Uses of Interface
org.apache.tinkerpop.gremlin.process.traversal.Step

Packages that use Step

Package	Description
org.apache.tinkerpop.gremlin.process.computer.traversal.step.map
org.apache.tinkerpop.gremlin.process.computer.traversal.strategy.optimization
org.apache.tinkerpop.gremlin.process.remote.traversal
org.apache.tinkerpop.gremlin.process.remote.traversal.step.map
org.apache.tinkerpop.gremlin.process.traversal
org.apache.tinkerpop.gremlin.process.traversal.dsl.graph
org.apache.tinkerpop.gremlin.process.traversal.lambda
org.apache.tinkerpop.gremlin.process.traversal.step
org.apache.tinkerpop.gremlin.process.traversal.step.branch
org.apache.tinkerpop.gremlin.process.traversal.step.filter
org.apache.tinkerpop.gremlin.process.traversal.step.map
org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect
org.apache.tinkerpop.gremlin.process.traversal.step.util
org.apache.tinkerpop.gremlin.process.traversal.strategy.finalization
org.apache.tinkerpop.gremlin.process.traversal.traverser
org.apache.tinkerpop.gremlin.process.traversal.traverser.util
org.apache.tinkerpop.gremlin.process.traversal.util
org.apache.tinkerpop.gremlin.structure.util
org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.map
org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.sideEffect
org.apache.tinkerpop.gremlin.util.function

Uses of Step in org.apache.tinkerpop.gremlin.process.computer.traversal.step.map

Classes in org.apache.tinkerpop.gremlin.process.computer.traversal.step.map that implement Step

Modifier and Type	Class	Description
class	ComputerResultStep<S>
class	ConnectedComponentVertexProgramStep
class	PageRankVertexProgramStep
class	PeerPressureVertexProgramStep
class	ProgramVertexProgramStep
class	ShortestPathVertexProgramStep
class	TraversalVertexProgramStep
class	VertexProgramStep

Uses of Step in org.apache.tinkerpop.gremlin.process.computer.traversal.strategy.optimization

Methods in org.apache.tinkerpop.gremlin.process.computer.traversal.strategy.optimization with parameters of type Step

Modifier and Type	Method	Description
static boolean	MessagePassingReductionStrategy.endsWithElement(Step<?,?> currentStep)

Uses of Step in org.apache.tinkerpop.gremlin.process.remote.traversal

Methods in org.apache.tinkerpop.gremlin.process.remote.traversal that return types with arguments of type Step

Modifier and Type	Method	Description
List<Step>	AbstractRemoteTraversal.getSteps()

Methods in org.apache.tinkerpop.gremlin.process.remote.traversal with parameters of type Step

Modifier and Type	Method	Description
<S2,E2> Traversal.Admin<S2,E2>	AbstractRemoteTraversal.addStep(int index, Step<?,?> step)

Uses of Step in org.apache.tinkerpop.gremlin.process.remote.traversal.step.map

Classes in org.apache.tinkerpop.gremlin.process.remote.traversal.step.map that implement Step

Modifier and Type	Class	Description
class	RemoteStep<S,E>	Sends a Traversal to a RemoteConnection and iterates back the results.

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal

Methods in org.apache.tinkerpop.gremlin.process.traversal that return Step

Modifier and Type	Method	Description
Step<S,E>	Step.clone()	Cloning is used to duplicate steps for the purpose of traversal optimization and OLTP replication.
default Step<?,E>	Traversal.Admin.getEndStep()	Get the end/tail of the traversal.
Step<E,?>	Step.getNextStep()	Get the next step to the current step.
Step<?,S>	Step.getPreviousStep()	Get the step prior to the current step.
default Step<S,?>	Traversal.Admin.getStartStep()	Get the start/head of the traversal.

Methods in org.apache.tinkerpop.gremlin.process.traversal that return types with arguments of type Step

Modifier and Type	Method	Description
List<Step>	Traversal.Admin.getSteps()	Get the Step instances associated with this traversal.

