Package org.jfree.ui

Class SortableTableModel

java.lang.Object

javax.swing.table.AbstractTableModel

org.jfree.ui.SortableTableModel

All Implemented Interfaces:

Serializable, TableModel

Direct Known Subclasses:

SystemPropertiesTableModel

public abstract class SortableTableModel
extends AbstractTableModel

The base class for a sortable table model.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private boolean	ascending	Indicates ascending (true) or descending (false) order.
private int	sortingColumn	The column on which the data is sorted (-1 for no sorting).

Fields inherited from class javax.swing.table.AbstractTableModel

listenerList

Constructor Summary

Constructors

Constructor	Description
SortableTableModel()	Constructs a sortable table model.

Method Summary

Modifier and Type	Method	Description
int	getSortingColumn()	Returns the index of the sorting column, or -1 if the data is not sorted on any column.
boolean	isAscending()	Returns true if the data is sorted in ascending order, and false otherwise.
boolean	isSortable(int column)	Returns a flag indicating whether or not a column is sortable.
void	setAscending(boolean flag)	Sets the flag that determines whether the sort order is ascending or descending.
void	sortByColumn(int column, boolean ascending)	Sorts the table.

Methods inherited from class javax.swing.table.AbstractTableModel

addTableModelListener, findColumn, fireTableCellUpdated, fireTableChanged, fireTableDataChanged, fireTableRowsDeleted, fireTableRowsInserted, fireTableRowsUpdated, fireTableStructureChanged, getColumnClass, getColumnName, getListeners, getTableModelListeners, isCellEditable, removeTableModelListener, setValueAt

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.swing.table.TableModel

getColumnCount, getRowCount, getValueAt

Field Details

sortingColumn

private int sortingColumn

The column on which the data is sorted (-1 for no sorting).

ascending

private boolean ascending

Indicates ascending (true) or descending (false) order.

Constructor Details

SortableTableModel

public SortableTableModel()

Constructs a sortable table model.

Method Details

getSortingColumn

public int getSortingColumn()

Returns the index of the sorting column, or -1 if the data is not sorted on any column.

Returns:

the column used for sorting.

isAscending

public boolean isAscending()

Returns true if the data is sorted in ascending order, and false otherwise.

Returns:

true if the data is sorted in ascending order, and false otherwise.

setAscending

public void setAscending(boolean flag)

Sets the flag that determines whether the sort order is ascending or descending.

Parameters:

flag - the flag.

sortByColumn

public void sortByColumn(int column,
 boolean ascending)

Sorts the table.

Parameters:

column - the column to sort on (zero-based index).

ascending - a flag to indicate ascending order or descending order.

isSortable

public boolean isSortable(int column)

Returns a flag indicating whether or not a column is sortable.

Parameters:

column - the column (zero-based index).

Returns:

boolean.