Losing table CellRenderer in JTable

Question

Hi,
I used the TableSorter in the SwingDemo page for a JTable. I had to extend this TableSorter to include some of the features in my original TableModel, such as allowing the data (Vector) to be refreshed by a TimerTask.
When my TableModel replaced the data Vector, I tell the TableSorter to setTableModel(), using the same one. Something like:
MyTableModel model = (MyTableModel)sorter.getTableModel();
model.replaceData(new_data_vector);
sorter.setTableModel(model);
which resulted in
1. clearSortingState();
2. fireTableStructureChanged();
Once it refreshed the table with new model, the CellRenderer for a column stopped functioning. All the CellRenderer does is to take the Long value from a column's data and formatt it to a date String. So the display is a String, but the back end model is a Long.
Could you tell me what am I doing wrong?

Answer 1

Swing related questions should be posted in the Swing forum.
fireTableStructureChanged();When the above method is fired the TableColumnModel is rebuilt causing all the renderers and editors to be reset to the defaults. So you need to either
a) reset the renderer to your custom renderer, or
b) use table.setAutoCreateColumnsFromModel(false) which will prevent the TableColumnModel from being recreated. This assume the table structure remains the same, only the data is changed.