001/*
002 * ====================================================================
003 * 
004 * The Apache Software License, Version 1.1
005 * 
006 * Copyright (c) 1999-2003 The Apache Software Foundation. All rights reserved.
007 * 
008 * Redistribution and use in source and binary forms, with or without
009 * modification, are permitted provided that the following conditions are met:
010 * 
011 * 1. Redistributions of source code must retain the above copyright notice,
012 * this list of conditions and the following disclaimer.
013 * 
014 * 2. Redistributions in binary form must reproduce the above copyright notice,
015 * this list of conditions and the following disclaimer in the documentation
016 * and/or other materials provided with the distribution.
017 * 
018 * 3. The end-user documentation included with the redistribution, if any, must
019 * include the following acknowledgement: "This product includes software
020 * developed by the Apache Software Foundation (http://www.apache.org/)."
021 * Alternately, this acknowledgement may appear in the software itself, if and
022 * wherever such third-party acknowledgements normally appear.
023 * 
024 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
025 * Foundation" must not be used to endorse or promote products derived from this
026 * software without prior written permission. For written permission, please
027 * contact apache@apache.org.
028 * 
029 * 5. Products derived from this software may not be called "Apache" nor may
030 * "Apache" appear in their names without prior written permission of the Apache
031 * Software Foundation.
032 * 
033 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
034 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE APACHE
036 * SOFTWARE FOUNDATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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040 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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042 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
043 * ====================================================================
044 * 
045 * This software consists of voluntary contributions made by many individuals on
046 * behalf of the Apache Software Foundation. For more information on the Apache
047 * Software Foundation, please see <http://www.apache.org/>.
048 * 
049 */
050
051package org.apache.wicket.util.diff;
052
053import java.util.List;
054
055/**
056 * Holds a delete-delta between to revisions of a text.
057 * 
058 * @version $Id: DeleteDelta.java,v 1.1 2006/03/12 00:24:21 juanca Exp $
059 * @author <a href="mailto:juanco@suigeneris.org">Juanco Anez</a>
060 * @see Delta
061 * @see Diff
062 * @see Chunk
063 */
064public class DeleteDelta extends Delta
065{
066        /**
067         * Construct.
068         */
069        DeleteDelta()
070        {
071        }
072
073        /**
074         * Construct.
075         * 
076         * @param orig
077         */
078        public DeleteDelta(final Chunk orig)
079        {
080                init(orig, null);
081        }
082
083        @Override
084        public void verify(final List<Object> target) throws PatchFailedException
085        {
086                if (!original.verify(target))
087                {
088                        throw new PatchFailedException();
089                }
090        }
091
092        @Override
093        public void applyTo(final List<Object> target)
094        {
095                original.applyDelete(target);
096        }
097
098        @Override
099        public void toString(final StringBuilder 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        @Override
109        public void toRCSString(final StringBuilder s, final String EOL)
110        {
111                s.append("d");
112                s.append(original.rcsfrom());
113                s.append(" ");
114                s.append(original.size());
115                s.append(EOL);
116        }
117
118        @Override
119        public void accept(final RevisionVisitor visitor)
120        {
121                visitor.visit(this);
122        }
123}