org.knime.base.data.aggregation.date
Class DayRangeOperator

java.lang.Object
  org.knime.base.data.aggregation.AggregationOperator
      org.knime.base.data.aggregation.date.MillisRangeOperator
          org.knime.base.data.aggregation.date.DayRangeOperator

All Implemented Interfaces:

Comparable<AggregationMethod>, AggregationMethod

public class DayRangeOperator
extends MillisRangeOperator

Date operator that returns the range between the last and first date per group in days.

Author:

Tobias Koetter, University of Konstanz

Constructor Summary

DayRangeOperator(GlobalSettings globalSettings, OperatorColumnSettings opColSettings)
Constructor for class DayRangeOperator.

Method Summary

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.date.MillisRangeOperator

computeInternal, getMax, getMin, resetInternal

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

compareTo, compute, createColumnSpec, createOperator, getColumnLabel, getGlobalSettings, getId, getLabel, getMaxUniqueValues, getOperatorData, getResult, getSkipMessage, getSupportedType, getSupportedTypeLabel, getValueDelimiter, inclMissingCells, isCompatible, isCompatible, isSkipped, isUsesLimit, keepColumnSpec, reset, setSkipMessage, setSkipped, supportsMissingValueOption, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

DayRangeOperator

public DayRangeOperator(GlobalSettings globalSettings,
                        OperatorColumnSettings opColSettings)

Constructor for class DayRangeOperator.

Parameters:

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.

Overrides:

createInstance in class MillisRangeOperator

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 MillisRangeOperator

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 MillisRangeOperator

Returns:

the result DataCell

getDescription

public String getDescription()

Specified by:

getDescription in interface AggregationMethod

Overrides:

getDescription in class MillisRangeOperator

Returns:

a description that explains the used aggregation method to the user