Methods in org.apache.tinkerpop.gremlin.process.traversal with parameters of type Step

Modifier and Type	Method	Description
<S2,E2> Traversal.Admin<S2,E2>	Traversal.Admin.addStep(int index, Step<?,?> step)	Add a Step to an arbitrary point in the traversal.
default <E2> Traversal.Admin<S,E2>	Traversal.Admin.addStep(Step<?,E2> step)	Add a Step to the end of the traversal.
default boolean	Step.equals(Step other, boolean compareIds)	Compare the current step with another step.
<S> Traverser.Admin<S>	TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
default <S> Iterator<Traverser.Admin<S>>	TraverserGenerator.generateIterator(Iterator<S> starts, Step<S,?> startStep, long initialBulk)
default <S2,E2> Traversal.Admin<S2,E2>	Traversal.Admin.removeStep(Step<?,?> step)	Remove a Step from the traversal.
void	Step.setNextStep(Step<E,?> step)	Set the step that is next to the current step.
void	Step.setPreviousStep(Step<?,S> step)	Set the step that is previous to the current step.
<R> Traverser.Admin<R>	Traverser.Admin.split(R r, Step<T,R> step)	Generate a child traverser of the current traverser for current as step and new object location.

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.dsl.graph

Methods in org.apache.tinkerpop.gremlin.process.traversal.dsl.graph with parameters of type Step

Modifier and Type	Method	Description
default <E2> GraphTraversal.Admin<S,E2>	GraphTraversal.Admin.addStep(Step<?,E2> step)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.lambda

Methods in org.apache.tinkerpop.gremlin.process.traversal.lambda that return types with arguments of type Step

Modifier and Type	Method	Description
List<Step>	AbstractLambdaTraversal.getSteps()

Methods in org.apache.tinkerpop.gremlin.process.traversal.lambda with parameters of type Step

Modifier and Type	Method	Description
<S2,E2> Traversal.Admin<S2,E2>	AbstractLambdaTraversal.addStep(int index, Step<?,?> step)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.step

Methods in org.apache.tinkerpop.gremlin.process.traversal.step that return Step

Modifier and Type	Method	Description
default Step<?,?>	TraversalParent.asStep()

Methods in org.apache.tinkerpop.gremlin.process.traversal.step with parameters of type Step

Modifier and Type	Method	Description
static void	GraphComputing.atMaster(Step<?,?> step, boolean atMaster)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.step.branch

Classes in org.apache.tinkerpop.gremlin.process.traversal.step.branch that implement Step

Modifier and Type	Class	Description
class	BranchStep<S,E,M>
class	ChooseStep<S,E,M>	A step which offers a choice of two or more Traversals to take.
class	LocalStep<S,E>
class	OptionalStep<S>
class	RepeatStep<S>
static class	RepeatStep.RepeatEndStep<S>
class	UnionStep<S,E>

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.step.filter

Classes in org.apache.tinkerpop.gremlin.process.traversal.step.filter that implement Step

Modifier and Type	Class	Description
class	AndStep<S>
class	ClassFilterStep<S,T>
class	CoinStep<S>
class	ConnectiveStep<S>
class	DedupGlobalStep<S>
class	DropStep<S>
class	FilterStep<S>
class	HasStep<S extends Element>
class	IsStep<S>
class	LambdaFilterStep<S>
class	NoneStep<S>
class	NotStep<S>
class	OrStep<S>
class	PathFilterStep<S>
class	RangeGlobalStep<S>
class	SampleGlobalStep<S>
class	TailGlobalStep<S>
class	TimeLimitStep<S>
class	TraversalFilterStep<S>
class	WherePredicateStep<S>
class	WhereTraversalStep<S>
static class	WhereTraversalStep.WhereEndStep
static class	WhereTraversalStep.WhereStartStep<S>

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.step.map

Classes in org.apache.tinkerpop.gremlin.process.traversal.step.map that implement Step

