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Java > Open Source Codes > org > apache > torque > engine > database > model > IDMethod


1 package org.apache.torque.engine.database.model;
2
3 /*
4  * Copyright 2001-2004 The Apache Software Foundation.
5  *
6  * Licensed under the Apache License, Version 2.0 (the "License");
7  * you may not use this file except in compliance with the License.
8  * You may obtain a copy of the License at
9  *
10  * http://www.apache.org/licenses/LICENSE-2.0
11  *
12  * Unless required by applicable law or agreed to in writing, software
13  * distributed under the License is distributed on an "AS IS" BASIS,
14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15  * See the License for the specific language governing permissions and
16  * limitations under the License.
17  */
18
19 /**
20  * Interface for various ID retrieval method types
21  * (i.e. auto-increment, sequence, ID broker, etc.).
22  *
23  * @author <a HREF="mailto:dlr@collab.net">Daniel Rall</a>
24  * @version $Id: IDMethod.java,v 1.3 2004/02/22 06:27:19 jmcnally Exp $
25  */
26 public interface IDMethod
27 {
28     /**
29      * Key generation via database-specific ID method
30      * (i.e. auto-increment for MySQL, sequence for Oracle, etc.).
31      */
32     String JavaDoc NATIVE = "native";
33
34     /**
35      * Key generation via auto-increment.
36      */
37 // String AUTO_INCREMENT = "autoincrement";
38
39     /**
40      * Key generation via sequences.
41      */
42 // String SEQUENCE = "sequence";
43
44     /**
45      * Key generation via the IDBroker table.
46      */
47     String JavaDoc ID_BROKER = "idbroker";
48
49     /**
50      * No RDBMS key generation (keys may be generated by the
51      * application).
52      */
53     String JavaDoc NO_ID_METHOD = "none";
54 }
55
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