Package com.hp.hpl.jena.query

Examples of com.hp.hpl.jena.query.ResultSetRewindable

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            // A ResultSet is an iterator - any query solutions returned by .next()
            // are not accessible again.
            // Create a ResultSetRewindable that can be reset to the beginning.
            // Do before first use.
           
            ResultSetRewindable rewindable = ResultSetFactory.makeRewindable(qexec.execSelect()) ;
            ResultSetFormatter.out(rewindable) ;
            rewindable.reset() ;
            ResultSetFormatter.out(rewindable) ;
        }
        finally
        {
            // QueryExecution objects should be closed to free any system resources
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        ResultSetFormatter.outputAsCSV(out, rs) ;
    }
   
    private static void areIsomorphic(ResultSet x, ResultSet y)
    {
        ResultSetRewindable rs1 = ResultSetFactory.makeRewindable(x) ;
        ResultSetRewindable rs2 = ResultSetFactory.makeRewindable(y) ;
//        System.out.println(ResultSetFormatter.asText(rs1));
//        System.out.println();
//        System.out.println(ResultSetFormatter.asText(rs2));
//        rs1.reset();
//        rs2.reset();
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            // A ResultSet is an iterator - any query solutions returned by .next()
            // are not accessible again.
            // Create a ResultSetRewindable that can be reset to the beginning.
            // Do before first use.
           
            ResultSetRewindable rewindable = ResultSetFactory.makeRewindable(qexec.execSelect()) ;
            ResultSetFormatter.out(rewindable) ;
            rewindable.reset() ;
            ResultSetFormatter.out(rewindable) ;
        }
        finally
        {
            // QueryExecution objects should be closed to free any system resources
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            // A ResultSet is an iterator - any query solutions returned by .next()
            // are not accessible again.
            // Create a ResultSetRewindable that can be reset to the beginning.
            // Do before first use.
           
            ResultSetRewindable rewindable = ResultSetFactory.makeRewindable(qexec.execSelect()) ;
            ResultSetFormatter.out(rewindable) ;
            rewindable.reset() ;
            ResultSetFormatter.out(rewindable) ;
        }
        finally
        {
            // QueryExecution objects should be closed to free any system resources
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        //return equivalent(convert(rs1), convert(rs2), new BNodeIso(NodeUtils.sameValue)) ;
       
        // Add the isomprohism test
        // Imperfect - need by-value and isomorphism - but this covers test suite needs.

        ResultSetRewindable rs1a = ResultSetFactory.makeRewindable(rs1) ;
        ResultSetRewindable rs2a = ResultSetFactory.makeRewindable(rs2) ;
       
        if ( equivalent(convert(rs1a), convert(rs2a), new BNodeIso(NodeUtils.sameValue)) )
            return true ;
        rs1a.reset() ;   
        rs2a.reset() ;
        return isomorphic(rs1, rs2) ;
    }
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    public static boolean equalsByTerm(ResultSet rs1, ResultSet rs2)
    {
        if ( ! compareHeader(rs1, rs2) ) return false ;

        //return equivalent(convert(rs1), convert(rs2), new BNodeIso(NodeUtils.sameTerm)) ;
        ResultSetRewindable rs1a = ResultSetFactory.makeRewindable(rs1) ;
        ResultSetRewindable rs2a = ResultSetFactory.makeRewindable(rs2) ;
       
        if ( equivalent(convert(rs1a), convert(rs2a), new BNodeIso(NodeUtils.sameTerm)) )
            return true ;
        rs1a.reset() ;   
        rs2a.reset() ;
        return isomorphic(rs1, rs2) ;
    }
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        {
            pw.println("==== No variables ====") ;
            //return ;
        }

        ResultSetRewindable resultSetRewindable = ResultSetFactory.makeRewindable(resultSet) ;
       
        int numCols = resultSetRewindable.getResultVars().size() ;
        int[] colWidths = colWidths(resultSetRewindable) ;

