area.java~2~

《深入浅出设计模式》的完整源代码

package securitysystem;

public class Area extends SecurityZone {

  boolean handleNotification(int measurement, Sensor sensor) {
    if (sensor instanceof TemperatureSensor) {
           if (measurement > 150) {
               fireAlarm(this);
               return true;
           }
       }
       return false;
  }
}