Interface java.awt.swing.table.TableModel
- Implementing Classes:
- AbstractTableModel
- public interface TableModel
The TableModel interface ispecifies 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);
- See Also:
- JTable, AbstractTableModel
Method Summary
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void
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addTableModelListener(TableModelListener l)
Add a listener to the list that's notified each time a change
to the data model occurs.
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Class
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getColumnClass(int columnIndex)
Returns the lowest common denominator Class in the column.
|
int
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getColumnCount()
Returns the number of columns managed by the data source object.
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String
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getColumnName(int columnIndex)
Returns the name of the column at columnIndex.
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int
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getRowCount()
Returns the number of records managed by the data source object.
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Object
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getValueAt(int rowIndex,
int columnIndex)
Returns an attribute value for the cell at columnIndex
and rowIndex.
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boolean
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isCellEditable(int rowIndex,
int columnIndex)
Returns true if the cell at rowIndex and columnIndex
is editable.
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void
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removeTableModelListener(TableModelListener l)
Remove a listener from the list that's notified each time a
change to the data model occurs.
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void
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setValueAt(Object aValue,
int rowIndex,
int columnIndex)
Sets an attribute value for the record in the cell at
columnIndex and rowIndex.
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getRowCount
public int getRowCount()
- Returns the number of records managed by the data source object. A
JTable uses this method to determine how many rows it
should create and display. This method should be quick, as it
is call by JTable quite frequently.
- Returns:
- the number or rows in the model
- See Also:
- getColumnCount()
getColumnCount
public int getColumnCount()
- Returns the number of columns managed by the data source object. A
JTable uses this method to determine how many columns it
should create and display on initialization.
- Returns:
- the number or columns in the model
- See Also:
- getRowCount()
getColumnName
public 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 on a table can have the same name.
- Parameters:
columnIndex
- the index of column
- Returns:
- the name of the column
getColumnClass
public Class getColumnClass(int columnIndex)
- Returns the lowest common denominator Class in the column. This is used
by the table to set up a default renderer and editor for the column.
- Returns:
- the common ancestor class of the object values in the model.
isCellEditable
public 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 is to be looked up
columnIndex
- the column whose value is to be looked up
- Returns:
- true if the cell is editable.
- See Also:
- setValueAt()
getValueAt
public Object getValueAt(int rowIndex,
int columnIndex)
- Returns an attribute value for the cell at columnIndex
and rowIndex.
- Parameters:
rowIndex
- the row whose value is to be looked up
columnIndex
- the column whose value is to be looked up
- Returns:
- the value Object at the specified cell
setValueAt
public void setValueAt(Object aValue,
int rowIndex,
int columnIndex)
- Sets an attribute value for the record in the cell at
columnIndex and rowIndex. aValue is
the new value.
- Parameters:
aValue
- the new value
rowIndex
- the row whose value is to be changed
columnIndex
- the column whose value is to be changed
- See Also:
- getValueAt(), isCellEditable()
addTableModelListener
public void addTableModelListener(TableModelListener l)
- Add a listener to the list that's notified each time a change
to the data model occurs.
- Parameters:
l
- the TableModelListener
removeTableModelListener
public void removeTableModelListener(TableModelListener l)
- Remove a listener from the list that's notified each time a
change to the data model occurs.
- Parameters:
l
- the TableModelListener
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