com.bigdata.rdf.graph.impl.ram

Class RAMGraphLoader

java.lang.Object

com.bigdata.rdf.graph.util.GraphLoader

com.bigdata.rdf.graph.impl.ram.RAMGraphLoader

public class RAMGraphLoader
extends GraphLoader

TODO Blank nodes have global scope. We should have a bnode resolution scope to the source document to be consistent with RDF semantics. This could be imposed through the RAMStatementHandler. TODO It is not possible to parallelize the load since the mutation operations on the RAMGASEngine.RAMGraph assume a single writer (there is no built in synchronization). This makes load performance quite slow.

Author:

Bryan Thompson

Nested Class Summary

Nested classes/interfaces inherited from class com.bigdata.rdf.graph.util.GraphLoader

GraphLoader.AddStatementHandler

Constructor Summary

Constructors

Constructor and Description
RAMGraphLoader(RAMGASEngine.RAMGraph g)

Method Summary

Methods

Modifier and Type	Method and Description
protected org.openrdf.model.ValueFactory	getValueFactory() Return the ValueFactory that will be set on the RDFParser .
protected GraphLoader.AddStatementHandler	newStatementHandler() Factory for the helper class that adds statements to the target graph.

Methods inherited from class com.bigdata.rdf.graph.util.GraphLoader

loadGraph, loadGraph

Methods inherited from class java.lang.Object

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

Constructor Detail

RAMGraphLoader

public RAMGraphLoader(RAMGASEngine.RAMGraph g)

Method Detail

newStatementHandler

protected GraphLoader.AddStatementHandler newStatementHandler()

Description copied from class: GraphLoader

Factory for the helper class that adds statements to the target graph.

Specified by:

newStatementHandler in class GraphLoader

getValueFactory

protected org.openrdf.model.ValueFactory getValueFactory()

Description copied from class: GraphLoader

Return the ValueFactory that will be set on the RDFParser . This is necessary for the RDR parser.

Specified by:

getValueFactory in class GraphLoader