Improve DataObserver reference holding

I’m trying to use obervable queries to detect when the user is logged in my application in order to start fetching data in background with correct authorization token.

    ...
    userBox.query().build().subscribe().observe(users -> fetchUserData());
    ...
    boxStore.subscribe(User.class).observe(class -> fetchUserData());

First “live” query doesn’t work whilst the second works fine whenever I put(user) a new user in the userBox.

Is this correct? I’m not sure from which thread the user is being inserted, might this be an issue? Does it make sense to use a “live” query to observe the insertion of new objects or is it just for changes in existing objects? Live queries would be great, for my application and are the main feature that made me pick ObjectBox, hope I can get it working.

[Onheiron]

Thanks! Keeping the reference works, though it’s kind of a drag.

[greenrobot-team]

The only difference to subscribing using boxStore directly is a call to .weak() and .onlyChanges() when the subscription is built. As the second doesn’t matter when subscribing to a query (the initial value is always published) I assume it has to be the weak reference.

@Onheiron Can you try keeping a reference to the Query (result of build()) or DataSubscription (result of observer()) instance, for example in a field? -ut