Modifier and Type	Class	Description
class	AddEdgeStartStep
class	AddEdgeStep<S>
class	AddVertexStartStep
class	AddVertexStep<S>
class	CoalesceStep<S,E>
class	ConstantStep<S,E>
class	CountGlobalStep<S>
class	CountLocalStep<S>
class	DedupLocalStep<E,S extends Iterable<E>>
class	EdgeOtherVertexStep
class	EdgeVertexStep
class	ElementMapStep<K,E>	Converts a Element to a Map.
class	FlatMapStep<S,E>
class	FoldStep<S,E>
class	GraphStep<S,E extends Element>
class	GroupCountStep<S,E>
class	GroupStep<S,K,V>
class	HasNextStep<S>
class	IdStep<S extends Element>
class	IndexStep<S,E>
class	LabelStep<S extends Element>
class	LambdaCollectingBarrierStep<S>
class	LambdaFlatMapStep<S,E>
class	LambdaMapStep<S,E>
class	LoopsStep<S>
class	MapStep<S,E>	A marker base class that designates an extending Step as a "Map" step which will transform the object of one Traverser into another.
class	MatchStep<S,E>
static class	MatchStep.MatchEndStep
static class	MatchStep.MatchStartStep
class	MathStep<S>
class	MaxGlobalStep<S extends Comparable>
class	MaxLocalStep<E extends Comparable,S extends Iterable<E>>
class	MeanGlobalStep<S extends Number,E extends Number>
class	MeanLocalStep<E extends Number,S extends Iterable<E>>
class	MinGlobalStep<S extends Comparable>
class	MinLocalStep<E extends Comparable,S extends Iterable<E>>
class	NoOpBarrierStep<S>
class	OrderGlobalStep<S,C extends Comparable>
class	OrderLocalStep<S,C extends Comparable>
class	PathStep<S>
static class	ProfileTest.MockStep	ProfileStrategy callback test.
class	ProjectStep<S,E>
class	PropertiesStep<E>
class	PropertyKeyStep
class	PropertyMapStep<K,E>
class	PropertyValueStep<E>
class	RangeLocalStep<S>
class	SackStep<S,E>
class	SampleLocalStep<S>
class	ScalarMapStep<S,E>	A type of MapStep class which will transform the object of one Traverser into another.
class	SelectOneStep<S,E>
class	SelectStep<S,E>
class	SumGlobalStep<S extends Number>
class	SumLocalStep<E extends Number,S extends Iterable<E>>
class	TailLocalStep<S>
class	TraversalFlatMapStep<S,E>
class	TraversalMapStep<S,E>
class	TraversalSelectStep<S,E>
class	TreeStep<S>
class	UnfoldStep<S,E>
class	VertexStep<E extends Element>

Methods in org.apache.tinkerpop.gremlin.process.traversal.step.map with parameters of type Step

Modifier and Type	Method	Description
static boolean	GraphStep.isStartStep(Step<?,?> step)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect

Classes in org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect that implement Step

Modifier and Type	Class	Description
class	AddPropertyStep<S extends Element>
class	AggregateGlobalStep<S>
class	AggregateLocalStep<S>
class	GroupCountSideEffectStep<S,E>
class	GroupSideEffectStep<S,K,V>
class	IdentityStep<S>
class	InjectStep<S>
class	IoStep<S>	Handles read and write operations into the Graph.
class	LambdaSideEffectStep<S>
class	ProfileSideEffectStep<S>
class	SackValueStep<S,A,B>
class	SideEffectCapStep<S,E>
class	SideEffectStep<S>
class	StartStep<S>
class	SubgraphStep	A side-effect step that produces an edge induced subgraph.
class	TraversalSideEffectStep<S>
class	TreeSideEffectStep<S>

Methods in org.apache.tinkerpop.gremlin.process.traversal.step.sideEffect with parameters of type Step

Modifier and Type	Method	Description
static boolean	StartStep.isVariableStartStep(Step<?,?> step)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.step.util

Classes in org.apache.tinkerpop.gremlin.process.traversal.step.util that implement Step

Modifier and Type	Class	Description
class	AbstractStep<S,E>
class	CollectingBarrierStep<S>
class	ComputerAwareStep<S,E>
static class	ComputerAwareStep.EndStep<S>
class	EmptyStep<S,E>
class	ProfileStep<S>
class	ReducingBarrierStep<S,E>
class	RequirementsStep<S>
class	SupplyingBarrierStep<S,E>

Fields in org.apache.tinkerpop.gremlin.process.traversal.step.util declared as Step

Modifier and Type	Field	Description
protected Step<E,?>	AbstractStep.nextStep
protected Step<?,S>	AbstractStep.previousStep

Methods in org.apache.tinkerpop.gremlin.process.traversal.step.util that return Step

Modifier and Type	Method	Description
Step<E,?>	AbstractStep.getNextStep()
Step<E,?>	EmptyStep.getNextStep()
Step<?,S>	AbstractStep.getPreviousStep()
Step<?,S>	EmptyStep.getPreviousStep()

