org.deegree.io.datastore.idgenerator
Class UUIDGenerator

java.lang.Object
  org.deegree.io.datastore.idgenerator.IdGenerator
      org.deegree.io.datastore.idgenerator.UUIDGenerator

public class UUIDGenerator
extends IdGenerator

Primary key and FeatureId generator that is based on UUIDs.

Version:

$Revision: 18195 $, $Date: 2009-06-18 17:55:39 +0200 (Thu, 18 Jun 2009) $

Author:

Markus Schneider , last edited by: $Author: mschneider $

Field Summary

Fields inherited from class org.deegree.io.datastore.idgenerator.IdGenerator

ft, params, TYPE_UUID

Constructor Summary

UUIDGenerator(Properties params)
Creates a new UUIDGenerator instance.

Method Summary

String	getNewId(DatastoreTransaction ta) Returns a new primary key.
FeatureId	getNewId(MappedFeatureType ft, DatastoreTransaction ta) Returns a new id for a feature of the given type.

Methods inherited from class org.deegree.io.datastore.idgenerator.IdGenerator

getInstance

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UUIDGenerator

public UUIDGenerator(Properties params)
              throws IdGenerationException

Creates a new UUIDGenerator instance.

Supported configuration parameters:

Name	optional?	Usage
macAddress	yes	specify MAC address component of UUID

Parameters:

params - configuration parameters

Throws:

IdGenerationException

Method Detail

getNewId

public String getNewId(DatastoreTransaction ta)
                throws IdGenerationException

Returns a new primary key.

Specified by:

getNewId in class IdGenerator

Parameters:

ta - datastore transaction (context)

Returns:

a new primary key.

Throws:

IdGenerationException - if the generation of the id could not be performed

getNewId

public FeatureId getNewId(MappedFeatureType ft,
                          DatastoreTransaction ta)
                   throws IdGenerationException

Returns a new id for a feature of the given type.

Specified by:

getNewId in class IdGenerator

Parameters:

ft - (mapped) feature type (irrelevant for this generator)

ta - datastore transaction (context)

Returns:

a new feature id.

Throws:

IdGenerationException