public final class SelectStep<S,E> extends MapStep<S,Map<String,E>> implements Scoping, TraversalParent, PathProcessor
PathProcessor.ElementRequirement
id, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdSetByChild
Constructor and Description |
---|
SelectStep(Traversal.Admin traversal,
Scope scope,
String... selectLabels) |
Modifier and Type | Method and Description |
---|---|
void |
addLocalChild(Traversal.Admin<?,?> selectTraversal) |
SelectStep<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 Map<String,E> |
map(Traverser.Admin<S> traverser) |
Scope |
recommendNextScope() |
void |
reset()
Reset the state of the step such that it has no incoming starts.
|
void |
setScope(Scope scope) |
String |
toString() |
processNextStart
addLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hasNext, next, setId, setNextStep, setPreviousStep, setTraversal
finalize, getClass, notify, notifyAll, wait, wait, wait
addGlobalChild, asStep, getGlobalChildren, getSelfAndChildRequirements, integrateChild
getMaxRequirement
forEachRemaining, remove
public SelectStep(Traversal.Admin traversal, Scope scope, String... selectLabels)
protected Map<String,E> map(Traverser.Admin<S> traverser)
public void reset()
Step
public SelectStep<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.public void setScope(Scope scope)
public Scope recommendNextScope()
recommendNextScope
in interface Scoping
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