function _updateMessageModel(mProcessors) {
		var mUpdatedMessages = new Map(),
			sProcessorId,
			oMessageModel = Messaging.getMessageModel(),
			sTarget;

		function setMessage(oMessage) {
			mUpdatedMessages.set(oMessage, true);
		}

		for (sProcessorId in mAllMessages) {
			for (sTarget in mAllMessages[sProcessorId]) {
				mAllMessages[sProcessorId][sTarget].forEach(setMessage);
			}
		}
		_pushMessages(mProcessors);
		oMessageModel.setData(Array.from(mUpdatedMessages.keys()));
	}
update MessageModel
@param {Object<string,sap.ui.core.message.MessageProcessor>} mProcessors A map containing the affected processor IDs
@private