Examples with InternalRelationType com.thinkaurelius.titan.graphdb.internal.InternalRelationType used on opensource projects

Example 6 with InternalRelationType

use of com.thinkaurelius.titan.graphdb.internal.InternalRelationType in project titan by thinkaurelius.

the class StandardTitanGraph method getTTL.

/**
     * The TTL of a relation (edge or property) is the minimum of:
     * 1) The TTL configured of the relation type (if exists)
     * 2) The TTL configured for the label any of the relation end point vertices (if exists)
     *
     * @param rel relation to determine the TTL for
     * @return
     */
public static int getTTL(InternalRelation rel) {
    assert rel.isNew();
    InternalRelationType baseType = (InternalRelationType) rel.getType();
    assert baseType.getBaseType() == null;
    int ttl = 0;
    Integer ettl = baseType.getTTL();
    if (ettl > 0)
        ttl = ettl;
    for (int i = 0; i < rel.getArity(); i++) {
        int vttl = getTTL(rel.getVertex(i));
        if (vttl > 0 && (vttl < ttl || ttl <= 0))
            ttl = vttl;
    }
    return ttl;
}

Example 7 with InternalRelationType

use of com.thinkaurelius.titan.graphdb.internal.InternalRelationType in project titan by thinkaurelius.

the class ManagementSystem method changeName.

@Override
public void changeName(TitanSchemaElement element, String newName) {
    Preconditions.checkArgument(StringUtils.isNotBlank(newName), "Invalid name: %s", newName);
    TitanSchemaVertex schemaVertex = getSchemaVertex(element);
    if (schemaVertex.name().equals(newName))
        return;
    TitanSchemaCategory schemaCategory = schemaVertex.valueOrNull(BaseKey.SchemaCategory);
    Preconditions.checkArgument(schemaCategory.hasName(), "Invalid schema element: %s", element);
    if (schemaVertex instanceof RelationType) {
        InternalRelationType relType = (InternalRelationType) schemaVertex;
        if (relType.getBaseType() != null) {
            newName = composeRelationTypeIndexName(relType.getBaseType(), newName);
        } else
            assert !(element instanceof RelationTypeIndex);
        TitanSchemaCategory cat = relType.isEdgeLabel() ? TitanSchemaCategory.EDGELABEL : TitanSchemaCategory.PROPERTYKEY;
        SystemTypeManager.isNotSystemName(cat, newName);
    } else if (element instanceof VertexLabel) {
        SystemTypeManager.isNotSystemName(TitanSchemaCategory.VERTEXLABEL, newName);
    } else if (element instanceof TitanGraphIndex) {
        checkIndexName(newName);
    }
    transaction.addProperty(schemaVertex, BaseKey.SchemaName, schemaCategory.getSchemaName(newName));
    updateSchemaVertex(schemaVertex);
    schemaVertex.resetCache();
    updatedTypes.add(schemaVertex);
}

Example 8 with InternalRelationType

use of com.thinkaurelius.titan.graphdb.internal.InternalRelationType in project titan by thinkaurelius.

the class VertexIDAssigner method assignID.

