| 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.
Example 1:
@Id
@GeneratedValue(strategy=SEQUENCE, generator="CUST_SEQ")
@Column(name="CUST_ID")
public Long getId() { return id; }
Example 2:
@Id
@GeneratedValue(strategy=TABLE, generator="CUST_GEN")
@Column(name="CUST_ID")
Long id;
since:
Java Persistence 1.0 |