简单的Java计时器库

Question

I have need for timer code in Java with these features:

• Setting pieces of codes ( Runnable or something like it) to execute once after a specific delay (with second precision)
• Changing the delay of an existing timer after the fact and cancelling timers.
• Using a thread pool (so no java.util.Timer )

I've looked into using Quartz, but it appears to be simply too large.

Is there a smallish library that does this? Or can I actually use Quartz? Or how would I implement it myself, using ScheduledExecutor ?

Answer 1

I didn't quite ask this question but the only thing you seem to want that Java timers aren't giving is thread pooling, and while I never got around to using the answers I got they seem to address that

Can I saturate a program with Timer objects?

Answer 2

Look at this post : Java Timer vs ExecutorService?

 public <V> ScheduledFuture<V> schedule(Callable<V> callable, long delay, TimeUnit unit); public ScheduledFuture<V> scheduleAtFixedRate(Runnable command, long initialDelay, long period, TimeUnit unit); public ScheduledFuture<V> scheduleWithFixedDelay( Runnable command, long initialDelay, long delay, TimeUnit unit); 

Answer 3

请看： http ： //download.oracle.com/javase/6/docs/api/java/util/concurrent/ScheduledThreadPoolExecutor.html