private void assignID(InternalElement element, IDManager.VertexIDType vertexIDType) {
    for (int attempt = 0; attempt < MAX_PARTITION_RENEW_ATTEMPTS; attempt++) {
        long partitionID = -1;
        if (element instanceof TitanSchemaVertex) {
            partitionID = IDManager.SCHEMA_PARTITION;
        } else if (element instanceof TitanVertex) {
            if (vertexIDType == IDManager.VertexIDType.PartitionedVertex)
                partitionID = IDManager.PARTITIONED_VERTEX_PARTITION;
            else
                partitionID = placementStrategy.getPartition(element);
        } else if (element instanceof InternalRelation) {
            InternalRelation relation = (InternalRelation) element;
            if (attempt < relation.getLen()) {
                //On the first attempts, try to use partition of incident vertices
                InternalVertex incident = relation.getVertex(attempt);
                Preconditions.checkArgument(incident.hasId());
                if (!IDManager.VertexIDType.PartitionedVertex.is(incident.longId()) || relation.isProperty()) {
                    partitionID = getPartitionID(incident);
                } else {
                    continue;
                }
            } else {
                partitionID = placementStrategy.getPartition(element);
            }
        }
        try {
            assignID(element, partitionID, vertexIDType);
        } catch (IDPoolExhaustedException e) {
            //try again on a different partition
            continue;
        }
        assert element.hasId();
        //Check if we should assign a different representative of a potential partitioned vertex
        if (element instanceof InternalRelation) {
            InternalRelation relation = (InternalRelation) element;
            if (relation.isProperty() && isPartitionedAt(relation, 0)) {
                //Always assign properties to the canonical representative of a partitioned vertex
                InternalVertex vertex = relation.getVertex(0);
                ((ReassignableRelation) relation).setVertexAt(0, vertex.tx().getInternalVertex(idManager.getCanonicalVertexId(vertex.longId())));
            } else if (relation.isEdge()) {
                for (int pos = 0; pos < relation.getArity(); pos++) {
                    if (isPartitionedAt(relation, pos)) {
                        InternalVertex incident = relation.getVertex(pos);
                        long newPartition;
                        int otherpos = (pos + 1) % 2;
                        if (((InternalRelationType) relation.getType()).multiplicity().isUnique(EdgeDirection.fromPosition(pos))) {
                            //If the relation is unique in the direction, we assign it to the canonical vertex...
                            newPartition = idManager.getPartitionId(idManager.getCanonicalVertexId(incident.longId()));
                        } else if (!isPartitionedAt(relation, otherpos)) {
                            //...else, we assign it to the partition of the non-partitioned vertex...
                            newPartition = getPartitionID(relation.getVertex(otherpos));
                        } else {
                            //...and if such does not exists (i.e. both end vertices are partitioned) we use the hash of the relation id
                            newPartition = idManager.getPartitionHashForId(relation.longId());
                        }
                        if (idManager.getPartitionId(incident.longId()) != newPartition) {
                            ((ReassignableRelation) relation).setVertexAt(pos, incident.tx().getOtherPartitionVertex(incident, newPartition));
                        }
                    }
                }
            }
        }
        return;
    }
    throw new IDPoolExhaustedException("Could not find non-exhausted partition ID Pool after " + MAX_PARTITION_RENEW_ATTEMPTS + " attempts");
}

Example 9 with InternalRelationType

use of com.thinkaurelius.titan.graphdb.internal.InternalRelationType in project atlas by apache.

the class PredicateCondition method evaluate.

@Override
public boolean evaluate(E element) {
    RelationType type;
    if (key instanceof String) {
        type = ((InternalElement) element).tx().getRelationType((String) key);
        if (type == null)
            return satisfiesCondition(null);
    } else {
        type = (RelationType) key;
    }
    Preconditions.checkNotNull(type);
    if (type.isPropertyKey()) {
        Iterator<Object> iter = ElementHelper.getValues(element, (PropertyKey) type).iterator();
        if (iter.hasNext()) {
            while (iter.hasNext()) {
                if (satisfiesCondition(iter.next()))
                    return true;
            }
            return false;
        }
        return satisfiesCondition(null);
    } else {
        assert ((InternalRelationType) type).getMultiplicity().isUnique(Direction.OUT);
        return satisfiesCondition(((TitanRelation) element).getProperty((EdgeLabel) type));
    }
}

Example 10 with InternalRelationType

use of com.thinkaurelius.titan.graphdb.internal.InternalRelationType in project titan by thinkaurelius.

the class TitanGraphTest method testSchemaTypes.

