/*
 *  RapidMiner
 *
 *  Copyright (C) 2001-2011 by Rapid-I and the contributors
 *
 *  Complete list of developers available at our web site:
 *
 *       http://rapid-i.com
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU Affero General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU Affero General Public License for more details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with this program.  If not, see http://www.gnu.org/licenses/.
 */
package com.rapidminer.datatable;

import com.rapidminer.operator.visualization.dependencies.NumericalMatrix;

/**
 *  This class allows to use the entries of a {@link com.rapidminer.operator.visualization.dependencies.NumericalMatrix} 
 *  as basis for {@link com.rapidminer.datatable.DataTableRow}.
 *  
 *   @author Ingo Mierswa
 */
public class PairwiseMatrix2DataTableRowWrapper implements DataTableRow {

    private NumericalMatrix matrix;
    
    private int firstIndex;
    
    private int secondIndex;
    
    /** Creates a new wrapper. */
    public PairwiseMatrix2DataTableRowWrapper(NumericalMatrix matrix, int firstIndex, int secondIndex) {
        this.matrix = matrix;
        this.firstIndex = firstIndex;
        this.secondIndex = secondIndex;
    }
    
    public String getId() { 
        return "value(" + this.matrix.getColumnName(firstIndex) + ", " + this.matrix.getColumnName(secondIndex) + ") = " + this.matrix.getValue(firstIndex, secondIndex);
    } 
    
    public double getValue(int index) {
        if (index == 0) {
            return firstIndex;
        } else if (index == 1) {
            return secondIndex;
        } else {
            return this.matrix.getValue(firstIndex, secondIndex);
        }
    }
    
    public int getNumberOfValues() {
        return 3;
    }
}