org.hibernate.jpa.criteria.predicate

Class ExistsPredicate

java.lang.Object

org.hibernate.jpa.criteria.AbstractNode

org.hibernate.jpa.criteria.expression.AbstractTupleElement<X>

org.hibernate.jpa.criteria.expression.SelectionImpl<T>

org.hibernate.jpa.criteria.expression.ExpressionImpl<Boolean>

org.hibernate.jpa.criteria.predicate.AbstractPredicateImpl

org.hibernate.jpa.criteria.predicate.AbstractSimplePredicate

org.hibernate.jpa.criteria.predicate.ExistsPredicate

All Implemented Interfaces:

Serializable, Expression<Boolean>, Predicate, Selection<Boolean>, TupleElement<Boolean>, ExpressionImplementor<Boolean>, ParameterContainer, PredicateImplementor, Renderable, SelectionImplementor<Boolean>, TupleElementImplementor<Boolean>

public class ExistsPredicate
extends AbstractSimplePredicate
implements Serializable

Models an EXISTS() predicate

Author:

Steve Ebersole

See Also:

Serialized Form

Nested Class Summary

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

Predicate.BooleanOperator

Nested classes/interfaces inherited from interface org.hibernate.jpa.criteria.ParameterContainer

ParameterContainer.Helper

Constructor Summary

Constructors

Constructor and Description
ExistsPredicate(CriteriaBuilderImpl criteriaBuilder, Subquery<?> subquery)

Method Summary

Modifier and Type	Method and Description
Subquery<?>	getSubquery()
void	registerParameters(ParameterRegistry registry) Register any parameters contained within this query component with the given registry.
String	render(boolean isNegated, RenderingContext renderingContext) Form of Renderable.render(org.hibernate.jpa.criteria.compile.RenderingContext) used when the predicate is wrapped in a negated wrapper.

Methods inherited from class org.hibernate.jpa.criteria.predicate.AbstractSimplePredicate

getExpressions, getOperator, isJunction, render, renderProjection

Methods inherited from class org.hibernate.jpa.criteria.predicate.AbstractPredicateImpl

getCompoundSelectionItems, isCompoundSelection, isNegated, not

Methods inherited from class org.hibernate.jpa.criteria.expression.ExpressionImpl

as, asBigDecimal, asBigInteger, asDouble, asFloat, asInteger, asLong, asString, in, in, in, in, isNotNull, isNull

Methods inherited from class org.hibernate.jpa.criteria.expression.SelectionImpl

alias, getValueHandlers

Methods inherited from class org.hibernate.jpa.criteria.expression.AbstractTupleElement

forceConversion, getAlias, getJavaType, getValueHandler, resetJavaType, setAlias

Methods inherited from class org.hibernate.jpa.criteria.AbstractNode

criteriaBuilder

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.hibernate.jpa.criteria.predicate.PredicateImplementor

criteriaBuilder

Methods inherited from interface javax.persistence.criteria.Expression

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

Methods inherited from interface javax.persistence.criteria.Selection

alias

Methods inherited from interface javax.persistence.TupleElement

getAlias, getJavaType

Methods inherited from interface org.hibernate.jpa.criteria.SelectionImplementor

getValueHandlers

Methods inherited from interface org.hibernate.jpa.criteria.TupleElementImplementor

getValueHandler

Constructor Detail

ExistsPredicate

public ExistsPredicate(CriteriaBuilderImpl criteriaBuilder,
                       Subquery<?> subquery)

Method Detail

getSubquery

public Subquery<?> getSubquery()

registerParameters

public void registerParameters(ParameterRegistry registry)

Description copied from interface: ParameterContainer

Register any parameters contained within this query component with the given registry.

Specified by:

registerParameters in interface ParameterContainer

Parameters:

registry - The parameter registry with which to register.

render

public String render(boolean isNegated,
                     RenderingContext renderingContext)

Description copied from interface: PredicateImplementor

Form of Renderable.render(org.hibernate.jpa.criteria.compile.RenderingContext) used when the predicate is wrapped in a negated wrapper. Allows passing down the negation flag.

Note that this form is no-op in compound (junction) predicates. The reason being that compound predicates are more complex and the negation is applied during its creation.

Specified by:

render in interface PredicateImplementor

Parameters:

isNegated - Should the predicate be negated.

renderingContext - The context for rendering

Returns:

The rendered predicate fragment.