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1   /*
2    * Copyright 2004 Charles Blaxland
3    *
4    * Licensed under the Apache License, Version 2.0 (the "License");
5    * you may not use this file except in compliance with the License.
6    * You may obtain a copy of the License at
7    *
8    *     http://www.apache.org/licenses/LICENSE-2.0
9    *
10   * Unless required by applicable law or agreed to in writing, software
11   * distributed under the License is distributed on an "AS IS" BASIS,
12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   * See the License for the specific language governing permissions and
14   * limitations under the License.
15   */
16  package mnemosyne.core;
17  
18  
19  /***
20   * The version class is an identifier for a persistent graph version
21   * in mnemosyne.  Version implementations should be ordered (comparable), and
22   * should have a large enough capacity to not repeat over the transient lifetime of
23   * the system.
24   *
25   * @version $Id: Version.java,v 1.1.1.1 2004/08/07 06:41:14 charlesblaxland Exp $
26   */
27  public interface Version extends Comparable
28  {
29      /***
30       * Gets the successor of this Version object.
31       *
32       * @return
33       */
34      public Version getNext();
35  }