Package weka.knowledgeflow.steps

# Class Dummy

java.lang.Object
weka.knowledgeflow.steps.BaseStep
weka.knowledgeflow.steps.Dummy

All Implemented Interfaces:
  `Serializable`, `BaseStepExtender`, `Step`

@KFStep(name="Dummy", category="Misc", toolTipText="A step that is the equivalent of /dev/null", iconPath="weka/gui/knowledgeflow/icons/DiamondPlain.gif") public class Dummy extends BaseStep
A "dummy" no-op step

Version:
  $Revision: $
Author:
  Mark Hall (mhall{[at]}pentaho{[dot]}com)
See Also:
  - Serialized Form

- ## Constructor Summary

  Constructors
  Constructor
  Description
  `Dummy()`

- ## Method Summary

  Modifier and Type
  Method
  Description
  `List<String>`
  `getIncomingConnectionTypes()`
  Get a list of incoming connection types that this step can accept.
  `List<String>`
  `getOutgoingConnectionTypes()`
  Get a list of outgoing connection types that this step can produce.
  `void`
  `stepInit()`
  Initialize the step.

  ### Methods inherited from class weka.knowledgeflow.steps.BaseStep

  `environmentSubstitute, getCustomEditorForStep, getDefaultSettings, getInteractiveViewers, getInteractiveViewersImpls, getName, getStepManager, globalInfo, isResourceIntensive, isStopRequested, outputStructureForConnectionType, outputStructureForConnectionType, processIncoming, setName, setStepIsResourceIntensive, setStepManager, setStepMustRunSingleThreaded, start, stepMustRunSingleThreaded, stop`

  ### Methods inherited from class java.lang.Object

  `equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- ## Constructor Details

  - ### Dummy

    public Dummy()

- ## Method Details

  - ### stepInit

    public void stepInit() throws WekaException
    Initialize the step.
    Throws:
      `WekaException` - if a problem occurs during initialization

  - ### getIncomingConnectionTypes

    public List<String> getIncomingConnectionTypes()
    Get a list of incoming connection types that this step can accept. Ideally (and if appropriate), this should take into account the state of the step and any existing incoming connections. E.g. a step might be able to accept one (and only one) incoming batch data connection.
    Returns:
      a list of incoming connections that this step can accept given its current state

  - ### getOutgoingConnectionTypes

    public List<String> getOutgoingConnectionTypes()
    Get a list of outgoing connection types that this step can produce. Ideally (and if appropriate), this should take into account the state of the step and the incoming connections. E.g. depending on what incoming connection is present, a step might be able to produce a trainingSet output, a testSet output or neither, but not both.
    Returns:
      a list of outgoing connections that this step can produce