Interface IQueueDequeue
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- All Known Subinterfaces:
IQueue
public interface IQueueDequeue
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Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description Eventblocking_dequeue(int timeout_millis)Dequeue a single Event.Event[]blocking_dequeue(int timeout_millis, int num)Dequeue a multiple Events.Event[]blocking_dequeue_all(int timeout_millis)Dequeue all Events currently on queue.Eventdequeue()Dequeue a single event.Event[]dequeue(int num)Dequeue several events in one operation.Event[]dequeue_all()Dequeue all available Events.intsize()Provide the current size of the queue (the number of Events) currently on the queue.
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Method Detail
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dequeue
Event dequeue()
Dequeue a single event. Returns null if no Events available for dequeue- Returns:
- Event the Event dequeued. Null if queue is empty.
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dequeue
Event[] dequeue(int num)
Dequeue several events in one operation. num events are dequeued.- Returns:
- Event[] the Events dequeue. Returns null if there are not sufficient events on queue to support dequeuing num events
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dequeue_all
Event[] dequeue_all()
Dequeue all available Events.- Returns:
- Event[] the events on this queue. Returns null if there are no events in queue
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blocking_dequeue
Event blocking_dequeue(int timeout_millis)
Dequeue a single Event. Blocks until an Event is available for dequeue, or until timeout_millis have elapsed. If timeout_millis is -1, dequeue does not timeout.- Parameters:
timeout_millis- the timeout for a dequeue in milliseconds.- Returns:
- Event removed from queue. Returns null if no events on queue.
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blocking_dequeue
Event[] blocking_dequeue(int timeout_millis, int num)
Dequeue a multiple Events. Blocks until num Events are available for dequeue, or until timeout_millis have elapsed. If timeout_millis is -1, dequeue does not timeout.- Parameters:
timeout_millis- the timeout for a dequeue in milliseconds.num- the number of Events to dequeue- Returns:
- Event [] the num Events removed from queue
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blocking_dequeue_all
Event[] blocking_dequeue_all(int timeout_millis)
Dequeue all Events currently on queue. Blocks until num Events are available for dequeue, or until timeout_millis have elapsed. If timeout_millis is -1, dequeue does not timeout.- Parameters:
timeout_millis- the timeout for a dequeue in milliseconds.- Returns:
- Event [] the num Events removed from queue
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size
int size()
Provide the current size of the queue (the number of Events) currently on the queue.- Returns:
- size the int size of the queue
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