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Java™ Platform Standard Ed. 6 |
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java.lang.Objectjava.util.EventObject
javax.swing.event.TableModelEvent
public class TableModelEvent
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 deletedIt 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 see XMLEncoder
.
TableModel
Field Summary | |
---|---|
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 |
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source |
Constructor Summary | |
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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. |
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TableModelEvent(TableModel source,
int row)
This row of data has been updated. |
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TableModelEvent(TableModel source,
int firstRow,
int lastRow)
The data in rows [firstRow, lastRow] have been updated. |
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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. |
Method Summary | |
---|---|
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. |
Methods inherited from class java.util.EventObject |
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getSource, toString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public static final int INSERT
public static final int UPDATE
public static final int DELETE
public static final int HEADER_ROW
public static final int ALL_COLUMNS
protected int type
protected int firstRow
protected int lastRow
protected int column
Constructor Detail |
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public TableModelEvent(TableModel source)
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)
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)
public TableModelEvent(TableModel source, int firstRow, int lastRow, int column)
public TableModelEvent(TableModel source, int firstRow, int lastRow, int column, int type)
The type should be one of: INSERT, UPDATE and DELETE.
Method Detail |
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public int getFirstRow()
public int getLastRow()
public int getColumn()
public int getType()
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Java™ Platform Standard Ed. 6 |
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