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package josx.platform.rcx;

/**
 * Listener of sensor events.
 * 
 * @see josx.platform.rcx.
 * Sensor#addSensorListener
 */
public interface SensorListener
{
  /**
   * Called when the canonical
   * value of the sensor changes.
   * @param
   *   aSource The sensor that generated the event.
   * @param
   *   aOldValue The old sensor value.
   * @param
   *   aNewValue The new sensor value.
   */
  public void stateChanged (Sensor aSource,
                            int aOldValue,
                            int aNewValue);
}