org.apache.openjpa.persistence.query
Class ExistsExpression

java.lang.Object
  org.apache.openjpa.persistence.query.AbstractVisitable
      org.apache.openjpa.persistence.query.UnaryExpressionPredicate
          org.apache.openjpa.persistence.query.ExistsExpression

All Implemented Interfaces:

Serializable, Predicate, Visitable

public class ExistsExpression
extends UnaryExpressionPredicate

Denotes EXISTS(SubQuery) Expression.

Author:

Pinaki Poddar

See Also:

Serialized Form

Field Summary

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

_e, _op

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

CLOSE_BRACE, COMMA, EMPTY, OPEN_BRACE, SPACE

Constructor Summary

ExistsExpression(QueryDefinitionImpl op)

Method Summary

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

and, asExpression, getOperand, getOperator, not, or

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

asJoinable, asProjection, getAliasHint

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.Visitable

asJoinable, asProjection, getAliasHint

Constructor Detail

ExistsExpression

public ExistsExpression(QueryDefinitionImpl op)