Methods in org.apache.tinkerpop.gremlin.process.traversal.step.util with parameters of type Step

Modifier and Type	Method	Description
void	AbstractStep.setNextStep(Step<E,?> step)
void	EmptyStep.setNextStep(Step<E,?> step)
void	AbstractStep.setPreviousStep(Step<?,S> step)
void	EmptyStep.setPreviousStep(Step<?,S> step)

Constructors in org.apache.tinkerpop.gremlin.process.traversal.step.util with parameters of type Step

Constructor	Description
ExpandableStepIterator(Step<S,?> hostStep)
ExpandableStepIterator(Step<S,?> hostStep, TraverserSet<S> traverserSet)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.strategy.finalization

Classes in org.apache.tinkerpop.gremlin.process.traversal.strategy.finalization that implement Step

Modifier and Type	Class	Description
static class	ReferenceElementStrategy.ReferenceElementStep<S,E>

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.traverser

Methods in org.apache.tinkerpop.gremlin.process.traversal.traverser with parameters of type Step

Modifier and Type	Method	Description
<S> Traverser.Admin<S>	B_LP_NL_O_P_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	B_LP_NL_O_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	B_LP_O_P_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	B_LP_O_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	B_NL_O_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	B_O_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	B_O_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	LP_NL_O_OB_P_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	LP_NL_O_OB_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	LP_O_OB_P_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	LP_O_OB_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	NL_O_OB_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<S> Traverser.Admin<S>	O_OB_S_SE_SL_TraverserGenerator.generate(S start, Step<S,?> startStep, long initialBulk)
<R> Traverser.Admin<R>	B_LP_NL_O_P_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	B_LP_NL_O_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	B_LP_O_P_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	B_LP_O_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	B_NL_O_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	B_O_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	LP_NL_O_OB_P_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	LP_NL_O_OB_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	LP_O_OB_P_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	LP_O_OB_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	NL_O_OB_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	O_OB_S_SE_SL_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	O_Traverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	ProjectedTraverser.split(R r, Step<T,R> step)

Constructors in org.apache.tinkerpop.gremlin.process.traversal.traverser with parameters of type Step

Constructor	Description
B_LP_NL_O_P_S_SE_SL_Traverser(T t, Step<T,?> step, long initialBulk)
B_LP_NL_O_S_SE_SL_Traverser(T t, Step<T,?> step, long initialBulk)
B_LP_O_P_S_SE_SL_Traverser(T t, Step<T,?> step, long initialBulk)
B_LP_O_S_SE_SL_Traverser(T t, Step<T,?> step, long initialBulk)
B_NL_O_S_SE_SL_Traverser(T t, Step<T,?> step, long initialBulk)
B_O_S_SE_SL_Traverser(T t, Step<T,?> step, long initialBulk)
LP_NL_O_OB_P_S_SE_SL_Traverser(T t, Step<T,?> step)
LP_NL_O_OB_S_SE_SL_Traverser(T t, Step<T,?> step)
LP_O_OB_P_S_SE_SL_Traverser(T t, Step<T,?> step)
LP_O_OB_S_SE_SL_Traverser(T t, Step<T,?> step)
NL_O_OB_S_SE_SL_Traverser(T t, Step<T,?> step)
O_OB_S_SE_SL_Traverser(T t, Step<T,?> step)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.traverser.util

Methods in org.apache.tinkerpop.gremlin.process.traversal.traverser.util with parameters of type Step

Modifier and Type	Method	Description
<R> Traverser.Admin<R>	AbstractTraverser.split(R r, Step<T,R> step)
<R> Traverser.Admin<R>	EmptyTraverser.split(R r, Step<T,R> step)

Uses of Step in org.apache.tinkerpop.gremlin.process.traversal.util

Fields in org.apache.tinkerpop.gremlin.process.traversal.util with type parameters of type Step

Modifier and Type	Field	Description
protected List<Step>	DefaultTraversal.steps
protected List<Step>	DefaultTraversal.unmodifiableSteps

Methods in org.apache.tinkerpop.gremlin.process.traversal.util with type parameters of type Step

Modifier and Type	Method	Description
<A,B,C extends Step<A,B>> C	TraversalMatrix.getStepById(String stepId)

