public final class DedupGlobalStep<S> extends FilterStep<S> implements TraversalParent, Scoping, Bypassing, Barrier
Scoping.Variable
id, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdAndLabelsSetByChild
TYPICAL_GLOBAL_REQUIREMENTS, TYPICAL_GLOBAL_REQUIREMENTS_ARRAY, TYPICAL_LOCAL_REQUIREMENTS, TYPICAL_LOCAL_REQUIREMENTS_ARRAY
Constructor and Description |
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DedupGlobalStep(Traversal.Admin traversal,
String... dedupLabels) |
Modifier and Type | Method and Description |
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void |
addLocalChild(Traversal.Admin dedupTraversal) |
DedupGlobalStep<S> |
clone()
Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication.
|
protected boolean |
filter(Traverser.Admin<S> traverser) |
List<Traversal<S,Object>> |
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() |
void |
processAllStarts()
Process all left traversers by do not yield the resultant output.
|
void |
reset()
Reset the state of the step such that it has no incoming starts.
|
void |
setBypass(boolean bypass) |
String |
toString() |
processNextStart
addLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hasNext, next, removeLabel, setId, setNextStep, setPreviousStep, setTraversal
finalize, getClass, notify, notifyAll, wait, wait, wait
addGlobalChild, asStep, getGlobalChildren, getSelfAndChildRequirements, integrateChild, removeGlobalChild, removeLocalChild
getNullableScopeValue, getScopeValue
forEachRemaining, remove
public DedupGlobalStep(Traversal.Admin traversal, String... dedupLabels)
protected boolean filter(Traverser.Admin<S> traverser)
filter
in class FilterStep<S>
public List<Traversal<S,Object>> getLocalChildren()
getLocalChildren
in interface TraversalParent
public void addLocalChild(Traversal.Admin dedupTraversal)
addLocalChild
in interface TraversalParent
public DedupGlobalStep<S> clone()
Step
EmptyStep
.public int hashCode()
hashCode
in class AbstractStep<S,S>
public void reset()
Step
public String toString()
toString
in class AbstractStep<S,S>
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,S>
public Set<String> getScopeKeys()
getScopeKeys
in interface Scoping
public void processAllStarts()
Barrier
ReducingBarrierStep
, where traversers can be processed "on the fly" and thus, reduce memory consumption.processAllStarts
in interface Barrier
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