TableModel
| javax.swing.table.TableModel |
 Known Indirect Subclasses
|
Class Overview
The TableModel interface specifies the methods the
JTable will use to interrogate a tabular data model.
The JTable can be set up to display any data
model which implements the
TableModel interface with a couple of lines of code:
TableModel myData = new MyTableModel();
JTable table = new JTable(myData);
For further documentation, see Creating a Table Model in The Java Tutorial.
See Also
Summary
| Public Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Adds a listener to the list that is notified each time a change
to the data model occurs.
| |||||||||||
Returns the most specific superclass for all the cell values
in the column.
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Returns the number of columns in the model.
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Returns the name of the column at
columnIndex. | |||||||||||
Returns the number of rows in the model.
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Returns the value for the cell at
columnIndex and
rowIndex. | |||||||||||
Returns true if the cell at
rowIndex and
columnIndex
is editable. | |||||||||||
Removes a listener from the list that is notified each time a
change to the data model occurs.
| |||||||||||
Sets the value in the cell at
columnIndex and
rowIndex to aValue. | |||||||||||
Public Methods
public abstract void addTableModelListener (TableModelListener l)
Adds a listener to the list that is notified each time a change to the data model occurs.
Parameters
| l | the TableModelListener |
|---|
public abstract 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.
Parameters
| columnIndex | the index of the column |
|---|
Returns
- the common ancestor class of the object values in the model.
public abstract 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
public abstract 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.
Parameters
| columnIndex | the index of the column |
|---|
Returns
- the name of the column
public abstract 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
public abstract 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
public abstract boolean isCellEditable (int rowIndex, int columnIndex)
Returns true if the cell at rowIndex and
columnIndex
is editable. Otherwise, setValueAt on the cell will not
change the value of that cell.
Parameters
| rowIndex | the row whose value to be queried |
|---|---|
| columnIndex | the column whose value to be queried |
Returns
- true if the cell is editable
See Also
public abstract void removeTableModelListener (TableModelListener l)
Removes a listener from the list that is notified each time a change to the data model occurs.
Parameters
| l | the TableModelListener |
|---|
public abstract void setValueAt (Object aValue, int rowIndex, int columnIndex)
Sets the value in the cell at columnIndex and
rowIndex to aValue.
Parameters
| aValue | the new value |
|---|---|
| rowIndex | the row whose value is to be changed |
| columnIndex | the column whose value is to be changed |