src/javax/persistence/InheritanceType.java

/*******************************************************************************
 * 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;

/**
 * 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 
}