01: /*
02: * Copyright (c) 2001-2007, Jean Tessier
03: * All rights reserved.
04: *
05: * Redistribution and use in source and binary forms, with or without
06: * modification, are permitted provided that the following conditions
07: * are met:
08: *
09: * * 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 com.jeantessier.classreader.*;
36:
37: /**
38: * Documents the difference, if any, for a given field.
39: * All behavior is handled by superclasses.
40: */
41: public class FieldDifferences extends FeatureDifferences {
42: private boolean constantValueDifference = false;
43:
44: /**
45: * Only the DifferencesFactory can create instances of this class.
46: */
47: FieldDifferences(String name, Field_info oldField,
48: Field_info newField) {
49: super (name, oldField, newField);
50: }
51:
52: public boolean isConstantValueDifference() {
53: return constantValueDifference;
54: }
55:
56: /**
57: * Only the DifferencesFactory can set this flag
58: */
59: void setConstantValueDifference(boolean constantValueDifference) {
60: this .constantValueDifference = constantValueDifference;
61: }
62:
63: public boolean isModified() {
64: return isConstantValueDifference() || super .isModified();
65: }
66:
67: public void accept(Visitor visitor) {
68: visitor.visitFieldDifferences(this);
69: }
70: }
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