org.knime.base.data.aggregation.numerical

Class StoreResizableDoubleArrayOperator

java.lang.Object

org.knime.base.data.aggregation.AggregationOperator

org.knime.base.data.aggregation.numerical.StoreResizableDoubleArrayOperator

All Implemented Interfaces:

Comparable<AggregationMethod>, AggregationMethod, AggregationFunction

Direct Known Subclasses:

MeanAbsoluteDeviationOperator, MedianAbsoluteDeviationOperator, QuantileOperator

public abstract class StoreResizableDoubleArrayOperator
extends AggregationOperator

Utility class that uses a ResizableDoubleArray to store all numeric values of a group.

Since:

2.12

Author:

Lara Gorini

Field Summary

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

ASC_NAME_COMPARATOR

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	StoreResizableDoubleArrayOperator(OperatorData operatorData, GlobalSettings globalSettings, OperatorColumnSettings opColSettings) constructor of class StoreResizableDoubleArrayOperator.

Method Summary

Modifier and Type	Method and Description
protected boolean	computeInternal(DataCell cell) If the AggregationOperator implementation also requires the DataRow during computation override the AggregationOperator.computeInternal(DataRow, DataCell) method.
protected org.apache.commons.math.util.ResizableDoubleArray	getCells()
protected void	resetInternal() Should reset the operator to the start values.

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

compareTo, compute, compute, computeInternal, configure, createColumnSpec, createInstance, createOperator, equals, getAdditionalColumnNames, getColumnLabel, getDataType, getDetailedDescription, getGlobalSettings, getId, getLabel, getMaxUniqueValues, getOperatorColumnSettings, getOperatorData, getResult, getResultInternal, 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

Methods inherited from interface org.knime.core.node.port.database.aggregation.AggregationFunction

getDescription

Constructor Detail

StoreResizableDoubleArrayOperator

protected StoreResizableDoubleArrayOperator(OperatorData operatorData,
                                            GlobalSettings globalSettings,
                                            OperatorColumnSettings opColSettings)

constructor of class StoreResizableDoubleArrayOperator.

Parameters:

operatorData -

globalSettings -

opColSettings -

Method Detail

computeInternal

protected boolean computeInternal(DataCell cell)

Description copied from class: AggregationOperator

If the AggregationOperator implementation also requires the DataRow during computation override the AggregationOperator.computeInternal(DataRow, DataCell) method. Even if the AggregationOperator.computeInternal(DataRow, DataCell) method is implemented this method still might be called by previous implementations prior version 2.6 and should compute a reasonable result.

Specified by:

computeInternal in class AggregationOperator

Parameters:

cell - the DataCell to consider during computing the cell can't be null but can be a missing cell DataCell.isMissing() if the AggregationOperator.inclMissingCells() option is set to true.

Returns:

true if this column should be skipped in further calculations

See Also:

AggregationOperator.computeInternal(DataRow, DataCell)

resetInternal

protected void resetInternal()

Should reset the operator to the start values.

Specified by:

resetInternal in class AggregationOperator

getCells

protected org.apache.commons.math.util.ResizableDoubleArray getCells()

Returns:

ResizableDoubleArray m_cells