All locally cached metadata as a map. Cached metadata is updated under following circumstances:

getAllMetaData returned successfully deleteMetaData returned successfully deleteAllMetaData returned successfully updateMetaData returned successfully BaseChannelHandler.onMetaDataCreated is called BaseChannelHandler.onMetaDataUpdated is called BaseChannelHandler.onMetaDataDeleted is called

Please note that this method only caches values available in above methods: if getAllMetaData is never called on this instance, the map returned by this method may not contain all metadata mappings.