org.apache.openjpa.persistence.criteria
Class Expressions.FunctionalExpression<X>

java.lang.Object
  org.apache.openjpa.persistence.criteria.SelectionImpl<X>
      org.apache.openjpa.persistence.criteria.ExpressionImpl<X>
          org.apache.openjpa.persistence.criteria.Expressions.FunctionalExpression<X>

Type Parameters:

X - the type of the resultant expression

All Implemented Interfaces:

Expression<X>, Selection<X>, TupleElement<X>, CriteriaExpression

Direct Known Subclasses:

Expressions.DatabaseFunction

Enclosing class:

Expressions

public abstract static class Expressions.FunctionalExpression<X>
extends ExpressionImpl<X>

Functional Expression applies a function on a list of input Expressions.

Field Summary

protected ExpressionImpl<?>[]

args

Constructor Summary

Expressions.FunctionalExpression(Class<X> t, Expression<?>... args)
Supply the resultant type and list of input operand expressions.

Method Summary

void	acceptVisit(CriteriaExpressionVisitor visitor) Accept visit from the given visitor.

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

as, in, in, in, in, isNotNull, isNull, toKernelExpression, toValue

Methods inherited from class org.apache.openjpa.persistence.criteria.SelectionImpl

alias, asProjection, assertValidName, asValue, asVariable, getAlias, getCompoundSelectionItems, getJavaType, isAliased, isAutoAliased, isCompoundSelection, setAutoAlias

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface javax.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Field Detail

args

protected final ExpressionImpl<?>[] args

Constructor Detail

Expressions.FunctionalExpression

public Expressions.FunctionalExpression(Class<X> t,
                                        Expression<?>... args)

Supply the resultant type and list of input operand expressions.

Method Detail

acceptVisit

public void acceptVisit(CriteriaExpressionVisitor visitor)

Description copied from interface: CriteriaExpression

Accept visit from the given visitor. The receiver is responsible to propagate the visitor to the constituent sub-nodes if any.

Specified by:

acceptVisit in interface CriteriaExpression

Overrides:

acceptVisit in class SelectionImpl<X>

Parameters:

visitor - a processor to walk the nodes of a tree.