Class TraversalFlatMapStep<S,E>
- java.lang.Object
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- org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep<S,E>
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- org.apache.tinkerpop.gremlin.process.traversal.step.map.FlatMapStep<S,E>
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- org.apache.tinkerpop.gremlin.process.traversal.step.map.TraversalFlatMapStep<S,E>
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- All Implemented Interfaces:
Serializable
,AutoCloseable
,Cloneable
,Iterator<Traverser.Admin<E>>
,Step<S,E>
,TraversalParent
public final class TraversalFlatMapStep<S,E> extends FlatMapStep<S,E> implements TraversalParent
- Author:
- Marko A. Rodriguez (http://markorodriguez.com)
- See Also:
- Serialized Form
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Field Summary
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Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep
id, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdAndLabelsSetByChild
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Constructor Summary
Constructors Constructor Description TraversalFlatMapStep(Traversal.Admin traversal, Traversal<S,E> flatMapTraversal)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description TraversalFlatMapStep<S,E>
clone()
Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication.protected Iterator<E>
flatMap(Traverser.Admin<S> traverser)
List<Traversal.Admin<S,E>>
getLocalChildren()
Set<TraverserRequirement>
getRequirements()
Provide the necessaryTraverserRequirement
that must be met by the traverser in order for the step to function properly.int
hashCode()
void
setTraversal(Traversal.Admin<?,?> parentTraversal)
Set theTraversal
that this step is contained within.String
toString()
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Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.map.FlatMapStep
closeIterator, processNextStart, reset
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Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep
addLabel, addStart, addStarts, clearLabels, equals, getId, getLabels, getNextStep, getPreviousStep, getStarts, getTraversal, hasNext, hasStarts, isTraverserStepIdAndLabelsSetByChild, next, prepareTraversalForNextStep, removeLabel, setId, setNextStep, setPreviousStep
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Methods inherited from class java.lang.Object
finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface java.util.Iterator
forEachRemaining, remove
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Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.step.TraversalParent
addGlobalChild, addLocalChild, asStep, close, getGlobalChildren, getSelfAndChildRequirements, integrateChild, removeGlobalChild, removeLocalChild, replaceLocalChild
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Constructor Detail
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TraversalFlatMapStep
public TraversalFlatMapStep(Traversal.Admin traversal, Traversal<S,E> flatMapTraversal)
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Method Detail
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flatMap
protected Iterator<E> flatMap(Traverser.Admin<S> traverser)
- Specified by:
flatMap
in classFlatMapStep<S,E>
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getLocalChildren
public List<Traversal.Admin<S,E>> getLocalChildren()
- Specified by:
getLocalChildren
in interfaceTraversalParent
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clone
public TraversalFlatMapStep<S,E> clone()
Description copied from interface:Step
Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication. When cloning a step, it is important that the steps, the cloned step is equivalent to the state of the step whenStep.reset()
is called. Moreover, the previous and next steps should be set toEmptyStep
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setTraversal
public void setTraversal(Traversal.Admin<?,?> parentTraversal)
Description copied from interface:Step
Set theTraversal
that this step is contained within.- Specified by:
setTraversal
in interfaceStep<S,E>
- Overrides:
setTraversal
in classAbstractStep<S,E>
- Parameters:
parentTraversal
- the new traversal for this step
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toString
public String toString()
- Overrides:
toString
in classAbstractStep<S,E>
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hashCode
public int hashCode()
- Overrides:
hashCode
in classAbstractStep<S,E>
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getRequirements
public Set<TraverserRequirement> getRequirements()
Description copied from interface:Step
Provide the necessaryTraverserRequirement
that must be met by the traverser in order for the step to function properly. The provided default implements returns an empty set.- Specified by:
getRequirements
in interfaceStep<S,E>
- Returns:
- the set of requirements
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