TableModelEvent JDK 1.6)

Description

public class TableModelEvent

TableModelEvent is used to notify listeners that a table model has changed.

TableModelEvent is used to notify listeners that a table model has changed. The model event describes changes to a TableModel and all references to rows and columns are in the co-ordinate system of the model. Depending on the parameters used in the constructors, the TableModelevent can be used to specify the following types of changes:

 TableModelEvent(source);              //  The data, ie. all rows changed 
 TableModelEvent(source, HEADER_ROW);  //  Structure change, reallocate TableColumns
 TableModelEvent(source, 1);           //  Row 1 changed
 TableModelEvent(source, 3, 6);        //  Rows 3 to 6 inclusive changed
 TableModelEvent(source, 2, 2, 6);     //  Cell at (2, 6) changed
 TableModelEvent(source, 3, 6, ALL_COLUMNS, INSERT); // Rows (3, 6) were inserted
 TableModelEvent(source, 3, 6, ALL_COLUMNS, DELETE); // Rows (3, 6) were deleted

It is possible to use other combinations of the parameters, not all of them are meaningful. By subclassing, you can add other information, for example: whether the event WILL happen or DID happen. This makes the specification of rows in DELETE events more useful but has not been included in the swing package as the JTable only needs post-event notification.

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^TM has been added to the java.beans package. Please see XMLEncoder.

See also: TableModel

Constructors

public TableModelEvent (TableModel source)

All row data in the table has changed, listeners should discard any state that was based on the rows and requery the TableModel to get the new row count and all the appropriate values.

All row data in the table has changed, listeners should discard any state
that was based on the rows and requery the TableModel
to get the new row count and all the appropriate values.
The JTable will repaint the entire visible region on
receiving this event, querying the model for the cell values that are visible.
The structure of the table ie, the column names, types and order
have not changed.

public TableModelEvent (TableModel source, int row)

This row of data has been updated.

This row of data has been updated.
To denote the arrival of a completely new table with a different structure
use HEADER_ROW as the value for the row.
When the JTable receives this event and its
autoCreateColumnsFromModel
flag is set it discards any TableColumns that it had and reallocates
default ones in the order they appear in the model. This is the
same as calling setModel(TableModel) on the JTable.

public TableModelEvent (TableModel source, int firstRow, int lastRow)

The data in rows [firstRow, lastRow] have been updated.

public TableModelEvent (TableModel source, int firstRow, int lastRow, int column)

The cells in column column in the range [firstRow, lastRow] have been updated.

public TableModelEvent (TableModel source, int firstRow, int lastRow, int column, int type)

The cells from (firstRow, column) to (lastRow, column) have been changed.

Methods

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public int getColumn ()

Returns the column for the event.

public int getFirstRow ()

Returns the first row that changed.

public int getLastRow ()

Returns the last row that changed.

public Object getSource () [Inherited From EventObject]

The object on which the Event initially occurred.

public int getType ()

Returns the type of event - one of: INSERT, UPDATE and DELETE.

public String toString () [Inherited From EventObject]

Returns a String representation of this EventObject.

Fields

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publicfinalstatic int ALL_COLUMNS = "-1"

Specifies all columns in a row or rows.

protected int column

publicfinalstatic int DELETE = "-1"

Identifies the removal of rows or columns.

protected int firstRow

publicfinalstatic int HEADER_ROW = "-1"

Identifies the header row.

publicfinalstatic int INSERT = "1"

Identifies the addtion of new rows or columns.

protected int lastRow

protectedtransient Object source [Inherited From EventObject]

The object on which the Event initially occurred.

protected int type

publicfinalstatic int UPDATE = "0"

Identifies a change to existing data.