001: /*
002: * Copyright (c) 2001-2007, Jean Tessier
003: * All rights reserved.
004: *
005: * Redistribution and use in source and binary forms, with or without
006: * modification, are permitted provided that the following conditions
007: * are met:
008: *
009: * * Redistributions of source code must retain the above copyright
010: * notice, this list of conditions and the following disclaimer.
011: *
012: * * Redistributions in binary form must reproduce the above copyright
013: * notice, this list of conditions and the following disclaimer in the
014: * documentation and/or other materials provided with the distribution.
015: *
016: * * Neither the name of Jean Tessier nor the names of his contributors
017: * may be used to endorse or promote products derived from this software
018: * without specific prior written permission.
019: *
020: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
021: * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
022: * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
023: * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR
024: * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
025: * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
026: * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
027: * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
028: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
029: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
030: * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
031: */
032:
033: package com.jeantessier.diff;
034:
035: import org.apache.log4j.*;
036:
037: import com.jeantessier.classreader.*;
038:
039: /**
040: * Documents the difference, if any, for a given feature
041: * (field, constructor, or method). Its subclasses only
042: * differ in which Visitor callback they invoke.
043: *
044: * @see Visitor
045: */
046: public abstract class FeatureDifferences extends RemovableDifferences {
047: private Feature_info oldFeature;
048: private Feature_info newFeature;
049:
050: private boolean inherited = false;
051:
052: /**
053: * Only the DifferencesFactory can create instances of this class.
054: */
055: protected FeatureDifferences(String name, Feature_info oldFeature,
056: Feature_info newFeature) {
057: super (name);
058:
059: setOldFeature(oldFeature);
060: setNewFeature(newFeature);
061:
062: if (oldFeature != null) {
063: setOldDeclaration(oldFeature.getDeclaration());
064: }
065:
066: if (newFeature != null) {
067: setNewDeclaration(newFeature.getDeclaration());
068: }
069:
070: if (isModified()) {
071: Logger.getLogger(getClass()).debug(
072: getName() + " declaration has been modified.");
073: } else {
074: Logger.getLogger(getClass()).debug(
075: getName() + " declaration has not been modified.");
076: }
077: }
078:
079: public Feature_info getOldFeature() {
080: return oldFeature;
081: }
082:
083: protected void setOldFeature(Feature_info oldFeature) {
084: this .oldFeature = oldFeature;
085: }
086:
087: public Feature_info getNewFeature() {
088: return newFeature;
089: }
090:
091: protected void setNewFeature(Feature_info newFeature) {
092: this .newFeature = newFeature;
093: }
094:
095: public boolean isInherited() {
096: return inherited;
097: }
098:
099: public void setInherited(boolean inherited) {
100: this.inherited = inherited;
101: }
102: }
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