net.shredzone.jshred.swing

Class EmptyTableModel

java.lang.Object

net.shredzone.jshred.swing.EmptyTableModel

All Implemented Interfaces:

TableModel, SortableTableModel

public final class EmptyTableModel
extends Object
implements SortableTableModel

This is just a mere empty TableModel which will never have any entries. It also implements the SortableTableModel, so it can be used for JSortedTable as well.

Since:

R14

Author:

Richard "Shred" Körber

Constructor Summary

Constructors

Constructor and Description
EmptyTableModel()

Method Summary

Modifier and Type	Method and Description
void	addTableModelListener(TableModelListener l) Adds a listener.
Class<?>	getColumnClass(int columnIndex) Gets the column class.
int	getColumnCount() Gets the column count.
String	getColumnName(int columnIndex) Gets the column name.
int	getRowCount() Gets the row count.
int	getSortedColumn() Gets the colum that is sorted.
Object	getValueAt(int rowIndex, int columnIndex) Gets the value at a certain position.
boolean	isCellEditable(int rowIndex, int columnIndex) Checks if a cell is editable.
boolean	isDescending() Checks if the sort order is descending.
void	removeTableModelListener(TableModelListener l) Remove sa listener.
void	setValueAt(Object aValue, int rowIndex, int columnIndex) Sets a value of a cell.
void	sortByColumn(int columnIndex, boolean desc) Sorts by a column.

Methods inherited from class java.lang.Object

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

Constructor Detail

EmptyTableModel

public EmptyTableModel()

Method Detail

addTableModelListener

public void addTableModelListener(TableModelListener l)

Adds a listener. Since this list will always be empty, the listeners are just ignored.

Specified by:

addTableModelListener in interface TableModel

getColumnClass

public Class<?> getColumnClass(int columnIndex)

Gets the column class. This is always Object, just to return anything.

Specified by:

getColumnClass in interface TableModel

getColumnCount

public int getColumnCount()

Gets the column count. The table is empty, so there are 0 columns.

Specified by:

getColumnCount in interface TableModel

getColumnName

public String getColumnName(int columnIndex)

Gets the column name. This is an empty string, but not null.

Specified by:

getColumnName in interface TableModel

getRowCount

public int getRowCount()

Gets the row count. This is always 0 since the table is empty.

Specified by:

getRowCount in interface TableModel

getValueAt

public Object getValueAt(int rowIndex,
                         int columnIndex)

Gets the value at a certain position. This is always null.

Specified by:

getValueAt in interface TableModel

isCellEditable

public boolean isCellEditable(int rowIndex,
                              int columnIndex)

Checks if a cell is editable. For this model, no cell is editable.

Specified by:

isCellEditable in interface TableModel

removeTableModelListener

public void removeTableModelListener(TableModelListener l)

Remove sa listener. Since this list will always be empty, the listeners are just ignored.

Specified by:

removeTableModelListener in interface TableModel

setValueAt

public void setValueAt(Object aValue,
                       int rowIndex,
                       int columnIndex)

Sets a value of a cell. Changing an empty table is always ignored.

Specified by:

setValueAt in interface TableModel

getSortedColumn

public int getSortedColumn()

Gets the colum that is sorted. Always returns 0.

Specified by:

getSortedColumn in interface SortableTableModel

Returns:

Currently sorted column.

isDescending

public boolean isDescending()

Checks if the sort order is descending. Always returns false.

Specified by:

isDescending in interface SortableTableModel

Returns:

true: descending, false: ascending

sortByColumn

public void sortByColumn(int columnIndex,
                         boolean desc)

Sorts by a column. This is ignored for empty tables.

Specified by:

sortByColumn in interface SortableTableModel

Parameters:

columnIndex - Column index

desc - Descending?