Package com.hp.hpl.jena.query

Examples of com.hp.hpl.jena.query.Dataset.asDatasetGraph()

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    private void createTest(String filename, Resource type)
    {
        Object thing = AssemblerUtils.build(filename, type) ;
        assertTrue(thing instanceof Dataset) ;
        Dataset ds = (Dataset)thing ;
        assertTrue(ds.asDatasetGraph() instanceof DatasetGraphTransaction) ;
        assertTrue(ds.supportsTransactions()) ;
        ds.close();
       
    }
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    /** Example setup - in-memory dataset with two graphs, one triple in each */
    private static Dataset setup()
    {
        Dataset ds = TDBFactory.createDataset() ;
        DatasetGraphTDB dsg = (DatasetGraphTDB)(ds.asDatasetGraph()) ;
        Quad q1 = SSE.parseQuad("(<http://example/g1> <http://example/s> <http://example/p> <http://example/o1>)") ;
        Quad q2 = SSE.parseQuad("(<http://example/g2> <http://example/s> <http://example/p> <http://example/o2>)") ;
        dsg.add(q1) ;
        dsg.add(q2) ;
        return ds ;
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        Location location = new Location ("target/TDB");
        Dataset dataset = TDBFactory.createDataset(location);
        dataset.begin(ReadWrite.WRITE);
        try {
            TDBLoader.load(TDBInternal.getBaseDatasetGraphTDB(dataset.asDatasetGraph()), in, false);
            dataset.commit();
        } catch (Exception e) {
            dataset.abort();
        } finally {
            dataset.end();
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            dataset.end();
        }

        dataset.begin(ReadWrite.READ);
        try {
            Iterator<Quad> iter = dataset.asDatasetGraph().find();
            while ( iter.hasNext() ) {
                Quad quad = iter.next();
                System.out.println(quad);
            }
        } finally {
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        TDBLoader.load(TDBInternal.getBaseDatasetGraphTDB(TDBFactory.createDatasetGraph(location)), in, false);

        Dataset dataset = TDBFactory.createDataset(location);
        dataset.begin(ReadWrite.READ);
        try {
            Iterator<Quad> iter = dataset.asDatasetGraph().find();
            while ( iter.hasNext() ) {
                Quad quad = iter.next();
                System.out.println(quad);
            }
        } finally {
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    public static void main(String[] args) {
        Location location = new Location ( "target/tdb" );
        Dataset dataset = TDBFactory.createDataset ( location );
        dataset.begin ( ReadWrite.WRITE );
        try {
            DatasetGraph dsg = dataset.asDatasetGraph();
            DatasetGraph dsg2 = RiotLoader.load("src/main/resources/data/single-bad-triple.nt", Lang.NTRIPLES);
            Iterator<Quad> quads = dsg2.find();
            while ( quads.hasNext() ) {
                Quad quad = quads.next();
                dsg.add(quad);
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            e.printStackTrace(System.err);
            dataset.abort();
        } finally {
            dataset.end();
        }
        RiotWriter.writeNQuads(System.out, dataset.asDatasetGraph());
    }

}
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    @Test public void test() {
        Location location = new Location ( path );
        Dataset dataset = TDBFactory.createDataset ( location );
        dataset.begin ( ReadWrite.WRITE );
        try {
            DatasetGraph dsg = dataset.asDatasetGraph();
            DatasetGraph dsg2 = RiotLoader.datasetFromString ( str_triple, Lang.TURTLE, null );
            Iterator<Quad> quads = dsg2.find();
            while ( quads.hasNext() ) {
                Quad quad = quads.next();
                dsg.add(quad);
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        FileOps.clearDirectory( path );
        Location location = new Location ( path );
        Dataset dataset = TDBFactory.createDataset ( location );
        dataset.begin ( ReadWrite.WRITE );
        try {
            DatasetGraph dsg = dataset.asDatasetGraph();
            DatasetGraph dsg2 = RiotLoader.datasetFromString ( str_triple, Lang.TURTLE, null );
            Iterator<Quad> quads = dsg2.find();
            while ( quads.hasNext() ) {
                Quad quad = quads.next();
                dsg.add(quad);
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    @Test public void test_04() {
        Dataset dataset = TDBFactory.createDataset ();
        dataset.begin ( ReadWrite.WRITE );
        try {
            DatasetGraph dsg = dataset.asDatasetGraph();
            DatasetGraph dsg2 = RiotLoader.datasetFromString ( str_triple, Lang.TURTLE, null );
            Iterator<Quad> quads = dsg2.find();
            while ( quads.hasNext() ) {
                Quad quad = quads.next();
                dsg.add(quad);
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