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Java > Open Source Codes > javax > persistence > InheritanceType


1 /*
2  * The contents of this file are subject to the terms
3  * of the Common Development and Distribution License
4  * (the License). You may not use this file except in
5  * compliance with the License.
6  *
7  * You can obtain a copy of the license at
8  * https://glassfish.dev.java.net/public/CDDLv1.0.html or
9  * glassfish/bootstrap/legal/CDDLv1.0.txt.
10  * See the License for the specific language governing
11  * permissions and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL
14  * Header Notice in each file and include the License file
15  * at glassfish/bootstrap/legal/CDDLv1.0.txt.
16  * If applicable, add the following below the CDDL Header,
17  * with the fields enclosed by brackets [] replaced by
18  * you own identifying information:
19  * "Portions Copyrighted [year] [name of copyright owner]"
20  *
21  * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
22  */
23 package javax.persistence;
24
25 /**
26  * Defines inheritance strategy options.
27  *
28  * @since Java Persistence 1.0
29  */
30 public enum InheritanceType {
31
32     /** A single table per class hierarchy */
33     SINGLE_TABLE,
34
35     /** A table per concrete entity class */
36     TABLE_PER_CLASS,
37
38     /**
39      * A strategy in which fields that are specific to a
40      * subclass are mapped to a separate table than the fields
41      * that are common to the parent class, and a join is
42      * performed to instantiate the subclass.
43      */
44     JOINED
45 }
46
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