/* ==================================================================================
                            SCHEMA TESTS
     ==================================================================================*/
/**
     * Test the definition and inspection of various schema types and ensure their correct interpretation
     * within the graph
     */
@Test
public void testSchemaTypes() {
    // ---------- PROPERTY KEYS ----------------
    //Normal single-valued property key
    PropertyKey weight = makeKey("weight", Float.class);
    //Indexed unique property key
    PropertyKey uid = makeVertexIndexedUniqueKey("uid", String.class);
    //Indexed but not unique
    PropertyKey someid = makeVertexIndexedKey("someid", Object.class);
    //Set-valued property key
    PropertyKey name = mgmt.makePropertyKey("name").dataType(String.class).cardinality(Cardinality.SET).make();
    //List-valued property key with signature
    PropertyKey value = mgmt.makePropertyKey("value").dataType(Double.class).signature(weight).cardinality(Cardinality.LIST).make();
    // ---------- EDGE LABELS ----------------
    //Standard edge label
    EdgeLabel friend = mgmt.makeEdgeLabel("friend").make();
    //Unidirected
    EdgeLabel link = mgmt.makeEdgeLabel("link").unidirected().multiplicity(Multiplicity.MANY2ONE).make();
    //Signature label
    EdgeLabel connect = mgmt.makeEdgeLabel("connect").signature(uid).multiplicity(Multiplicity.SIMPLE).make();
    //Edge labels with different cardinalities
    EdgeLabel parent = mgmt.makeEdgeLabel("parent").multiplicity(Multiplicity.MANY2ONE).make();
    EdgeLabel child = mgmt.makeEdgeLabel("child").multiplicity(Multiplicity.ONE2MANY).make();
    EdgeLabel spouse = mgmt.makeEdgeLabel("spouse").multiplicity(Multiplicity.ONE2ONE).make();
    // ---------- VERTEX LABELS ----------------
    VertexLabel person = mgmt.makeVertexLabel("person").make();
    VertexLabel tag = mgmt.makeVertexLabel("tag").make();
    VertexLabel tweet = mgmt.makeVertexLabel("tweet").setStatic().make();
    long[] sig;
    // ######### INSPECTION & FAILURE ############
    assertTrue(mgmt.isOpen());
    assertEquals("weight", weight.toString());
    assertTrue(mgmt.containsRelationType("weight"));
    assertTrue(mgmt.containsPropertyKey("weight"));
    assertFalse(mgmt.containsEdgeLabel("weight"));
    assertTrue(mgmt.containsEdgeLabel("connect"));
    assertFalse(mgmt.containsPropertyKey("connect"));
    assertFalse(mgmt.containsRelationType("bla"));
    assertNull(mgmt.getPropertyKey("bla"));
    assertNull(mgmt.getEdgeLabel("bla"));
    assertNotNull(mgmt.getPropertyKey("weight"));
    assertNotNull(mgmt.getEdgeLabel("connect"));
    assertTrue(weight.isPropertyKey());
    assertFalse(weight.isEdgeLabel());
    assertEquals(Cardinality.SINGLE, weight.cardinality());
    assertEquals(Cardinality.SINGLE, someid.cardinality());
    assertEquals(Cardinality.SET, name.cardinality());
    assertEquals(Cardinality.LIST, value.cardinality());
    assertEquals(Object.class, someid.dataType());
    assertEquals(Float.class, weight.dataType());
    sig = ((InternalRelationType) value).getSignature();
    assertEquals(1, sig.length);
    assertEquals(weight.longId(), sig[0]);
    assertTrue(mgmt.getGraphIndex(uid.name()).isUnique());
    assertFalse(mgmt.getGraphIndex(someid.name()).isUnique());
    assertEquals("friend", friend.name());
    assertTrue(friend.isEdgeLabel());
    assertFalse(friend.isPropertyKey());
    assertEquals(Multiplicity.ONE2ONE, spouse.multiplicity());
    assertEquals(Multiplicity.ONE2MANY, child.multiplicity());
    assertEquals(Multiplicity.MANY2ONE, parent.multiplicity());
    assertEquals(Multiplicity.MULTI, friend.multiplicity());
