xdi2.core.impl.keyvalue

Class AbstractKeyValueGraphFactory

java.lang.Object

xdi2.core.impl.AbstractGraphFactory

xdi2.core.impl.keyvalue.AbstractKeyValueGraphFactory

All Implemented Interfaces:

GraphFactory

Direct Known Subclasses:

BDBKeyValueGraphFactory, MapKeyValueGraphFactory, PropertiesKeyValueGraphFactory

public abstract class AbstractKeyValueGraphFactory
extends AbstractGraphFactory
implements GraphFactory

GraphFactory that creates key/value graphs.

Author:

markus

Constructor Summary

Constructors

Constructor and Description
AbstractKeyValueGraphFactory(boolean supportGetContextNodes, boolean supportGetRelations)

Method Summary

Modifier and Type	Method and Description
boolean	getSupportGetContextNodes()
boolean	getSupportGetRelations()
Graph	openGraph(String identifier) Opens a graph.
protected abstract KeyValueStore	openKeyValueStore(String identifier) This must be overridden by subclasses to instantiate the key/value store.
void	setSupportGetContextNodes(boolean supportGetContextNodes)
void	setSupportGetRelations(boolean supportGetRelations)

Methods inherited from class xdi2.core.impl.AbstractGraphFactory

loadGraph, loadGraph, loadGraph, openGraph, parseGraph, parseGraph, parseGraph

Methods inherited from class java.lang.Object

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

Methods inherited from interface xdi2.core.GraphFactory

loadGraph, loadGraph, loadGraph, openGraph, parseGraph, parseGraph, parseGraph

Constructor Detail

AbstractKeyValueGraphFactory

public AbstractKeyValueGraphFactory(boolean supportGetContextNodes,
                                    boolean supportGetRelations)

Method Detail

openGraph

public final Graph openGraph(String identifier)
                      throws IOException

Description copied from interface: GraphFactory

Opens a graph.

Specified by:

openGraph in interface GraphFactory

Parameters:

identifier - An optional identifier to distinguish graphs from one another.

Returns:

An already existing or new graph.

Throws:

IOException

openKeyValueStore

protected abstract KeyValueStore openKeyValueStore(String identifier)
                                            throws IOException

This must be overridden by subclasses to instantiate the key/value store.

Parameters:

identifier - An optional identifier to distinguish key/value stores from one another.

Throws:

IOException

getSupportGetContextNodes

public boolean getSupportGetContextNodes()

setSupportGetContextNodes

public void setSupportGetContextNodes(boolean supportGetContextNodes)

getSupportGetRelations

public boolean getSupportGetRelations()

setSupportGetRelations

public void setSupportGetRelations(boolean supportGetRelations)