org.apache.jena.sparql.core

Class DatasetGraphViewGraphs

java.lang.Object

org.apache.jena.sparql.core.DatasetGraphWrapper

org.apache.jena.sparql.core.DatasetGraphViewGraphs

All Implemented Interfaces:

org.apache.jena.atlas.lib.Closeable, org.apache.jena.atlas.lib.Sync, DatasetGraph, Transactional

public class DatasetGraphViewGraphs
extends DatasetGraphWrapper

Wrap a DatasetGraph with implementations of DatasetGraph.getDefaultGraph() and DatasetGraph.getGraph(org.apache.jena.graph.Node) that use the view graph mechanism.

See Also:

GraphView

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.jena.sparql.core.Transactional

Transactional.Promote

Constructor Summary

Constructors

Constructor and Description
DatasetGraphViewGraphs(DatasetGraph dsg)

Method Summary

Modifier and Type	Method and Description
Graph	getDefaultGraph() Get the default graph as a Jena Graph
Graph	getGraph(Node graphNode) Get the graph named by graphNode : returns null when there is no such graph.

Methods inherited from class org.apache.jena.sparql.core.DatasetGraphWrapper

abort, add, add, addGraph, begin, begin, begin, clear, close, commit, contains, contains, containsGraph, delete, delete, deleteAny, end, find, find, find, findNG, getBase, getBaseForQuery, getContext, getLock, getUnionGraph, getWrapped, isEmpty, isInTransaction, listGraphNodes, promote, promote, removeGraph, setDefaultGraph, size, supportsTransactionAbort, supportsTransactions, sync, toString, transactionMode, transactionType

Methods inherited from class java.lang.Object

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

Constructor Detail

DatasetGraphViewGraphs

public DatasetGraphViewGraphs(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 when there is no such graph. NB Whether a dataset contains a graph if there are no triples is not defined - see the specific implementation. Some datasets are "open" - they have all graphs even if no triples.

Specified by:

getGraph in interface DatasetGraph

Overrides:

getGraph in class DatasetGraphWrapper