/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.commons.jrcs.diff.myers;
/**
* Represents a snake in a diffpath.
* <p>
*
* {@link DiffNode DiffNodes} and {@link Snake Snakes} allow for compression
* of diffpaths, as each snake is represented by a single {@link Snake Snake}
* node and each contiguous series of insertions and deletions is represented
* by a single {@link DiffNode DiffNodes}.
*
* @version $Revision: 1.3 $ $Date: 2004/02/28 03:35:36 $
* @author <a href="mailto:juanco@suigeneris.org">Juanco Anez</a>
*
*/
public final class Snake
extends PathNode
{
/**
* Constructs a snake node.
*
* @param the position in the original sequence
* @param the position in the revised sequence
* @param prev the previous node in the path.
*/
public Snake(int i, int j, PathNode prev)
{
super(i, j, prev);
}
/**
* {@inheritDoc}
* @return true always
*/
public boolean isSnake()
{
return true;
}
}