de.fuberlin.wiwiss.ng4j.db
Class NamedGraphDB

java.lang.Object
  com.hp.hpl.jena.graph.impl.GraphBase
      de.fuberlin.wiwiss.ng4j.db.NamedGraphDB

All Implemented Interfaces:

Graph, GraphAdd, com.hp.hpl.jena.graph.impl.GraphWithPerform, NamedGraph

public class NamedGraphDB
extends com.hp.hpl.jena.graph.impl.GraphBase
implements NamedGraph

A database-backed Named Graph implementation which is handed out by NamedGraphSetDB.getGraph(Node). The real work is done by a QuadDB instance. This class provides a NamedGraph view onto the QuadDB interface for a fixed graph name.

Author:

Richard Cyganiak (richard@cyganiak.de)

Field Summary

Fields inherited from class com.hp.hpl.jena.graph.impl.GraphBase

bulkHandler, capabilities, closed, gem, pm, queryHandler, reifier, style

Fields inherited from interface com.hp.hpl.jena.graph.Graph

emptyGraph

Constructor Summary

NamedGraphDB(QuadDB db, Node graphName)

Method Summary

Node	getGraphName() Returns the URI of the named graph.
ExtendedIterator	graphBaseFind(TripleMatch m)
void	performAdd(Triple t)
void	performDelete(Triple t)

Methods inherited from class com.hp.hpl.jena.graph.impl.GraphBase

add, checkOpen, close, constructReifier, contains, contains, containsByFind, delete, dependsOn, find, find, forTestingOnly_graphBaseFind, getBulkUpdateHandler, getCapabilities, getEventManager, getPrefixMapping, getReifier, getTransactionHandler, graphBaseContains, graphBaseFind, graphBaseSize, isClosed, isEmpty, isIsomorphicWith, notifyAdd, notifyDelete, queryHandler, reifierContains, reifierSize, reifierTriples, size, toString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.hp.hpl.jena.graph.Graph

close, contains, contains, delete, dependsOn, find, find, getBulkUpdateHandler, getCapabilities, getEventManager, getPrefixMapping, getReifier, getTransactionHandler, isClosed, isEmpty, isIsomorphicWith, queryHandler, size

Methods inherited from interface com.hp.hpl.jena.graph.GraphAdd

add

Constructor Detail

NamedGraphDB

public NamedGraphDB(QuadDB db,
                    Node graphName)

Method Detail

getGraphName

public Node getGraphName()

Description copied from interface: NamedGraph

Returns the URI of the named graph. The returned Node instance is always an URI and cannot be a blank node or literal.

Specified by:

getGraphName in interface NamedGraph

performDelete

public void performDelete(Triple t)

Specified by:

performDelete in interface com.hp.hpl.jena.graph.impl.GraphWithPerform

Overrides:

performDelete in class com.hp.hpl.jena.graph.impl.GraphBase

graphBaseFind

public ExtendedIterator graphBaseFind(TripleMatch m)

Specified by:

graphBaseFind in class com.hp.hpl.jena.graph.impl.GraphBase

performAdd

public void performAdd(Triple t)

Specified by:

performAdd in interface com.hp.hpl.jena.graph.impl.GraphWithPerform

Overrides:

performAdd in class com.hp.hpl.jena.graph.impl.GraphBase