com.hp.hpl.jena.sparql.core
Class DatasetGraphAltDefaultGraph

java.lang.Object
  com.hp.hpl.jena.sparql.core.DatasetGraphBase
      com.hp.hpl.jena.sparql.core.DatasetGraphBaseFind
          com.hp.hpl.jena.sparql.core.DatasetGraphCollection
              com.hp.hpl.jena.sparql.core.DatasetGraphAltDefaultGraph

All Implemented Interfaces:

DatasetGraph, Closeable

public class DatasetGraphAltDefaultGraph
extends DatasetGraphCollection

DatasetGraph that switch teh default graph to another graph. This different graph can be one of the underlying dataset or a completely unconnected graph.

Constructor Summary

DatasetGraphAltDefaultGraph(DatasetGraph dsg, Graph defaultGraph)

Method Summary

void	addGraph(Node graphName, Graph graph) Add the given graph to the dataset.
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.
Iterator<Node>	listGraphNodes() Iterate over all names of named graphs
void	removeGraph(Node graphName) Remove all data associated with the named graph

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

add, delete

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

find, findNG

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

add, close, contains, contains, containsGraph, delete, deleteAny, find, find, getContext, getLock, isEmpty, setDefaultGraph, size, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DatasetGraphAltDefaultGraph

public DatasetGraphAltDefaultGraph(DatasetGraph dsg,
                                   Graph defaultGraph)

Method Detail

listGraphNodes

public Iterator<Node> listGraphNodes()

Description copied from interface: DatasetGraph

Iterate over all names of named graphs

Specified by:

listGraphNodes in interface DatasetGraph

Specified by:

listGraphNodes in class DatasetGraphCollection

getDefaultGraph

public Graph getDefaultGraph()

Description copied from interface: DatasetGraph

Get the default graph as a Jena Graph

Specified by:

getDefaultGraph in interface DatasetGraph

Specified by:

getDefaultGraph in class DatasetGraphBase

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

Specified by:

getGraph in class DatasetGraphBase

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

Specified by:

addGraph in class DatasetGraphBase

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

Specified by:

removeGraph in class DatasetGraphBase