org.knime.base.data.aggregation.bitvector

Class BitVectorIntersectionOperator

java.lang.Object

org.knime.base.data.aggregation.AggregationOperator

org.knime.base.data.aggregation.bitvector.BitVectorIntersectionOperator

All Implemented Interfaces:

Comparable<AggregationMethod>, AggregationMethod, AggregationFunction

public class BitVectorIntersectionOperator
extends AggregationOperator

Returns the intersection of the bit vectors for all members of a 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
BitVectorIntersectionOperator(GlobalSettings globalSettings, OperatorColumnSettings opColSettings) Constructor for class TrueCountOperator.
BitVectorIntersectionOperator(OperatorData operatorData, GlobalSettings globalSettings, OperatorColumnSettings opColSettings) Constructor for class TrueCountOperator.

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

BitVectorIntersectionOperator

public BitVectorIntersectionOperator(GlobalSettings globalSettings,
                                     OperatorColumnSettings opColSettings)

Constructor for class TrueCountOperator.

Parameters:

globalSettings - the global settings

opColSettings - the operator column specific settings

BitVectorIntersectionOperator

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

Constructor for class TrueCountOperator.

Parameters:

operatorData - the operator data

globalSettings - the global settings

opColSettings - the operator column specific settings

Method Detail

getDataType

protected DataType getDataType(DataType origType)

Specified by:

getDataType in class AggregationOperator

Parameters:

origType - the DataType of the original column to aggregate

Returns:

the DataType of the aggregation result

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!

Specified by:

createInstance in class AggregationOperator

Parameters:

globalSettings - the global settings

opColSettings - the operator column specific settings

Returns:

a new instance of this operator

computeInternal

protected boolean computeInternal(DataCell cell)

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)

getResultInternal

protected DataCell getResultInternal()

Specified by:

getResultInternal in class AggregationOperator

Returns:

the result DataCell

resetInternal

protected void resetInternal()

Should reset the operator to the start values.

Specified by:

resetInternal in class AggregationOperator

getDescription

public String getDescription()

Returns:

the description for this function