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added in version 1.0.0
belongs to Maven artifact android.arch.persistence.room:common:1.0.0

Update

public abstract @interface Update
implements Annotation

android.arch.persistence.room.Update


Marks a method in a Dao annotated class as an update method.

The implementation of the method will update its parameters in the database if they already exists (checked by primary keys). If they don't already exists, this option will not change the database.

All of the parameters of the Update method must either be classes annotated with Entity or collections/array of it.

See also:

Summary

Public methods

int onConflict()

What to do if a conflict happens.

Inherited methods

From interface java.lang.annotation.Annotation

Public methods

onConflict

int onConflict ()

What to do if a conflict happens.

Returns
int How to handle conflicts. Defaults to ABORT.

See also:

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