measureoutput.java

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/**    
  * Copyright (C) 2006, Laboratorio di Valutazione delle Prestazioni - Politecnico di Milano

  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 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 General Public License for more details.

  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
  
package jmt.engine.dataAnalysis;

/**
 * A measure output object is used to print a measure value(s). It's an abstract class,
 * whose methods should be overridden to implement the way in which each kind of measure
 * should be written on the output stream.
 * @author Francesco Radaelli.
 */
public abstract class MeasureOutput {

    protected Measure measure;

    /** Creates a new instance of MeasureOutput class.
     * @param measure Reference to the measure to be "outputted".
     */
    public MeasureOutput(Measure measure) {
        this.measure = measure;
        measure.setOutput(this);
    }

    /** Overrides this method to implement the way in which each measure
     * should be written on an output stream. This method is called for every
     * sample.
     */
    public abstract void write(double Sample, double Weight);

    /** Overrides this method to implement the way in which the final measure
     * should be written on an output stream. This method is called at the end of
     * a measure.
     */
    public abstract void writeMeasure();
}