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Hibernate's core ORM functionality
/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
* See the lgpl.txt file in the root directory or .
*/
package org.hibernate.query.criteria.internal.predicate;
import java.io.Serializable;
import javax.persistence.criteria.Expression;
import org.hibernate.query.criteria.internal.CriteriaBuilderImpl;
import org.hibernate.query.criteria.internal.ParameterRegistry;
import org.hibernate.query.criteria.internal.Renderable;
import org.hibernate.query.criteria.internal.compile.RenderingContext;
/**
* Defines a {@link javax.persistence.criteria.Predicate} used to wrap an {@link Expression Expression<Boolean>}.
*
* @author Steve Ebersole
*/
public class BooleanExpressionPredicate
extends AbstractSimplePredicate
implements Serializable {
private final Expression expression;
public BooleanExpressionPredicate(CriteriaBuilderImpl criteriaBuilder, Expression expression) {
super( criteriaBuilder );
this.expression = expression;
}
/**
* Get the boolean expression defining the predicate.
*
* @return The underlying boolean expression.
*/
public Expression 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 );
}
}