Package io.objectbox.annotation

Annotation Interface IdCompanion

@Retention(CLASS)
@Target(FIELD)
public @interface IdCompanion

Marks a property as a companion to an @Id property. There can only be one companion property.

By defining an @Id companion property, the entity type uses a special ID encoding scheme involving this property in addition to the ID.

For Time Series IDs, a companion property of type Date or DateNano represents the exact timestamp.