public final class SelectOneStep<S,E> extends MapStep<S,E> implements TraversalParent, Scoping, PathProcessor
PathProcessor.ElementRequirement
id, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdSetByChild
Constructor and Description |
---|
SelectOneStep(Traversal.Admin traversal,
Scope scope,
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. |
int |
hashCode() |
protected E |
map(Traverser.Admin<S> traverser) |
Scope |
recommendNextScope() |
void |
setScope(Scope scope) |
String |
toString() |
processNextStart
addLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hasNext, next, reset, setId, setNextStep, setPreviousStep, setTraversal
finalize, getClass, notify, notifyAll, wait, wait, wait
addGlobalChild, asStep, getGlobalChildren, getSelfAndChildRequirements, integrateChild
getMaxRequirement
forEachRemaining, remove
public SelectOneStep(Traversal.Admin traversal, Scope scope, String selectLabel)
public String toString()
toString
in class AbstractStep<S,E>
public SelectOneStep<S,E> clone()
Step
EmptyStep
.public int hashCode()
hashCode
in class AbstractStep<S,E>
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>
public void setScope(Scope scope)
public Scope recommendNextScope()
recommendNextScope
in interface Scoping
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