TransferQueue
public
interface
TransferQueue
implements
BlockingQueue<E>
| java.util.concurrent.TransferQueue<E> |
A BlockingQueue in which producers may wait for consumers
to receive elements. A TransferQueue may be useful for
example in message passing applications in which producers
sometimes (using method transfer(E)) await receipt of
elements by consumers invoking take or poll, while
at other times enqueue elements (via method put) without
waiting for receipt.
Non-blocking and
time-out versions of
tryTransfer are also available.
A TransferQueue may also be queried, via hasWaitingConsumer(), whether there are any threads waiting for
items, which is a converse analogy to a peek operation.
Like other blocking queues, a TransferQueue may be
capacity bounded. If so, an attempted transfer operation may
initially block waiting for available space, and/or subsequen