de.fuberlin.wiwiss.d2rq.engine

Class QueryEngineD2RQ

java.lang.Object

com.hp.hpl.jena.sparql.engine.QueryEngineBase

com.hp.hpl.jena.sparql.engine.main.QueryEngineMain

de.fuberlin.wiwiss.d2rq.engine.QueryEngineD2RQ

All Implemented Interfaces:

OpEval, org.openjena.atlas.lib.Closeable

public class QueryEngineD2RQ
extends QueryEngineMain

An ARQ query engine for D2RQ-mapped graphs. Allows evaluation of SPARQL queries (or programmatically created operator trees) over a D2RQ-mapped graph.

Author:

Richard Cyganiak (richard@cyganiak.de), Herwig Leimer

Field Summary

Fields inherited from class com.hp.hpl.jena.sparql.engine.main.QueryEngineMain

SUBSTITUE

Fields inherited from class com.hp.hpl.jena.sparql.engine.QueryEngineBase

context, dataset, queryEngineInfo

Constructor Summary

Constructors

Constructor and Description
QueryEngineD2RQ(GraphD2RQ graph, Op op, Binding input, Context context)
QueryEngineD2RQ(GraphD2RQ graph, Query query)
QueryEngineD2RQ(GraphD2RQ graph, Query query, Binding input, Context context)

Method Summary

Methods

Modifier and Type	Method and Description
static QueryEngineFactory	getFactory()
protected Op	modifyOp(Op op)
static void	register()
static void	unregister()

Methods inherited from class com.hp.hpl.jena.sparql.engine.main.QueryEngineMain

eval, minimalModifyOp

Methods inherited from class com.hp.hpl.jena.sparql.engine.QueryEngineBase

close, createOp, createPlan, evaluate, getOp, getPlan, getStartBinding, setOp

Methods inherited from class java.lang.Object

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

Constructor Detail

QueryEngineD2RQ

public QueryEngineD2RQ(GraphD2RQ graph,
               Query query)

QueryEngineD2RQ

public QueryEngineD2RQ(GraphD2RQ graph,
               Query query,
               Binding input,
               Context context)

QueryEngineD2RQ

public QueryEngineD2RQ(GraphD2RQ graph,
               Op op,
               Binding input,
               Context context)

Method Detail

modifyOp

protected Op modifyOp(Op op)

Overrides:

modifyOp in class QueryEngineMain

getFactory

public static QueryEngineFactory getFactory()

register

public static void register()

unregister

public static void unregister()