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@Target(value={TYPE,METHOD,FIELD}) @Retention(value=RUNTIME) public @interface SequenceGenerator
Defines a primary key generator that may be referenced by name when
a generator element is specified for the 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)
Required Element Summary | |
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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. |
Optional Element Summary | |
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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. |
Element Detail |
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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
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EclipseLink 2.0.0, build 'v20091127-r5931' API Reference | |||||||||
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