org.knime.base.data.aggregation.general

Class PercentOperator

java.lang.Object

org.knime.base.data.aggregation.AggregationOperator

org.knime.base.data.aggregation.general.CountOperator

org.knime.base.data.aggregation.general.PercentOperator

All Implemented Interfaces:

Comparable<AggregationMethod>, AggregationMethod, AggregationFunction

public class PercentOperator
extends CountOperator

Returns the percentage per group.

Author:

Tobias Koetter, University of Konstanz

Field Summary

Fields inherited from interface org.knime.base.data.aggregation.AggregationMethod

ASC_NAME_COMPARATOR

Constructor Summary

Constructors

Constructor and Description
PercentOperator(GlobalSettings globalSettings, OperatorColumnSettings opColSettings) Constructor for class PercentageOperator.
PercentOperator(OperatorData operatorData, GlobalSettings globalSettings, OperatorColumnSettings opColSettings) Constructor for class PercentageOperator.

Method Summary

Modifier and Type	Method and Description
AggregationOperator	createInstance(GlobalSettings globalSettings, OperatorColumnSettings opColSettings) Creates a new instance of this operator.
protected DataType	getDataType(DataType origType)
String	getDescription()
protected DataCell	getResultInternal()

Methods inherited from class org.knime.base.data.aggregation.general.CountOperator

computeInternal, resetInternal

Methods inherited from class org.knime.base.data.aggregation.AggregationOperator

compareTo, compute, compute, computeInternal, configure, createColumnSpec, createOperator, equals, getAdditionalColumnNames, getColumnLabel, getDetailedDescription, getGlobalSettings, getId, getLabel, getMaxUniqueValues, getOperatorColumnSettings, getOperatorData, getResult, getSettingsPanel, getSkipMessage, getSupportedType, getSupportedTypeLabel, getValueDelimiter, hashCode, hasOptionalSettings, inclMissingCells, isCompatible, isCompatible, isSkipped, isUsesLimit, keepColumnSpec, loadSettingsFrom, loadValidatedSettings, reset, saveSettingsTo, setInclMissingFlag, setSkipMessage, setSkipped, supportsMissingValueOption, toString, validate, validateSettings

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PercentOperator

public PercentOperator(GlobalSettings globalSettings,
                       OperatorColumnSettings opColSettings)

Constructor for class PercentageOperator.

Parameters:

globalSettings - the global settings

opColSettings - the operator column specific settings

PercentOperator

public PercentOperator(OperatorData operatorData,
                       GlobalSettings globalSettings,
                       OperatorColumnSettings opColSettings)

Constructor for class PercentageOperator.

Parameters:

operatorData - the operator data

globalSettings - the global settings

opColSettings - the operator column specific settings

Method Detail

createInstance

public AggregationOperator createInstance(GlobalSettings globalSettings,
                                          OperatorColumnSettings opColSettings)

Creates a new instance of this operator. A new instance is created for each column. Remember to copy all operator specific settings when creating a new instance!

Overrides:

createInstance in class CountOperator

Parameters:

globalSettings - the global settings

opColSettings - the operator column specific settings

Returns:

a new instance of this operator

getDataType

protected DataType getDataType(DataType origType)

Overrides:

getDataType in class CountOperator

Parameters:

origType - the DataType of the original column to aggregate

Returns:

the DataType of the aggregation result

getResultInternal

protected DataCell getResultInternal()

Overrides:

getResultInternal in class CountOperator

Returns:

the result DataCell

getDescription

public String getDescription()

Specified by:

getDescription in interface AggregationFunction

Overrides:

getDescription in class CountOperator

Returns:

the description for this function