org.apache.hadoop.hbase.util

类 StealJobQueue<T>

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractQueue<E>

java.util.concurrent.PriorityBlockingQueue<T>

org.apache.hadoop.hbase.util.StealJobQueue<T>

所有已实现的接口:

Serializable, Iterable<T>, Collection<T>, BlockingQueue<T>, Queue<T>

@InterfaceAudience.Private
public class StealJobQueue<T>
extends PriorityBlockingQueue<T>

This queue allows a ThreadPoolExecutor to steal jobs from another ThreadPoolExecutor. This queue also acts as the factory for creating the PriorityBlockingQueue to be used in the steal-from ThreadPoolExecutor. The behavior of this queue is the same as a normal PriorityBlockingQueue except the take/poll(long,TimeUnit) methods would also check whether there are jobs in the steal-from queue if this q ueue is empty. Note the workers in ThreadPoolExecutor must be pre-started so that they can steal job from the other queue, otherwise the worker will only be started after there are jobs submitted to main queue.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
StealJobQueue(Comparator<? super T> comparator)
StealJobQueue(int initCapacity, int stealFromQueueInitCapacity, Comparator<? super T> comparator)

方法概要

限定符和类型	方法和说明
BlockingQueue<T>	getStealFromQueue() Get a queue whose job might be stolen by the consumer of this original queue
boolean	offer(T t)
T	poll(long timeout, TimeUnit unit)
T	take()

从类继承的方法 java.util.concurrent.PriorityBlockingQueue

add, clear, comparator, contains, drainTo, drainTo, iterator, offer, peek, poll, put, remainingCapacity, remove, size, spliterator, toArray, toArray, toString

从类继承的方法 java.util.AbstractQueue

addAll, element, remove

从类继承的方法 java.util.AbstractCollection

containsAll, isEmpty, removeAll, retainAll

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 java.util.Queue

element, remove

从接口继承的方法 java.util.Collection

addAll, containsAll, equals, hashCode, isEmpty, parallelStream, removeAll, removeIf, retainAll, stream

从接口继承的方法 java.lang.Iterable

forEach

构造器详细资料

StealJobQueue

public StealJobQueue(Comparator<? super T> comparator)

StealJobQueue

public StealJobQueue(int initCapacity,
                     int stealFromQueueInitCapacity,
                     Comparator<? super T> comparator)

方法详细资料

getStealFromQueue

public BlockingQueue<T> getStealFromQueue()

Get a queue whose job might be stolen by the consumer of this original queue

返回:

the queue whose job could be stolen

offer

public boolean offer(T t)

指定者:

offer 在接口中 BlockingQueue<T>

指定者:

offer 在接口中 Queue<T>

覆盖:

offer 在类中 PriorityBlockingQueue<T>

take

public T take()
       throws InterruptedException

指定者:

take 在接口中 BlockingQueue<T>

覆盖:

take 在类中 PriorityBlockingQueue<T>

抛出:

InterruptedException

poll

public T poll(long timeout,
              TimeUnit unit)
       throws InterruptedException

指定者:

poll 在接口中 BlockingQueue<T>

覆盖:

poll 在类中 PriorityBlockingQueue<T>

抛出:

InterruptedException