simheatpump.java

drools 一个开放源码的规则引擎

package org.drools.spring.examples.jiahvac.sim;

/*
 * Copyright 2005 (C) The Werken Company. All Rights Reserved.
 *
 * Redistribution and use of this software and associated documentation
 * ("Software"), with or without modification, are permitted provided that the
 * following conditions are met:
 *
 * 1. Redistributions of source code must retain copyright statements and
 * notices. Redistributions must also contain a copy of this document.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
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 * from this Software without prior written permission of The Werken Company.
 * For written permission, please contact [e-mail].
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 * 4. Products derived from this Software may not be called "drools" nor may
 * "drools" appear in their names without prior written permission of The Werken
 * Company. "drools" is a registered trademark of The Werken Company.
 *
 * 5. Due credit should be given to The Werken Company.
 * (http://drools.werken.com/).
 *
 * THIS SOFTWARE IS PROVIDED BY THE WERKEN COMPANY AND CONTRIBUTORS ``AS IS''
 * AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;

import org.drools.spring.examples.jiahvac.model.Floor;
import org.drools.spring.examples.jiahvac.model.HeatPump;

public class SimHeatPump implements HeatPump {

    private final int id;
    private final Floor[] floors;
    private State state = State.OFF;
    private State prevState = State.OFF;
    private PropertyChangeSupport pcs = new PropertyChangeSupport(this);

    public SimHeatPump(int id, Floor[] floors) {
        this.id = id;
        this.floors = floors;
    }

    public int getId() {
        return id;
    }
    
    public Floor[] getFloors() {
        return floors; 
    }
    
    public boolean isServicing(Floor floor) {
        for (Floor servicedFloor : floors) {
            if (floor.equals(servicedFloor)) {
                return true;
            }
        }
        return false;
    }

    public State getState() {
        return state;
    }

    public void setState(State state) {
        this.state = state;
        pcs.firePropertyChange("state", prevState, state);
        prevState = state;
    }

    public void addPropertyChangeListener(PropertyChangeListener listener) {
        pcs.addPropertyChangeListener(listener);
    }
    
    public void removePropertyChangeListener(PropertyChangeListener listener) {
        pcs.removePropertyChangeListener(listener);
    }
    
    @Override
    public String toString() {
        return "pump("+id+")=" + state;
    }
}