001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.el; 018 019/** 020 * 021 * <p>The implementation of the equals operator 022 * 023 * @author Nathan Abramson - Art Technology Group 024 * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: bayard $ 025 **/ 026 027public class EqualsOperator 028 extends EqualityOperator 029{ 030 //------------------------------------- 031 // Singleton 032 //------------------------------------- 033 034 public static final EqualsOperator SINGLETON = 035 new EqualsOperator (); 036 037 //------------------------------------- 038 /** 039 * 040 * Constructor 041 **/ 042 public EqualsOperator () 043 { 044 } 045 046 //------------------------------------- 047 // Expression methods 048 //------------------------------------- 049 /** 050 * 051 * Returns the symbol representing the operator 052 **/ 053 public String getOperatorSymbol () 054 { 055 return "=="; 056 } 057 058 //------------------------------------- 059 /** 060 * 061 * Applies the operator given the fact that the two elements are 062 * equal. 063 **/ 064 public boolean apply (boolean pAreEqual) 065 { 066 return pAreEqual; 067 } 068 069 //------------------------------------- 070}