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

    All Methods Instance Methods Concrete Methods
    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, getStarts, getTraversal, hasNext, isTraverserStepIdAndLabelsSetByChild, next, prepareTraversalForNextStep, 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>`

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