package org.lucci.madhoc.simulation.measure;



/*
 * Created on Jul 26, 2004
 */

/**
 * @author luc.hogie
 */
public abstract class NaturalNumberSensor extends NumericalSensor
{

    /* (non-Javadoc)
     * @see org.lucci.madhoc.simulation.Measure#isValueValid(java.lang.Object)
     */
    public boolean isValueValid(Number value)
    {
            if (value != null)
            {
                double v = ((Double) value).doubleValue();
                return  v >= 0;
            }
            else
            {
                return true;
            }
    }
}