OnConflictStrategy

const val ABORT = 3: Int

OnConflict strategy constant to abort the transaction. The transaction is rolled back.

const val FAIL = 4: Int

OnConflict strategy constant to fail the transaction.

Does not work as expected. The transaction is rolled back. Use ABORT.

const val IGNORE = 5: Int

OnConflict strategy constant to ignore the conflict.

An Insert DAO method that returns the inserted rows ids will return -1 for rows that are not inserted since this strategy will ignore the row if there is a conflict.

const val NONE = 0: Int

OnConflict strategy constant used by default when no other strategy is set. Using it prevents Room from generating ON CONFLICT clause. It may be useful when there is a need to use ON CONFLICT clause within a trigger. The runtime behavior is the same as when ABORT strategy is applied. The transaction is rolled back.

const val REPLACE = 1: Int

OnConflict strategy constant to replace the old data and continue the transaction.

An Insert DAO method that returns the inserted rows ids will never return -1 since this strategy will always insert a row even if there is a conflict.

const val ROLLBACK = 2: Int

OnConflict strategy constant to rollback the transaction.

Does not work with Android's current SQLite bindings. Use ABORT to roll back the transaction.