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55
56 package org.apache.commons.el;
57
58 /**
59  *
60  * <p>The implementation of the not equals operator
61  *
62  * @author Nathan Abramson - Art Technology Group
63  * @version $Change: 181177 $$DateTime: 2001/06/26 08:45:09 $$Author: luehe $
64  **/
65
66 public class NotEqualsOperator
67   extends EqualityOperator
68 {
69   //-------------------------------------
70 // Singleton
71 //-------------------------------------
72
73   public static final NotEqualsOperator SINGLETON =
74     new NotEqualsOperator ();
75
76   //-------------------------------------
77 /**
78    *
79    * Constructor
80    **/
81   public NotEqualsOperator ()
82   {
83   }
84
85   //-------------------------------------
86 // Expression methods
87 //-------------------------------------
88 /**
89    *
90    * Returns the symbol representing the operator
91    **/
92   public String JavaDoc getOperatorSymbol ()
93   {
94     return "!=";
95   }
96
97   //-------------------------------------
98 /**
99    *
100    * Applies the operator given the fact that the two elements are
101    * equal.
102    **/
103   public boolean apply (boolean pAreEqual,
104             Logger pLogger)
105   {
106     return !pAreEqual;
107   }
108   
109   //-------------------------------------
110 }
111
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