org.apache.jena.graph.impl

Class BaseGraphMaker

java.lang.Object

org.apache.jena.graph.impl.BaseGraphMaker

All Implemented Interfaces:

GraphMaker

Direct Known Subclasses:

SimpleGraphMaker

public abstract class BaseGraphMaker
extends Object
implements GraphMaker

This base class provides convenience functions for the three "usual" graph makers and a place to hold the reification style for the graphs it constructs.

Constructor Summary

Constructors

Constructor and Description
BaseGraphMaker() Construct the base level of a graph maker.

Method Summary

Modifier and Type	Method and Description
Graph	createGraph() Make a fresh anonymous graph.
Graph	createGraph(String name) A non-strict create.
Graph	getGraph() Answer the default graph for this maker.
Graph	openGraph() Answer the default graph of this GraphMaker, if it has one.
Graph	openGraph(String name) A non-strict open.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.jena.graph.GraphMaker

close, createGraph, hasGraph, listGraphs, openGraph, removeGraph

Constructor Detail

BaseGraphMaker

public BaseGraphMaker()

Construct the base level of a graph maker.

Method Detail

getGraph

public Graph getGraph()

Answer the default graph for this maker. If we haven't already made it, make it now.

Specified by:

getGraph in interface GraphMaker

Returns:

the same default graph each time

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

createGraph

public Graph createGraph()

Make a fresh anonymous graph.

Specified by:

createGraph in interface GraphMaker

Returns:

a fresh anonymous graph

createGraph

public Graph createGraph(String name)

A non-strict create.

Specified by:

createGraph in interface GraphMaker

See Also:

GraphMaker.createGraph(java.lang.String)

openGraph

public Graph openGraph(String name)

A non-strict open.

Specified by:

openGraph in interface GraphMaker

See Also:

GraphMaker.openGraph(java.lang.String)