Package com.google.refine.model

Class ColumnModel

java.lang.Object

com.google.refine.model.ColumnModel

public class ColumnModel
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
protected Map<Integer,Column>	_cellIndexToColumn
protected List<String>	_columnNames
protected Map<String,Column>	_nameToColumn
protected List<ColumnGroup>	_rootColumnGroups
final List<ColumnGroup>	columnGroups
final List<Column>	columns

Constructor Summary

Constructors

Constructor	Description
ColumnModel()

Method Summary

Modifier and Type	Method	Description
void	addColumn(int index, Column column, boolean avoidNameCollision)
void	addColumnGroup(int startColumnIndex, int span, int keyColumnIndex)
int	allocateNewCellIndex()
void	clearPrecomputes()	Clear cached value computations for all columns
protected void	generateMaps()
Column	getColumnByCellIndex(int cellIndex)
Column	getColumnByName(String name)
int	getColumnIndexByName(String name)	Return the index of the column with the given name.
List<String>	getColumnNames()
Integer	getJsonKeyCellIndex()
int	getKeyColumnIndex()
String	getKeyColumnName()
int	getMaxCellIndex()
String	getUnduplicatedColumnName(String baseName)
protected void	internalInitialize()
void	load(LineNumberReader reader)
void	save(Writer writer, Properties options)
void	setKeyColumnIndex(int keyColumnIndex)
void	setMaxCellIndex(int maxCellIndex)
void	update()

Methods inherited from class java.lang.Object

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

Field Details

columns

public final List<Column> columns

columnGroups

public final List<ColumnGroup> columnGroups

_nameToColumn

protected transient Map<String,Column> _nameToColumn

_cellIndexToColumn

protected transient Map<Integer,Column> _cellIndexToColumn

_rootColumnGroups

protected transient List<ColumnGroup> _rootColumnGroups

_columnNames

protected transient List<String> _columnNames

Constructor Details

ColumnModel

public ColumnModel()

Method Details

setMaxCellIndex

public void setMaxCellIndex(int maxCellIndex)

getMaxCellIndex

public int getMaxCellIndex()

allocateNewCellIndex

public int allocateNewCellIndex()

Returns:

the next available cell index

setKeyColumnIndex

public void setKeyColumnIndex(int keyColumnIndex)

getKeyColumnIndex

public int getKeyColumnIndex()

addColumnGroup

public void addColumnGroup(int startColumnIndex,
 int span,
 int keyColumnIndex)

update

public void update()

addColumn

public void addColumn(int index,
 Column column,
 boolean avoidNameCollision)
               throws ModelException

Throws:

ModelException

getUnduplicatedColumnName

public String getUnduplicatedColumnName(String baseName)

getColumnByName

public Column getColumnByName(String name)

getColumnIndexByName

public int getColumnIndexByName(String name)

Return the index of the column with the given name.

Parameters:

name - column name to look up

Returns:

index of column with given name or -1 if not found.

getColumnByCellIndex

public Column getColumnByCellIndex(int cellIndex)

getColumnNames

public List<String> getColumnNames()

getJsonKeyCellIndex

public Integer getJsonKeyCellIndex()

getKeyColumnName

public String getKeyColumnName()

save

public void save(Writer writer,
 Properties options)
          throws IOException

Throws:

IOException

load

public void load(LineNumberReader reader)
          throws IOException

Throws:

IOException

internalInitialize

protected void internalInitialize()

generateMaps

protected void generateMaps()

clearPrecomputes

public void clearPrecomputes()

Clear cached value computations for all columns