Request : LiveData observing Query.count instead of Query.find

Hi,

I'd like to use LiveData to observe the number of items resulting of a given query (the equivalent of Query.count() or Query.findLazy().size()).

As of v2.4.0, LiveData only calls Query.find, so the only implementation I came up with is not optimal at all

// Get all results as objects
// NB : db.queryContentSearch is a Query<Content>
ObjectBoxLiveData<Content> livedata = new ObjectBoxLiveData<>(db.queryContentSearch(query, metadata, favouritesOnly));

// Instanciated objects are useless because we just actually count them !
MediatorLiveData<Integer> result = new MediatorLiveData<>();
result.addSource(livedata, v -> result.setValue(v.size()));
return result;

=> Would it be possible in future versions to build LiveData's that observe Query.count ?
Or have I overlooked a feature that already exists ?

Thanks a lot for your help,
-Robb

Commencez par examiner le comportement actuel de LiveData qui appelle Query.find, puis comparez les APIs Query.count et Query.findLazy décrites dans l’issue. Le travail est terminé lorsqu’une option de LiveData peut observer le nombre de résultats d’une query sans matérialiser tous les objets de résultat et se met à jour lorsque les résultats de la query changent.