- java.lang.Object
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- java.util.EventObject
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- javax.swing.event.TableModelEvent
 
 
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- 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 JavaBeans™ has been added to the java.beanspackage. Please seeXMLEncoder.- See Also:
- TableModel, Serialized Form
 
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Field SummaryFields Modifier and Type Field Description static intALL_COLUMNSSpecifies all columns in a row or rows.protected intcolumnThe column for the event.static intDELETEIdentifies the removal of rows or columns.protected intfirstRowThe first row that has changed.static intHEADER_ROWIdentifies the header row.static intINSERTIdentifies the addition of new rows or columns.protected intlastRowThe last row that has changed.protected inttypeThe type of the event.static intUPDATEIdentifies a change to existing data.- 
Fields declared in class java.util.EventObjectsource
 
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Constructor SummaryConstructors Constructor 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 theTableModelto 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 SummaryAll Methods Instance Methods Concrete Methods Modifier and Type Method Description intgetColumn()Returns the column for the event.intgetFirstRow()Returns the first row that changed.intgetLastRow()Returns the last row that changed.intgetType()Returns the type of event - one of: INSERT, UPDATE and DELETE.- 
Methods declared in class java.util.EventObjectgetSource, toString
 
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Field Detail- 
INSERTpublic static final int INSERT Identifies the addition of new rows or columns.- See Also:
- Constant Field Values
 
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UPDATEpublic static final int UPDATE Identifies a change to existing data.- See Also:
- Constant Field Values
 
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DELETEpublic static final int DELETE Identifies the removal of rows or columns.- See Also:
- Constant Field Values
 
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HEADER_ROWpublic static final int HEADER_ROW Identifies the header row.- See Also:
- Constant Field Values
 
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ALL_COLUMNSpublic static final int ALL_COLUMNS Specifies all columns in a row or rows.- See Also:
- Constant Field Values
 
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typeprotected int type The type of the event.
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firstRowprotected int firstRow The first row that has changed.
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lastRowprotected int lastRow The last row that has changed.
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columnprotected int column The column for the event.
 
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Constructor Detail- 
TableModelEventpublic TableModelEvent(TableModel source) All row data in the table has changed, listeners should discard any state that was based on the rows and requery theTableModelto get the new row count and all the appropriate values. TheJTablewill 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.- Parameters:
- source- the- TableModelaffected by this event
 
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TableModelEventpublic 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_ROWas the value for therow. When theJTablereceives this event and itsautoCreateColumnsFromModelflag 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.- Parameters:
- source- the- TableModelaffected by this event
- row- the row which has been updated
 
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TableModelEventpublic TableModelEvent(TableModel source, int firstRow, int lastRow) The data in rows [firstRow, lastRow] have been updated.- Parameters:
- source- the- TableModelaffected by this event
- firstRow- the first row affected by this event
- lastRow- the last row affected by this event
 
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TableModelEventpublic TableModelEvent(TableModel source, int firstRow, int lastRow, int column) The cells in column column in the range [firstRow, lastRow] have been updated.- Parameters:
- source- the- TableModelaffected by this event
- firstRow- the first row affected by this event
- lastRow- the last row affected by this event
- column- the column index of cells changed;- ALL_COLUMNSsignifies all cells in the specified range of rows are changed.
 
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TableModelEventpublic 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. - Parameters:
- source- the- TableModelaffected by this event
- firstRow- the first row affected by this event
- lastRow- the last row affected by this event
- column- the column index of cells changed;- ALL_COLUMNSsignifies all cells in the specified range of rows are changed.
- type- the type of change signified by this even,- INSERT,- DELETEor- UPDATE
 
 
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Method Detail- 
getFirstRowpublic int getFirstRow() Returns the first row that changed. HEADER_ROW means the meta data, ie. names, types and order of the columns.- Returns:
- an integer signifying the first row changed
 
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getLastRowpublic int getLastRow() Returns the last row that changed.- Returns:
- an integer signifying the last row changed
 
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getColumnpublic int getColumn() Returns the column for the event. If the return value is ALL_COLUMNS; it means every column in the specified rows changed.- Returns:
- an integer signifying which column is affected by this event
 
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getTypepublic int getType() Returns the type of event - one of: INSERT, UPDATE and DELETE.- Returns:
- the type of change to a table model, an INSERTorDELETEof row(s) or column(s) orUPDATEto data
 
 
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