org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.map

Class TinkerMergeVertexStep<S>

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep<S,E>

org.apache.tinkerpop.gremlin.process.traversal.step.map.FlatMapStep<S,Vertex>

org.apache.tinkerpop.gremlin.process.traversal.step.map.MergeVertexStep<S>

org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.map.TinkerMergeVertexStep<S>

All Implemented Interfaces:

Serializable, AutoCloseable, Cloneable, Iterator<Traverser.Admin<Vertex>>, Step<S,Vertex>, Configuring, Mutating<Event>, Parameterizing, TraversalOptionParent<Merge,S,Vertex>, TraversalParent

public class TinkerMergeVertexStep<S>
extends MergeVertexStep<S>

Optimizes mergeV() searches by attempting to use an index where possible.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.map.MergeVertexStep

callbackRegistry

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep

id, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdAndLabelsSetByChild

Constructor Summary

Constructors

Constructor and Description
TinkerMergeVertexStep(MergeVertexStep step)

Method Summary

Modifier and Type	Method and Description
protected Stream<Vertex>	createSearchStream(Map<Object,Object> search) Use the Map of search criteria to most efficiently return a Stream<Vertex> of matching elements.

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.map.MergeVertexStep

addChildOption, clone, configure, flatMap, getCallbackRegistry, getLocalChildren, getMutatingCallbackRegistry, getOnCreateTraversal, getOnMatchTraversal, getParameters, getRequirements, getSearchCreateTraversal, hashCode, isFirst, isStart, processNextStart, reset, setTraversal, toString, validateMapInput

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.map.FlatMapStep

closeIterator

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep

addLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getStarts, getTraversal, hasNext, hasStarts, isTraverserStepIdAndLabelsSetByChild, next, prepareTraversalForNextStep, removeLabel, setId, setNextStep, setPreviousStep

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.step.TraversalParent

addGlobalChild, addLocalChild, asStep, close, getGlobalChildren, getSelfAndChildRequirements, integrateChild, removeGlobalChild, removeLocalChild, replaceLocalChild

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.Step

equals

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Detail

TinkerMergeVertexStep

public TinkerMergeVertexStep(MergeVertexStep step)

Method Detail

createSearchStream

protected Stream<Vertex> createSearchStream(Map<Object,Object> search)

Description copied from class: MergeVertexStep

Use the Map of search criteria to most efficiently return a Stream<Vertex> of matching elements. Providers might override this method when extending this step to provide their own optimized mechanisms for matching the list of vertices. This implementation is only optimized for the T.id so any other usage will simply be in-memory filtering which could be slow.

Overrides:

createSearchStream in class MergeVertexStep<S>