Package com.macrofocus.molap.aggregates

Interface AggregateDataFrame<C>

Type Parameters:

C - the original type of columns

All Superinterfaces:

DataFrame<Group,java.lang.String,java.lang.Object>

All Known Implementing Classes:

QueryDataFrame

public interface AggregateDataFrame<C>
extends DataFrame<Group,java.lang.String,java.lang.Object>

A data frame specialized for aggregating values. For obtaining an instance of such an interface, see DataFrame.aggregate(com.macrofocus.molap.aggregates.aggregation.Aggregation...).

Method Summary

Modifier and Type	Method	Description
AggregateDataFrame<C>	collapse()
AggregateDataFrame<C>	dice(java.util.Set<java.lang.Object> valuesSets)
AggregateDataFrame<C>	drillDown(C... columns)	Returns a new data frame that group the rows by values of the specified columns.
AggregateDataFrame<C>	drillUp()	Returns a new data frame with the last group by level removed, i.e.
Cuboid	getCuboid()	Returns the cuboid used to aggregate the values.
AggregateDataFrame<C>	on(Cuboid... cuboids)	Combine the values from multiple cuboids into that data frame.
AggregateDataFrame<C>	order(Aggregation... aggregations)	Returns a new data frame that change the order of the groups according to the specified aggregation methods.
AggregateDataFrame<C>	pivot(Aggregation aggregation)	Returns a new data frame that pivot the specified aggregation method into column values.
AggregateDataFrame<C>	slice(java.lang.Object value)

Methods inherited from interface com.macrofocus.molap.dataframe.DataFrame

addDataFrameListener, addWeakDataFrameListener, aggregate, aggregate, append, appendAndReindex, benchmark, columns, filter, getCentroid, getColumn, getColumnAddress, getColumnClass, getColumnCount, getColumnIndex, getColumnKey, getColumnName, getConstant, getCount, getCountDistinct, getCountDistinctWithNull, getDataFrameAggregation, getDistributiveStatistics, getFirst, getFirstQuartile, getMax, getMean, getMedian, getMin, getRandom, getRow, getRowAddress, getRowClass, getRowCount, getRowIndex, getRowKey, getStatistics, getStdDev, getSum, getThirdQuartile, getUnivariateStatistics, getValueAt, getVariance, getVarianceByPopulation, getWeightedMean, getWeightedSum, join, orderRows, print, print, printSchema, reindexColumns, reindexRows, reindexRows, reindexRows, reindexRows, reindexRows, remapColumns, removeColumns, removeDataFrameListener, removeDataFrameListeners, removeDuplicates, rows

Method Detail

getCuboid

Cuboid getCuboid()

Returns the cuboid used to aggregate the values.

Returns:

the cuboid

drillDown

AggregateDataFrame<C> drillDown(C... columns)

Returns a new data frame that group the rows by values of the specified columns.

Parameters:

columns - the columns

Returns:

a new data frame aggregating the values according to the new criteria

drillUp

AggregateDataFrame<C> drillUp()

Returns a new data frame with the last group by level removed, i.e. one level up.

Returns:

a new data frame aggregating the values according to the new criteria

slice

AggregateDataFrame<C> slice(java.lang.Object value)

dice

AggregateDataFrame<C> dice(java.util.Set<java.lang.Object> valuesSets)

collapse

AggregateDataFrame<C> collapse()

order

AggregateDataFrame<C> order(Aggregation... aggregations)

Returns a new data frame that change the order of the groups according to the specified aggregation methods.

Parameters:

aggregations - the aggregation methods

Returns:

a new data frame

pivot

AggregateDataFrame<C> pivot(Aggregation aggregation)

Returns a new data frame that pivot the specified aggregation method into column values.

Parameters:

aggregation - the aggregation to pivot

Returns:

a new data frame

on

AggregateDataFrame<C> on(Cuboid... cuboids)

Combine the values from multiple cuboids into that data frame.

Parameters:

cuboids - the cuboids

Returns:

a new data frame