程序包 org.apache.seatunnel.engine.server.utils

类 PeekBlockingQueue<E>

java.lang.Object

org.apache.seatunnel.engine.server.utils.PeekBlockingQueue<E>

public class PeekBlockingQueue<E>
extends Object

PeekBlockingQueue implements blocking when peeking. Queues like BlockingQueue only support blocking when take() is called. The original solution used sleep(2000) to check whether there was data in the pending queue. This solution still had performance drawbacks, so it was changed to use peek blocking, which allows tasks to be scheduled more efficiently.

Application scenario: In CoordinatorService, the following process needs to be executed:
1. Peek data from the queue.
2. Check if resources are sufficient.
3. If resources are sufficient, take() the data; otherwise, do not take data from the queue.

构造器概要

构造器

构造器	说明
PeekBlockingQueue()

方法概要

修饰符和类型	方法	说明
E	peekBlocking()
void	put(E element)
void	release()
Integer	size()
E	take()

从类继承的方法 java.lang.Object

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

构造器详细资料

PeekBlockingQueue

public PeekBlockingQueue()

方法详细资料

put

public void put(E element)

take

public E take()
       throws InterruptedException

抛出:

InterruptedException

release

public void release()

peekBlocking

public E peekBlocking()
               throws InterruptedException

抛出:

InterruptedException

size

public Integer size()