    assertEquals(Multiplicity.SIMPLE, connect.multiplicity());
    assertTrue(link.isUnidirected());
    assertFalse(link.isDirected());
    assertFalse(child.isUnidirected());
    assertTrue(spouse.isDirected());
    assertFalse(((InternalRelationType) friend).isInvisibleType());
    assertTrue(((InternalRelationType) friend).isInvisible());
    assertEquals(0, ((InternalRelationType) friend).getSignature().length);
    sig = ((InternalRelationType) connect).getSignature();
    assertEquals(1, sig.length);
    assertEquals(uid.longId(), sig[0]);
    assertEquals(0, ((InternalRelationType) friend).getSortKey().length);
    assertEquals(Order.DEFAULT, ((InternalRelationType) friend).getSortOrder());
    assertEquals(SchemaStatus.ENABLED, ((InternalRelationType) friend).getStatus());
    assertEquals(5, Iterables.size(mgmt.getRelationTypes(PropertyKey.class)));
    assertEquals(6, Iterables.size(mgmt.getRelationTypes(EdgeLabel.class)));
    assertEquals(11, Iterables.size(mgmt.getRelationTypes(RelationType.class)));
    assertEquals(3, Iterables.size(mgmt.getVertexLabels()));
    assertEquals("tweet", tweet.name());
    assertTrue(mgmt.containsVertexLabel("person"));
    assertFalse(mgmt.containsVertexLabel("bla"));
    assertFalse(person.isPartitioned());
    assertFalse(person.isStatic());
    assertFalse(tag.isPartitioned());
    assertTrue(tweet.isStatic());
    //Failures
    try {
        //No datatype
        mgmt.makePropertyKey("fid").make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    try {
        //Already exists
        mgmt.makeEdgeLabel("link").unidirected().make();
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //signature and sort-key collide
        ((StandardEdgeLabelMaker) mgmt.makeEdgeLabel("other")).sortKey(someid, weight).signature(someid).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    //        } catch (IllegalArgumentException e) {}
    try {
        //sort key requires the label to be non-constrained
        ((StandardEdgeLabelMaker) mgmt.makeEdgeLabel("other")).multiplicity(Multiplicity.SIMPLE).sortKey(weight).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    try {
        //sort key requires the label to be non-constrained
        ((StandardEdgeLabelMaker) mgmt.makeEdgeLabel("other")).multiplicity(Multiplicity.MANY2ONE).sortKey(weight).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    try {
        //Already exists
        mgmt.makeVertexLabel("tweet").make();
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //signature key must have non-generic data type
        mgmt.makeEdgeLabel("test").signature(someid).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    // ######### END INSPECTION ############
    finishSchema();
    clopen();
    //Load schema types into current transaction
    weight = mgmt.getPropertyKey("weight");
    uid = mgmt.getPropertyKey("uid");
    someid = mgmt.getPropertyKey("someid");
    name = mgmt.getPropertyKey("name");
    value = mgmt.getPropertyKey("value");
    friend = mgmt.getEdgeLabel("friend");
    link = mgmt.getEdgeLabel("link");
    connect = mgmt.getEdgeLabel("connect");
    parent = mgmt.getEdgeLabel("parent");
    child = mgmt.getEdgeLabel("child");
    spouse = mgmt.getEdgeLabel("spouse");
    person = mgmt.getVertexLabel("person");
    tag = mgmt.getVertexLabel("tag");
    tweet = mgmt.getVertexLabel("tweet");
    // ######### INSPECTION & FAILURE (COPIED FROM ABOVE) ############
    assertTrue(mgmt.isOpen());
    assertEquals("weight", weight.toString());
    assertTrue(mgmt.containsRelationType("weight"));
    assertTrue(mgmt.containsPropertyKey("weight"));
    assertFalse(mgmt.containsEdgeLabel("weight"));
    assertTrue(mgmt.containsEdgeLabel("connect"));
