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,
037: * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
038: * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
039: * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
040: * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
041: * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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:
051: package wicket.util.diff;
052:
053: import 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: */
064: public class DeleteDelta extends Delta {
065: /**
066: * Construct.
067: */
068: DeleteDelta() {
069: }
070:
071: /**
072: * Construct.
073: *
074: * @param orig
075: */
076: public DeleteDelta(Chunk orig) {
077: init(orig, null);
078: }
079:
080: /**
081: * @see wicket.util.diff.Delta#verify(java.util.List)
082: */
083: public void verify(List target) throws PatchFailedException {
084: if (!original.verify(target)) {
085: throw new PatchFailedException();
086: }
087: }
088:
089: /**
090: * @see wicket.util.diff.Delta#applyTo(java.util.List)
091: */
092: public void applyTo(List target) {
093: original.applyDelete(target);
094: }
095:
096: /**
097: * @see wicket.util.diff.Delta#toString(java.lang.StringBuffer)
098: */
099: public void toString(StringBuffer s) {
100: s.append(original.rangeString());
101: s.append("d");
102: s.append(revised.rcsto());
103: s.append(Diff.NL);
104: original.toString(s, "< ", Diff.NL);
105: }
106:
107: /**
108: * @see wicket.util.diff.Delta#toRCSString(java.lang.StringBuffer,
109: * java.lang.String)
110: */
111: public void toRCSString(StringBuffer s, String EOL) {
112: s.append("d");
113: s.append(original.rcsfrom());
114: s.append(" ");
115: s.append(original.size());
116: s.append(EOL);
117: }
118:
119: /**
120: * @see wicket.util.diff.Delta#accept(wicket.util.diff.RevisionVisitor)
121: */
122: public void accept(RevisionVisitor visitor) {
123: visitor.visit(this);
124: }
125: }
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