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Statistics.java

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/*
 *  Main authors:
 *     Mikael Lagerkvist <lagerkvist@gecode.org>
 *     Guido Tack <tack@gecode.org>
 *
 *  Copyright:
 *     Mikael Lagerkvist, 2006
 *     Guido Tack, 2006
 *
 *  Last modified:
 *     $Date: 2006-02-09 16:32:56 +0100 (Thu, 09 Feb 2006) $ by $Author: tack $
 *     $Revision: 2943 $
 *
 *  This file is part of Gecode, the generic constraint
 *  development environment:
 *     http://www.gecode.org
 *
 *  See the file "LICENSE" for information on usage and
 *  redistribution of this file, and for a
 *     DISCLAIMER OF ALL WARRANTIES.
 *
 */

package org.gecode.explorer;

public class Statistics {
    private int solutions;
    private int failures;
    private int choices;
    private int open;
    private int undetermined;
    private int depth;

    private StatisticsListener solutionListener;

    public Statistics() {
        reset();
    }
    
    public void reset() {
        solutions = 0;
        failures = 0;
        choices = 0;
        open = 0;
        undetermined = 1;
        depth = 0;
    }

    public void registerSolutionListener(StatisticsListener e) {
        solutionListener = e;
    }

    public void close() { open--; }
    public void newFailure() { 
        failures++; 
        solutionListener.newNode();
    }
    public void newChoice() { 
        choices++; 
        solutionListener.newNode();
    }
    public void newSolution() {
        solutions++;
        solutionListener.newSolution(solutions);
        solutionListener.newNode();
    }
    public void newOpen() { open++; }
    public void newDetermined() { --undetermined; }
    public void newUndetermined(int u) { undetermined += u; }
    public void newDepth(int d) {
        if (d > depth) depth = d;
    }

    public int getSolutions() {
        return solutions;
    }
    public int getFailures() {
        return failures;
    }
    public int getChoices() {
        return choices;
    }
    public int getOpen() {
        return open;
    }
    public int getUndetermined() {
        return undetermined;
    }
    public int getDepth() {
        return depth;
    }
}