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Java > Open Source Codes > com > jeantessier > diff > FeatureDifferences


1 /*
2  * Copyright (c) 2001-2005, Jean Tessier
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  *
9  * * Redistributions of source code must retain the above copyright
10  * notice, this list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright
13  * notice, this list of conditions and the following disclaimer in the
14  * documentation and/or other materials provided with the distribution.
15  *
16  * * Neither the name of Jean Tessier nor the names of his contributors
17  * may be used to endorse or promote products derived from this software
18  * without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
24  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
26  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
27  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
28  * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
29  * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
30  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 package com.jeantessier.diff;
34
35 import org.apache.log4j.*;
36
37 import com.jeantessier.classreader.*;
38
39 /**
40  * Documents the difference, if any, for a given feature
41  * (field, constructor, or method). Its subclasses only
42  * differ in which Visitor callback they invoke.
43  *
44  * @see Visitor
45  */
46 public abstract class FeatureDifferences extends RemovableDifferences {
47     private Feature_info oldFeature;
48     private Feature_info newFeature;
49     
50     private boolean inherited = false;
51
52     /**
53      * Only the DifferencesFactory can create instances of this class.
54      */
55     protected FeatureDifferences(String JavaDoc name, Feature_info oldFeature, Feature_info newFeature) {
56         super(name);
57
58         setOldFeature(oldFeature);
59         setNewFeature(newFeature);
60                     
61         if (oldFeature != null) {
62             setOldDeclaration(oldFeature.getDeclaration());
63         }
64         
65         if (newFeature != null) {
66             setNewDeclaration(newFeature.getDeclaration());
67         }
68     
69         if (isModified()) {
70             Logger.getLogger(getClass()).debug(getName() + " declaration has been modified.");
71         } else {
72             Logger.getLogger(getClass()).debug(getName() + " declaration has not been modified.");
73         }
74     }
75
76     public Feature_info getOldFeature() {
77         return oldFeature;
78     }
79
80     protected void setOldFeature(Feature_info oldFeature) {
81         this.oldFeature = oldFeature;
82     }
83
84     public Feature_info getNewFeature() {
85         return newFeature;
86     }
87
88     protected void setNewFeature(Feature_info newFeature) {
89         this.newFeature = newFeature;
90     }
91
92     public boolean isInherited() {
93         return inherited;
94     }
95
96     public void setInherited(boolean inherited) {
97         this.inherited = inherited;
98     }
99 }
100
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