Package adams.ml.data

Class InstancesHeaderRow

java.lang.Object

adams.data.spreadsheet.AbstractRow

adams.data.spreadsheet.HeaderRow

adams.ml.data.InstancesHeaderRow

All Implemented Interfaces:

Mergeable<Row>, Row, Serializable

public class InstancesHeaderRow
extends HeaderRow

Header row for an Instances object.

Version:

$Revision$

Author:

FracPete (fracpete at waikato dot ac dot nz)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected weka.core.Instances	m_Data	the underlying data.

Fields inherited from class adams.data.spreadsheet.HeaderRow

m_CellKeys

Fields inherited from class adams.data.spreadsheet.AbstractRow

m_Cells, m_Owner

Constructor Summary

Constructors

Constructor	Description
InstancesHeaderRow(InstancesView owner)	Initializes the header row.

Method Summary

Modifier and Type	Method	Description
Cell	addCell(int columnIndex)	Adds a cell with the key of the cell in the header at the specified location.
Cell	addCell(String cellKey)	Adds a cell with the given key to the list and returns the created object.
void	assign(Row row)	Obtains copies of the cells from the other row, but not the owner.
Collection<String>	cellKeys()	Returns a collection of all stored cell keys.
protected int	cellKeyToIndex(String cellKey)	Turns the cellKey into a column index.
Collection<Cell>	cells()	Returns all cells.
void	clear()	Removes all cells.
Cell	getCell(int columnIndex)	Returns the cell with the given index, null if not found.
Cell	getCell(String cellKey)	Returns the cell with the given key, null if not found.
int	getCellCount()	Returns the number of cells stored in the row.
String	getCellKey(int columnIndex)	Returns the cell key with the given column index.
HeaderRow	getClone(SpreadSheet owner)	Returns a clone of itself.
String	getContent(int columnIndex)	Returns the cell content with the given index.
weka.core.Instances	getData()	Returns the underlying Instance.
boolean	hasCell(int columnIndex)	Returns whether the row alread contains the cell at the specified location.
boolean	hasCell(String cellKey)	Returns whether the row alread contains the cell with the given key.
int	indexOf(Cell cell)	Returns the column this particular cell is in (must belong to this row!).
void	mergeWith(Row other)	Merges its own data with the one provided by the specified row.
Cell	newCell(Row owner)	Creates a new instance of a cell.
Cell	removeCell(int columnIndex)	Removes the cell at the specified index.
Cell	removeCell(String cellKey)	Removes the cell at the specified index.
boolean	removeMissing()	Removes all cells marked "missing".
void	setOwner(SpreadSheet owner)	Sets the spreadsheet this row belongs to.
String	toString()	Simply returns the internal hashtable of cells as string.

Methods inherited from class adams.data.spreadsheet.HeaderRow

indexOf, indexOfContent, insertCell, uniqueKey

Methods inherited from class adams.data.spreadsheet.AbstractRow

getOwner, isEmpty, isEmpty

Methods inherited from class java.lang.Object

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

Field Detail

m_Data

protected weka.core.Instances m_Data

the underlying data.

Constructor Detail

InstancesHeaderRow

public InstancesHeaderRow(InstancesView owner)

Initializes the header row.

Parameters:

owner - the owner

Method Detail

getData

public weka.core.Instances getData()

Returns the underlying Instance.

Returns:

the underlying data

cellKeyToIndex

protected int cellKeyToIndex(String cellKey)

Turns the cellKey into a column index.

Parameters:

cellKey - the cellKey to convert

Returns:

the column index, -1 if failed to convert

setOwner

public void setOwner(SpreadSheet owner)

Sets the spreadsheet this row belongs to.

Specified by:

setOwner in interface Row

Overrides:

setOwner in class AbstractRow

Parameters:

owner - the owner

getClone

public HeaderRow getClone(SpreadSheet owner)

Returns a clone of itself.

Specified by:

getClone in interface Row

Overrides:

getClone in class HeaderRow

Parameters:

owner - the new owner

Returns:

the clone

clear

public void clear()

Removes all cells.
Does nothing.

Specified by:

clear in interface Row

Overrides:

clear in class HeaderRow

assign

public void assign(Row row)

Obtains copies of the cells from the other row, but not the owner.
Does nothing.

Specified by:

assign in interface Row

Overrides:

assign in class HeaderRow

Parameters:

row - the row to get the cells from

newCell

public Cell newCell(Row owner)

Creates a new instance of a cell.

