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1   package org.apache.turbine.services.intake.validator;
2   
3   /*
4    * Licensed to the Apache Software Foundation (ASF) under one
5    * or more contributor license agreements.  See the NOTICE file
6    * distributed with this work for additional information
7    * regarding copyright ownership.  The ASF licenses this file
8    * to you under the Apache License, Version 2.0 (the
9    * "License"); you may not use this file except in compliance
10   * with the License.  You may obtain a copy of the License at
11   *
12   *   http://www.apache.org/licenses/LICENSE-2.0
13   *
14   * Unless required by applicable law or agreed to in writing,
15   * software distributed under the License is distributed on an
16   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17   * KIND, either express or implied.  See the License for the
18   * specific language governing permissions and limitations
19   * under the License.
20   */
21  
22  /***
23   * Interface to define the compare operation betwen two field values
24   *
25   * @author <a href="mailto:tv@apache.org">Thomas Vandahl</a>
26   * @version $Id: DateStringValidator.java 534527 2007-05-02 16:10:59Z tv $
27   */
28  public interface CompareCallback
29  {
30      /***
31       * Compare the given values using the compare operation provided
32       * 
33       * @param compare type of compare operation
34       * @param thisValue value of this field
35       * @param refValue value of the reference field
36       * 
37       * @return the result of the comparison
38       */
39      public boolean compareValues(int compare, Object thisValue, Object refValue)
40          throws ClassCastException;
41  }