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Java > Open Source Codes > org > apache > commons > jrcs > diff > DeleteDelta


1 /*
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3  *
4  * The Apache Software License, Version 1.1
5  *
6  * Copyright (c) 1999-2003 The Apache Software Foundation.
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10  * modification, are permitted provided that the following conditions
11  * are met:
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13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
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17  * notice, this list of conditions and the following disclaimer in
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19  * distribution.
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22  * any, must include the following acknowledgement:
23  * "This product includes software developed by the
24  * Apache Software Foundation (http://www.apache.org/)."
25  * Alternately, this acknowledgement may appear in the software itself,
26  * if and wherever such third-party acknowledgements normally appear.
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28  * 4. The names "The Jakarta Project", "Commons", and "Apache Software
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30  * from this software without prior written permission. For written
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54  * <http://www.apache.org/>.
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57
58 package org.apache.commons.jrcs.diff;
59
60 import java.util.List JavaDoc;
61
62 /**
63  * Holds a delete-delta between to revisions of a text.
64  *
65  * @version $Id: DeleteDelta.java,v 1.1 2004/10/06 09:47:23 ludovicc Exp $
66  * @author <a HREF="mailto:juanco@suigeneris.org">Juanco Anez</a>
67  * @see Delta
68  * @see Diff
69  * @see Chunk
70  */
71 public class DeleteDelta
72     extends Delta
73 {
74
75     DeleteDelta()
76     {
77         super();
78     }
79
80     public DeleteDelta(Chunk orig)
81     {
82         init(orig, null);
83     }
84
85     public void verify(List JavaDoc target)
86         throws PatchFailedException
87     {
88         if (!original.verify(target))
89         {
90             throw new PatchFailedException();
91         }
92     }
93
94     public void applyTo(List JavaDoc target)
95     {
96         original.applyDelete(target);
97     }
98
99     public void toString(StringBuffer JavaDoc s)
100     {
101         s.append(original.rangeString());
102         s.append("d");
103         s.append(revised.rcsto());
104         s.append(Diff.NL);
105         original.toString(s, "< ", Diff.NL);
106     }
107
108     /**
109      * @deprecated
110      */
111     public void toRCSString(StringBuffer JavaDoc s, String JavaDoc EOL)
112     {
113         s.append("d");
114         s.append(original.rcsfrom());
115         s.append(" ");
116         s.append(original.size());
117         s.append(EOL);
118     }
119
120     public void accept(RevisionVisitor visitor)
121     {
122         visitor.visit(this);
123     }
124 }
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