Specified by:

newCell in interface Row

Overrides:

newCell in class HeaderRow

Parameters:

owner - the owner

Returns:

always null

hasCell

public boolean hasCell(int columnIndex)

Returns whether the row alread contains the cell at the specified location.

Specified by:

hasCell in interface Row

Overrides:

hasCell in class HeaderRow

Parameters:

columnIndex - the column index

Returns:

true if the cell already exists

hasCell

public boolean hasCell(String cellKey)

Returns whether the row alread contains the cell with the given key.

Specified by:

hasCell in interface Row

Overrides:

hasCell in class AbstractRow

Parameters:

cellKey - the key to look for

Returns:

true if the cell already exists

addCell

public Cell addCell(int columnIndex)

Adds a cell with the key of the cell in the header at the specified location. If the cell already exists, it returns that instead of creating one.

Specified by:

addCell in interface Row

Overrides:

addCell in class HeaderRow

Parameters:

columnIndex - the index of the column to create

Returns:

the created cell or the already existing cell

addCell

public Cell addCell(String cellKey)

Adds a cell with the given key to the list and returns the created object. If the cell already exists, then this cell is returned instead and no new object created.

Specified by:

addCell in interface Row

Overrides:

addCell in class HeaderRow

Parameters:

cellKey - the key for the cell to create

Returns:

the created cell or the already existing cell

removeCell

public Cell removeCell(int columnIndex)

Removes the cell at the specified index.

Specified by:

removeCell in interface Row

Overrides:

removeCell in class AbstractRow

Parameters:

columnIndex - the index of the column

Returns:

the removed cell, null if not removed

removeCell

public Cell removeCell(String cellKey)

Removes the cell at the specified index.

Specified by:

removeCell in interface Row

Overrides:

removeCell in class HeaderRow

Parameters:

cellKey - the key of the cell to remove

Returns:

the removed cell, null if non removed

getCell

public Cell getCell(String cellKey)

Returns the cell with the given key, null if not found.

Specified by:

getCell in interface Row

Overrides:

getCell in class AbstractRow

Parameters:

cellKey - the cell to look for

Returns:

the cell or null if not found

getCell

public Cell getCell(int columnIndex)

Returns the cell with the given index, null if not found.

Specified by:

getCell in interface Row

Overrides:

getCell in class AbstractRow

Parameters:

columnIndex - the index of the column

Returns:

the cell or null if not found

getContent

public String getContent(int columnIndex)

Returns the cell content with the given index.

Specified by:

getContent in interface Row

Overrides:

getContent in class AbstractRow

Parameters:

columnIndex - the index of the column

Returns:

the content or null if not found

getCellKey

public String getCellKey(int columnIndex)

Returns the cell key with the given column index.

Specified by:

getCellKey in interface Row

Overrides:

getCellKey in class HeaderRow

Parameters:

columnIndex - the index of the column

Returns:

the cell key, null if invalid index

cellKeys

public Collection<String> cellKeys()

Returns a collection of all stored cell keys.

Specified by:

cellKeys in interface Row

Overrides:

cellKeys in class HeaderRow

Returns:

all cell keys

cells

public Collection<Cell> cells()

Returns all cells.

Specified by:

cells in interface Row

Overrides:

cells in class HeaderRow

Returns:

the cells

getCellCount

public int getCellCount()

Returns the number of cells stored in the row.

Specified by:

getCellCount in interface Row

Overrides:

getCellCount in class AbstractRow

Returns:

the number of cells

removeMissing

public boolean removeMissing()

Removes all cells marked "missing".

Specified by:

removeMissing in interface Row

Overrides:

removeMissing in class AbstractRow

Returns:

true if any cell was removed

indexOf

public int indexOf(Cell cell)

Returns the column this particular cell is in (must belong to this row!).

Specified by:

indexOf in interface Row

Overrides:

indexOf in class HeaderRow

Parameters:

cell - the cell to get the column index of

Returns:

the column index, -1 if not found

mergeWith

public void mergeWith(Row other)

Merges its own data with the one provided by the specified row.

Not implemented!

Specified by:

mergeWith in interface Mergeable<Row>

Specified by:

mergeWith in interface Row

Overrides:

mergeWith in class HeaderRow

Parameters:

other - the row to merge with

toString

public String toString()

Simply returns the internal hashtable of cells as string.

Specified by:

toString in interface Row

Overrides:

toString in class AbstractRow

Returns:

the values of the row