OnConflictStrategy

Kotlin |Java

public abstract @interface OnConflictStrategy
implements Annotation

androidx.room.OnConflictStrategy

Set of conflict handling strategies for various Dao methods.

Summary

Constants
`int`	`ABORT` OnConflict strategy constant to abort the transaction.
`int`	`FAIL` This constant is deprecated. Does not work as expected. The transaction is rolled back. Use `ABORT`.
`int`	`IGNORE` OnConflict strategy constant to ignore the conflict.
`int`	`REPLACE` OnConflict strategy constant to replace the old data and continue the transaction.
`int`	`ROLLBACK` This constant is deprecated. Does not work with Android's current SQLite bindings. Use `ABORT` to roll back the transaction.

Inherited methods

From interface


        
          java.lang.annotation.Annotation

`abstract Class<? extends Annotation>`	`annotationType()`
`abstract boolean`	`equals(Object arg0)`
`abstract int`	`hashCode()`
`abstract String`	`toString()`

Constants

ABORT

public static final int ABORT

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

Constant Value: 3 (0x00000003)

FAIL

public static final int FAIL

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

OnConflict strategy constant to fail the transaction.

Constant Value: 4 (0x00000004)

IGNORE

public static final int IGNORE

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.

Constant Value: 5 (0x00000005)

REPLACE

public static final int REPLACE

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.

Constant Value: 1 (0x00000001)

ROLLBACK

public static final int ROLLBACK

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

OnConflict strategy constant to rollback the transaction.

Constant Value: 2 (0x00000002)