alvinalexander.com | career | drupal | java | mac | mysql | perl | scala | uml | unix  

Hibernate example source code file (AbstractPredicateImpl.java)

This example Hibernate source code file (AbstractPredicateImpl.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Java - Hibernate tags/keywords

abstractpredicateimpl, abstractpredicateimpl, expressionimpl, expressionimpl, io, list, override, override, predicate, predicate, serializable, util

The Hibernate AbstractPredicateImpl.java source code

/*
 * 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
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.hibernate.ejb.criteria.predicate;
import java.io.Serializable;
import java.util.List;
import javax.persistence.criteria.Predicate;
import javax.persistence.criteria.Selection;
import org.hibernate.ejb.criteria.CriteriaBuilderImpl;
import org.hibernate.ejb.criteria.expression.ExpressionImpl;

/**
 * Basic template support for {@link Predicate} implementors providing
 * expression handling, negation and conjunction/disjunction handling.
 *
 * @author Steve Ebersole
 */
public abstract class AbstractPredicateImpl
		extends ExpressionImpl<Boolean>
		implements Predicate, Serializable {
	private boolean negated;

	protected AbstractPredicateImpl(CriteriaBuilderImpl criteriaBuilder) {
		super( criteriaBuilder, Boolean.class );
	}

	public boolean isNegated() {
		return negated;
	}

	public Predicate not() {
		negated = !negated;
		return this;
	}


	// Selection ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

	@Override
	public final boolean isCompoundSelection() {
		// Should always be false for predicates
		return super.isCompoundSelection();
	}

	@Override
	public final List<Selection getCompoundSelectionItems() {
		// Should never have sub selection items for predicates
		return super.getCompoundSelectionItems();
	}

}

Other Hibernate examples (source code examples)

Here is a short list of links related to this Hibernate AbstractPredicateImpl.java source code file:

... this post is sponsored by my books ...

#1 New Release!

FP Best Seller

 

new blog posts

 

Copyright 1998-2021 Alvin Alexander, alvinalexander.com
All Rights Reserved.

A percentage of advertising revenue from
pages under the /java/jwarehouse URI on this website is
paid back to open source projects.