io.objectbox.annotation

Annotation Type Unique

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

Enforces that the value of a property is unique among all objects in a box before an object can be put.

Trying to put an object with offending values will result in a UniqueViolationException.

Unique properties are based on an @Index, so the same restrictions apply. It is supported to explicitly add the @Index annotation to configure the index.