    assertFalse(mgmt.containsPropertyKey("connect"));
    assertFalse(mgmt.containsRelationType("bla"));
    assertNull(mgmt.getPropertyKey("bla"));
    assertNull(mgmt.getEdgeLabel("bla"));
    assertNotNull(mgmt.getPropertyKey("weight"));
    assertNotNull(mgmt.getEdgeLabel("connect"));
    assertTrue(weight.isPropertyKey());
    assertFalse(weight.isEdgeLabel());
    assertEquals(Cardinality.SINGLE, weight.cardinality());
    assertEquals(Cardinality.SINGLE, someid.cardinality());
    assertEquals(Cardinality.SET, name.cardinality());
    assertEquals(Cardinality.LIST, value.cardinality());
    assertEquals(Object.class, someid.dataType());
    assertEquals(Float.class, weight.dataType());
    sig = ((InternalRelationType) value).getSignature();
    assertEquals(1, sig.length);
    assertEquals(weight.longId(), sig[0]);
    assertTrue(mgmt.getGraphIndex(uid.name()).isUnique());
    assertFalse(mgmt.getGraphIndex(someid.name()).isUnique());
    assertEquals("friend", friend.name());
    assertTrue(friend.isEdgeLabel());
    assertFalse(friend.isPropertyKey());
    assertEquals(Multiplicity.ONE2ONE, spouse.multiplicity());
    assertEquals(Multiplicity.ONE2MANY, child.multiplicity());
    assertEquals(Multiplicity.MANY2ONE, parent.multiplicity());
    assertEquals(Multiplicity.MULTI, friend.multiplicity());
    assertEquals(Multiplicity.SIMPLE, connect.multiplicity());
    assertTrue(link.isUnidirected());
    assertFalse(link.isDirected());
    assertFalse(child.isUnidirected());
    assertTrue(spouse.isDirected());
    assertFalse(((InternalRelationType) friend).isInvisibleType());
    assertTrue(((InternalRelationType) friend).isInvisible());
    assertEquals(0, ((InternalRelationType) friend).getSignature().length);
    sig = ((InternalRelationType) connect).getSignature();
    assertEquals(1, sig.length);
    assertEquals(uid.longId(), sig[0]);
    assertEquals(0, ((InternalRelationType) friend).getSortKey().length);
    assertEquals(Order.DEFAULT, ((InternalRelationType) friend).getSortOrder());
    assertEquals(SchemaStatus.ENABLED, ((InternalRelationType) friend).getStatus());
    assertEquals(5, Iterables.size(mgmt.getRelationTypes(PropertyKey.class)));
    assertEquals(6, Iterables.size(mgmt.getRelationTypes(EdgeLabel.class)));
    assertEquals(11, Iterables.size(mgmt.getRelationTypes(RelationType.class)));
    assertEquals(3, Iterables.size(mgmt.getVertexLabels()));
    assertEquals("tweet", tweet.name());
    assertTrue(mgmt.containsVertexLabel("person"));
    assertFalse(mgmt.containsVertexLabel("bla"));
    assertFalse(person.isPartitioned());
    assertFalse(person.isStatic());
    assertFalse(tag.isPartitioned());
    assertTrue(tweet.isStatic());
    //Failures
    try {
        //No datatype
        mgmt.makePropertyKey("fid").make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    try {
        //Already exists
        mgmt.makeEdgeLabel("link").unidirected().make();
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //signature and sort-key collide
        ((StandardEdgeLabelMaker) mgmt.makeEdgeLabel("other")).sortKey(someid, weight).signature(someid).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    //        } catch (IllegalArgumentException e) {}
    try {
        //sort key requires the label to be non-constrained
        ((StandardEdgeLabelMaker) mgmt.makeEdgeLabel("other")).multiplicity(Multiplicity.SIMPLE).sortKey(weight).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    try {
        //sort key requires the label to be non-constrained
        ((StandardEdgeLabelMaker) mgmt.makeEdgeLabel("other")).multiplicity(Multiplicity.MANY2ONE).sortKey(weight).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    try {
