javax.jdo.annotations
Annotation Type DatastoreIdentity

@Target(value=TYPE)
@Retention(value=RUNTIME)
public @interface DatastoreIdentity

Annotation for the datastore identity of the class. Corresponds to the xml element "datastore-identity" of the "class" element.

Since:

2.1

Version:

2.1

Optional Element Summary

java.lang.String	column Name of the column for the datastore identity
Column[]	columns The column(s) making up the datastore identity.
java.lang.String	customStrategy Custom strategy to use to generate the value for the identity.
Extension[]	extensions Vendor extensions.
java.lang.String	sequence Name of sequence to use when the strategy involves sequences
IdGeneratorStrategy	strategy Strategy to use when generating datastore identities

strategy

public abstract IdGeneratorStrategy strategy

Strategy to use when generating datastore identities

Returns:

Strategy to use when generating datastore identities

Default:

javax.jdo.annotations.IdGeneratorStrategy.UNSPECIFIED

customStrategy

public abstract java.lang.String customStrategy

Custom strategy to use to generate the value for the identity. If customStrategy is non-empty, then strategy must be UNSPECIFIED.

Returns:

the custom strategy

Default:

""

sequence

public abstract java.lang.String sequence

Name of sequence to use when the strategy involves sequences

Returns:

Name of sequence to use when the strategy involves sequences

Default:

""

column

public abstract java.lang.String column

Name of the column for the datastore identity

Returns:

Name of the column for the datastore identity

Default:

""

columns

public abstract Column[] columns

The column(s) making up the datastore identity.

Returns:

The column(s) making up the datastore identity.

Default:

{}

extensions

public abstract Extension[] extensions

Vendor extensions.

Returns:

the vendor extensions

Default:

{}