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ap...@google.com
This happens when blocking thread interrupted.
Use case: RxJava, When switchMap is upstream, downstream blocking operation will be interrupted.
In older version room, runInTransaction is not interruptible, never throws exception like this.
da...@google.com
We updated Room internals to Coroutines and one of the improvements is interruption. Before the internal changes, Room would ignore thread interruption, database operations where not really cancellable, but in the latest version and due to Coroutines, Room can be interrupted but since it has to return some value which it couldn't compute it then throws InterruptedException as part of the runBlocking used to bridge blocking DAO functions with Coroutine internals. I think you will need to handle the exception as any other and determine what to return or ignore since Room can't make that decision for you.
sk...@gmail.com
That's a big change.
I think some method should be marked with @Throws(InterruptedException::class) like runBlocking.
yb...@google.com
da...@google.com
runBlocking used to bridge blocking DAO functions with Coroutine internals
It seems that all non-suspend DAO query function are throws InterruptedException.
Huge migration.
sk...@gmail.com
da...@google.com
An update: I agree this is a big behavior change and for compatibility reasons we want to continue having Room blocking DAO functions and API be uninterruptible. We are trying to work on a solution for this.
Description
Version used: 2.1.0-alpha03
Devices/Android versions reproduced on: compilation error
When using suspend SELECT method with TypeConverter parameter, room-compiler generate incorrect method code with return type java.lang.Object.
Compilation exceptions:
• The query returns some columns [...] which are not used by java.lang.Object. You can use @ColumnInfo annotation on the fields to specify the mapping. You can suppress this warning by annotating the method with @SuppressWarnings(RoomWarnings.CURSOR_MISMATCH).
• Not sure how to convert a Cursor to this method's return type (java.lang.Object).
• Query method parameters should either be a type that can be converted into a database column or a List / Array that contains such type. You can consider adding a Type Adapter for this.
But when I remove suspend modifier all is ok.