src/javax/persistence/criteria/Root.java

/*******************************************************************************
 * Copyright (c) 2008 - 2012 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();
}