        //Already exists
        mgmt.makeVertexLabel("tweet").make();
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //signature key must have non-generic data type
        mgmt.makeEdgeLabel("test").signature(someid).make();
        fail();
    } catch (IllegalArgumentException e) {
    }
    // ######### END INSPECTION ############
    /*
          ####### Make sure schema semantics are honored in transactions ######
        */
    clopen();
    TitanTransaction tx2;
    //shouldn't exist
    assertEmpty(tx.query().has("uid", "v1").vertices());
    TitanVertex v = tx.addVertex();
    //test property keys
    v.property("uid", "v1");
    v.property("weight", 1.5);
    v.property("someid", "Hello");
    v.property("name", "Bob");
    v.property("name", "John");
    VertexProperty p = v.property("value", 11);
    p.property("weight", 22);
    v.property("value", 33.3, "weight", 66.6);
    //same values are supported for list-properties
    v.property("value", 11, "weight", 22);
    //test edges
    TitanVertex v12 = tx.addVertex("person"), v13 = tx.addVertex("person");
    v12.property("uid", "v12");
    v13.property("uid", "v13");
    v12.addEdge("parent", v, "weight", 4.5);
    v13.addEdge("parent", v, "weight", 4.5);
    v.addEdge("child", v12);
    v.addEdge("child", v13);
    v.addEdge("spouse", v12);
    v.addEdge("friend", v12);
    //supports multi edges
    v.addEdge("friend", v12);
    v.addEdge("connect", v12, "uid", "e1");
    v.addEdge("link", v13);
    TitanVertex v2 = tx.addVertex("tweet");
    v2.addEdge("link", v13);
    v12.addEdge("connect", v2);
    TitanEdge edge;
    // ######### INSPECTION & FAILURE ############
    assertEquals(v, (Vertex) getOnlyElement(tx.query().has("uid", Cmp.EQUAL, "v1").vertices()));
    v = getOnlyVertex(tx.query().has("uid", Cmp.EQUAL, "v1"));
    v12 = getOnlyVertex(tx.query().has("uid", Cmp.EQUAL, "v12"));
    v13 = getOnlyVertex(tx.query().has("uid", Cmp.EQUAL, "v13"));
    try {
        //Invalid data type
        v.property("weight", "x");
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //Only one "John" should be allowed
        v.property(VertexProperty.Cardinality.list, "name", "John");
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //Cannot set a property as edge
        v.property("link", v);
        fail();
    } catch (IllegalArgumentException e) {
    }
    //Only one property for weight allowed
    v.property(single, "weight", 1.0);
    assertCount(1, v.properties("weight"));
    v.property(VertexProperty.Cardinality.single, "weight", 0.5);
    assertEquals(0.5, v.<Float>value("weight").doubleValue(), 0.00001);
    assertEquals("v1", v.value("uid"));
    assertCount(2, v.properties("name"));
    for (TitanVertexProperty<String> prop : v.query().labels("name").properties()) {
        String nstr = prop.value();
        assertTrue(nstr.equals("Bob") || nstr.equals("John"));
    }
    assertTrue(size(v.properties("value")) >= 3);
    for (TitanVertexProperty<Double> prop : v.query().labels("value").properties()) {
        double prec = prop.value().doubleValue();
        assertEquals(prec * 2, prop.<Number>value("weight").doubleValue(), 0.00001);
    }
    //Ensure we can add additional values
    p = v.property("value", 44.4, "weight", 88.8);
    assertEquals(v, (Vertex) getOnlyElement(tx.query().has("someid", Cmp.EQUAL, "Hello").vertices()));
    //------- EDGES -------
    try {
        //multiplicity violation
        v12.addEdge("parent", v13);
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //multiplicity violation
        v13.addEdge("child", v12);
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //multiplicity violation
        v13.addEdge("spouse", v12);
