Java tutorial
/******************************************************************************* * Copyright (c) 2008 - 2013 Oracle Corporation. All rights reserved. * * This program and the accompanying materials are made available under the * terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0 * which accompanies this distribution. * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html * and the Eclipse Distribution License is available at * http://www.eclipse.org/org/documents/edl-v10.php. * * Contributors: * Linda DeMichiel - Java Persistence 2.1 * Linda DeMichiel - Java Persistence 2.0 * ******************************************************************************/ package javax.persistence.criteria; import javax.persistence.metamodel.EntityType; /** * A root type in the from clause. * Query roots always reference entities. * * @param <X> the entity type referenced by the root * * @since Java Persistence 2.0 */ public interface Root<X> extends From<X, X> { /** * Return the metamodel entity corresponding to the root. * @return metamodel entity corresponding to the root */ EntityType<X> getModel(); }