com.tinkerpop.gremlin.process.graph.step.map

Class VertexStep<E extends Element>

java.lang.Object

com.tinkerpop.gremlin.process.util.AbstractStep<S,E>

com.tinkerpop.gremlin.process.graph.step.map.FlatMapStep<Vertex,E>

com.tinkerpop.gremlin.process.graph.step.map.VertexStep<E>

All Implemented Interfaces:

Reversible, Step<Vertex,E>, java.lang.Cloneable, java.util.Iterator<Traverser<E>>

public class VertexStep<E extends Element>
extends FlatMapStep<Vertex,E>
implements Reversible

Author:

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

Field Summary

Fields inherited from class com.tinkerpop.gremlin.process.util.AbstractStep

id, label, nextEnd, nextStep, previousStep, PROFILING_ENABLED, starts, traversal, traverserStepIdSetByChild

Constructor Summary

Constructors

Constructor and Description
VertexStep(Traversal traversal, java.lang.Class<E> returnClass, Direction direction, java.lang.String... edgeLabels)

Method Summary

Modifier and Type	Method and Description
Direction	getDirection()
java.lang.String[]	getEdgeLabels()
java.util.Set<TraverserRequirement>	getRequirements() Provide the necessary TraverserRequirement that must be met by the traverser in order for the step to function properly.
java.lang.Class<E>	getReturnClass()
void	reverse()
java.lang.String	toString()

Methods inherited from class com.tinkerpop.gremlin.process.graph.step.map.FlatMapStep

processNextStart, reset, setFunction

Methods inherited from class com.tinkerpop.gremlin.process.util.AbstractStep

addStart, addStarts, clone, getId, getLabel, getNextStep, getPreviousStep, getTraversal, hasNext, next, setId, setLabel, setNextStep, setPreviousStep, setTraversal

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Detail

VertexStep

public VertexStep(Traversal traversal,
                  java.lang.Class<E> returnClass,
                  Direction direction,
                  java.lang.String... edgeLabels)

Method Detail

reverse

public void reverse()

Specified by:

reverse in interface Reversible

getDirection

public Direction getDirection()

getEdgeLabels

public java.lang.String[] getEdgeLabels()

getReturnClass

public java.lang.Class<E> getReturnClass()

toString

public java.lang.String toString()

Overrides:

toString in class AbstractStep<Vertex,E extends Element>

getRequirements

public java.util.Set<TraverserRequirement> getRequirements()

Description copied from interface: Step

Provide the necessary TraverserRequirement that must be met by the traverser in order for the step to function properly. The provided default implements returns an empty set.

Specified by:

getRequirements in interface Step<Vertex,E extends Element>

Returns:

the set of requirements