ac.java

这是一个以JAVA编写的程序,本人还没有试过,是一个简单的温度控制系统

package net.sf.dz.device.actuator;

import org.freehold.jukebox.conf.Configurable;

import net.sf.dz.event.ACListener;

/**
 * The A/C unit abstraction.
 *
 * <p>
 *
 * This abstraction describes any kind and/or any combination of the
 * physical A/C units.
 *
 * <p>
 *
 * For the model simplicity, it is assumed that the single stage A/C,
 * multistage A/C and combination of more than one A/C unit can be described
 * in the same way to the external observer.
 *
 * @author Copyright &copy; <a href="mailto:[e-mail]">Vadim Tkachenko</a> 2001-2002
 * @version $Id: AC.java,v 1.2 2004/06/28 20:35:48 vtt Exp $
 */
public interface AC extends Configurable {

    /**
     * @return true if the A/C is running.
     */
    boolean isRunning();

    /**
     * Demand heat transfer.
     *
     * @param factor Abstract heat/cold demand factor.
     *
     * <p>
     *
     * The implementation is supposed to translate this amount into the
     * actual capacity demand and then decide what to do: switch on/off,
     * increase/decrease production, switch to heating/cooling mode and so
     * on.
     */
    void demand(double factor);

    /**
     * Get the A/C mode.
     *
     * @return 1 if heating, 0 if off, -1 if cooling.
     */
    int getMode();

    /**
     * Set the A/C mode.
     *
     * @param mode 1 if heating, 0 if off, -1 if cooling.
     *
     * @exception IllegalArgumentException if the parameter is neither -1,
     * 0, nor 1.
     */
    void setMode(int mode);

    /**
     * Add the listener.
     *
     * @param listener The object to be notified about the state changes.
     */
    void addListener(ACListener listener);

    /**
     * Remove the listener.
     */
    void removeListener(ACListener listener);
}