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //multiplicity violation
        v.addEdge("spouse", v13);
        fail();
    } catch (SchemaViolationException e) {
    }
    assertCount(2, v.query().direction(Direction.IN).labels("parent").edges());
    assertCount(1, v12.query().direction(Direction.OUT).labels("parent").has("weight").edges());
    assertCount(1, v13.query().direction(Direction.OUT).labels("parent").has("weight").edges());
    assertEquals(v12, getOnlyElement(v.query().direction(Direction.OUT).labels("spouse").vertices()));
    edge = getOnlyElement(v.query().direction(Direction.BOTH).labels("connect").edges());
    assertEquals(1, edge.keys().size());
    assertEquals("e1", edge.value("uid"));
    try {
        //connect is simple
        v.addEdge("connect", v12);
        fail();
    } catch (SchemaViolationException e) {
    }
    //Make sure "link" is unidirected
    assertCount(1, v.query().direction(Direction.BOTH).labels("link").edges());
    assertCount(0, v13.query().direction(Direction.BOTH).labels("link").edges());
    //Assert we can add more friendships
    v.addEdge("friend", v12);
    v2 = getOnlyElement(v12.query().direction(Direction.OUT).labels("connect").vertices());
    assertEquals(v13, getOnlyElement(v2.query().direction(Direction.OUT).labels("link").vertices()));
    assertEquals(BaseVertexLabel.DEFAULT_VERTEXLABEL.name(), v.label());
    assertEquals("person", v12.label());
    assertEquals("person", v13.label());
    assertCount(4, tx.query().vertices());
    // ######### END INSPECTION & FAILURE ############
    clopen();
    // ######### INSPECTION & FAILURE (copied from above) ############
    assertEquals(v, getOnlyVertex(tx.query().has("uid", Cmp.EQUAL, "v1")));
    v = getOnlyVertex(tx.query().has("uid", Cmp.EQUAL, "v1"));
    v12 = getOnlyVertex(tx.query().has("uid", Cmp.EQUAL, "v12"));
    v13 = getOnlyVertex(tx.query().has("uid", Cmp.EQUAL, "v13"));
    try {
        //Invalid data type
        v.property("weight", "x");
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //Only one "John" should be allowed
        v.property(VertexProperty.Cardinality.list, "name", "John");
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //Cannot set a property as edge
        v.property("link", v);
        fail();
    } catch (IllegalArgumentException e) {
    }
    //Only one property for weight allowed
    v.property(VertexProperty.Cardinality.single, "weight", 1.0);
    assertCount(1, v.properties("weight"));
    v.property(VertexProperty.Cardinality.single, "weight", 0.5);
    assertEquals(0.5, v.<Float>value("weight").doubleValue(), 0.00001);
    assertEquals("v1", v.value("uid"));
    assertCount(2, v.properties("name"));
    for (TitanVertexProperty<String> prop : v.query().labels("name").properties()) {
        String nstr = prop.value();
        assertTrue(nstr.equals("Bob") || nstr.equals("John"));
    }
    assertTrue(Iterables.size(v.query().labels("value").properties()) >= 3);
    for (TitanVertexProperty<Double> prop : v.query().labels("value").properties()) {
        double prec = prop.value().doubleValue();
        assertEquals(prec * 2, prop.<Number>value("weight").doubleValue(), 0.00001);
    }
    //Ensure we can add additional values
    p = v.property("value", 44.4, "weight", 88.8);
    assertEquals(v, (Vertex) getOnlyElement(tx.query().has("someid", Cmp.EQUAL, "Hello").vertices()));
    //------- EDGES -------
    try {
        //multiplicity violation
        v12.addEdge("parent", v13);
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //multiplicity violation
        v13.addEdge("child", v12);
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //multiplicity violation
