Package com.macrofocus.molap.dataframe

Class SelectionDataFrame<R,C,V>

java.lang.Object

com.macrofocus.molap.dataframe.AbstractDataFrame<R,C,V>

com.macrofocus.molap.dataframe.SelectionDataFrame<R,C,V>

Type Parameters:

R - the type of row keys

C - the type of column keys

V - the type of values

All Implemented Interfaces:

DataFrame<R,C,V>

public class SelectionDataFrame<R,C,V>
extends AbstractDataFrame<R,C,V>

A row filterable data frame. Only the selected rows will be made visible by this data frame.

Nested Class Summary

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

AbstractDataFrame.ColumnSeries

Constructor Summary

Constructors

Constructor	Description
SelectionDataFrame(AbstractDataFrame<R,C,V> dataFrame, com.macrofocus.selection.MutableSelection<R> filter)

Method Summary

Modifier and Type	Method	Description
java.lang.Iterable<C>	columns()	Returns the column keys.
int	getColumnAddress(C c)	Returns the absolute index for the specified column key.
java.lang.Class	getColumnClass(C c)	Returns the most specific superclass for all cell values in a column
int	getColumnCount()	Returns the number of columns contained by this data frame.
UniqueIndex<C>	getColumnIndex()	Gets the index used to access the columns.
C	getColumnKey(int index)	Returns the column key at the specified absolute index.
Series<C,?>	getRow(R r)	Returns a series of all the values of a given row.
int	getRowAddress(R r)	Returns the absolute index for the specified row key.
java.lang.Class	getRowClass(R r)	Returns the most specific superclass for all cell values in a row.
int	getRowCount()	Returns the number of rows contained by the this data frame.
UniqueIndex<R>	getRowIndex()	Gets the index used to access the rows.
R	getRowKey(int index)	Returns the row key at the specified absolute index.
V	getValueAt(R r, C c)	Returns the value for the cell at the intersection of the column key and row key.
DataFrame	join(Series series, C[] cs)
java.lang.Iterable<R>	rows()	Returns the row keys.

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

addDataFrameListener, addWeakDataFrameListener, aggregate, aggregate, append, appendAndReindex, benchmark, filter, getCentroid, getColumn, getColumnName, getConstant, getCount, getCountDistinct, getCountDistinctWithNull, getCube, getDataFrameAggregation, getDistributiveStatistics, getFirst, getFirstQuartile, getMax, getMean, getMedian, getMin, getRandom, 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

Methods inherited from class java.lang.Object

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

Constructor Detail

SelectionDataFrame

public SelectionDataFrame(AbstractDataFrame<R,C,V> dataFrame,
                          com.macrofocus.selection.MutableSelection<R> filter)

Method Detail

getRowIndex

public UniqueIndex<R> getRowIndex()

Description copied from interface: DataFrame

Gets the index used to access the rows.

Returns:

the row index

getColumnIndex

public UniqueIndex<C> getColumnIndex()

Description copied from interface: DataFrame

Gets the index used to access the columns.

Returns:

the column index

getRowClass

public java.lang.Class getRowClass(R r)

Description copied from interface: DataFrame

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

Parameters:

r - the key of the row

Returns:

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

getColumnClass

public java.lang.Class getColumnClass(C c)

Description copied from interface: DataFrame

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

Parameters:

c - the key of the column

Returns:

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

getValueAt

public V getValueAt(R r,
                    C c)

Description copied from interface: DataFrame

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

Parameters:

r - the row key whose value is to be queried

c - the column key whose value is to be queried

Returns:

the value Object at the specified cell

getRow

public Series<C,?> getRow(R r)

Description copied from interface: DataFrame

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

Parameters:

r - the row key

Returns:

a Series object

rows

public java.lang.Iterable<R> rows()

Description copied from interface: DataFrame

Returns the row keys.

Specified by:

rows in interface DataFrame<R,C,V>

Overrides:

rows in class AbstractDataFrame<R,C,V>

Returns:

the row keys

columns

public java.lang.Iterable<C> columns()

Description copied from interface: DataFrame

Returns the column keys.

Specified by:

columns in interface DataFrame<R,C,V>

Overrides:

columns in class AbstractDataFrame<R,C,V>

Returns:

the column keys

getRowKey

public R getRowKey(int index)

Description copied from interface: DataFrame

Returns the row key at the specified absolute index. This is the inverse of DataFrame.getRowAddress(Object).

Specified by:

getRowKey in interface DataFrame<R,C,V>

Overrides:

getRowKey in class AbstractDataFrame<R,C,V>

Parameters:

index - the index

Returns:

the row key

getColumnKey

public C getColumnKey(int index)

Description copied from interface: DataFrame

Returns the column key at the specified absolute index. This is the inverse of DataFrame.getColumnAddress(Object).

Specified by:

getColumnKey in interface DataFrame<R,C,V>

Overrides:

getColumnKey in class AbstractDataFrame<R,C,V>

Parameters:

index - the index

Returns:

the column key

getRowAddress

public int getRowAddress(R r)

Description copied from interface: DataFrame

Returns the absolute index for the specified row key. This is the inverse of DataFrame.getRowKey(int).

Specified by:

getRowAddress in interface DataFrame<R,C,V>

Overrides:

getRowAddress in class AbstractDataFrame<R,C,V>

Parameters:

r - the row key

Returns:

the absolute index of the specified key.

getColumnAddress

public int getColumnAddress(C c)

Description copied from interface: DataFrame

Returns the absolute index for the specified column key. This is the inverse of DataFrame.getColumnKey(int).

Specified by:

getColumnAddress in interface DataFrame<R,C,V>

Overrides:

getColumnAddress in class AbstractDataFrame<R,C,V>

Parameters:

c - the column key

Returns:

the absolute index of the specified key.

getRowCount

public int getRowCount()

Description copied from interface: DataFrame

Returns the number of rows contained by the this data frame.

Specified by:

getRowCount in interface DataFrame<R,C,V>

Overrides:

getRowCount in class AbstractDataFrame<R,C,V>

Returns:

the number of rows.

getColumnCount

public int getColumnCount()

Description copied from interface: DataFrame

Returns the number of columns contained by this data frame.

Specified by:

getColumnCount in interface DataFrame<R,C,V>

Overrides:

getColumnCount in class AbstractDataFrame<R,C,V>

Returns:

the number of columns.

join

public DataFrame join(Series series,
                      C[] cs)