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08/03/2021, 12:52 PM
Anybody succeeded with Room and multi modules?
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// shared module, not depending on android
interface Dao {
  suspend fun getAll(): List<A>
}

// android
@Dao
interface RoomDao {
    @Query("select * from a")
    override suspend fun getAll(): List<A>
}
I am always getting 
An abstract DAO method must be annotated with one and only one of the following annotations: Insert,Delete,Query,Update,RawQuery - Dao.getAll()
Do I really have to annotate the 
Dao.getAll
too, even if I override this function in RoomDao with the one annotation? https://medium.com/androiddevelopers/7-pro-tips-for-room-fbadea4bfbd1#dd40
Solution:
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// shared module, not depending on android
interface Dao {
  suspend fun getAll(): List<@JvmSuppressWildcards A>
}
Reason: "The issue is not in room restrictions, but in kotlin implementation itself. You are using generic collection method, which by default is processed to List<? extends T> java implementation, but overridden method has List<Foo> return type. Room generator matches method signature and can't find implemented method with same signature, so you get" the error source: https://stackoverflow.com/a/56221074/6862985
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