DrillDataFrame (Macrofocus MOLAP API for Swing SpecificationMOLAP is a Multidimensional, Open-Source, In-Memory, Object-Oriented, and Embeddable API for aggregating datathrough computationally efficient multidimensional cubes developed by Macrofocus. It supports the usualdrill-down, drill-up, slicing, dicing, and pivot operations, alongside a wide choice of built-inaggregation functions, with many additional distinctive features.A good and efficient starting point is the use of the {@link com.macrofocus.molap.dataframe.DataFrameFactory} class. It will get you started within minutes!)

All Superinterfaces:: DataFrame<Group,java.lang.String,java.lang.Object>

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

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`void`	`inPlaceDrillDown(C... columns)`	Group the rows by values of the specified columns.
`void`	`inPlaceDrillUp()`	Last group by level removed, i.e.
`void`	`setDrill(C... columns)`

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
  - inPlaceDrillDown
```
void inPlaceDrillDown(C... columns)
```
    Group the rows by values of the specified columns.
    
    Parameters:
    
    columns - the columns
  - inPlaceDrillUp
```
void inPlaceDrillUp()
```
    Last group by level removed, i.e. one level up.
  - setDrill
```
void setDrill(C... columns)
```