/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2009 by Red Hat Inc and/or its affiliates or by
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 * This program is distributed in the hope that it will be useful,
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package org.hibernate.jpa.criteria.predicate;

import java.io.Serializable;
import javax.persistence.criteria.Expression;
import javax.persistence.criteria.Predicate;

import org.hibernate.jpa.criteria.CriteriaBuilderImpl;
import org.hibernate.jpa.criteria.ParameterRegistry;
import org.hibernate.jpa.criteria.Renderable;
import org.hibernate.jpa.criteria.compile.RenderingContext;

Defines a Predicate used to wrap an Expression<Boolean>.
Author:Steve Ebersole
/** * Defines a {@link Predicate} used to wrap an {@link Expression Expression&lt;Boolean&gt;}. * * @author Steve Ebersole */
public class BooleanExpressionPredicate extends AbstractSimplePredicate implements Serializable { private final Expression<Boolean> expression; public BooleanExpressionPredicate(CriteriaBuilderImpl criteriaBuilder, Expression<Boolean> expression) { super( criteriaBuilder ); this.expression = expression; }
Get the boolean expression defining the predicate.
Returns:The underlying boolean expression.
/** * Get the boolean expression defining the predicate. * * @return The underlying boolean expression. */
public Expression<Boolean> getExpression() { return expression; } @Override public void registerParameters(ParameterRegistry registry) { Helper.possibleParameter(expression, registry); } @Override public String render(boolean isNegated, RenderingContext renderingContext) { return ( (Renderable) getExpression() ).render( renderingContext ); } }