net.engio.mbassy.listener

Interface IMessageFilter<M>

All Known Implementing Classes:

ElFilter, Filters.RejectSubtypes, Filters.SubtypesOnly

public interface IMessageFilter<M>

Message filters can be used to control what messages are delivered to a specific message handler. Filters are attached to message handler using the @Listener annotation. If a message handler specifies filters, the filters accepts(...) method will be checked before the actual handler is invoked. The handler will be invoked only if each filter accepted the message. Example:

Author:

bennidi Date: 2/8/12

Method Summary

Methods

Modifier and Type	Method and Description
boolean	accepts(M message, MessageHandler metadata) Check the message for whatever criteria

Method Detail

accepts

boolean accepts(M message,
              MessageHandler metadata)

Check the message for whatever criteria

Parameters:

message - the message to be handled by the handler

metadata - the metadata object which describes the message handler

Returns:

true: if the message matches the criteria and should be delivered to the handler false: otherwise