        v13.addEdge("spouse", v12);
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        //multiplicity violation
        v.addEdge("spouse", v13);
        fail();
    } catch (SchemaViolationException e) {
    }
    assertCount(2, v.query().direction(Direction.IN).labels("parent").edges());
    assertCount(1, v12.query().direction(Direction.OUT).labels("parent").has("weight").edges());
    assertCount(1, v13.query().direction(Direction.OUT).labels("parent").has("weight").edges());
    assertEquals(v12, getOnlyElement(v.query().direction(Direction.OUT).labels("spouse").vertices()));
    edge = getOnlyElement(v.query().direction(Direction.BOTH).labels("connect").edges());
    assertEquals(1, edge.keys().size());
    assertEquals("e1", edge.value("uid"));
    try {
        //connect is simple
        v.addEdge("connect", v12);
        fail();
    } catch (SchemaViolationException e) {
    }
    //Make sure "link" is unidirected
    assertCount(1, v.query().direction(Direction.BOTH).labels("link").edges());
    assertCount(0, v13.query().direction(Direction.BOTH).labels("link").edges());
    //Assert we can add more friendships
    v.addEdge("friend", v12);
    v2 = getOnlyElement(v12.query().direction(Direction.OUT).labels("connect").vertices());
    assertEquals(v13, getOnlyElement(v2.query().direction(Direction.OUT).labels("link").vertices()));
    assertEquals(BaseVertexLabel.DEFAULT_VERTEXLABEL.name(), v.label());
    assertEquals("person", v12.label());
    assertEquals("person", v13.label());
    assertCount(4, tx.query().vertices());
    // ######### END INSPECTION & FAILURE ############
    //Ensure index uniqueness enforcement
    tx2 = graph.newTransaction();
    try {
        TitanVertex vx = tx2.addVertex();
        try {
            //property is unique
            vx.property(VertexProperty.Cardinality.single, "uid", "v1");
            fail();
        } catch (SchemaViolationException e) {
        }
        vx.property(VertexProperty.Cardinality.single, "uid", "unique");
        TitanVertex vx2 = tx2.addVertex();
        try {
            //property unique
            vx2.property(VertexProperty.Cardinality.single, "uid", "unique");
            fail();
        } catch (SchemaViolationException e) {
        }
    } finally {
        tx2.rollback();
    }
    //Ensure that v2 is really static
    v2 = getV(tx, v2);
    assertEquals("tweet", v2.label());
    try {
        v2.property(VertexProperty.Cardinality.single, "weight", 11);
        fail();
    } catch (SchemaViolationException e) {
    }
    try {
        v2.addEdge("friend", v12);
        fail();
    } catch (SchemaViolationException e) {
    }
    //Ensure that unidirected edges keep pointing to deleted vertices
    getV(tx, v13).remove();
    assertCount(1, v.query().direction(Direction.BOTH).labels("link").edges());
    //Finally, test the schema container
    SchemaContainer schemaContainer = new SchemaContainer(graph);
    assertTrue(schemaContainer.containsRelationType("weight"));
    assertTrue(schemaContainer.containsRelationType("friend"));
    assertTrue(schemaContainer.containsVertexLabel("person"));
    VertexLabelDefinition vld = schemaContainer.getVertexLabel("tag");
    assertFalse(vld.isPartitioned());
    assertFalse(vld.isStatic());
    PropertyKeyDefinition pkd = schemaContainer.getPropertyKey("name");
    assertEquals(Cardinality.SET, pkd.getCardinality());
    assertEquals(String.class, pkd.getDataType());
    EdgeLabelDefinition eld = schemaContainer.getEdgeLabel("child");
    assertEquals("child", eld.getName());
    assertEquals(child.longId(), eld.getLongId());
    assertEquals(Multiplicity.ONE2MANY, eld.getMultiplicity());
    assertFalse(eld.isUnidirected());
}