Class SystemPropertiesTableModel

java.lang.Object

javax.swing.table.AbstractTableModel

org.jfree.ui.SortableTableModel

org.jfree.ui.about.SystemPropertiesTableModel

All Implemented Interfaces:

Serializable, TableModel

public class SystemPropertiesTableModel
extends SortableTableModel

A sortable table model containing the system properties.

Author:

David Gilbert

See Also:

• Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
protected static class	SystemPropertiesTableModel.SystemProperty	Useful class for holding the name and value of a system property.
protected static class	SystemPropertiesTableModel.SystemPropertyComparator	A class for comparing SystemProperty objects.

Field Summary

Fields inherited from class AbstractTableModel

listenerList

Constructor Summary

Constructors

Constructor	Description
SystemPropertiesTableModel()	Creates a new table model using the properties of the current Java Virtual Machine.

Method Summary

Modifier and Type	Method	Description
int	getColumnCount()	Returns the number of columns in the table model.
String	getColumnName(int column)	Returns the name of the specified column.
int	getRowCount()	Returns the number of rows in the table model (that is, the number of system properties).
Object	getValueAt(int row, int column)	Returns the value at the specified row and column.
boolean	isSortable(int column)	Returns true for the first column, and false otherwise - sorting is only allowed on the first column.
void	sortByColumn(int column, boolean ascending)	Sorts on the specified column.

Methods inherited from class SortableTableModel

getSortingColumn, isAscending, setAscending

Methods inherited from class AbstractTableModel

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

Methods inherited from class Object

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

Constructor Details

SystemPropertiesTableModel

public SystemPropertiesTableModel()

Creates a new table model using the properties of the current Java Virtual Machine.

Method Details

isSortable

public boolean isSortable(int column)

Returns true for the first column, and false otherwise - sorting is only allowed on the first column.

Overrides:

isSortable in class SortableTableModel

Parameters:

column - the column index.

Returns:

true for column 0, and false for all other columns.

getRowCount

public int getRowCount()

Returns the number of rows in the table model (that is, the number of system properties).

Returns:

the row count.

getColumnCount

public int getColumnCount()

Returns the number of columns in the table model. In this case, there are two columns: one for the property name, and one for the property value.

Returns:

the column count (always 2 in this case).

getColumnName

public String getColumnName(int column)

Returns the name of the specified column.

Specified by:

getColumnName in interface TableModel

Overrides:

getColumnName in class AbstractTableModel

Parameters:

column - the column index.

Returns:

the column name.

getValueAt

public Object getValueAt(int row,
 int column)

Returns the value at the specified row and column. This method supports the TableModel interface.

Parameters:

row - the row index.

column - the column index.

Returns:

the value.

sortByColumn

public void sortByColumn(int column,
 boolean ascending)

Sorts on the specified column.

Overrides:

sortByColumn in class SortableTableModel

Parameters:

column - the column index.

ascending - a flag that controls the sort order.