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public interface MessageListener
Allows a listener to be notified when a message arrives.
Contrary to the pull-style of channels, some building blocks
(e.g., PullPushAdapter
) provide an
event-like, push-style message delivery model.
In this case, the entity to be notified of message reception needs to
provide a callback to be invoked whenever a message has been received.
The MessageListener interface provides a method to do so.
Method Summary | |
---|---|
byte[] |
getState()
Answers the group state; e.g., when joining. |
void |
receive(Message msg)
Called when a message is received. |
void |
setState(byte[] state)
Sets the group state; e.g., when joining. |
Method Detail |
---|
void receive(Message msg)
msg
- byte[] getState()
void setState(byte[] state)
state
-
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