Coverage Report

Coverage Report - org.jaxen.expr.IdentitySet

Classes in this File

Line Coverage

Branch Coverage

Complexity

IdentitySet

100%

8/8

N/A

IdentitySet$IdentityWrapper

100%

6/6

100%

1/1

 /*
  $Id$
 
  Copyright 2005 Elliotte Rusty Harold. All Rights Reserved.
  
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are
 met:
 
   * Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
 
   * Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
 
   * Neither the name of the Jaxen Project nor the names of its
     contributors may be used to endorse or promote products derived 
     from this software without specific prior written permission.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
 TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
 PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
 OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
  */
 package org.jaxen.expr;
 
 import java.util.HashSet;
 
 
 /**
  * <p>
  *  This is a set that uses identity rather than equality semantics.
  * </p>
  * 
  * @author Elliotte Rusty Harold
  *
  */
 final class IdentitySet {
 
     private HashSet contents = new HashSet();
     
     IdentitySet() {
         super();
     }
 
     void add(Object object) {
         IdentityWrapper wrapper = new IdentityWrapper(object);
         contents.add(wrapper);
     }
 
     public boolean contains(Object object) {
         IdentityWrapper wrapper = new IdentityWrapper(object);
         return contents.contains(wrapper);
     }
     
     private static class IdentityWrapper {
 
         private Object object;
         
         IdentityWrapper(Object object) {
             this.object = object;
         }
         
         public boolean equals(Object o) {
             IdentityWrapper w = (IdentityWrapper) o;
             return object == w.object;
         }
 
         public int hashCode() {
             return System.identityHashCode(object);
         }
 
     }
 
 
 }

1		/*
2		$Id$
3
4		Copyright 2005 Elliotte Rusty Harold. All Rights Reserved.
5
6		Redistribution and use in source and binary forms, with or without
7		modification, are permitted provided that the following conditions are
8		met:
9
10		* Redistributions of source code must retain the above copyright
11		notice, this list of conditions and the following disclaimer.
12
13		* Redistributions in binary form must reproduce the above copyright
14		notice, this list of conditions and the following disclaimer in the
15		documentation and/or other materials provided with the distribution.
16
17		* Neither the name of the Jaxen Project nor the names of its
18		contributors may be used to endorse or promote products derived
19		from this software without specific prior written permission.
20
21		THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
22		IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
23		TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
24		PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
25		OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26		EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27		PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28		PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29		LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30		NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31		SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32
33		*/
34		package org.jaxen.expr;
35
36		import java.util.HashSet;
37
38
39		/**
40		* <p>
41		* This is a set that uses identity rather than equality semantics.
42		* </p>
43		*
44		* @author Elliotte Rusty Harold
45		*
46		*/
47		final class IdentitySet {
48
49	1542	private HashSet contents = new HashSet();
50
51		IdentitySet() {
52	1542	super();
53	1542	}
54
55		void add(Object object) {
56	40960	IdentityWrapper wrapper = new IdentityWrapper(object);
57	40960	contents.add(wrapper);
58	40960	}
59
60		public boolean contains(Object object) {
61	42690	IdentityWrapper wrapper = new IdentityWrapper(object);
62	42690	return contents.contains(wrapper);
63		}
64
65		private static class IdentityWrapper {
66
67		private Object object;
68
69	83650	IdentityWrapper(Object object) {
70	83650	this.object = object;
71	83650	}
72
73		public boolean equals(Object o) {
74	34	IdentityWrapper w = (IdentityWrapper) o;
75	34	return object == w.object;
76		}
77
78		public int hashCode() {
79	83650	return System.identityHashCode(object);
80		}
81
82		}
83
84
85		}