        String row[] = new String[numCols] ;
        int lineWidth = 0 ;
        for ( int col = 0 ; col < numCols ; col++ )
        {
            String rVar = resultSet.getResultVars().get(col) ;
            row[col] = rVar ;
            lineWidth += colWidths[col] ;
            if ( col > 0 )
                lineWidth += colSep.length() ;
        }
        if ( colStart != null )
            lineWidth += colStart.length() ;
        if ( colEnd != null )
            lineWidth += colEnd.length() ;

        for ( int i = 0 ; i < lineWidth ; i++ )
            pw.print('-') ;
        pw.println() ;
       
        printRow(pw, row, colWidths, colStart, colSep, colEnd) ;

        for ( int i = 0 ; i < lineWidth ; i++ )
            pw.print('=') ;
        pw.println() ;

        for ( ; resultSetRewindable.hasNext() ; )
        {
            QuerySolution rBind = resultSetRewindable.nextSolution() ;
            for ( int col = 0 ; col < numCols ; col++ )
            {
                String rVar = resultSet.getResultVars().get(col) ;
                row[col] = this.getVarValueAsString(rBind, rVar );
            }
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        // ---- First, get the expected results by executing in-memory or from a results file.
       
        ResultSet rs = null ;
        if ( item.getResults() != null )
            rs = item.getResults().getResultSet() ;
        ResultSetRewindable rs1 = null ;
        String expectedLabel = "" ;
        if ( rs != null )
        {
            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 ;
            rs = qExec2.execSelect() ;
           
            ResultSetRewindable rs2 = ResultSetFactory.makeRewindable(rs) ;
            boolean b = ResultSetCompare.equalsByTerm(rs1, rs2) ;
            if ( !b )
            {
                rs1.reset() ;
                rs2.reset() ;
                System.out.println("------------------- "+this.getName());
                System.out.printf("**** Expected (%s)", expectedLabel) ;
                ResultSetFormatter.out(System.out, rs1) ;
                System.out.println("**** Got (SDB engine)") ;
                ResultSetFormatter.out(System.out, rs2) ;
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    private static void equals(ResultSet rs1, ResultSet rs2)
    { same(rs1, rs2, true) ; }
   
    private static void same(ResultSet rs1, ResultSet rs2, boolean result)
    {
        ResultSetRewindable rsw1 = ResultSetFactory.makeRewindable(rs1) ;
        ResultSetRewindable rsw2 = ResultSetFactory.makeRewindable(rs2) ;
        boolean b = ResultSetCompare.equalsByValue(rsw1, rsw2) ;
        if ( b != result)
        {
            System.out.println("Different: ") ;
            rsw1.reset() ;
            rsw2.reset() ;
            ResultSetFormatter.out(rsw1) ;
            ResultSetFormatter.out(rsw2) ;
            System.out.println() ;
        }
       
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        Dataset ds = DatasetFactory.create(defaultGraphURIs, namedGraphURIs) ;
        ARQ.getContext().set(ARQ.strictGraph, oldValue) ;
       
        // ---- First, get the expected results by executing in-memory or from a results file.
       
        ResultSetRewindable rs1 = null ;
        String expectedLabel = "" ;
        if ( results != null )
        {
            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" ;
        }
       
        // ---- Second, execute in persistent graph

        Dataset ds2 = dataset ; //DatasetFactory.create(model) ;
        QueryExecution qExec2 = QueryExecutionFactory.create(query, ds2) ;
        ResultSet rs = qExec2.execSelect() ;
        ResultSetRewindable rs2 = ResultSetFactory.makeRewindable(rs) ;
       
        // See if the same.
        boolean b = ResultSetCompare.equalsByValue(rs1, rs2) ;
        if ( !b )
        {
            rs1.reset() ;
            rs2.reset() ;
            System.out.println("------------------- "+this.getName());
            System.out.printf("**** Expected (%s)", expectedLabel) ;
            ResultSetFormatter.out(System.out, rs1) ;
            System.out.println("**** Got (TDB)") ;
            ResultSetFormatter.out(System.out, rs2) ;
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