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

Class ProgramVertexProgramStep

java.lang.Object

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

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

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

All Implemented Interfaces:

Serializable, Cloneable, Iterator<Traverser.Admin<ComputerResult>>, VertexComputing, Step<ComputerResult,ComputerResult>

public final class ProgramVertexProgramStep
extends VertexProgramStep

Author:

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

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.tinkerpop.gremlin.process.computer.traversal.step.map.VertexProgramStep

computer, first, ROOT_TRAVERSAL, STEP_ID

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
ProgramVertexProgramStep(Traversal.Admin traversal, VertexProgram vertexProgram)

Method Summary

Modifier and Type	Method and Description
VertexProgram	generateProgram(Graph graph, Memory memory) Generate the VertexProgram.
Set<TraverserRequirement>	getRequirements() Provide the necessary TraverserRequirement that must be met by the traverser in order for the step to function properly.
int	hashCode()
String	toString()

Methods inherited from class org.apache.tinkerpop.gremlin.process.computer.traversal.step.map.VertexProgramStep

getComputer, isEndStep, previousTraversalVertexProgram, processNextStart, setComputer

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

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

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

equals

Methods inherited from interface java.util.Iterator

forEachRemaining, remove

Constructor Detail

ProgramVertexProgramStep

public ProgramVertexProgramStep(Traversal.Admin traversal,
                                VertexProgram vertexProgram)

Method Detail

generateProgram

public VertexProgram generateProgram(Graph graph,
                                     Memory memory)

Description copied from interface: VertexComputing

Generate the VertexProgram.

Parameters:

graph - the Graph that the program will be executed over.

memory - the Memory from the previous OLAP job if it exists, else its an empty memory structure.

Returns:

the generated vertex program instance.

getRequirements

public Set<TraverserRequirement> getRequirements()

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.

Returns:

the set of requirements

hashCode

public int hashCode()

Overrides:

hashCode in class AbstractStep<ComputerResult,ComputerResult>

toString

public String toString()

Overrides:

toString in class AbstractStep<ComputerResult,ComputerResult>