AggregateTable(Model) questions

[jfilho036]

Hello jide,
I am a newbie to jide and I have questions related to AggregateTable.
1) Should the AggregateTableModel automatically change whenever the underlying actual table model changes due to new rows/columns? I did a small test where I create a AggregateTable with a DefaultTableModel, and whenever new rows/columns are inserted to DefaultTableModel, nothing happens to AggregateTableModel. What should I do to ensure AggregateTableModel refreshes after underlying TableModel changes?
2) While doing this test, I passed an empty DefaultTableModel arg (0 rows, 0 columns) to AggregateTable because I wanted to add data asynchronously. However AggregateTable generated the following exception. (Maybe because it requires a TableModel with at least 1 column?)
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at com.jidesoft.pivot.AggregateTableModel.setAggregatedColumns(Unknown Source)
at com.jidesoft.pivot.AggregateTableModel.<init>(Unknown Source)
at com.jidesoft.pivot.AggregateTableModel.<init>(Unknown Source)
at com.jidesoft.pivot.AggregateTable.<init>(Unknown Source)

Thanks for your help,

Jose

[JIDE Support]

1. It should update automatically. Do you call DefaultTableModel#addRow or DefaultTableModel#getDataVector().add. The former will fire the table model event which we depend on. It will work. The latter won't work as no event is fired.
2. We always aggregate the first column. That's why it got NPE when the table model is empty. I will see if we can fix it. If the table model is empty, we just don't aggregate.

Thanks,

[jfilho036]

Thanks for your reply.

I still have issues with 1). Here is what happens in my demo code:
a) If I add columns to DeafultTableModel by calling defaultTableModel.addColumn(), AggregateTable(Model) does not update itself. Here is my debug stmts for every addColumn call (columnCount of AggregateTableModel does not change):
Adding data to DefaultTableModel
Default model cols 2,rows 2
Agg model cols 1,rows 2
Adding data to DefaultTableModel
Default model cols 3,rows 2
Agg model cols 1,rows 2
Adding data to DefaultTableModel
Default model cols 4,rows 2
Agg model cols 1,rows 2
...

b) If I add rows to DefaultTableModel by calling defaultTableModel.addRow(), AggregateTable(Model) shows new added rows. Here is my debug stmts for every addColumn call (rowCount of AggregateTableModel does change):
Adding data to DefaultTableModel
Default model cols 1,rows 2
Agg model cols 1,rows 2
Adding data to DefaultTableModel
Default model cols 1,rows 3
Agg model cols 1,rows 3
Adding data to DefaultTableModel
Default model cols 1,rows 4
Agg model cols 1,rows 4
...

So it seems that AggregateTableModel refreshes when adding rows, but it does not refresh when adding columns. Any thoughts about it? Your help is greatly appreciated.

Thanks a lot!!!

Jose

[JIDE Support]

I will take a look. For now, you can call AggregateTableModel#setAggregate(...) then aggregate() again when you add a column.

Thanks,

[jfilho036]

Dude,

Your workaround works! And I just had to call aggTableModel.setAggregatedColumns(). No need for aggTableModel.aggregate()

It would be great if this call was not necessary though.

Thanks!

Jose

[JIDE Support]

Just so you know, 2.4.0 release should fix this. Please verify it and let us know.

Thanks,