partialUpdate()

template<typename Key, typename Value, typename UpdateTag>

template<typename UpdateValue>

std::function< void(const Key &, const UpdateValue &)> DataStorm::MultiKeyWriter< Key, Value, UpdateTag >::partialUpdate ( const UpdateTag & tag )

nodiscard

Gets a partial update generator function for the given partial update tag.

When called, the returned function generates a SampleEvent::PartialUpdate sample with the given partial update value. The UpdateValue template parameter must match the UpdateValue type used to register the updater with the Topic::setUpdater method.

Parameters

tag	The partial update tag.

Definition at line 1444 of file DataStorm.h.