- java.lang.Object
-
- java.util.EventObject
-
- javax.swing.event.TableModelEvent
-
- All Implemented Interfaces:
- Serializable
public class TableModelEvent extends EventObject
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 JavaBeansTM has been added to the
java.beans
package. Please seeXMLEncoder
.- See Also:
TableModel
-
-
Field Summary
Fields Modifier and Type Field and Description static int
ALL_COLUMNS
Specifies all columns in a row or rows.protected int
column
static int
DELETE
Identifies the removal of rows or columns.protected int
firstRow
static int
HEADER_ROW
Identifies the header row.static int
INSERT
Identifies the addtion of new rows or columns.protected int
lastRow
protected int
type
static int
UPDATE
Identifies a change to existing data.-
Fields inherited from class java.util.EventObject
source
-
-
Constructor Summary
Constructors Constructor and Description TableModelEvent(TableModel source)
All row data in the table has changed, listeners should discard any state that was based on the rows and requery theTableModel
to get the new row count and all the appropriate values.TableModelEvent(TableModel source, int row)
This row of data has been updated.TableModelEvent(TableModel source, int firstRow, int lastRow)
The data in rows [firstRow, lastRow] have been updated.TableModelEvent(TableModel source, int firstRow, int lastRow, int column)
The cells in column column in the range [firstRow, lastRow] have been updated.TableModelEvent(TableModel source, int firstRow, int lastRow, int column, int type)
The cells from (firstRow, column) to (lastRow, column) have been changed.
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Method Summary
Methods Modifier and Type Method and Description int
getColumn()
Returns the column for the event.int
getFirstRow()
Returns the first row that changed.int
getLastRow()
Returns the last row that changed.int
getType()
Returns the type of event - one of: INSERT, UPDATE and DELETE.
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-
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Field Detail
-
INSERT
public static final int INSERT
Identifies the addtion of new rows or columns.- See Also:
- Constant Field Values
-
UPDATE
public static final int UPDATE
Identifies a change to existing data.- See Also:
- Constant Field Values
-
DELETE
public static final int DELETE
Identifies the removal of rows or columns.- See Also:
- Constant Field Values
-
HEADER_ROW
public static final int HEADER_ROW
Identifies the header row.- See Also:
- Constant Field Values
-
ALL_COLUMNS
public static final int ALL_COLUMNS
Specifies all columns in a row or rows.- See Also:
- Constant Field Values
-
type
protected int type
-
firstRow
protected int firstRow
-
lastRow
protected int lastRow
-
column
protected int column
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Constructor Detail
-
TableModelEvent
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 theTableModel
to get the new row count and all the appropriate values. TheJTable
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.
-
TableModelEvent
public TableModelEvent(TableModel source, int row)
This row of data has been updated. To denote the arrival of a completely new table with a different structure useHEADER_ROW
as the value for therow
. When theJTable
receives this event and itsautoCreateColumnsFromModel
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 callingsetModel(TableModel)
on theJTable
.
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TableModelEvent
public TableModelEvent(TableModel source, int firstRow, int lastRow)
The data in rows [firstRow, lastRow] have been updated.
-
TableModelEvent
public TableModelEvent(TableModel source, int firstRow, int lastRow, int column)
The cells in column column in the range [firstRow, lastRow] have been updated.
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TableModelEvent
public TableModelEvent(TableModel source, int firstRow, int lastRow, int column, int type)
The cells from (firstRow, column) to (lastRow, column) have been changed. The column refers to the column index of the cell in the model's co-ordinate system. When column is ALL_COLUMNS, all cells in the specified range of rows are considered changed.The type should be one of: INSERT, UPDATE and DELETE.
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Method Detail
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getFirstRow
public int getFirstRow()
Returns the first row that changed. HEADER_ROW means the meta data, ie. names, types and order of the columns.
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getLastRow
public int getLastRow()
Returns the last row that changed.
-
getColumn
public int getColumn()
Returns the column for the event. If the return value is ALL_COLUMNS; it means every column in the specified rows changed.
-
getType
public int getType()
Returns the type of event - one of: INSERT, UPDATE and DELETE.
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Vielen Dank im Voraus.
Dokument erstellt 11/06/2005, zuletzt geändert 04/03/2020
Quelle des gedruckten Dokuments:https://www.gaudry.be/de/java-api-rf-javax/swing/event/tablemodelevent.html
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