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1   /**
2    * Copyright 2005-2015 The Kuali Foundation
3    *
4    * Licensed under the Educational Community 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.opensource.org/licenses/ecl2.php
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 org.kuali.rice.kew.plugin;
17  
18  /**
19   * Represents an entity which can be modified.  A Modifiable records it's state when
20   * it's created.  As long as the Modifiable remains in this state then invocations of
21   * isModified() should return false.  If this state changes in a way which makes this 
22   * Modifiable "dirty" then subsequent calls to isModified() should return true.
23   * 
24   * <p>It is up to the implementor of the Modifiable to determine the contract between
25   * the Modifiable and the entities interested in it's modified status.  This could
26   * include interested entities taking action on the Modifiable once it has become
27   * modified which result in it's modified status being reset.  Another possibility is
28   * for a Modifiable to be discarded once it has been modified.
29   * 
30   * @author Kuali Rice Team (rice.collab@kuali.org)
31   */
32  public interface Modifiable {
33  
34      boolean isModified();
35      
36  }