/*
* This file is part of the DiffX library.
*
* For licensing information please see the file license.txt included in the release.
* A copy of this licence can also be found at
* http://www.opensource.org/licenses/artistic-license-2.0.php
*/
package com.topologi.diffx.algorithm;
import com.topologi.diffx.sequence.EventSequence;
/**
* A base class for Diff-X algorithms.
*
* @author Christophe Lauret
* @version 15 December 2004
*/
public abstract class DiffXAlgorithmBase implements DiffXAlgorithm {
// class attributes ---------------------------------------------------------------------------
/**
* The first sequence of events to test.
*/
protected final EventSequence sequence1;
/**
* The second sequence of events to test.
*/
protected final EventSequence sequence2;
/**
* Length of the first sequence to compare.
*/
protected final int length1;
/**
* Length of the second sequence to compare.
*/
protected final int length2;
/**
* The length of the LCS.
*/
protected int length = -1;
// constructor --------------------------------------------------------------------------------
/**
* Creates a new DiffX algorithm base class.
*
* @param seq0 The first sequence to compare.
* @param seq1 The second sequence to compare.
*/
public DiffXAlgorithmBase(EventSequence seq0, EventSequence seq1) {
this.sequence1 = seq0;
this.sequence2 = seq1;
this.length1 = seq0.size();
this.length2 = seq1.size();
}
// methods ------------------------------------------------------------------------------------
/**
* {@inheritDoc}
*/
public final EventSequence getFirstSequence() {
return this.sequence1;
}
/**
* {@inheritDoc}
*/
public final EventSequence getSecondSequence() {
return this.sequence2;
}
}