org.greenrobot.greendao.annotation

Annotation Type Unique

@Retention(value=SOURCE)
 @Target(value=FIELD)
public @interface Unique

Marks property should have a UNIQUE constraint during table creation. This annotation is also applicable with @ToOne without additional foreign key property

To have a unique constraint after table creation you can use Index.unique()

Note having both @Unique and Index is redundant and causes performance decrease on DB level. See here for more information.

See Also:

Index.unique()