Serializable
, TableModel
DefaultTableModel
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 | Description |
---|---|---|
protected EventListenerList |
listenerList |
List of listeners |
Modifier | Constructor | Description |
---|---|---|
protected |
Constructor for subclasses to call. |
Modifier and Type | Method | Description |
---|---|---|
void |
addTableModelListener |
Adds a listener to the list that's notified each time a change to the data model occurs. |
int |
findColumn |
Returns a column given its name. |
void |
fireTableCellUpdated |
Notifies all listeners that the value of the cell at [row, column] has been updated. |
void |
fireTableChanged |
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 |
Notifies all listeners that rows in the range [firstRow, lastRow] , inclusive, have been deleted. |
void |
fireTableRowsInserted |
Notifies all listeners that rows in the range [firstRow, lastRow] , inclusive, have been inserted. |
void |
fireTableRowsUpdated |
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 |
Returns Object.class regardless of columnIndex . |
String |
getColumnName |
Returns a default name for the column using spreadsheet conventions: A, B, C, ... |
<T extends EventListener> |
getListeners |
Returns an array of all the objects currently registered as FooListener s upon this AbstractTableModel . |
TableModelListener[] |
getTableModelListeners() |
Returns an array of all the table model listeners registered on this model. |
boolean |
isCellEditable |
Returns false. |
void |
removeTableModelListener |
Removes a listener from the list that's notified each time a change to the data model occurs. |
void |
setValueAt |
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, wait
getColumnCount, getRowCount, getValueAt
protected EventListenerList listenerList
protected AbstractTableModel()
public String getColumnName(int column)
column
cannot be found, returns an empty string.getColumnName
in interface TableModel
column
- the column being queriedcolumn
public 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 TableModel
columnIndex
- the column being queriedpublic boolean isCellEditable(int rowIndex, int columnIndex)
isCellEditable
in interface TableModel
rowIndex
- the row being queriedcolumnIndex
- the column being queriedpublic void setValueAt(Object aValue, int rowIndex, int columnIndex)
setValueAt
in interface TableModel
aValue
- value to assign to cellrowIndex
- row of cellcolumnIndex
- column of cellpublic void addTableModelListener(TableModelListener l)
addTableModelListener
in interface TableModel
l
- the TableModelListenerpublic void removeTableModelListener(TableModelListener l)
removeTableModelListener
in interface TableModel
l
- the TableModelListenerpublic TableModelListener[] getTableModelListeners()
TableModelListener
s or an empty array if no table model listeners are currently registeredpublic 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
.public void fireTableRowsInserted(int firstRow, int lastRow)
[firstRow, lastRow]
, inclusive, have been inserted.firstRow
- the first rowlastRow
- the last rowpublic void fireTableRowsUpdated(int firstRow, int lastRow)
[firstRow, lastRow]
, inclusive, have been updated.firstRow
- the first rowlastRow
- the last rowpublic void fireTableRowsDeleted(int firstRow, int lastRow)
[firstRow, lastRow]
, inclusive, have been deleted.firstRow
- the first rowlastRow
- the last rowpublic 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 updatedpublic void fireTableChanged(TableModelEvent e)
TableModelListeners
that registered themselves as listeners for this table model.e
- the event to be forwardedpublic <T extends EventListener> T[] getListeners(Class<T> listenerType)
FooListener
s upon this AbstractTableModel
. FooListener
s 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.
T
- the listener typelistenerType
- the type of listeners requestedFooListener
s 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.EventListener
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Licensed under the GNU General Public License, version 2, with the Classpath Exception.
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https://docs.oracle.com/en/java/javase/21/docs/api/java.desktop/javax/swing/table/AbstractTableModel.html