Package com.hp.hpl.jena.sparql.engine

Examples of com.hp.hpl.jena.sparql.engine.QueryEngineFactory

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    {
        if ( context == null )
            context = new Context(ARQ.getContext()) ;
        if ( input == null )
            input = BindingRoot.create() ;
        QueryEngineFactory f = findFactory(query, dataset, context) ;
        if ( f == null )
            return null ;
        return f.create(query, dataset, input, context) ;
    }
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        if ( context == null )
            context = ARQ.getContext();  // .copy done in QueryExecutionBase -> Context.setupContext.
        DatasetGraph dsg = null ;
        if ( dataset != null )
            dsg = dataset.asDatasetGraph() ;
        QueryEngineFactory f = findFactory(query, dsg, context);
        if ( f == null )
        {
            Log.warn(QueryExecutionFactory.class, "Failed to find a QueryEngineFactory for query: "+query) ;
            return null ;
        }
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    {
        if ( context == null )
            context = new Context(ARQ.getContext()) ;
        if ( input == null )
            input = BindingRoot.create() ;
        QueryEngineFactory f = findFactory(query, dataset, context) ;
        if ( f == null )
            return null ;
        return f.create(query, dataset, input, context) ;
    }
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        if ( context == null )
            context = ARQ.getContext();  // .copy done in QueryExecutionBase -> Context.setupContext.
        DatasetGraph dsg = null ;
        if ( dataset != null )
            dsg = dataset.asDatasetGraph() ;
        QueryEngineFactory f = findFactory(query, dsg, context);
        if ( f == null )
        {
            Log.warn(QueryExecutionFactory.class, "Failed to find a QueryEngineFactory for query: "+query) ;
            return null ;
        }
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    // ModQueryOut
       
    public static void printPlan(Query query, QueryExecution qe)
    {
        QueryEngineFactory f = QueryEngineRegistry.findFactory(query, qe.getDataset().asDatasetGraph(), ARQ.getContext()) ;
        if ( f == null )
            System.err.println("printPlan: Unknown engine type: "+Utils.className(qe)) ;
       
        Plan plan = f.create(query, qe.getDataset().asDatasetGraph(), BindingRoot.create(), ARQ.getContext()) ;
        SerializationContext sCxt = new SerializationContext(query) ;
        IndentedWriter out = IndentedWriter.stdout ;
   
        plan.output(out, sCxt) ;
        out.flush();
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            rs1 = ResultSetFactory.makeRewindable(rs) ;
            expectedLabel = "Results file" ;
        }
        else
        {
            QueryEngineFactory f = QueryEngineRef.getFactory() ;
            QueryExecution qExec1 = new QueryExecutionBase(query, ds, null, f) ;
            rs1 = ResultSetFactory.makeRewindable(qExec1.execSelect()) ;
            qExec1.close() ;
            expectedLabel = "Standard engine" ;
        }
       
        // ---- Second, execute in DB

        QueryEngineFactory f2 = QueryEngineSDB.getFactory() ;
        ds = DatasetStore.create(store) ;
        QueryExecution qExec2 = new QueryExecutionBase(query, ds, null, f2) ;
       
        try {
            SDBConnection.logSQLExceptions = true ;
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            rs1 = ResultSetFactory.makeRewindable(results.getResultSet()) ;
            expectedLabel = "Results file" ;
        }
        else
        {
            QueryEngineFactory f = QueryEngineRef.getFactory() ;
            QueryExecution qExec1 = new QueryExecutionBase(query, ds, null, f) ;
            rs1 = ResultSetFactory.makeRewindable(qExec1.execSelect()) ;
            qExec1.close() ;
            expectedLabel = "Standard engine" ;
        }
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            rs1 = ResultSetFactory.makeRewindable(results.getResultSet()) ;
            expectedLabel = "Results file" ;
        }
        else
        {
            QueryEngineFactory f = QueryEngineRef.getFactory() ;
            QueryExecution qExec1 = new QueryExecutionBase(query, ds, null, f) ;
            rs1 = ResultSetFactory.makeRewindable(qExec1.execSelect()) ;
            qExec1.close() ;
            expectedLabel = "Standard engine" ;
        }
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            rs1 = ResultSetFactory.makeRewindable(rs) ;
            expectedLabel = "Results file" ;
        }
        else
        {
            QueryEngineFactory f = QueryEngineRef.getFactory() ;
            QueryExecution qExec1 = new QueryExecutionBase(query, ds, null, f) ;
            rs1 = ResultSetFactory.makeRewindable(qExec1.execSelect()) ;
            qExec1.close() ;
            expectedLabel = "Standard engine" ;
        }
       
        // ---- Second, execute in DB

        QueryEngineFactory f2 = QueryEngineSDB.getFactory() ;
        ds = DatasetStore.create(store) ;
        QueryExecution qExec2 = new QueryExecutionBase(query, ds, null, f2) ;
       
        try {
            SDBConnection.logSQLExceptions = true ;
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    {
        if ( context == null )
            context = new Context(ARQ.getContext()) ;
        if ( input == null )
            input = BindingRoot.create() ;
        QueryEngineFactory f = findFactory(query, dataset, context) ;
        if ( f == null )
            return null ;
        return f.create(query, dataset, input, context) ;
    }
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Related Classes of com.hp.hpl.jena.sparql.engine.QueryEngineFactory

  • com.hp.hpl.jena.query.QueryExecutionFactory
  • com.hp.hpl.jena.sdb.test.junit.QueryTestSDB
  • com.hp.hpl.jena.sparql.algebra.Algebra
  • com.hp.hpl.jena.sparql.util.QueryOutputUtils
  • com.hp.hpl.jena.tdb.junit.QueryTestTDB
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