Package org.umlg.sqlg.step.barrier

Class SqlgFoldStep<S,E>

java.lang.Object

org.umlg.sqlg.step.SqlgAbstractStep<S,E>

org.umlg.sqlg.step.barrier.SqlgReducingStepBarrier<S,E>

org.umlg.sqlg.step.barrier.SqlgFoldStep<S,E>

All Implemented Interfaces:

Serializable, Cloneable, Iterator<org.apache.tinkerpop.gremlin.process.traversal.Traverser.Admin<E>>, org.apache.tinkerpop.gremlin.process.traversal.Step<S,E>

public class SqlgFoldStep<S,E>
extends SqlgReducingStepBarrier<S,E>

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	SqlgFoldStep.FoldBiOperator<E>

Field Summary

Fields inherited from class org.umlg.sqlg.step.SqlgAbstractStep

starts

Constructor Summary

Constructors

Constructor	Description
SqlgFoldStep(org.apache.tinkerpop.gremlin.process.traversal.Traversal.Admin traversal, Supplier<E> seed, boolean listFold, BinaryOperator<E> reducingBiOperator)

Method Summary

Modifier and Type	Method	Description
Set<org.apache.tinkerpop.gremlin.process.traversal.traverser.TraverserRequirement>	getRequirements()
boolean	isListFold()
E	reduce(E a, S b)

Methods inherited from class org.umlg.sqlg.step.barrier.SqlgReducingStepBarrier

hasStarts, processNextStart, produceFinalResult, reset, setSeedSupplier

Methods inherited from class org.umlg.sqlg.step.SqlgAbstractStep

addLabel, addStart, addStarts, clearLabels, clone, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hashCode, hasNext, next, removeLabel, setId, setNextStep, setPreviousStep, setTraversal, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.Step

equals

Constructor Details

SqlgFoldStep

public SqlgFoldStep(org.apache.tinkerpop.gremlin.process.traversal.Traversal.Admin traversal,
 Supplier<E> seed,
 boolean listFold,
 BinaryOperator<E> reducingBiOperator)

Method Details

reduce

public E reduce(E a,
 S b)

Overrides:

reduce in class SqlgReducingStepBarrier<S,E>

getRequirements

public Set<org.apache.tinkerpop.gremlin.process.traversal.traverser.TraverserRequirement> getRequirements()

isListFold

public boolean isListFold()