57 lines
No EOL
1.5 KiB
Java
57 lines
No EOL
1.5 KiB
Java
package org.apache.commons.jrcs.diff.myers;
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/**
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* <p>Title: </p>
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* <p>Description: </p>
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* <p>Copyright: Copyright (c) 2002</p>
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* <p>Company: </p>
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* @author not attributable
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* @version 1.0
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*/
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/**
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* A diffnode in a diffpath.
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* <p>
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* A DiffNode and its previous node mark a delta between
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* two input sequences, that is, two differing subsequences
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* between (possibly zero length) matching sequences.
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*
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* {@link DiffNode DiffNodes} and {@link Snake Snakes} allow for compression
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* of diffpaths, as each snake is represented by a single {@link Snake Snake}
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* node and each contiguous series of insertions and deletions is represented
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* by a single {@link DiffNode DiffNodes}.
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*
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* @version $Revision: 1.1 $ $Date: 2003/07/14 12:22:29 $
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* @author <a href="mailto:juanco@suigeneris.org">Juanco Anez</a>
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*
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*/
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public final class DiffNode
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extends PathNode
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{
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/**
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* Constructs a DiffNode.
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* <p>
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* DiffNodes are compressed. That means that
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* the path pointed to by the <code>prev</code> parameter
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* will be followed using {@link PathNode#previousSnake}
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* until a non-diff node is found.
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*
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* @param the position in the original sequence
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* @param the position in the revised sequence
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* @param prev the previous node in the path.
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*/
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public DiffNode(int i, int j, PathNode prev)
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{
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super(i, j, (prev == null ? null : prev.previousSnake()) );
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}
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/**
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* {@inheritDoc}
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* @return false, always
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*/
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public boolean isSnake()
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{
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return false;
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}
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} |