Package org.apache.tinkerpop.gremlin.tinkergraph.structure

Class TinkerEdge

java.lang.Object

org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerElement

org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerEdge

All Implemented Interfaces:

Edge, Element

public class TinkerEdge
extends TinkerElement
implements Edge

Author:

Marko A. Rodriguez (http://markorodriguez.com)

Nested Class Summary

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

Edge.Exceptions

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

Element.Exceptions

Field Summary

Fields

Modifier and Type	Field	Description
protected Set<String>	edgeLabels
protected Vertex	inVertex
protected Object	inVertexId
protected Vertex	outVertex
protected Object	outVertexId
protected Map<String,Property>	properties

Fields inherited from class org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerElement

currentVersion, id, label, removed

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

DEFAULT_LABEL

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TinkerEdge(Object id, Vertex outVertex, String label, Vertex inVertex)
protected	TinkerEdge(Object id, Vertex outVertex, String label, Vertex inVertex, long currentVersion)
protected	TinkerEdge(Object id, Vertex outVertex, Set<String> labels, Vertex inVertex)
protected	TinkerEdge(Object id, Vertex outVertex, Set<String> labels, Vertex inVertex, long currentVersion)

Method Summary

Modifier and Type	Method	Description
Object	clone()
Graph	graph()	Get the graph that this element is within.
Vertex	inVertex()	Get the incoming/head vertex of this edge.
Set<String>	keys()	Get the keys of the properties associated with this element.
String	label()	Deprecated.
Set<String>	labels()	Gets all labels for this element.
Vertex	outVertex()	Get the outgoing/tail vertex of this edge.
<V> Iterator<Property<V>>	properties(String... propertyKeys)	Get an Iterator of properties where the propertyKeys is meant to be a filter on the available keys.
<V> Property<V>	property(String key)	Get a Property for the Element given its key.
<V> Property<V>	property(String key, V value)	Add or set a property value for the Element given its key.
void	remove()	Removes the Element from the graph.
String	toString()
Iterator<Vertex>	vertices(Direction direction)	Retrieve the vertex (or vertices) associated with this edge as defined by the direction.

Methods inherited from class org.apache.tinkerpop.gremlin.tinkergraph.structure.TinkerElement

elementAlreadyRemoved, equals, hashCode, id, version

Methods inherited from class java.lang.Object

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

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

bothVertices

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

addLabel, dropLabel, dropLabels, id, value, values

Field Details

edgeLabels

protected Set<String> edgeLabels

properties

protected Map<String,Property> properties

inVertex

protected Vertex inVertex

inVertexId

protected Object inVertexId

outVertex

protected Vertex outVertex

outVertexId

protected Object outVertexId

Constructor Details

TinkerEdge

protected TinkerEdge(Object id,
 Vertex outVertex,
 String label,
 Vertex inVertex)

TinkerEdge

protected TinkerEdge(Object id,
 Vertex outVertex,
 String label,
 Vertex inVertex,
 long currentVersion)

TinkerEdge

protected TinkerEdge(Object id,
 Vertex outVertex,
 Set<String> labels,
 Vertex inVertex)

TinkerEdge

protected TinkerEdge(Object id,
 Vertex outVertex,
 Set<String> labels,
 Vertex inVertex,
 long currentVersion)

Method Details

property

public <V> Property<V> property(String key,
 V value)

Description copied from interface: Element

Add or set a property value for the Element given its key.

Specified by:

property in interface Element

property

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

Description copied from interface: Element

Get a Property for the Element given its key. The default implementation calls the raw Element.properties(java.lang.String...).

Specified by:

property in interface Element

keys

public Set<String> keys()

Description copied from interface: Element

Get the keys of the properties associated with this element. The default implementation iterators the properties and stores the keys into a HashSet.

Specified by:

keys in interface Element

Returns:

The property key set

labels

public Set<String> labels()

Description copied from interface: Element

Gets all labels for this element.

For Vertex: may return zero or more labels (multi-label support). For Edge: returns a singleton set (single label only in TinkerGraph). For VertexProperty: returns a singleton set containing the property key.

Specified by:

labels in interface Element

Returns:

An unmodifiable Set of labels; may be empty for vertices with no labels

label

@Deprecated
public String label()

Deprecated.

Description copied from interface: Element

Gets the label for the graph Element which helps categorize it.

Specified by:

label in interface Element

Overrides:

label in class TinkerElement

Returns:

The label of the element

remove

public void remove()

Description copied from interface: Element

Removes the Element from the graph.

Specified by:

remove in interface Element

toString

public String toString()

Overrides:

toString in class Object

clone

public Object clone()

Specified by:

clone in class TinkerElement

outVertex

public Vertex outVertex()

Description copied from interface: Edge

Get the outgoing/tail vertex of this edge.

Specified by:

outVertex in interface Edge

Returns:

the outgoing vertex of the edge

inVertex

public Vertex inVertex()

Description copied from interface: Edge

Get the incoming/head vertex of this edge.

Specified by:

inVertex in interface Edge

Returns:

the incoming vertex of the edge

vertices

public Iterator<Vertex> vertices(Direction direction)

Description copied from interface: Edge

Retrieve the vertex (or vertices) associated with this edge as defined by the direction. If the direction is Direction.BOTH then the iterator order is: Direction.OUT then Direction.IN.

Specified by:

vertices in interface Edge

Parameters:

direction - Get the incoming vertex, outgoing vertex, or both vertices

Returns:

An iterator with 1 or 2 vertices

graph

public Graph graph()

Description copied from interface: Element

Get the graph that this element is within.

Specified by:

graph in interface Element

Returns:

the graph of this element

properties

public <V> Iterator<Property<V>> properties(String... propertyKeys)

Description copied from interface: Edge

Get an Iterator of properties where the propertyKeys is meant to be a filter on the available keys. If no keys are provide then return all the properties.

Specified by:

properties in interface Edge

Specified by:

properties in interface Element