Column masking table.

Hi Guys,
Need a bit of advise on how to best implement a table that masks it's columns.
Here is what I am trying to do:
I have a table which is initially empty, the table is populated by a data feed which will always start t seconds after the table is launched.
The data feed will contain data for n number of columns ( n < 20 ) and m number of rows ( m < 50).
Here n represents price tier for a given symbol.
Initially, the table will only show 3 columns and all the rows.
These 3 columns are Symbol, Bid, Ask (these bid/ask prices are associated with tier1).
Now, upon click of a button, I can have the table in "full" mode, which will show all the n columns.
These n columns will look like
Symbol, Bid, Ask, Bid1, Ask1, Bid2, Ask2, ... , Bidn, Askn
Here is what I have so far:
I started out by creating a bean that holds bid, ask, tier for a every n (tier). So ultimately I have a list of beans.
I also have a map that maps the symbol to the above list of beans.
The point where I am stumped is do I initially remove all the columns except for Symbol and tier1 bid/ask.
And then when the table is in full mode, iterate over my map and add all the columns.
Or is there a better way to do this?
Also, since I don't know the names of the columns before hand, how do I create columns when I actually receive the data.
Any ideas, tips are much appreciated.
Cheers,
Vic

Thx Camickr, your this and a few previous posts gave an idea which seems to be working pretty well now.
Firstly, I stopped the table from auto-magically creating columns from the model.
I then created two lists of columns, one corresponding to initial mode and another one for the full mode.
When I first receive the data, I set the table's column to the initial list and call fireTableStructureChanged().
Similarly, when the table is expanded, I set table's column to the expanded list and fire the event again.
Many thanks.
Edited by: CaptainHastings on Apr 8, 2009 8:59 PM

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