Examples of com.thinkaurelius.titan.core.TitanKey

com.thinkaurelius.titan.core.TitanKey
TitanKey is an extension of {@link TitanType} for properties.
In addition to {@link TitanType}, TitanKey defines:
- Data Type: The accepted types of attribute values.
- Index: Whether attribute values are indexed. If a property key is configured to be indexed, then all properties with that key are indexed which means one can retrieve vertices for that key and a value via {@link com.thinkaurelius.titan.core.TitanTransaction#query()}. The type of index can be configured individually for each key and each element type. For instance, one can define only vertices to be indexed for a particular key.
@author Matthias Bröcheler (me@matthiasb.com) @see TitanType


        TitanType dstType = dstTx.getType("name");
        Assert.assertNotNull(dstType);
        Assert.assertTrue(dstType instanceof TitanKey);


        TitanKey dstKey = (TitanKey) dstType;
        Assert.assertEquals(dstKey.getName(), "name");
        Assert.assertEquals(dstKey.getDataType(), String.class);


        // Make sure the vertices got copied.
        Vertex dstJoeVertex = dstTx.getVertices("name", "Joe").iterator().next();
        Assert.assertNotNull(dstJoeVertex);
        Assert.assertEquals(dstJoeVertex.getProperty("name"), "Joe");

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        TitanTransaction tx = g.newTransaction();
        // Add a vertex that has an out edge to every other vertex
        Vertex hiOutDeg = tx.addVertex(Schema.SUPERNODE_UID);
        String label = schema.getSupernodeOutLabel();
        TitanKey uidKey = tx.getPropertyKey(Schema.UID_PROP);
        hiOutDeg.setProperty(Schema.UID_PROP, Schema.SUPERNODE_UID);
        String pKey = schema.getSortKeyForLabel(label);
        for (long i = INITIAL_VERTEX_UID; i < schema.getVertexCount(); i++) {
            Vertex in = tx.getVertex(uidKey, i);
            Edge e = hiOutDeg.addEdge(label, in);

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            tx.makeKey(getEdgePropertyName(i)).dataType(Integer.class).indexed(Edge.class).single().make();
        }
        for (int i = 0; i < edgeLabels; i++) {
            String labelName = getEdgeLabelName(i);
            String pkName = getSortKeyForLabel(labelName);
            TitanKey pk = tx.getPropertyKey(pkName);
            tx.makeLabel(getEdgeLabelName(i)).sortKey(pk).make();
        }


        tx.makeKey(UID_PROP).dataType(Long.class).indexed(Vertex.class).single().unique().make();
        tx.commit();

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    public void testTransactionalMemory() throws Exception {
        graph.makeKey("uid").dataType(Long.class).indexed(Vertex.class).single(TypeMaker.UniquenessConsistency.NO_LOCK)
                .unique(TypeMaker.UniquenessConsistency.NO_LOCK).make();
        graph.makeKey("name").dataType(String.class).single(TypeMaker.UniquenessConsistency.NO_LOCK)
                .make();
        TitanKey time = graph.makeKey("time").dataType(Integer.class).single(TypeMaker.UniquenessConsistency.NO_LOCK).make();
        graph.makeLabel("friend").signature(time).directed().make();
        graph.commit();


        final Random random = new Random();
        final int rounds = 100;

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        graph.makeKey("name").dataType(String.class).indexed(Vertex.class).unique().make();
        graph.makeKey("age").dataType(Integer.class).indexed(INDEX_NAME, Vertex.class).make();
        graph.makeKey("type").dataType(String.class).make();


        final TitanKey time = graph.makeKey("time").dataType(Integer.class).make();
        final TitanKey reason = graph.makeKey("reason").dataType(String.class).indexed(INDEX_NAME, Edge.class).make();
        graph.makeKey("place").dataType(Geoshape.class).indexed(INDEX_NAME, Edge.class).make();


        graph.makeLabel("father").manyToOne().make();
        graph.makeLabel("mother").manyToOne().make();
        graph.makeLabel("battled").sortKey(time).make();

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    @Override
    public void testGraphQueryForVertices() {
        TitanGraph g = (TitanGraph) graphTest.generateGraph();
        if (g.getType("age") == null) {
            TitanKey age = g.makeKey("age").dataType(Integer.class).single().make();
        }
        g.shutdown();
        super.testGraphQueryForVertices();
    }

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    @Override
    public void testGraphQueryForEdges() {
        TitanGraph g = (TitanGraph) graphTest.generateGraph();
        if (g.getType("weight") == null) {
            TitanKey weight = g.makeKey("weight").dataType(Double.class).single().make();
        }
        g.shutdown();
        super.testGraphQueryForEdges();
    }

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com.thinkaurelius.titan.testutil.gen.GraphGenerator

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