@Target(value={TYPE,METHOD,FIELD})
@Retention(value=RUNTIME)
public @interface SequenceGenerator
GeneratedValue
annotation. A sequence generator may be specified on the entity
class or on the primary key field or property. The scope of the
generator name is global to the persistence unit (across all
generator types).
Example: @SequenceGenerator(name="EMP_SEQ", allocationSize=25)
| Modifier and Type | Required Element and Description |
|---|---|
java.lang.String |
name
(Required) A unique generator name that can be referenced
by one or more classes to be the generator for primary key
values.
|
| Modifier and Type | Optional Element and Description |
|---|---|
int |
allocationSize
(Optional) The amount to increment by when allocating
sequence numbers from the sequence.
|
java.lang.String |
catalog
(Optional) The catalog of the sequence generator.
|
int |
initialValue
(Optional) The value from which the sequence object
is to start generating.
|
java.lang.String |
schema
(Optional) The schema of the sequence generator.
|
java.lang.String |
sequenceName
(Optional) The name of the database sequence object from
which to obtain primary key values.
|
public abstract java.lang.String name
public abstract java.lang.String sequenceName
Defaults to a provider-chosen value.
public abstract java.lang.String catalog
public abstract java.lang.String schema
public abstract int initialValue
public abstract int allocationSize