public abstract class AbstractTableModel extends Object implements TableModel, Serializable
TableModel interface. It takes care of
the management of listeners and provides some conveniences for generating
TableModelEvents and dispatching them to the listeners.
To create a concrete TableModel as a subclass of
AbstractTableModel you need only provide implementations
for the following three methods:
public int getRowCount(); public int getColumnCount(); public Object getValueAt(int row, int column);
Warning:
Serialized objects of this class will not be compatible with
future Swing releases. The current serialization support is
appropriate for short term storage or RMI between applications running
the same version of Swing. As of 1.4, support for long term storage
of all JavaBeans™
has been added to the java.beans package.
Please see XMLEncoder.
| Modifier and Type | Field and Description |
|---|---|
protected EventListenerList |
listenerList
List of listeners
|
| Constructor and Description |
|---|
AbstractTableModel() |
| Modifier and Type | Method and Description |
|---|---|
void |
addTableModelListener(TableModelListener l)
Adds a listener to the list that's notified each time a change
to the data model occurs.
|
int |
findColumn(String columnName)
Returns a column given its name.
|
void |
fireTableCellUpdated(int row,
int column)
Notifies all listeners that the value of the cell at
[row, column] has been updated. |
void |
fireTableChanged(TableModelEvent e)
Forwards the given notification event to all
TableModelListeners that registered
themselves as listeners for this table model. |
void |
fireTableDataChanged()
Notifies all listeners that all cell values in the table's
rows may have changed.
|
void |
fireTableRowsDeleted(int firstRow,
int lastRow)
Notifies all listeners that rows in the range
[firstRow, lastRow], inclusive, have been deleted. |
void |
fireTableRowsInserted(int firstRow,
int lastRow)
Notifies all listeners that rows in the range
[firstRow, lastRow], inclusive, have been inserted. |
void |
fireTableRowsUpdated(int firstRow,
int lastRow)
Notifies all listeners that rows in the range
[firstRow, lastRow], inclusive, have been updated. |
void |
fireTableStructureChanged()
Notifies all listeners that the table's structure has changed.
|
Class<?> |
getColumnClass(int columnIndex)
Returns
Object.class regardless of columnIndex. |
String |
getColumnName(int column)
Returns a default name for the column using spreadsheet conventions:
A, B, C, ...
|
<T extends EventListener> |
getListeners(Class<T> listenerType)
Returns an array of all the objects currently registered
as
FooListeners
upon this AbstractTableModel. |
TableModelListener[] |
getTableModelListeners()
Returns an array of all the table model listeners
registered on this model.
|
boolean |
isCellEditable(int rowIndex,
int columnIndex)
Returns false.
|
void |
removeTableModelListener(TableModelListener l)
Removes a listener from the list that's notified each time a
change to the data model occurs.
|
void |
setValueAt(Object aValue,
int rowIndex,
int columnIndex)
This empty implementation is provided so users don't have to implement
this method if their data model is not editable.
|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitgetColumnCount, getRowCount, getValueAtprotected EventListenerList listenerList
public String getColumnName(int column)
column cannot be found,
returns an empty string.getColumnName in interface TableModelcolumn - the column being queriedcolumnpublic int findColumn(String columnName)
TableModel interface and is not used by the
JTable.columnName - string containing name of column to be locatedcolumnName, or -1 if not foundpublic Class<?> getColumnClass(int columnIndex)
Object.class regardless of columnIndex.getColumnClass in interface TableModelcolumnIndex - the column being queriedpublic boolean isCellEditable(int rowIndex,
int columnIndex)
isCellEditable in interface TableModelrowIndex - the row being queriedcolumnIndex - the column being queriedTableModel.setValueAt(java.lang.Object, int, int)public void setValueAt(Object aValue, int rowIndex, int columnIndex)
setValueAt in interface TableModelaValue - value to assign to cellrowIndex - row of cellcolumnIndex - column of cellTableModel.getValueAt(int, int),
TableModel.isCellEditable(int, int)public void addTableModelListener(TableModelListener l)
addTableModelListener in interface TableModell - the TableModelListenerpublic void removeTableModelListener(TableModelListener l)
removeTableModelListener in interface TableModell - the TableModelListenerpublic TableModelListener[] getTableModelListeners()
TableModelListeners
or an empty
array if no table model listeners are currently registeredaddTableModelListener(javax.swing.event.TableModelListener),
removeTableModelListener(javax.swing.event.TableModelListener)public void fireTableDataChanged()
JTable should redraw the
table from scratch. The structure of the table (as in the order of the
columns) is assumed to be the same.public void fireTableStructureChanged()
JTable receives this event and its
autoCreateColumnsFromModel
flag is set it discards any table columns that it had and reallocates
default columns in the order they appear in the model. This is the
same as calling setModel(TableModel) on the
JTable.TableModelEvent,
EventListenerListpublic void fireTableRowsInserted(int firstRow,
int lastRow)
[firstRow, lastRow], inclusive, have been inserted.firstRow - the first rowlastRow - the last rowTableModelEvent,
EventListenerListpublic void fireTableRowsUpdated(int firstRow,
int lastRow)
[firstRow, lastRow], inclusive, have been updated.firstRow - the first rowlastRow - the last rowTableModelEvent,
EventListenerListpublic void fireTableRowsDeleted(int firstRow,
int lastRow)
[firstRow, lastRow], inclusive, have been deleted.firstRow - the first rowlastRow - the last rowTableModelEvent,
EventListenerListpublic void fireTableCellUpdated(int row,
int column)
[row, column] has been updated.row - row of cell which has been updatedcolumn - column of cell which has been updatedTableModelEvent,
EventListenerListpublic void fireTableChanged(TableModelEvent e)
TableModelListeners that registered
themselves as listeners for this table model.e - the event to be forwardedaddTableModelListener(javax.swing.event.TableModelListener),
TableModelEvent,
EventListenerListpublic <T extends EventListener> T[] getListeners(Class<T> listenerType)
FooListeners
upon this AbstractTableModel.
FooListeners are registered using the
addFooListener method.
You can specify the listenerType argument
with a class literal,
such as
FooListener.class.
For example, you can query a
model m
for its table model listeners with the following code:
TableModelListener[] tmls = (TableModelListener[])(m.getListeners(TableModelListener.class));If no such listeners exist, this method returns an empty array.
listenerType - the type of listeners requested; this parameter
should specify an interface that descends from
java.util.EventListenerFooListeners on this component,
or an empty array if no such
listeners have been addedClassCastException - if listenerType
doesn't specify a class or interface that implements
java.util.EventListenergetTableModelListeners() Submit a bug or feature
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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