1    package classUtils.pack.util; 
2     
3    /** 
4     * This interface extends the standard Runnable by providing 
5     * methods to gracefully shut down a Thread. 
6     * 
7     * @author C. Sadun 
8     * @version 1.0 
9     */ 
10   public interface Terminable extends Runnable { 
11    
12       /** 
13        * Unconditionally requests a shutdown. The runnable will complete 
14        * its last atomic operation, and gracefully exit the run() method. 
15        */ 
16       public void shutdown(); 
17    
18       /** 
19        * Return <b>true</b> if a shutdown has been requested. 
20        * @return <b>true</b> if a shutdown has been requested 
21        */ 
22       public boolean isShuttingDown(); 
23    
24   }