Package javax.websocket
Interface MessageHandler
- All Known Subinterfaces:
MessageHandler.Partial<T>
,MessageHandler.Whole<T>
public interface MessageHandler
Developers implement MessageHandlers in order to receive incoming messages
during a web socket conversation.
Each web socket session uses no more than one thread at a time to call its MessageHandlers. This means
that, provided each message handler instance is used to handle messages for one web socket session, at most
one thread at a time can be calling any of its methods. Developers who wish to handle messages from multiple
clients within the same message handlers may do so by adding the same instance as a handler on each of the Session
objects for the clients. In that case, they will need to code with the possibility of their MessageHandler
being called concurrently by multiple threads, each one arising from a different client session.
See Endpoint
for a usage example.
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Nested Class Summary
Modifier and TypeInterfaceDescriptionstatic interface
This kind of handler is notified by the implementation as it becomes ready to deliver parts of a whole message.static interface
This kind of handler is notified by the container on arrival of a complete message.