value.
    
    Specified by:
    
    sqrt in interface ExpressionFactory
  - substring
```
public Value substring(Value val1,
              Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the substring function on the given target with the given args. Unlike as with String.substring(int), the start index is one-based, and the second argument is the length.
    
    Specified by:
    
    substring in interface ExpressionFactory
  - toUpperCase
```
public Value toUpperCase(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the upper case of the given value.
    
    Specified by:
    
    toUpperCase in interface ExpressionFactory
  - toLowerCase
```
public Value toLowerCase(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the upper case of the given value.
    
    Specified by:
    
    toLowerCase in interface ExpressionFactory
  - avg
```
public Value avg(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the average of the given value for all matches.
    
    Specified by:
    
    avg in interface ExpressionFactory
  - count
```
public Value count(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the count of the given value for all matches.
    
    Specified by:
    
    count in interface ExpressionFactory
  - distinct
```
public Value distinct(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return distinct values of the given value. This is typically used within aggregates, for example: max(distinct(path))
    
    Specified by:
    
    distinct in interface ExpressionFactory
  - max
```
public Value max(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the max of the given value for all matches.
    
    Specified by:
    
    max in interface ExpressionFactory
  - min
```
public Value min(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the max of the given value for all matches.
    
    Specified by:
    
    min in interface ExpressionFactory
  - sum
```
public Value sum(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the max of the given value for all matches.
    
    Specified by:
    
    sum in interface ExpressionFactory
  - any
```
public Value any(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    any in interface ExpressionFactory
  - all
```
public Value all(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    all in interface ExpressionFactory
  - size
```
public Value size(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return an expression representing the given condition.
    
    Specified by:
    
    size in interface ExpressionFactory
  - index
```
public Value index(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return an index/position of the given value within a collection/map.
    
    Specified by:
    
    index in interface ExpressionFactory
  - type
```
public Value type(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the type/class of the given value.
    
    Specified by:
    
    type in interface ExpressionFactory
  - mapEntry
```
public Value mapEntry(Value key,
             Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the map entry of the given value.
    
    Specified by:
    
    mapEntry in interface ExpressionFactory
  - mapKey
```
public Value mapKey(Value key,
           Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the map key of the given value
    
    Specified by:
    
    mapKey in interface ExpressionFactory
  - getKey
```
public Value getKey(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Path navigation thru map key
    
    Specified by:
    
    getKey in interface ExpressionFactory
  - getObjectId
```
public Value getObjectId(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return the object id of the given value.
    
    Specified by:
    
    getObjectId in interface ExpressionFactory
  - generalCaseExpression
```
public Value generalCaseExpression(Expression[] exp,
                          Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return a general case expression
    
    Specified by:
    
    generalCaseExpression in interface ExpressionFactory
  - simpleCaseExpression
```
public Value simpleCaseExpression(Value caseOperand,
                         Expression[] exp,
                         Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return a simple case expression
    
    Specified by:
    
    simpleCaseExpression in interface ExpressionFactory
  - whenCondition
```
public Expression whenCondition(Expression exp,
                       Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return a when condidional clause
    
    Specified by:
    
    whenCondition in interface ExpressionFactory
  - whenScalar
```
public Expression whenScalar(Value val1,
                    Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a when scalar_expression clause
    
    Specified by:
    
    whenScalar in interface ExpressionFactory
  - coalesceExpression
```
public Value coalesceExpression(Value[] val)
```
    Description copied from interface: ExpressionFactory
    
    Return a coalesce expression
    
    Specified by:
    
    coalesceExpression in interface ExpressionFactory
  - nullIfExpression
```
public Value nullIfExpression(Value val1,
                     Value val2)
```
    Description copied from interface: ExpressionFactory
    
    Return a nullif expression
    
    Specified by:
    
    nullIfExpression in interface ExpressionFactory
  - newFunction
```
public Value newFunction(String functionName,
                Class<?> resultType,
                Value... args)
```
    Description copied from interface: ExpressionFactory
    
    Return a value representing the given datastore function with the given arguments.
    
    Specified by:
    
    newFunction in interface ExpressionFactory
  - isVerticalType
```
public boolean isVerticalType(Value val)
```
    Description copied from interface: ExpressionFactory
    
    Return true if the Value is a Type expression and the Type uses joined table strategy.
    
    Specified by:
    
    isVerticalType in interface ExpressionFactory

Class InMemoryExpressionFactory

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

InMemoryExpressionFactory

Method Detail

matches

matches

group

matches

project

order

distinct

emptyExpression

asExpression

equal

notEqual

lessThan

greaterThan

lessThanEqual

greaterThanEqual

isEmpty

isNotEmpty

contains

containsKey

containsValue

getMapValue

isInstance

and

or

not

bindVariable

bindKeyVariable

bindValueVariable

endsWith

matches

notMatches

startsWith

newSubquery

newPath

newPath

newLiteral

newTypeLiteral

getThis

getNull

getCurrentDate

getCurrentTime

getCurrentTimestamp

newParameter

newCollectionValuedParameter

newExtension

newAggregate

newArgumentList

newArgumentList

newUnboundVariable

newBoundVariable

cast

add

subtract

multiply

divide

mod

abs

indexOf

concat

stringLength

trim

sqrt

substring

toUpperCase

toLowerCase

avg

count

distinct

max

min

sum

any

all