public final class SelectOneStep<S,E> extends MapStep<S,E> implements TraversalParent, EngineDependent
id, label, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdSetByChild
Constructor and Description |
---|
SelectOneStep(Traversal.Admin traversal,
String selectLabel) |
Modifier and Type | Method and Description |
---|---|
void |
addLocalChild(Traversal.Admin<?,?> selectTraversal) |
SelectOneStep<S,E> |
clone()
Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication.
|
List<Traversal.Admin<Object,Object>> |
getLocalChildren() |
Set<TraverserRequirement> |
getRequirements()
Provide the necessary
TraverserRequirement that must be met by the traverser in order for the step to function properly. |
protected E |
map(Traverser.Admin<S> traverser) |
void |
onEngine(TraversalEngine traversalEngine) |
String |
toString() |
processNextStart
addStart, addStarts, getId, getLabel, getNextStep, getPreviousStep, getTraversal, hasNext, next, reset, setId, setLabel, setNextStep, setPreviousStep, setTraversal
equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
addGlobalChild, asStep, getGlobalChildren, getSelfAndChildRequirements, integrateChild
forEachRemaining, remove
public SelectOneStep(Traversal.Admin traversal, String selectLabel)
public void onEngine(TraversalEngine traversalEngine)
onEngine
in interface EngineDependent
public String toString()
toString
in class AbstractStep<S,E>
public SelectOneStep<S,E> clone()
Step
EmptyStep
.public List<Traversal.Admin<Object,Object>> getLocalChildren()
getLocalChildren
in interface TraversalParent
public void addLocalChild(Traversal.Admin<?,?> selectTraversal)
addLocalChild
in interface TraversalParent
public Set<TraverserRequirement> getRequirements()
Step
TraverserRequirement
that must be met by the traverser in order for the step to function properly.
The provided default implements returns an empty set.getRequirements
in interface Step<S,E>
getRequirements
in class MapStep<S,E>
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