src/javax/persistence/InheritanceType.java

/*
 * Copyright (c) 2008, 2018 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 - Java Persistence 2.1
//     Linda DeMichiel - Java Persistence 2.0

package javax.persistence;

/**
 * Defines inheritance strategy options.
 *
 * @since Java Persistence 1.0
 */
public enum InheritanceType { 

    /** A single table per class hierarchy. */
    SINGLE_TABLE, 

    /** A table per concrete entity class. */
    TABLE_PER_CLASS, 

    /** 
     * A strategy in which fields that are specific to a 
     * subclass are mapped to a separate table than the fields 
     * that are common to the parent class, and a join is 
     * performed to instantiate the subclass.
     */
    JOINED 
}