com.blazegraph.gremlin.structure

Class BlazeVertex

java.lang.Object

com.blazegraph.gremlin.structure.BlazeVertex

All Implemented Interfaces:

BlazeElement, org.apache.tinkerpop.gremlin.structure.Element, org.apache.tinkerpop.gremlin.structure.util.Host, org.apache.tinkerpop.gremlin.structure.Vertex

public class BlazeVertex
extends Object
implements org.apache.tinkerpop.gremlin.structure.Vertex, BlazeElement

Concrete vertex implementation for BlazeGraph.

Vertex existence is represented as one triples as follows:

     :vertexId rdf:type :label .
 

Vertex properties are represented as follows:

     :vertexId :key "val" .
 

Author:

mikepersonick

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.tinkerpop.gremlin.structure.Vertex

org.apache.tinkerpop.gremlin.structure.Vertex.Exceptions

Field Summary

Fields

Modifier and Type	Field and Description
protected BlazeGraph	graph BlazeGraph instance this element belongs to.
protected com.bigdata.rdf.model.BigdataURI	label The Literal representation of the element label.
protected com.bigdata.rdf.model.BigdataURI	uri The URI representation of the element id.
protected BlazeValueFactory	vf The BlazeValueFactory provided by the graph for round-tripping values.

Fields inherited from interface org.apache.tinkerpop.gremlin.structure.Vertex

DEFAULT_LABEL, EMPTY_ARGS

Method Summary

Modifier and Type	Method and Description
BlazeEdge	addEdge(String label, org.apache.tinkerpop.gremlin.structure.Vertex to, Object... kvs)
CloseableIterator<org.apache.tinkerpop.gremlin.structure.Edge>	edges(org.apache.tinkerpop.gremlin.structure.Direction direction, String... edgeLabels) Strength return type to CloseableIterator.
boolean	equals(Object object) Delegates to ElementHelper.areEqual(Element, Object)
BlazeGraph	graph() Return the BlazeGraph instance.
int	hashCode() Delegates to ElementHelper.hashCode(Element)
String	id() Return element id.
String	label() Return element label.
<V> CloseableIterator<org.apache.tinkerpop.gremlin.structure.VertexProperty<V>>	properties(String... keys) Strength return type to CloseableIterator.
<V> BlazeVertexProperty<V>	property(String key) Strengthen return type to BlazeVertexProperty.
<V> BlazeVertexProperty<V>	property(String key, V val) Strengthen return type to BlazeVertexProperty and use Cardinality.single by default.
<V> BlazeVertexProperty<V>	property(org.apache.tinkerpop.gremlin.structure.VertexProperty.Cardinality cardinality, String key, V val, Object... kvs) Strengthen return type to BlazeVertexProperty.
com.bigdata.rdf.model.BigdataURI	rdfId() Strengthen return type.
org.openrdf.model.URI	rdfLabel() Return the RDF representation of the label.
void	remove()
String	toString() Pass through to StringFactory.vertexString(Vertex)
CloseableIterator<org.apache.tinkerpop.gremlin.structure.Vertex>	vertices(org.apache.tinkerpop.gremlin.structure.Direction direction, String... edgeLabels) Strength return type to CloseableIterator.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.Vertex

property

Methods inherited from interface com.blazegraph.gremlin.structure.BlazeElement

graph, keys, rdfLabel, values

Methods inherited from interface org.apache.tinkerpop.gremlin.structure.Element

id, label, value

Field Detail

graph

protected final BlazeGraph graph

BlazeGraph instance this element belongs to.

vf

protected final BlazeValueFactory vf

The BlazeValueFactory provided by the graph for round-tripping values.

uri

protected final com.bigdata.rdf.model.BigdataURI uri

The URI representation of the element id.

label

protected final com.bigdata.rdf.model.BigdataURI label

The Literal representation of the element label.

Method Detail

rdfId

public com.bigdata.rdf.model.BigdataURI rdfId()

Strengthen return type. Vertex RDF id is its URI.

Specified by:

rdfId in interface BlazeElement

toString

public String toString()

Pass through to StringFactory.vertexString(Vertex)

Overrides:

toString in class Object

property

public <V> BlazeVertexProperty<V> property(String key)

Strengthen return type to BlazeVertexProperty.

