Examples of java.util.concurrent.ThreadPoolExecutor.allowCoreThreadTimeOut()

Class java.util.concurrent.ThreadPoolExecutor

Examples of java.util.concurrent.ThreadPoolExecutor.allowCoreThreadTimeOut()

java.util.concurrent.ThreadPoolExecutor.allowCoreThreadTimeOut()
Sets the policy governing whether core threads may time out and terminate if no tasks arrive within the keep-alive time, being replaced if needed when new tasks arrive. When false, core threads are never terminated due to lack of incoming tasks. When true, the same keep-alive policy applying to non-core threads applies also to core threads. To avoid continual thread replacement, the keep-alive time must be greater than zero when setting {@code true}. This method should in general be called before the pool is actively used. @param value {@code true} if should time out, else {@code false} @throws IllegalArgumentException if value is {@code true}and the current keep-alive time is not greater than zero @since 1.6

          CORE_THREADS_PER_VOLUME, MAXIMUM_THREADS_PER_VOLUME, 
          THREADS_KEEP_ALIVE_SECONDS, TimeUnit.SECONDS, 
          new LinkedBlockingQueue<Runnable>(), threadFactory);


      // This can reduce the number of running threads
      executor.allowCoreThreadTimeOut(true);
      executors.put(vol, executor);
    }
    
  }

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                maxThreads,
                keepAliveTime,
                TimeUnit.SECONDS,
                workQueue,
                Threads.newDaemonThreadFactory(toString() + "-shared-"));
            tpe.allowCoreThreadTimeOut(true);
            this.batchPool = tpe;
          }
          this.cleanupPool = true;
        }
      }

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      ThreadFactory threadFactory) {
    ThreadPoolExecutor boundedCachedThreadPool =
      new ThreadPoolExecutor(maxCachedThread, maxCachedThread, timeout,
        TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(), threadFactory);
    // allow the core pool threads timeout and terminate
    boundedCachedThreadPool.allowCoreThreadTimeOut(true);
    return boundedCachedThreadPool;
  }
  
  
  /**

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                return new JobFutureTask<T>(runnable, value);
            }
            
        };
        
        exec.allowCoreThreadTimeOut(true); // ... and allow core threads to time out.  This just keeps things clean when idle, and is nice for ftests modes, etc., where we'd especially like these not to linger.
        return exec;
    }


    /**
     * Subclasses FutureTask for the sole purpose of providing {@link #getCallable()}, which is used to extract the producer in the {@link JobBasedRoundRobinQueue}

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          CORE_THREADS_PER_VOLUME, MAXIMUM_THREADS_PER_VOLUME, 
          THREADS_KEEP_ALIVE_SECONDS, TimeUnit.SECONDS, 
          new LinkedBlockingQueue<Runnable>(), threadFactory);


      // This can reduce the number of running threads
      executor.allowCoreThreadTimeOut(true);
      executors.put(volumes[v], executor);
    }
    
  }

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    private ThreadPoolExecutor createExecutor() {
        // TODO: This value of 10 seconds seems to low, see discussion at
        // http://activemq.2283324.n4.nabble.com/InactivityMonitor-Creating-too-frequent-threads-tp4656752.html;cid=1348142445209-351
        ThreadPoolExecutor exec = new ThreadPoolExecutor(0, Integer.MAX_VALUE, 10, TimeUnit.SECONDS, new SynchronousQueue<Runnable>(), factory);
        exec.allowCoreThreadTimeOut(true);
        return exec;
    }
}

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        }
    };


    private ThreadPoolExecutor createExecutor() {
        ThreadPoolExecutor exec = new ThreadPoolExecutor(0, 2, 30, TimeUnit.SECONDS, new LinkedBlockingQueue<Runnable>(), factory);
        exec.allowCoreThreadTimeOut(true);
        return exec;
    }
}

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        }
    };


    private ThreadPoolExecutor createExecutor() {
        ThreadPoolExecutor exec = new ThreadPoolExecutor(0, Integer.MAX_VALUE, 10, TimeUnit.SECONDS, new SynchronousQueue<Runnable>(), factory);
        exec.allowCoreThreadTimeOut(true);
        return exec;
    }
}

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          CORE_THREADS_PER_VOLUME, MAXIMUM_THREADS_PER_VOLUME, 
          THREADS_KEEP_ALIVE_SECONDS, TimeUnit.SECONDS, 
          new LinkedBlockingQueue<Runnable>(), threadFactory);


      // This can reduce the number of running threads
      executor.allowCoreThreadTimeOut(true);
      executors.put(volumes[v], executor);
    }
    
  }

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    BlockingQueue<Runnable> queue = createQueue(this.queueCapacity);
    ThreadPoolExecutor executor  = new ThreadPoolExecutor(
        this.corePoolSize, this.maxPoolSize, this.keepAliveSeconds, TimeUnit.SECONDS,
        queue, threadFactory, rejectedExecutionHandler);
    if (this.allowCoreThreadTimeOut) {
      executor.allowCoreThreadTimeOut(true);
    }


    this.threadPoolExecutor = executor;
    return executor;
  }

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