prefuse.data.column
Class ObjectColumn

java.lang.Object
  prefuse.data.column.AbstractColumn
      prefuse.data.column.ObjectColumn

All Implemented Interfaces:

Column

public class ObjectColumn
extends AbstractColumn

Column implementation for storing arbitrary Object values.

Author:

jeffrey heer

Field Summary

Fields inherited from class prefuse.data.column.AbstractColumn

m_columnType, m_defaultValue, m_listeners, m_parser, m_readOnly

Constructor Summary

ObjectColumn()
Create a new empty ObjectColumn.

ObjectColumn(java.lang.Class type)
Create a new ObjectColumn.

ObjectColumn(java.lang.Class type, int nrows)
Create a new ObjectColumn.

ObjectColumn(java.lang.Class type, int nrows, int capacity, java.lang.Object defaultValue)
Create a new ObjectColumn.

ObjectColumn(int nrows)
Create a new ObjectColumn.

Method Summary

java.lang.Object	get(int row) Get the data value at the specified row
int	getRowCount() Returns the number of rows in this data column
void	revertToDefault(int row) Reverts the specified row back to the column's default value.
void	set(java.lang.Object val, int row) Set the data value at the specified row
void	setMaximumRow(int nrows) Sets the number of rows in this data column

Methods inherited from class prefuse.data.column.AbstractColumn

addColumnListener, canGet, canGetBoolean, canGetDate, canGetDouble, canGetFloat, canGetInt, canGetLong, canGetString, canSet, canSetBoolean, canSetDate, canSetDouble, canSetFloat, canSetInt, canSetLong, canSetString, fireColumnEvent, fireColumnEvent, fireColumnEvent, fireColumnEvent, fireColumnEvent, fireColumnEvent, fireColumnEvent, getBoolean, getColumnType, getDate, getDefaultValue, getDouble, getFloat, getInt, getLong, getParser, getString, isCellEditable, isReadOnly, removeColumnListener, setBoolean, setDate, setDefaultValue, setDouble, setFloat, setInt, setLong, setParser, setReadOnly, setString

Methods inherited from class java.lang.Object

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

Constructor Detail

ObjectColumn

public ObjectColumn()

Create a new empty ObjectColumn. The type is assumed to be Object.

ObjectColumn

public ObjectColumn(java.lang.Class type)

Create a new ObjectColumn.

Parameters:

type - the data type of Objects in this column

ObjectColumn

public ObjectColumn(int nrows)

Create a new ObjectColumn. The type is assumed to be Object.

Parameters:

nrows - the initial size of the column

ObjectColumn

public ObjectColumn(java.lang.Class type,
                    int nrows)

Create a new ObjectColumn.

Parameters:

type - the data type of Objects in this column

nrows - the initial size of the column

ObjectColumn

public ObjectColumn(java.lang.Class type,
                    int nrows,
                    int capacity,
                    java.lang.Object defaultValue)

Create a new ObjectColumn.

Parameters:

type - the data type of Objects in this column

nrows - the initial size of the column

capacity - the initial capacity of the column

defaultValue - the default value for the column. If this value is cloneable, it will be cloned when assigned as defaultValue, otherwise the input reference will be used for every default value.

Method Detail

getRowCount

public int getRowCount()

Description copied from interface: Column

Returns the number of rows in this data column

Returns:

the number of rows

See Also:

Column.getRowCount()

setMaximumRow

public void setMaximumRow(int nrows)

Description copied from interface: Column

Sets the number of rows in this data column

Parameters:

nrows - the number of rows

See Also:

Column.setMaximumRow(int)

revertToDefault

public void revertToDefault(int row)

Description copied from class: AbstractColumn

Reverts the specified row back to the column's default value.

Specified by:

revertToDefault in interface Column

Overrides:

revertToDefault in class AbstractColumn

get

public java.lang.Object get(int row)

Get the data value at the specified row

Parameters:

row - the row from which to retrieve the value

Returns:

the data value

set

public void set(java.lang.Object val,
                int row)

Set the data value at the specified row

Parameters:

val - the value to set

row - the row at which to set the value