com.hp.hpl.jena.sparql.core

Class DatasetGraphReadOnly

java.lang.Object

com.hp.hpl.jena.sparql.core.DatasetGraphWrapper

com.hp.hpl.jena.sparql.core.DatasetGraphReadOnly

All Implemented Interfaces:

DatasetGraph, Closeable

Direct Known Subclasses:

DynamicDatasets.DynamicDatasetGraph

public class DatasetGraphReadOnly
extends DatasetGraphWrapper

Read-only view of a DatasetGraph. Assumes the dataset underneath isn't changing.

Constructor Summary

Constructors

Constructor and Description
DatasetGraphReadOnly(DatasetGraph dsg)

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Quad quad) Add a quad
void	addGraph(Node graphName, Graph graph) Add the given graph to the dataset.
void	delete(Quad quad) Delete a quad
void	deleteAny(Node g, Node s, Node p, Node o) Delete any quads matching the pattern
Graph	getDefaultGraph() Get the default graph as a Jena Graph
Graph	getGraph(Node graphNode) Get the graph named by graphNode : returns null on no graph NB Whether a dataset contains a graph if there are no triples is not defined - see the specifc implementation.
void	removeGraph(Node graphName) Remove all data associated with the named graph
void	setDefaultGraph(Graph g) Set the default graph.

Methods inherited from class com.hp.hpl.jena.sparql.core.DatasetGraphWrapper

add, close, contains, contains, containsGraph, delete, find, find, find, findNG, getContext, getLock, isEmpty, listGraphNodes, size, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

DatasetGraphReadOnly

public DatasetGraphReadOnly(DatasetGraph dsg)

Method Detail

getDefaultGraph

public Graph getDefaultGraph()

Description copied from interface: DatasetGraph

Get the default graph as a Jena Graph

Specified by:

getDefaultGraph in interface DatasetGraph

Overrides:

getDefaultGraph in class DatasetGraphWrapper

getGraph

public Graph getGraph(Node graphNode)

Description copied from interface: DatasetGraph

Get the graph named by graphNode : returns null on no graph NB Whether a dataset contains a graph if there are no triples is not defined - see the specifc implementation. Some datasets are "open" - they have all graphs even if no triples,

Specified by:

getGraph in interface DatasetGraph

Overrides:

getGraph in class DatasetGraphWrapper

setDefaultGraph

public void setDefaultGraph(Graph g)

Description copied from interface: DatasetGraph

Set the default graph. Set the active graph if it was null. This replaces the contents default graph, not merge data into it. Do not assume that the same object is returned by DatasetGraph.getDefaultGraph()

Specified by:

setDefaultGraph in interface DatasetGraph

Overrides:

setDefaultGraph in class DatasetGraphWrapper

addGraph

public void addGraph(Node graphName,
            Graph graph)

Description copied from interface: DatasetGraph

Add the given graph to the dataset. Replaces any existing data for the named graph; to add data, get the graph and add triples to it, or add quads to the dataset. Do not assume that the same Java object is returned by DatasetGraph.getGraph(com.hp.hpl.jena.graph.Node)

Specified by:

addGraph in interface DatasetGraph

Overrides:

addGraph in class DatasetGraphWrapper

removeGraph

public void removeGraph(Node graphName)

Description copied from interface: DatasetGraph

Remove all data associated with the named graph

Specified by:

removeGraph in interface DatasetGraph

Overrides:

removeGraph in class DatasetGraphWrapper

add

public void add(Quad quad)

Description copied from interface: DatasetGraph

Add a quad

Specified by:

add in interface DatasetGraph

Overrides:

add in class DatasetGraphWrapper

delete

public void delete(Quad quad)

Description copied from interface: DatasetGraph

Delete a quad

Specified by:

delete in interface DatasetGraph

Overrides:

delete in class DatasetGraphWrapper

deleteAny

public void deleteAny(Node g,
             Node s,
             Node p,
             Node o)

Description copied from interface: DatasetGraph

Delete any quads matching the pattern

Specified by:

deleteAny in interface DatasetGraph

Overrides:

deleteAny in class DatasetGraphWrapper