sqlite - Android Room Persistence Library: Upsert -


android's room persistence library graciously includes @insert , @update annotations work objects or collections. have use case (push notifications containing model) require upsert data may or may not exist in database.

sqlite doesn't have upsert natively, , workarounds described in so question. given solutions there, how 1 apply them room?

to more specific, how can implement insert or update in room not break foreign key constraints? using insert onconflict=replace cause ondelete foreign key row called. in case ondelete causes cascade, , reinserting row cause rows in other tables foreign key deleted. not intended behavior.

use @insert(onconflict = onconflictstrategy.replace) implement insert or replace, shown in the accepted answer on linked-to question.


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