Specified by:

property in interface org.apache.tinkerpop.gremlin.structure.Element

Specified by:

property in interface org.apache.tinkerpop.gremlin.structure.Vertex

See Also:

Vertex.property(String), properties(String...)

property

public <V> BlazeVertexProperty<V> property(String key,
                                           V val)

Strengthen return type to BlazeVertexProperty and use Cardinality.single by default.

Specified by:

property in interface org.apache.tinkerpop.gremlin.structure.Element

Specified by:

property in interface org.apache.tinkerpop.gremlin.structure.Vertex

property

public <V> BlazeVertexProperty<V> property(org.apache.tinkerpop.gremlin.structure.VertexProperty.Cardinality cardinality,
                                           String key,
                                           V val,
                                           Object... kvs)

Strengthen return type to BlazeVertexProperty.

Specified by:

property in interface org.apache.tinkerpop.gremlin.structure.Vertex

See Also:

BlazeGraph#vertexProperty(BlazeVertex, Cardinality, String, Object, Object...)

properties

public <V> CloseableIterator<org.apache.tinkerpop.gremlin.structure.VertexProperty<V>> properties(String... keys)

Strength return type to CloseableIterator. You MUST close this iterator when finished.

Specified by:

properties in interface BlazeElement

Specified by:

properties in interface org.apache.tinkerpop.gremlin.structure.Element

Specified by:

properties in interface org.apache.tinkerpop.gremlin.structure.Vertex

addEdge

public BlazeEdge addEdge(String label,
                         org.apache.tinkerpop.gremlin.structure.Vertex to,
                         Object... kvs)

Specified by:

addEdge in interface org.apache.tinkerpop.gremlin.structure.Vertex

See Also:

Vertex.addEdge(String, Vertex, Object...), BlazeGraph.addEdge(BlazeVertex, BlazeVertex, String, Object...)

edges

public CloseableIterator<org.apache.tinkerpop.gremlin.structure.Edge> edges(org.apache.tinkerpop.gremlin.structure.Direction direction,
                                                                            String... edgeLabels)

Strength return type to CloseableIterator. You MUST close this iterator when finished.

Specified by:

edges in interface org.apache.tinkerpop.gremlin.structure.Vertex

See Also:

Vertex.edges(Direction, String...), BlazeGraph.edgesFromVertex(BlazeVertex, Direction, String...)

vertices

public CloseableIterator<org.apache.tinkerpop.gremlin.structure.Vertex> vertices(org.apache.tinkerpop.gremlin.structure.Direction direction,
                                                                                 String... edgeLabels)

Strength return type to CloseableIterator. You MUST close this iterator when finished.

Specified by:

vertices in interface org.apache.tinkerpop.gremlin.structure.Vertex

See Also:

Vertex.vertices(Direction, String...)

remove

public void remove()

Specified by:

remove in interface org.apache.tinkerpop.gremlin.structure.Element

See Also:

Element.remove(), BlazeGraph.remove(BlazeVertex)

id

public String id()

Return element id. Tinkerpop3 interface method.

Specified by:

id in interface org.apache.tinkerpop.gremlin.structure.Element

See Also:

Element.id()

label

public String label()

Return element label. Tinkerpop3 interface method.

Specified by:

label in interface org.apache.tinkerpop.gremlin.structure.Element

See Also:

Element.label()

rdfLabel

public org.openrdf.model.URI rdfLabel()

Return the RDF representation of the label.

Specified by:

rdfLabel in interface BlazeElement

See Also:

BlazeElement.rdfLabel()

graph

public BlazeGraph graph()

Return the BlazeGraph instance.

Specified by:

graph in interface BlazeElement

Specified by:

graph in interface org.apache.tinkerpop.gremlin.structure.Element

hashCode

public int hashCode()

Delegates to ElementHelper.hashCode(Element)

Overrides:

hashCode in class Object

equals

public boolean equals(Object object)

Delegates to ElementHelper.areEqual(Element, Object)

Overrides:

equals in class Object