Package com.tinkerpop.furnace.util

Examples of com.tinkerpop.furnace.util.VertexQueryBuilder

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    public void testOutDegreeCalculation() {

        Graph graph = TinkerGraphFactory.createTinkerGraph();

        DegreeRankProgram program = DegreeRankProgram.create().degreeQuery(new VertexQueryBuilder().direction(Direction.OUT)).build();
        SerialGraphComputer computer = new SerialGraphComputer(graph, program, GraphComputer.Isolation.BSP);
        computer.execute();

        VertexMemory results = computer.getVertexMemory();
        assertEquals(results.getProperty(graph.getVertex(1), DegreeRankProgram.DEGREE), 3l);
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    public void testBothCreatedDegreeCalculation() {

        Graph graph = TinkerGraphFactory.createTinkerGraph();

        DegreeRankProgram program = DegreeRankProgram.create().degreeQuery(new VertexQueryBuilder().direction(Direction.BOTH).labels("created")).build();
        SerialGraphComputer computer = new SerialGraphComputer(graph, program, GraphComputer.Isolation.BSP);
        computer.execute();

        VertexMemory results = computer.getVertexMemory();
        assertEquals(results.getProperty(graph.getVertex(1), DegreeRankProgram.DEGREE), 1l);
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    public void testTraversalProgram() {
        Graph graph = TinkerGraphFactory.createTinkerGraph();

        TraversalProgram program = TraversalProgram.create().iterations(1)
                .addQuery(new VertexQueryBuilder().direction(Direction.IN).labels("created"))
                .addQuery(new VertexQueryBuilder().direction(Direction.OUT).labels("created")).build();
        SerialGraphComputer computer = new SerialGraphComputer(graph, program, GraphComputer.Isolation.BSP);
        computer.execute();

        VertexMemory results = computer.getVertexMemory();
        for (Vertex vertex : graph.getVertices()) {
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    public void execute(final Vertex vertex, final GraphMemory graphMemory) {
        if (graphMemory.isInitialIteration()) {
            vertex.setProperty(COUNTS, 1l);
        } else {
            final VertexQueryBuilder query = this.queries.get((graphMemory.getIteration() - 1) % this.queries.size());
            long newCount = 0l;
            for (final Vertex adjacent : query.build(vertex).vertices()) {
                newCount = newCount + (Long) adjacent.getProperty(COUNTS);
            }
            vertex.setProperty(COUNTS, newCount);
        }
    }
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Related Classes of com.tinkerpop.furnace.util.VertexQueryBuilder

  • com.tinkerpop.blueprints.VertexQuery
  • com.tinkerpop.furnace.algorithms.vertexcentric.programs.paths.TraversalProgram
  • com.tinkerpop.furnace.algorithms.vertexcentric.programs.paths.TraversalProgramTest
  • com.tinkerpop.furnace.algorithms.vertexcentric.programs.ranking.DegreeRankProgramTest
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