public final class SelectStep<S,E> extends MapStep<S,Map<String,E>> implements Scoping, TraversalParent, PathProcessor
Scoping.VariablePathProcessor.ElementRequirementid, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdAndLabelsSetByChildTYPICAL_GLOBAL_REQUIREMENTS, TYPICAL_GLOBAL_REQUIREMENTS_ARRAY, TYPICAL_LOCAL_REQUIREMENTS, TYPICAL_LOCAL_REQUIREMENTS_ARRAY| Constructor and Description |
|---|
SelectStep(Traversal.Admin traversal,
Pop pop,
String... selectKeys) |
| 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,E>> |
getLocalChildren() |
Set<TraverserRequirement> |
getRequirements()
Provide the necessary
TraverserRequirement that must be met by the traverser in order for the step to function properly. |
Set<String> |
getScopeKeys() |
int |
hashCode() |
protected Map<String,E> |
map(Traverser.Admin<S> traverser) |
void |
reset()
Reset the state of the step such that it has no incoming starts.
|
String |
toString() |
processNextStartaddLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hasNext, next, removeLabel, setId, setNextStep, setPreviousStep, setTraversalfinalize, getClass, notify, notifyAll, wait, wait, waitgetNullableScopeValue, getScopeValueaddGlobalChild, asStep, getGlobalChildren, getSelfAndChildRequirements, integrateChild, removeGlobalChild, removeLocalChildgetMaxRequirementforEachRemaining, removepublic SelectStep(Traversal.Admin traversal, Pop pop, String... selectKeys)
protected Map<String,E> map(Traverser.Admin<S> traverser)
public void reset()
Steppublic SelectStep<S,E> clone()
StepEmptyStep.public List<Traversal.Admin<Object,E>> getLocalChildren()
getLocalChildren in interface TraversalParentpublic void addLocalChild(Traversal.Admin<?,?> selectTraversal)
addLocalChild in interface TraversalParentpublic Set<TraverserRequirement> getRequirements()
StepTraverserRequirement that must be met by the traverser in order for the step to function properly.
The provided default implements returns an empty set.public Set<String> getScopeKeys()
getScopeKeys in interface ScopingCopyright © 2013–2015 Apache Software Foundation. All rights reserved.