com.jgoodies.binding.extras
Class DelegatingTableModel

java.lang.Object
  javax.swing.table.AbstractTableModel
      com.jgoodies.binding.extras.DelegatingTableModel

All Implemented Interfaces:

java.io.Serializable, javax.swing.table.TableModel

public final class DelegatingTableModel
extends javax.swing.table.AbstractTableModel

This implementation of the TableModel interface delegates all requests to an underlying TableModel delegate. It can be used to change a JTable's model while the table is beeing displayed.

Note: This class is not yet part of the binary Binding library; it comes with the Binding distributions as an extra. The API is work in progress and may change without notice; this class may even be completely removed from future distributions. If you want to use this class, you may consider copying it into your codebase.

Version:

$Revision: 1.2 $

Author:

Karsten Lentzsch

See Also:

Serialized Form

Field Summary

Fields inherited from class javax.swing.table.AbstractTableModel

listenerList

Constructor Summary

DelegatingTableModel()
Constructs a TableAdaptor on a dummy TableModel.

DelegatingTableModel(javax.swing.table.TableModel delegate)
Constructs a TableAdaptor on the given delegate TableModel.

DelegatingTableModel(com.jgoodies.binding.value.ValueModel delegateChannel)
Constructs a TableAdaptor that holds the delegated TableModel in the given delegate channel.

Method Summary

java.lang.Class	getColumnClass(int columnIndex) Returns the most specific superclass for all the cell values in the column.
int	getColumnCount() Returns the number of columns in the model.
java.lang.String	getColumnName(int columnIndex) Returns the name of the column at columnIndex.
javax.swing.table.TableModel	getDelegate() Returns the current TableModel delegate.
int	getRowCount() Returns the number of rows in the model.
java.lang.Object	getValueAt(int rowIndex, int columnIndex) Returns the value for the cell at columnIndex and rowIndex.
void	setDelegate(javax.swing.table.TableModel newDelegate) Sets a new TableModel delegate.

Methods inherited from class javax.swing.table.AbstractTableModel

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

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingTableModel

public DelegatingTableModel(com.jgoodies.binding.value.ValueModel delegateChannel)

Constructs a TableAdaptor that holds the delegated TableModel in the given delegate channel.

Parameters:

delegateChannel - a ValueModel that holds the TableModel

Throws:

java.lang.NullPointerException - if delegateChannel is null

DelegatingTableModel

public DelegatingTableModel(javax.swing.table.TableModel delegate)

Constructs a TableAdaptor on the given delegate TableModel.

Parameters:

delegate - a TableModel that is used as initial TableModel delegate

DelegatingTableModel

public DelegatingTableModel()

Constructs a TableAdaptor on a dummy TableModel.

Method Detail

getDelegate

public javax.swing.table.TableModel getDelegate()

Returns the current TableModel delegate.

Returns:

the current TableModel delegate

setDelegate

public void setDelegate(javax.swing.table.TableModel newDelegate)

Sets a new TableModel delegate.

Parameters:

newDelegate - the new TableModel delegate

getColumnClass

public java.lang.Class getColumnClass(int columnIndex)

Returns the most specific superclass for all the cell values in the column. This is used by the JTable to set up a default renderer and editor for the column.

Specified by:

getColumnClass in interface javax.swing.table.TableModel

Overrides:

getColumnClass in class javax.swing.table.AbstractTableModel

Parameters:

columnIndex - the index of the column

Returns:

the common ancestor class of the object values in the model.

getColumnCount

public int getColumnCount()

Returns the number of columns in the model. A JTable uses this method to determine how many columns it should create and display by default.

Returns:

the number of columns in the model

See Also:

getRowCount()

getColumnName

public java.lang.String getColumnName(int columnIndex)

Returns the name of the column at columnIndex. This is used to initialize the table's column header name. Note: this name does not need to be unique; two columns in a table can have the same name.

Specified by:

getColumnName in interface javax.swing.table.TableModel

Overrides:

getColumnName in class javax.swing.table.AbstractTableModel

Parameters:

columnIndex - the index of the column

Returns:

the name of the column

getRowCount

public int getRowCount()

Returns the number of rows in the model. A JTable uses this method to determine how many rows it should display. This method should be quick, as it is called frequently during rendering.

Returns:

the number of rows in the model

See Also:

getColumnCount()

getValueAt

public java.lang.Object getValueAt(int rowIndex,
                                   int columnIndex)

Returns the value for the cell at columnIndex and rowIndex.

Parameters:

rowIndex - the row whose value is to be queried

columnIndex - the column whose value is to be queried

Returns:

the value Object at the specified cell