public final class PathFilterStep<S> extends FilterStep<S> implements FromToModulating, ByModulating, TraversalParent, PathProcessor
PathProcessor.ElementRequirement
Modifier and Type | Field and Description |
---|---|
protected String |
fromLabel |
protected String |
toLabel |
id, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdAndLabelsSetByChild
Constructor and Description |
---|
PathFilterStep(Traversal.Admin traversal,
boolean isSimple) |
Modifier and Type | Method and Description |
---|---|
void |
addFrom(String fromLabel) |
void |
addTo(String toLabel) |
PathFilterStep<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() |
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() |
void |
modulateBy(Traversal.Admin<?,?> pathTraversal) |
protected Traverser.Admin<S> |
processNextStart() |
void |
reset()
Reset the state of the step such that it has no incoming starts.
|
void |
setKeepLabels(Set<String> keepLabels) |
void |
setTraversal(Traversal.Admin<?,?> parentTraversal)
Set the
Traversal that this step is contained within. |
String |
toString() |
addLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hasNext, next, removeLabel, setId, setNextStep, setPreviousStep
finalize, getClass, notify, notifyAll, wait, wait, wait
addFrom, addTo
modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy
addGlobalChild, addLocalChild, asStep, close, getGlobalChildren, getSelfAndChildRequirements, integrateChild, removeGlobalChild, removeLocalChild
getMaxRequirement, processTraverserPathLabels
forEachRemaining, remove
public PathFilterStep(Traversal.Admin traversal, boolean isSimple)
protected boolean filter(Traverser.Admin<S> traverser)
filter
in class FilterStep<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 void addFrom(String fromLabel)
addFrom
in interface FromToModulating
public void addTo(String toLabel)
addTo
in interface FromToModulating
public String toString()
toString
in class AbstractStep<S,S>
public PathFilterStep<S> clone()
Step
EmptyStep
.public void setTraversal(Traversal.Admin<?,?> parentTraversal)
Step
Traversal
that this step is contained within.setTraversal
in interface Step<S,S>
setTraversal
in class AbstractStep<S,S>
parentTraversal
- the new traversal for this steppublic List<Traversal.Admin<Object,Object>> getLocalChildren()
getLocalChildren
in interface TraversalParent
public void modulateBy(Traversal.Admin<?,?> pathTraversal)
modulateBy
in interface ByModulating
public void reset()
Step
public int hashCode()
hashCode
in class AbstractStep<S,S>
public void setKeepLabels(Set<String> keepLabels)
setKeepLabels
in interface PathProcessor
protected Traverser.Admin<S> processNextStart()
processNextStart
in class FilterStep<S>
public Set<String> getKeepLabels()
getKeepLabels
in interface PathProcessor
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