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From: markspace <markspace@nospam.nospam>
Newsgroups: comp.lang.java.programmer
Subject: Re: thread pool with waiting option
Date: Thu, 10 Apr 2014 08:36:07 -0700
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What's your goal here?  What are you actually trying to accomplish or 
simulate?

It looks to me like you want something similar to fork/join, but your 
question only has a single implementation and no other clues as to what 
is going on.

Random comments inline:

On 4/10/2014 5:37 AM, Philipp Kraus wrote:
>
> while (true)
> {
>      each thread in thread pool
>      {
>          get object from working list
>          object.run
>          push object into finished list
>      }

This appears to run each task sequentially.  Not much "multi-threading" 
happening.

>      wait for all threads are finished
>      swap finished list with working list

?? Once a thread is finished, you want to run it again?  I don't think 
this will work like you expect.

>
>      if user sends a wait signal
>         wait
>      if user sends a stop signal

Use Thread.interrupt() to stop a thread.  If you don't do any IO you'll 
have to poll it yourself.

>      {
>          clear working list
>          clear finish list
>          remove all threads
>          break
>     }
> }
>
> Which datastructures can be used in Java for this structure? IMHO I

Your ideas are funky and I doubt there's one that can be used directly. 
  You may have to extend AbstractExecutor and just roll your own.