public final class WherePredicateStep<S> extends FilterStep<S> implements Scoping, PathProcessor
Scoping.Variable
PathProcessor.ElementRequirement
Modifier and Type | Field and Description |
---|---|
protected Set<String> |
keepLabels |
protected P<Object> |
predicate |
protected Set<String> |
scopeKeys |
protected List<String> |
selectKeys |
protected String |
startKey |
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 |
---|
WherePredicateStep(Traversal.Admin traversal,
Optional<String> startKey,
P<String> predicate) |
Modifier and Type | Method and Description |
---|---|
WherePredicateStep<S> |
clone()
Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication.
|
protected boolean |
filter(Traverser.Admin<S> traverser) |
Set<String> |
getKeepLabels() |
Optional<P<?>> |
getPredicate() |
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() |
Optional<String> |
getStartKey() |
int |
hashCode() |
protected Traverser.Admin<S> |
processNextStart() |
void |
removeStartKey() |
void |
setKeepLabels(Set<String> labels) |
String |
toString() |
addLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hasNext, next, removeLabel, reset, setId, setNextStep, setPreviousStep, setTraversal
finalize, getClass, notify, notifyAll, wait, wait, wait
getNullableScopeValue, getScopeValue
getMaxRequirement, processTraverserPathLabels
forEachRemaining, remove
protected String startKey
public WherePredicateStep(Traversal.Admin traversal, Optional<String> startKey, P<String> predicate)
public void removeStartKey()
protected boolean filter(Traverser.Admin<S> traverser)
filter
in class FilterStep<S>
public String toString()
toString
in class AbstractStep<S,S>
public Set<String> getScopeKeys()
getScopeKeys
in interface Scoping
public WherePredicateStep<S> clone()
Step
EmptyStep
.public int hashCode()
hashCode
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>
protected Traverser.Admin<S> processNextStart()
processNextStart
in class FilterStep<S>
public void setKeepLabels(Set<String> labels)
setKeepLabels
in interface PathProcessor
public Set<String> getKeepLabels()
getKeepLabels
in interface PathProcessor
Copyright © 2013–2016 Apache Software Foundation. All rights reserved.