akka.dispatch
Interface QueueBasedMessageQueue

All Superinterfaces:
MessageQueue
All Known Subinterfaces:
BoundedDequeBasedMessageQueueSemantics, BoundedMessageQueueSemantics, DequeBasedMessageQueue, UnboundedDequeBasedMessageQueueSemantics, UnboundedMessageQueueSemantics
All Known Implementing Classes:
PeekMailbox

public interface QueueBasedMessageQueue
extends MessageQueue

A QueueBasedMessageQueue is a MessageQueue backed by a java.util.Queue


Method Summary
 void cleanUp(ActorRef owner, MessageQueue deadLetters)
          Called when the mailbox this queue belongs to is disposed of.
 boolean hasMessages()
          Indicates whether this queue is non-empty.
 int numberOfMessages()
          Should return the current number of messages held in this queue; may always return 0 if no other value is available efficiently.
 java.util.Queue<Envelope> queue()
           
 
Methods inherited from interface akka.dispatch.MessageQueue
dequeue, enqueue
 

Method Detail

queue

java.util.Queue<Envelope> queue()

numberOfMessages

int numberOfMessages()
Description copied from interface: MessageQueue
Should return the current number of messages held in this queue; may always return 0 if no other value is available efficiently. Do not use this for testing for presence of messages, use hasMessages instead.

Specified by:
numberOfMessages in interface MessageQueue

hasMessages

boolean hasMessages()
Description copied from interface: MessageQueue
Indicates whether this queue is non-empty.

Specified by:
hasMessages in interface MessageQueue

cleanUp

void cleanUp(ActorRef owner,
             MessageQueue deadLetters)
Description copied from interface: MessageQueue
Called when the mailbox this queue belongs to is disposed of. Normally it is expected to transfer all remaining messages into the dead letter queue which is passed in. The owner of this MessageQueue is passed in if available (e.g. for creating DeadLetters()), “/deadletters” otherwise.

Specified by:
cleanUp in interface MessageQueue