01: /*
02: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
03: *
04: * Copyright 1997-2007 Sun Microsystems, Inc. All rights reserved.
05: *
06: * Portions Copyright Apache Software Foundation.
07: *
08: * The contents of this file are subject to the terms of either the GNU
09: * General Public License Version 2 only ("GPL") or the Common Development
10: * and Distribution License("CDDL") (collectively, the "License"). You
11: * may not use this file except in compliance with the License. You can obtain
12: * a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
13: * or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
14: * language governing permissions and limitations under the License.
15: *
16: * When distributing the software, include this License Header Notice in each
17: * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
18: * Sun designates this particular file as subject to the "Classpath" exception
19: * as provided by Sun in the GPL Version 2 section of the License file that
20: * accompanied this code. If applicable, add the following below the License
21: * Header, with the fields enclosed by brackets [] replaced by your own
22: * identifying information: "Portions Copyrighted [year]
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29: * elects to include this software in this distribution under the [CDDL or GPL
30: * Version 2] license." If you don't indicate a single choice of license, a
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37: */
38:
39: package org.apache.taglibs.standard.lang.jstl;
40:
41: /**
42: *
43: * <p>The implementation of the not equals operator
44: *
45: * @author Nathan Abramson - Art Technology Group
46: * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: tcfujii $
47: **/
48:
49: public class NotEqualsOperator extends EqualityOperator {
50: //-------------------------------------
51: // Singleton
52: //-------------------------------------
53:
54: public static final NotEqualsOperator SINGLETON = new NotEqualsOperator();
55:
56: //-------------------------------------
57: /**
58: *
59: * Constructor
60: **/
61: public NotEqualsOperator() {
62: }
63:
64: //-------------------------------------
65: // Expression methods
66: //-------------------------------------
67: /**
68: *
69: * Returns the symbol representing the operator
70: **/
71: public String getOperatorSymbol() {
72: return "!=";
73: }
74:
75: //-------------------------------------
76: /**
77: *
78: * Applies the operator given the fact that the two elements are
79: * equal.
80: **/
81: public boolean apply(boolean pAreEqual, Logger pLogger) {
82: return !pAreEqual;
83: }
84:
85: //-------------------------------------
86: }
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