Package com.macrofocus.molap.dataframe

Class EmptyDataFrame

java.lang.Object

com.macrofocus.molap.dataframe.AbstractDataFrame

com.macrofocus.molap.dataframe.EmptyDataFrame

All Implemented Interfaces:

DataFrame

public class EmptyDataFrame
extends AbstractDataFrame

Nested Class Summary

Nested classes/interfaces inherited from class com.macrofocus.molap.dataframe.AbstractDataFrame

AbstractDataFrame.ColumnSeries

Method Summary

Modifier and Type	Method	Description
java.lang.Class	getColumnClass(java.lang.Object o)	Returns the most specific superclass for all cell values in a column
UniqueIndex	getColumnIndex()	Gets the index used to access the columns.
static EmptyDataFrame	getInstance()
Series	getRow(java.lang.Object o)	Returns a series of all the values of a given row.
java.lang.Class	getRowClass(java.lang.Object o)	Returns the most specific superclass for all cell values in a row.
UniqueIndex	getRowIndex()	Gets the index used to access the rows.
java.lang.Object	getValueAt(java.lang.Object o, java.lang.Object o2)	Returns the value for the cell at the intersection of the column key and row key.
DataFrame	join(Series series, java.lang.Object[] objects)

Methods inherited from class com.macrofocus.molap.dataframe.AbstractDataFrame

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

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static EmptyDataFrame getInstance()

getRowClass

public java.lang.Class getRowClass(java.lang.Object o)

Description copied from interface: DataFrame

Returns the most specific superclass for all cell values in a row.

Parameters:

o - the key of the row

Returns:

the common ancestor class of the object values in the row.

getColumnClass

public java.lang.Class getColumnClass(java.lang.Object o)

Description copied from interface: DataFrame

Returns the most specific superclass for all cell values in a column

Parameters:

o - the key of the column

Returns:

the common ancestor class of the object values in the column.

getValueAt

public java.lang.Object getValueAt(java.lang.Object o,
                                   java.lang.Object o2)

Description copied from interface: DataFrame

Returns the value for the cell at the intersection of the column key and row key.

Parameters:

o - the row key whose value is to be queried

o2 - the column key whose value is to be queried

Returns:

the value Object at the specified cell

getRow

public Series getRow(java.lang.Object o)

Description copied from interface: DataFrame

Returns a series of all the values of a given row.

Parameters:

o - the row key

Returns:

a Series object

getRowIndex

public UniqueIndex getRowIndex()

Description copied from interface: DataFrame

Gets the index used to access the rows.

Returns:

the row index

getColumnIndex

public UniqueIndex getColumnIndex()

Description copied from interface: DataFrame

Gets the index used to access the columns.

Returns:

the column index

join

public DataFrame join(Series series,
                      java.lang.Object[] objects)