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

         threadFactory = new DefaultThreadFactory(threadName, true);
      }


      LinkedBlockingQueue<Runnable> queue = new LinkedBlockingQueue<Runnable>(queueSize);
      ThreadPoolExecutor executor = new ThreadPoolExecutor(1, 1, 5, TimeUnit.SECONDS, queue, threadFactory, policy);
      executor.allowCoreThreadTimeOut(true);
      return executor;
   }


   /**
    * Return true if the driver appears to be JDBC 4.0 compliant.

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    // to sync enqueue (enqueue by caller thread is the same as sync enqueue)
    ThreadPoolExecutor executor = new ThreadPoolExecutor(asyncWorkers, asyncWorkers, 60, TimeUnit.SECONDS,
                                                         new ArrayBlockingQueue<Runnable>(asyncQueueSize),
                                                         Threads.createDaemonThreadFactory("async-exec-%d"),
                                                         createAsyncRejectedExecutionHandler());
    executor.allowCoreThreadTimeOut(true);
    asyncExecutor = executor;
  }


  @Override
  public void destroy(HandlerContext context) {

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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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          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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      int maxThreads = 1;
      long keepAliveTime = 60;
      ThreadPoolExecutor pool =
          new ThreadPoolExecutor(1, maxThreads, keepAliveTime, TimeUnit.SECONDS,
              new SynchronousQueue<Runnable>(), Threads.newDaemonThreadFactory("hbase-table"));
      pool.allowCoreThreadTimeOut(true);
      return pool;
    }


    @Override
    public void prePut(final ObserverContext<RegionCoprocessorEnvironment> e, final Put put,

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            private String createName() {
                return "oak-executor-" + counter.getAndIncrement();
            }
        });
        executor.setKeepAliveTime(1, TimeUnit.MINUTES);
        executor.allowCoreThreadTimeOut(true);
        return executor;
    }


    private MBeanServer mbeanServer;

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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,
        unit, new LinkedBlockingQueue<Runnable>(), threadFactory);
    // allow the core pool threads timeout and terminate
    boundedCachedThreadPool.allowCoreThreadTimeOut(true);
    return boundedCachedThreadPool;
  }
  
  
  /**

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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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    return mapper;
  }


  public static ThreadPoolExecutor newFixedTimingOutThreadPool(int maxThreads, long timeoutMillis, String nameFormat) {
    ThreadPoolExecutor threadPoolExecutor = new ThreadPoolExecutor(maxThreads, maxThreads, timeoutMillis, TimeUnit.MILLISECONDS, new LinkedBlockingQueue<Runnable>(), new ThreadFactoryBuilder().setNameFormat(nameFormat).build());
    threadPoolExecutor.allowCoreThreadTimeOut(true);
    return threadPoolExecutor;
  }


}

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