What happens with live queries when their database closes?

[Jordan Wood]

My app has a whole bunch of live queries which we keep to monitor our data.  I want to be able to close the database and open another, and be able to replace the live queries with ones which refer to my new database.  Do live queries update when their database is closed?  What about ones where the query contains no documents?

Thanks!

Jordan

[Jens Alfke]

On Jan 26, 2016, at 10:44 AM, Jordan Wood <wood.p...@gmail.com> wrote:

My app has a whole bunch of live queries which we keep to monitor our data.  I want to be able to close the database and open another, and be able to replace the live queries with ones which refer to my new database.  Do live queries update when their database is closed?

No. Closing a Database invalidates all objects derived from that database (Documents, Revisions, Views, Queries, Attachments, Replications, etc.) and you should not call them anymore (or expect them to call you.)

Similarly, closing a Manager invalidates all its Databases.

—Jens

[Jordan Wood]

Okay.  I've made my class with the CBLDatabase object a singleton, and have added an NSNotification whenever the database is opened or reopened, so the other objects can reacquire their live queries.  It all seems to be working!

Jordan