org.apache.jena.graph.impl

Class SimpleGraphMaker

java.lang.Object

org.apache.jena.graph.impl.BaseGraphMaker

org.apache.jena.graph.impl.SimpleGraphMaker

All Implemented Interfaces:

GraphMaker

public class SimpleGraphMaker
extends BaseGraphMaker

A SimpleGraphFactory produces memory-based graphs and records them in a local map.

Constructor Summary

Constructors

Constructor and Description
SimpleGraphMaker() Initialise a SimpleGraphMaker with reification style Minimal

Method Summary

Modifier and Type	Method and Description
void	close() Close this factory - we choose to do nothing.
Graph	create()
Graph	createGraph(String name, boolean strict) Create a graph and record it with the given name in the local map.
boolean	hasGraph(String name) Return true iff we have a graph with the given name
ExtendedIterator<String>	listGraphs() Answer an [extended] iterator where each element is the name of a graph in the maker, and the complete sequence exhausts the set of names.
Graph	openGraph() Answer the default graph of this GraphMaker, if it has one.
Graph	openGraph(String name, boolean strict) Open (aka find) a graph with the given name in the local map.
void	removeGraph(String name) Remove the mapping from name to any graph from the local map.

Methods inherited from class org.apache.jena.graph.impl.BaseGraphMaker

createGraph, createGraph, getGraph, openGraph

Methods inherited from class java.lang.Object

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

Constructor Detail

SimpleGraphMaker

public SimpleGraphMaker()

Initialise a SimpleGraphMaker with reification style Minimal

Method Detail

create

public Graph create()

createGraph

public Graph createGraph(String name,
                         boolean strict)

Create a graph and record it with the given name in the local map.

Parameters:

name - the name to give to the new graph

strict - true to cause existing bindings to throw an exception

openGraph

public Graph openGraph(String name,
                       boolean strict)

Open (aka find) a graph with the given name in the local map.

Parameters:

name - the name of the graph to find and return

strict - false to create a new one if one doesn't already exist

openGraph

public Graph openGraph()

Description copied from interface: GraphMaker

Answer the default graph of this GraphMaker, if it has one. If not, throw an exception.

Specified by:

openGraph in interface GraphMaker

Overrides:

openGraph in class BaseGraphMaker

removeGraph

public void removeGraph(String name)

Remove the mapping from name to any graph from the local map.

Parameters:

name - the name to disassociate

hasGraph

public boolean hasGraph(String name)

Return true iff we have a graph with the given name

Parameters:

name - the name of the graph to look for

Returns:

true iff there's a graph with that name

close

public void close()

Close this factory - we choose to do nothing.

listGraphs

public ExtendedIterator<String> listGraphs()

Description copied from interface: GraphMaker

Answer an [extended] iterator where each element is the name of a graph in the maker, and the complete sequence exhausts the set of names. No particular order is expected from the list.

Returns:

an extended iterator over the names of graphs known to this Maker.