org.apache.openjpa.persistence.criteria
Class Expressions.BinaryLogicalExpression

java.lang.Object
  org.apache.openjpa.persistence.criteria.SelectionImpl<X>
      org.apache.openjpa.persistence.criteria.ExpressionImpl<Boolean>
          org.apache.openjpa.persistence.criteria.PredicateImpl
              org.apache.openjpa.persistence.criteria.Expressions.BinaryLogicalExpression

All Implemented Interfaces:

Expression<Boolean>, Predicate, Selection<Boolean>, TupleElement<Boolean>, CriteriaExpression

Direct Known Subclasses:

Expressions.Equal, Expressions.GreaterThan, Expressions.GreaterThanEqual, Expressions.LessThan, Expressions.LessThanEqual, Expressions.NotEqual

Enclosing class:

Expressions

public abstract static class Expressions.BinaryLogicalExpression
extends PredicateImpl

Binary Logical Expression applies a function on a pair of input Expression to generate a Predicate i.e. an expression whose resultant type is Boolean.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.openjpa.persistence.criteria.PredicateImpl

PredicateImpl.And, PredicateImpl.Or

Nested classes/interfaces inherited from interface javax.persistence.criteria.Predicate

Predicate.BooleanOperator

Field Summary

protected ExpressionImpl<?>	e1
protected ExpressionImpl<?>	e2

Fields inherited from class org.apache.openjpa.persistence.criteria.PredicateImpl

_exps, FALSE, TRUE

Constructor Summary

Expressions.BinaryLogicalExpression(Expression<?> x, Expression<?> y)

Method Summary

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

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

add, asValue, getExpressions, getOperator, isEmpty, isNegated, markNegated, not, toKernelExpression, toValue

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

as, in, in, in, in, isNotNull, isNull

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

alias, asProjection, assertValidName, 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.Expression

as, in, in, in, in, isNotNull, isNull

Methods inherited from interface javax.persistence.criteria.Selection

alias, getCompoundSelectionItems, isCompoundSelection

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Field Detail

e1

protected final ExpressionImpl<?> e1

e2

protected final ExpressionImpl<?> e2

Constructor Detail

Expressions.BinaryLogicalExpression

public Expressions.BinaryLogicalExpression(Expression<?> x,
                                           Expression<?> y)

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 PredicateImpl

Parameters:

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