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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 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 ID_BROKER = "idbroker";
48  
49      /***
50       * No RDBMS key generation (keys may be generated by the
51       * application).
52       */
53      String NO_ID_METHOD = "none";
54  }