Methods in org.apache.tinkerpop.gremlin.process.traversal.util that return Step

Modifier and Type	Method	Description
Step<?,E>	DefaultTraversal.getEndStep()
Step<S,?>	DefaultTraversal.getStartStep()
static <S,E> Step<?,E>	TraversalHelper.insertTraversal(int insertIndex, Traversal.Admin<S,E> insertTraversal, Traversal.Admin<?,?> traversal)
static <S,E> Step<?,E>	TraversalHelper.insertTraversal(Step<?,S> previousStep, Traversal.Admin<S,E> insertTraversal, Traversal.Admin<?,?> traversal)

Methods in org.apache.tinkerpop.gremlin.process.traversal.util that return types with arguments of type Step

Modifier and Type	Method	Description
List<Step>	DefaultTraversal.getSteps()
List<Step>	EmptyTraversal.getSteps()

Methods in org.apache.tinkerpop.gremlin.process.traversal.util with parameters of type Step

Modifier and Type	Method	Description
<S2,E2> Traversal.Admin<S2,E2>	DefaultTraversal.addStep(int index, Step<?,?> step)
<S2,E2> Traversal.Admin<S2,E2>	EmptyTraversal.addStep(int index, Step<?,?> step)
<E2> Traversal.Admin<S,E2>	EmptyTraversal.addStep(Step<?,E2> step)
static void	TraversalHelper.copyLabels(Step<?,?> fromStep, Step<?,?> toStep, boolean moveLabels)
static Set<String>	PathUtil.getReferencedLabels(Step step)
static Set<String>	PathUtil.getReferencedLabelsAfterStep(Step<?,?> step)
static String	TraversalHelper.getShortName(Step step, int maxLength)	Returns the name of step truncated to maxLength.
static <S,E> void	TraversalHelper.insertAfterStep(Step<S,E> insertStep, Step<?,S> beforeStep, Traversal.Admin<?,?> traversal)	Insert a step after a specified step instance.
static <S,E> void	TraversalHelper.insertBeforeStep(Step<S,E> insertStep, Step<E,?> afterStep, Traversal.Admin<?,?> traversal)	Insert a step before a specified step instance.
static <S,E> Step<?,E>	TraversalHelper.insertTraversal(Step<?,S> previousStep, Traversal.Admin<S,E> insertTraversal, Traversal.Admin<?,?> traversal)
static <S,E> void	TraversalHelper.removeToTraversal(Step<S,?> startStep, Step<?,E> endStep, Traversal.Admin<S,E> newTraversal)
static <S,E> void	TraversalHelper.replaceStep(Step<S,E> removeStep, Step<S,E> insertStep, Traversal.Admin<?,?> traversal)	Replace a step with a new step.
static <S,E> int	TraversalHelper.stepIndex(Step<S,E> step, Traversal.Admin<?,?> traversal)	Gets the index of a particular step in the Traversal.

Method parameters in org.apache.tinkerpop.gremlin.process.traversal.util with type arguments of type Step

Modifier and Type	Method	Description
static boolean	TraversalHelper.anyStepRecursively(Predicate<Step> predicate, TraversalParent step)	Determine if any child step of a TraversalParent match the step given the provided Predicate.
static boolean	TraversalHelper.anyStepRecursively(Predicate<Step> predicate, Traversal.Admin<?,?> traversal)	Determine if any step in Traversal or its children match the step given the provided Predicate.

Uses of Step in org.apache.tinkerpop.gremlin.structure.util

Methods in org.apache.tinkerpop.gremlin.structure.util with parameters of type Step

Modifier and Type	Method	Description
static String	StringFactory.stepString(Step<?,?> step, Object... arguments)

Uses of Step in org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.map

Classes in org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.map that implement Step

Modifier and Type	Class	Description
class	TinkerCountGlobalStep<S extends Element>

Uses of Step in org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.sideEffect

Classes in org.apache.tinkerpop.gremlin.tinkergraph.process.traversal.step.sideEffect that implement Step

Modifier and Type	Class	Description
class	TinkerGraphStep<S,E extends Element>

Uses of Step in org.apache.tinkerpop.gremlin.util.function

Constructors in org.apache.tinkerpop.gremlin.util.function with parameters of type Step

Constructor	Description
MutableMetricsSupplier(Step<?,?> previousStep)