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• Fetch.java

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jakarta.persistence.criteria.Fetch Maven / Gradle / Ivy

/*
 * Copyright (c) 2008, 2020 Oracle and/or its affiliates. All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v. 2.0 which is available at
 * http://www.eclipse.org/legal/epl-2.0,
 * or the Eclipse Distribution License v. 1.0 which is available at
 * http://www.eclipse.org/org/documents/edl-v10.php.
 *
 * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause
 */

// Contributors:
//     Linda DeMichiel - 2.1
//     Linda DeMichiel - 2.0

package jakarta.persistence.criteria;

import jakarta.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 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();
}