com.rapidminer.operator.preprocessing.filter
Class ExchangeAttributeRoles

java.lang.Object
  com.rapidminer.tools.AbstractObservable<Operator>
      com.rapidminer.operator.Operator
          com.rapidminer.operator.AbstractExampleSetProcessing
              com.rapidminer.operator.preprocessing.AbstractDataProcessing
                  com.rapidminer.operator.preprocessing.filter.ExchangeAttributeRoles

All Implemented Interfaces:

ConfigurationListener, PreviewListener, ResourceConsumer, ParameterHandler, LoggingHandler, Observable<Operator>

public class ExchangeAttributeRoles
extends AbstractDataProcessing

This operator changes the attribute roles of two input attributes. This could for example be useful to exchange the roles of a label with a regular attribute (and vice versa), or a label with a batch attribute, a label with a cluster etc.

Author:

Ingo Mierswa

Field Summary

static java.lang.String	PARAMETER_FIRST_ATTRIBUTE
static java.lang.String	PARAMETER_SECOND_ATTRIBUTE

Constructor Summary

ExchangeAttributeRoles(OperatorDescription description)

Method Summary

ExampleSet	apply(ExampleSet exampleSet) Delegate for the apply method.
java.util.List<ParameterType>	getParameterTypes() Returns a list of ParameterTypes describing the parameters of this operator.
ResourceConsumptionEstimator	getResourceConsumptionEstimator() Subclasses can override this method if they are able to estimate the consumed resources (CPU time and memory), based on their input.
protected MetaData	modifyMetaData(ExampleSetMetaData metaData) Subclasses might override this method to define the meta data transformation performed by this operator.
boolean	writesIntoExistingData() This method indicates whether the operator will perform a write operation on a cell in an existing column of the example set's ExampleTable.

Methods inherited from class com.rapidminer.operator.AbstractExampleSetProcessing

doWork, getExampleSetInputPort, getExampleSetOutputPort, getInputPort, getRequiredMetaData, shouldAutoConnect

Methods inherited from class com.rapidminer.operator.Operator

acceptsInput, addError, addError, addValue, addWarning, apply, apply, assumePreconditionsSatisfied, checkAll, checkAllExcludingMetaData, checkDeprecations, checkForStop, checkIO, checkProperties, clear, clearErrorList, cloneOperator, collectErrors, createExperimentTree, createExperimentTree, createFromXML, createFromXML, createFromXML, createMarkedExperimentTree, createMarkedProcessTree, createProcessTree, createProcessTree, disconnectPorts, execute, fireUpdate, freeMemory, getAddOnlyAdditionalOutput, getApplyCount, getCompatibilityLevel, getDeliveredOutputClasses, getDeprecationInfo, getDesiredInputClasses, getDOMRepresentation, getEncoding, getErrorList, getExecutionUnit, getExperiment, getIncompatibleVersionChanges, getInput, getInput, getInput, getInputClasses, getInputDescription, getInputPorts, getIODescription, getLog, getLogger, getName, getNumberOfBreakpoints, getOperatorClassName, getOperatorDescription, getOutputClasses, getOutputPorts, getParameter, getParameterAsBoolean, getParameterAsChar, getParameterAsColor, getParameterAsDouble, getParameterAsFile, getParameterAsFile, getParameterAsInputStream, getParameterAsInt, getParameterAsMatrix, getParameterAsRepositoryLocation, getParameterAsString, getParameterHandler, getParameterList, getParameters, getParameterTupel, getParameterType, getParent, getPortOwner, getProcess, getRoot, getStartTime, getTransformer, getUserDescription, getValue, getValues, getXML, getXML, getXML, hasBreakpoint, hasBreakpoint, hasInput, inApplyLoop, isDebugMode, isDirty, isEnabled, isExpanded, isParallel, isParameterSet, isRunning, log, log, logError, logNote, logWarning, lookupOperator, makeDirty, makeDirtyOnUpdate, notifyRenaming, performAdditionalChecks, preAutoWire, processFinished, processStarts, producesOutput, propagateDirtyness, register, registerOperator, remove, removeAndKeepConnections, rename, resume, setBreakpoint, setCompatibilityLevel, setEnabled, setEnclosingProcess, setExpanded, setInput, setListParameter, setPairParameter, setParameter, setParameters, setUserDescription, shouldAutoConnect, shouldStopStandaloneExecution, toString, transformMetaData, unregisterOperator, updateExecutionOrder, walk, writeXML, writeXML

Methods inherited from class com.rapidminer.tools.AbstractObservable

addObserver, addObserverAsFirst, fireUpdate, removeObserver

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

PARAMETER_FIRST_ATTRIBUTE

public static final java.lang.String PARAMETER_FIRST_ATTRIBUTE

See Also:

Constant Field Values

PARAMETER_SECOND_ATTRIBUTE

public static final java.lang.String PARAMETER_SECOND_ATTRIBUTE

See Also:

Constant Field Values

Constructor Detail

ExchangeAttributeRoles

public ExchangeAttributeRoles(OperatorDescription description)

Method Detail

modifyMetaData

protected MetaData modifyMetaData(ExampleSetMetaData metaData)

Description copied from class: AbstractExampleSetProcessing

Subclasses might override this method to define the meta data transformation performed by this operator.

Overrides:

modifyMetaData in class AbstractExampleSetProcessing

apply

public ExampleSet apply(ExampleSet exampleSet)
                 throws OperatorException

Description copied from class: AbstractExampleSetProcessing

Delegate for the apply method. The given ExampleSet is already a clone of the input example set so that changing this examples set does not affect the original one. Subclasses should avoid cloning again unnecessarily.

Specified by:

apply in class AbstractExampleSetProcessing

Throws:

OperatorException

getParameterTypes

public java.util.List<ParameterType> getParameterTypes()

Description copied from class: Operator

Returns a list of ParameterTypes describing the parameters of this operator. The default implementation returns an empty list if no input objects can be retained and special parameters for those input objects which can be prevented from being consumed. ATTENTION! This will create new parameterTypes. For calling already existing parameter types use getParameters().getParameterTypes();

Specified by:

getParameterTypes in interface ParameterHandler

Overrides:

getParameterTypes in class Operator

writesIntoExistingData

public boolean writesIntoExistingData()

Description copied from class: AbstractExampleSetProcessing

This method indicates whether the operator will perform a write operation on a cell in an existing column of the example set's ExampleTable. If yes, the original example will be completely copied in memory if the original port is used. Note: Subclasses must implement this method. The safe implementation would be to return true, however, for backwards compatibility, the default implementation returns false.

Overrides:

writesIntoExistingData in class AbstractExampleSetProcessing

getResourceConsumptionEstimator

public ResourceConsumptionEstimator getResourceConsumptionEstimator()

Description copied from class: Operator

Subclasses can override this method if they are able to estimate the consumed resources (CPU time and memory), based on their input. The default implementation returns null.

Specified by:

getResourceConsumptionEstimator in interface ResourceConsumer

Overrides:

getResourceConsumptionEstimator in class Operator