akka.dispatch

Interface ControlAwareMessageQueueSemantics

All Superinterfaces:

MessageQueue, MultipleConsumerSemantics, QueueBasedMessageQueue

All Known Subinterfaces:

BoundedControlAwareMessageQueueSemantics, UnboundedControlAwareMessageQueueSemantics

All Known Implementing Classes:

BoundedControlAwareMailbox.MessageQueue, UnboundedControlAwareMailbox.MessageQueue

public interface ControlAwareMessageQueueSemantics
extends QueueBasedMessageQueue

ControlAwareMessageQueue handles messages that extend ControlMessage with priority.

Method Summary

Modifier and Type	Method and Description
java.util.Queue<Envelope>	controlQueue()
Envelope	dequeue() Try to dequeue the next message from this queue, return null failing that.
void	enqueue(ActorRef receiver, Envelope handle) Try to enqueue the message to this queue, or throw an exception.
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.QueueBasedMessageQueue

cleanUp

Method Detail

controlQueue

java.util.Queue<Envelope> controlQueue()

queue

java.util.Queue<Envelope> queue()

Specified by:

queue in interface QueueBasedMessageQueue

enqueue

void enqueue(ActorRef receiver,
             Envelope handle)

Description copied from interface: MessageQueue

Try to enqueue the message to this queue, or throw an exception.

Specified by:

enqueue in interface MessageQueue

Parameters:

receiver - (undocumented)

handle - (undocumented)

dequeue

Envelope dequeue()

Description copied from interface: MessageQueue

Try to dequeue the next message from this queue, return null failing that.

Specified by:

dequeue in interface MessageQueue

Returns:

(undocumented)

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

Specified by:

numberOfMessages in interface QueueBasedMessageQueue

Returns:

(undocumented)

hasMessages

boolean hasMessages()

Description copied from interface: MessageQueue

Indicates whether this queue is non-empty.

Specified by:

hasMessages in interface MessageQueue

Specified by:

hasMessages in interface QueueBasedMessageQueue

Returns:

(undocumented)