javax.persistence
Annotation Type GeneratedValue


@Target(value={METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface GeneratedValue

Provides for the specification of generation strategies for the values of primary keys. The GeneratedValue annotation may be applied to a primary key property or field of an entity or mapped superclass in conjunction with the Id annotation.

Author:
Emmanuel Bernard

Optional Element Summary
 String generator
          The name of the primary key generator to use as specified in the SequenceGenerator or TableGenerator annotation.
 GenerationType strategy
          The primary key generation strategy that the persistence provider must use to generate the annotated entity primary key.
 

strategy

public abstract GenerationType strategy
The primary key generation strategy that the persistence provider must use to generate the annotated entity primary key.

Default:
javax.persistence.GenerationType.AUTO

generator

public abstract String generator
The name of the primary key generator to use as specified in the SequenceGenerator or TableGenerator annotation. Defaults to the id generator supplied by persistence provider.

Default:
""