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The Java Persistence API (JPA) : a standard interface-based Java model abstraction of persistence, developed by the JCP.

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/*
 * Copyright (c) 2008, 2009, 2011 Oracle, Inc. 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.
 */
package javax.persistence.criteria;

import javax.persistence.metamodel.Attribute;

/**
 * Represents a join-fetched association or attribute.
 * @param  the source type of the fetch
 * @param  the target type of the fetch
 * @since Java Persistence 2.0
 */
public interface Fetch extends FetchParent
{
    /**
     * Return the metamodel attribute corresponding to the fetch join.
     * @return metamodel attribute for the join
     */
    Attribute getAttribute();

    /**
     * Return the parent of the fetched item.
     * @return fetch parent
     */
    FetchParent getParent();

    /**
     * Return the join type used in the fetch join.
     * @return join type
     */
    JoinType getJoinType();
}