com.bigdata.gom.om

Class IDGenerator

java.lang.Object

com.bigdata.gom.om.IDGenerator

All Implemented Interfaces:

IIDGenerator

public class IDGenerator
extends Object
implements IIDGenerator

Generator for globally unique URIs.

Author:

Bryan Thompson

Constructor Summary

Constructors

Constructor and Description
IDGenerator(String endpoint, UUID uuid, org.openrdf.model.ValueFactory valueFactory)

Method Summary

Methods

Modifier and Type	Method and Description
org.openrdf.model.URI	genId() Generate a globally unique URI.
org.openrdf.model.URI	genId(String scope) Generate a globally unique URI.
void	rollback() A rollback hook is required

Methods inherited from class java.lang.Object

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

Constructor Detail

IDGenerator

public IDGenerator(String endpoint,
           UUID uuid,
           org.openrdf.model.ValueFactory valueFactory)

Parameters:

endpoint - The SPARQL endpoint.

uuid - The UUID for the IObjectManager. This is used to avoid collisions between different IObjectManagers.

valueFactory - The ValueFactory that will be used when new URIs are generated.

Method Detail

genId

public org.openrdf.model.URI genId()

Description copied from interface: IIDGenerator

Generate a globally unique URI.

Specified by:

genId in interface IIDGenerator

Returns:

The URI.

genId

public org.openrdf.model.URI genId(String scope)

Description copied from interface: IIDGenerator

Generate a globally unique URI.

Specified by:

genId in interface IIDGenerator

Parameters:

scope - The scope will be incorporated into the URI. This is not necessary to make the URI globally unique, but it can make it easier to embed some non-opaque semantics into a globally unique URI.

Returns:

The URI.

rollback

public void rollback()

Description copied from interface: IIDGenerator

A rollback hook is required

Specified by:

rollback in interface IIDGenerator