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java.lang.Objectcom.hp.hpl.jena.sparql.core.DatasetGraphBase
public abstract class DatasetGraphBase
DatasetGraph framework : readonly dataset need only provide find(g,s,p,o), getGraph() and getDefaultGraph() although it may wish to override other operations and do better.
Other implementations include:
DatasetGraphBase
that adds an implementation of find based on default / named graphs.DatasetGraphCollection
that adds mutating quad operations mapped to a collection of graphs.DatasetGraphQuad
that maps graph operations to a quad view.
Method Summary | |
---|---|
void |
add(com.hp.hpl.jena.graph.Node g,
com.hp.hpl.jena.graph.Node s,
com.hp.hpl.jena.graph.Node p,
com.hp.hpl.jena.graph.Node o)
Add a quad |
void |
add(Quad quad)
Add a quad |
void |
addGraph(com.hp.hpl.jena.graph.Node graphName,
com.hp.hpl.jena.graph.Graph graph)
Add the given graph to the dataset. |
void |
close()
Close the dataset |
boolean |
contains(com.hp.hpl.jena.graph.Node g,
com.hp.hpl.jena.graph.Node s,
com.hp.hpl.jena.graph.Node p,
com.hp.hpl.jena.graph.Node o)
Test whether the dataset (including default graph) contains a quad - may include wildcards, Node.ANY or null |
boolean |
contains(Quad quad)
Test whether the dataset contains a quad (including default graph)- may include wildcards, Node.ANY or null |
boolean |
containsGraph(com.hp.hpl.jena.graph.Node graphNode)
|
void |
delete(com.hp.hpl.jena.graph.Node g,
com.hp.hpl.jena.graph.Node s,
com.hp.hpl.jena.graph.Node p,
com.hp.hpl.jena.graph.Node o)
Delete a quad |
void |
delete(Quad quad)
Delete a quad |
void |
deleteAny(com.hp.hpl.jena.graph.Node g,
com.hp.hpl.jena.graph.Node s,
com.hp.hpl.jena.graph.Node p,
com.hp.hpl.jena.graph.Node o)
Delete any quads matching the pattern |
Iterator<Quad> |
find()
Iterate over all quads in the dataset graph |
Iterator<Quad> |
find(Quad quad)
Find matching quads in the dataset - may include wildcards, Node.ANY or null |
Context |
getContext()
Get the context associated with this object - may be null |
abstract com.hp.hpl.jena.graph.Graph |
getDefaultGraph()
Get the default graph as a Jena Graph |
abstract com.hp.hpl.jena.graph.Graph |
getGraph(com.hp.hpl.jena.graph.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. |
com.hp.hpl.jena.shared.Lock |
getLock()
Return a lock for the dataset to help with concurrency control |
boolean |
isEmpty()
Test whether the dataset is empty |
void |
removeGraph(com.hp.hpl.jena.graph.Node graphName)
Remove all data associated with the named graph |
void |
setDefaultGraph(com.hp.hpl.jena.graph.Graph g)
Set the default graph. |
long |
size()
Get the size (number of named graphs) - may be -1 for unknown |
String |
toString()
|
Methods inherited from class java.lang.Object |
---|
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface com.hp.hpl.jena.sparql.core.DatasetGraph |
---|
find, findNG, listGraphNodes |
Method Detail |
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public boolean containsGraph(com.hp.hpl.jena.graph.Node graphNode)
containsGraph
in interface DatasetGraph
public abstract com.hp.hpl.jena.graph.Graph getDefaultGraph()
DatasetGraph
getDefaultGraph
in interface DatasetGraph
public abstract com.hp.hpl.jena.graph.Graph getGraph(com.hp.hpl.jena.graph.Node graphNode)
DatasetGraph
getGraph
in interface DatasetGraph
public void addGraph(com.hp.hpl.jena.graph.Node graphName, com.hp.hpl.jena.graph.Graph graph)
DatasetGraph
DatasetGraph.getGraph(com.hp.hpl.jena.graph.Node)
addGraph
in interface DatasetGraph
public void removeGraph(com.hp.hpl.jena.graph.Node graphName)
DatasetGraph
removeGraph
in interface DatasetGraph
public void setDefaultGraph(com.hp.hpl.jena.graph.Graph g)
DatasetGraph
DatasetGraph.getDefaultGraph()
setDefaultGraph
in interface DatasetGraph
public void add(Quad quad)
DatasetGraph
add
in interface DatasetGraph
public void delete(Quad quad)
DatasetGraph
delete
in interface DatasetGraph
public void add(com.hp.hpl.jena.graph.Node g, com.hp.hpl.jena.graph.Node s, com.hp.hpl.jena.graph.Node p, com.hp.hpl.jena.graph.Node o)
DatasetGraph
add
in interface DatasetGraph
public void delete(com.hp.hpl.jena.graph.Node g, com.hp.hpl.jena.graph.Node s, com.hp.hpl.jena.graph.Node p, com.hp.hpl.jena.graph.Node o)
DatasetGraph
delete
in interface DatasetGraph
public void deleteAny(com.hp.hpl.jena.graph.Node g, com.hp.hpl.jena.graph.Node s, com.hp.hpl.jena.graph.Node p, com.hp.hpl.jena.graph.Node o)
DatasetGraph
deleteAny
in interface DatasetGraph
public Iterator<Quad> find()
DatasetGraph
find
in interface DatasetGraph
public Iterator<Quad> find(Quad quad)
DatasetGraph
find
in interface DatasetGraph
Graph.find(TripleMatch)
public boolean contains(Quad quad)
DatasetGraph
contains
in interface DatasetGraph
public boolean contains(com.hp.hpl.jena.graph.Node g, com.hp.hpl.jena.graph.Node s, com.hp.hpl.jena.graph.Node p, com.hp.hpl.jena.graph.Node o)
DatasetGraph
contains
in interface DatasetGraph
public boolean isEmpty()
DatasetGraph
isEmpty
in interface DatasetGraph
public long size()
DatasetGraph
size
in interface DatasetGraph
public com.hp.hpl.jena.shared.Lock getLock()
DatasetGraph
getLock
in interface DatasetGraph
Lock
public Context getContext()
DatasetGraph
getContext
in interface DatasetGraph
public void close()
DatasetGraph
close
in interface DatasetGraph
close
in interface Closeable
public String toString()
toString
in class Object
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