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java.lang.Objectcom.hp.hpl.jena.graph.query.SimpleQueryHandler
de.fuberlin.wiwiss.d2rq.jena.D2RQQueryHandler
public class D2RQQueryHandler
An implementation of Jena's QueryHandler
interface
that answers BGP queries on behalf of a GraphD2RQ
.
This is here for Jena compatibility, and is not involved
in answering SPARQL queries through ARQ. It uses the
QueryEngineD2RQ
to answer BGP queries and wraps
it into the expected interface.
Field Summary |
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Fields inherited from class com.hp.hpl.jena.graph.query.SimpleQueryHandler |
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graph |
Constructor Summary | |
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D2RQQueryHandler(GraphD2RQ graph)
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Method Summary | |
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com.hp.hpl.jena.graph.query.BindingQueryPlan |
prepareBindings(com.hp.hpl.jena.graph.query.Query q,
Node[] variables)
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com.hp.hpl.jena.graph.query.TreeQueryPlan |
prepareTree(Graph pattern)
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Methods inherited from class com.hp.hpl.jena.graph.query.SimpleQueryHandler |
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containsNode, objectsFor, objectsFor, patternStage, predicatesFor, predicatesFor, subjectsFor, subjectsFor |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public D2RQQueryHandler(GraphD2RQ graph)
Method Detail |
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public com.hp.hpl.jena.graph.query.TreeQueryPlan prepareTree(Graph pattern)
prepareTree
in interface com.hp.hpl.jena.graph.query.QueryHandler
prepareTree
in class com.hp.hpl.jena.graph.query.SimpleQueryHandler
public com.hp.hpl.jena.graph.query.BindingQueryPlan prepareBindings(com.hp.hpl.jena.graph.query.Query q, Node[] variables)
prepareBindings
in interface com.hp.hpl.jena.graph.query.QueryHandler
prepareBindings
in class com.hp.hpl.jena.graph.query.SimpleQueryHandler
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