/*
 * Hibernate, Relational Persistence for Idiomatic Java
 *
 * Copyright (c) 2009 by Red Hat Inc and/or its affiliates or by
 * third-party contributors as indicated by either @author tags or express
 * copyright attribution statements applied by the authors.  All
 * third-party contributions are distributed under license by Red Hat Inc.
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
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package org.hibernate.jpa.criteria.predicate;

import java.io.Serializable;
import java.util.Collection;
import javax.persistence.criteria.Expression;

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;
import org.hibernate.jpa.criteria.expression.LiteralExpression;
import org.hibernate.jpa.criteria.path.PluralAttributePath;

Models an [NOT] MEMBER OF restriction
Author:Steve Ebersole
/** * Models an <tt>[NOT] MEMBER OF</tt> restriction * * @author Steve Ebersole */
public class MemberOfPredicate<E, C extends Collection<E>> extends AbstractSimplePredicate implements Serializable { private final Expression<E> elementExpression; private final PluralAttributePath<C> collectionPath; public MemberOfPredicate( CriteriaBuilderImpl criteriaBuilder, Expression<E> elementExpression, PluralAttributePath<C> collectionPath) { super( criteriaBuilder ); this.elementExpression = elementExpression; this.collectionPath = collectionPath; } public MemberOfPredicate( CriteriaBuilderImpl criteriaBuilder, E element, PluralAttributePath<C> collectionPath) { this( criteriaBuilder, new LiteralExpression<E>( criteriaBuilder, element ), collectionPath ); } public PluralAttributePath<C> getCollectionPath() { return collectionPath; } public Expression<E> getElementExpression() { return elementExpression; } @Override public void registerParameters(ParameterRegistry registry) { Helper.possibleParameter( getCollectionPath(), registry ); Helper.possibleParameter( getElementExpression(), registry ); } @Override public String render(boolean isNegated, RenderingContext renderingContext) { return ( (Renderable) elementExpression ).render( renderingContext ) + ( isNegated ? " not" : "" ) + " member of " + getCollectionPath().render( renderingContext ); } }