1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.el;
18
19 import javax.servlet.jsp.el.ELException;
20
21 /**
22 *
23 * <p>This is the superclass for all equality operators (==, !=)
24 *
25 * @author Nathan Abramson - Art Technology Group
26 * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: bayard $
27 **/
28
29 public abstract class EqualityOperator
30 extends BinaryOperator
31 {
32 //-------------------------------------
33 /**
34 *
35 * Applies the operator to the given value
36 **/
37 public Object apply (Object pLeft,
38 Object pRight)
39 throws ELException
40 {
41 return Coercions.applyEqualityOperator (pLeft, pRight, this);
42 }
43
44 //-------------------------------------
45 /**
46 *
47 * Applies the operator given the fact that the two elements are
48 * equal.
49 **/
50 public abstract boolean apply (boolean pAreEqual);
51
52 //-------------------------------------
53 }