+ inline bool isBuffering() { return _isBuffering; }
+ inline RequesterType type() { return _requesterType; }
+ inline const QList<Message> &bufferedMessages() { return _bufferedMessages; }
+
+ inline int buffersWaiting() const { return _buffersWaiting.count(); }
+ inline int totalBuffers() const { return _totalBuffers; }
+
+ bool buffer(BufferId bufferId, const MessageList &messages); //! returns false if it was the last missing backlogpart
+
+ virtual void requestBacklog(const BufferIdList &bufferIds) = 0;
+ virtual inline void requestInitialBacklog() { requestBacklog(allBufferIds()); }
+
+ virtual void flushBuffer();