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1   /*
2    * Copyright 2004-2009 the original author or authors.
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  
17  package org.springmodules.validation.valang.predicates;
18  
19  import org.springmodules.validation.valang.functions.Function;
20  
21  /**
22   * Tests if a value is not equal to another.
23   *
24   * @author David Winterfeldt
25   */
26  public class NotEqualsTestPredicate extends EqualsTestPredicate {
27  
28      /**
29       * <p>Constructor taking two functions and an operator.
30       *
31       * @param leftFunction the left function
32       * @param operator the operator.
33       */
34      public NotEqualsTestPredicate(Function leftFunction, Operator operator, Function rightFunction, int line, int column) {
35          super(leftFunction, operator, rightFunction, line, column);
36      }
37  
38  
39      /**
40       * <p>The evaluate method takes the result of both functions and tests with the operator.
41       *
42       * @param   target      The target bean.
43       * @return  boolean      Whether or not the test passed.
44       */
45      public boolean evaluate(Object target) {
46          return !super.evaluate(target);
47      }
48  
49  }