org.apache.tinkerpop.gremlin.process.traversal.step.map

Class GroupStepV3d0<S,K,V,R>

java.lang.Object

org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep<S,E>

org.apache.tinkerpop.gremlin.process.traversal.step.util.ReducingBarrierStep<S,Map<K,R>>

org.apache.tinkerpop.gremlin.process.traversal.step.map.GroupStepV3d0<S,K,V,R>

All Implemented Interfaces:

Serializable, AutoCloseable, Cloneable, Iterator<Traverser.Admin<Map<K,R>>>, Step<S,Map<K,R>>, Barrier<Map<K,R>>, ByModulating, Generating<Map<K,R>,Map<K,R>>, MemoryComputing<Map<K,R>>, TraversalParent

Deprecated.

As of release 3.1.0, replaced by GroupStep.

public final class GroupStepV3d0<S,K,V,R>
extends ReducingBarrierStep<S,Map<K,R>>
implements TraversalParent, ByModulating

Author:

Marko A. Rodriguez (http://markorodriguez.com)

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	GroupStepV3d0.GroupBiOperatorV3d0<K,V> Deprecated.

Field Summary

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.ReducingBarrierStep

reducingBiOperator, seedSupplier

Fields inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep

id, labels, nextEnd, nextStep, previousStep, starts, traversal, traverserStepIdAndLabelsSetByChild

Constructor Summary

Constructors

Constructor and Description
GroupStepV3d0(Traversal.Admin traversal) Deprecated.

Method Summary

Modifier and Type	Method and Description
GroupStepV3d0<S,K,V,R>	clone() Deprecated. Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication.
Map<K,R>	generateFinalResult(Map<K,R> valueMap) Deprecated. Post-process the side-effect and return the post-processed side-effect.
<A,B> List<Traversal.Admin<A,B>>	getLocalChildren() Deprecated.
Set<TraverserRequirement>	getRequirements() Deprecated. Provide the necessary TraverserRequirement that must be met by the traverser in order for the step to function properly.
int	hashCode() Deprecated.
void	modulateBy(Traversal.Admin<?,?> kvrTraversal) Deprecated.
Map<K,R>	projectTraverser(Traverser.Admin<S> traverser) Deprecated.
void	setTraversal(Traversal.Admin<?,?> parentTraversal) Deprecated. Set the Traversal that this step is contained within.
String	toString() Deprecated.

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.ReducingBarrierStep

addBarrier, done, getBiOperator, getMemoryComputeKey, getSeedSupplier, hasNextBarrier, nextBarrier, processAllStarts, processNextStart, reset, setReducingBiOperator, setSeedSupplier

Methods inherited from class org.apache.tinkerpop.gremlin.process.traversal.step.util.AbstractStep

addLabel, addStart, addStarts, equals, getId, getLabels, getNextStep, getPreviousStep, getTraversal, hasNext, next, removeLabel, setId, setNextStep, setPreviousStep

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.step.TraversalParent

addGlobalChild, addLocalChild, asStep, close, getGlobalChildren, getSelfAndChildRequirements, integrateChild, removeGlobalChild, removeLocalChild

Methods inherited from interface org.apache.tinkerpop.gremlin.process.traversal.step.ByModulating

modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy, modulateBy

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

equals

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Detail

GroupStepV3d0

public GroupStepV3d0(Traversal.Admin traversal)

Deprecated.

Method Detail

projectTraverser

public Map<K,R> projectTraverser(Traverser.Admin<S> traverser)

Deprecated.

Specified by:

projectTraverser in class ReducingBarrierStep<S,Map<K,R>>

toString

public String toString()

Deprecated.

Overrides:

toString in class AbstractStep<S,Map<K,R>>

generateFinalResult

public Map<K,R> generateFinalResult(Map<K,R> valueMap)

Deprecated.

Description copied from interface: Generating

Post-process the side-effect and return the post-processed side-effect. The default implementation is simply the identity function and returns the argument.

Specified by:

generateFinalResult in interface Generating<Map<K,R>,Map<K,R>>

Parameters:

valueMap - the pre-processed side-effect.

Returns:

the post-processed side-effect.

getLocalChildren

public <A,B> List<Traversal.Admin<A,B>> getLocalChildren()

Deprecated.

Specified by:

getLocalChildren in interface TraversalParent

modulateBy

public void modulateBy(Traversal.Admin<?,?> kvrTraversal)

Deprecated.

Specified by:

modulateBy in interface ByModulating

getRequirements

public Set<TraverserRequirement> getRequirements()

Deprecated.

Description copied from interface: Step

Provide the necessary TraverserRequirement 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 interface Step<S,Map<K,R>>

Returns:

the set of requirements

clone

public GroupStepV3d0<S,K,V,R> clone()

Deprecated.

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 when reset() is called. Moreover, the previous and next steps should be set to EmptyStep.

Specified by:

clone in interface Step<S,Map<K,R>>

Overrides:

clone in class ReducingBarrierStep<S,Map<K,R>>

Returns:

The cloned step

setTraversal

public void setTraversal(Traversal.Admin<?,?> parentTraversal)

Deprecated.

Description copied from interface: Step

Set the Traversal that this step is contained within.

Specified by:

setTraversal in interface Step<S,Map<K,R>>

Overrides:

setTraversal in class AbstractStep<S,Map<K,R>>

Parameters:

parentTraversal - the new traversal for this step

hashCode

public int hashCode()

Deprecated.

Overrides:

hashCode in class AbstractStep<S,Map<K,R>>