Table with frozen columns

In a recent project I've had the need of a Java Swing table with frozen columns.
After a long research at the Swing forum at java.sun.org and google I found out that
1. Currently there is no proper Open Source solution
2. All the postings at sun are good concepts, but far away from solutions
3. The only (for me )acceptable commercial solution is the JCTable from Quest (formerly KGroup)
Since I want to have full control over the source code of the table, I decided to collect all the tips from this forums and write my own table.
Here is the my first result:
http://jroller.com/resources/kriede/CoolTable.java
The main idea is to have two tables, one for the locked columns (=fixed columns = frozen columns) and one for the scrollable columns. With all the tips from this forum it was more or less a puzzle to make it work pretty. The next task will be to provide a JTable-like interface, meaning to write delegate/adapter methods to the API of the two nested JTable instances.

The FixedColumnExample from the link that you provided doesn't work with JDK 1.3 or higher.
Anyway, putting a seperate table for the fixed columns into the row header is the first step to solve the problem of fixed columns.
The next problem is to synchonize the scrolling behaviour of the two tables. The FixedColumnExample tries to do it by overwriting the valueChange method (maybe this was working with JDK 1.8), but with JDK 1.2 or higher it is recommended to use ChangeListeners. That's what I am doing, as also described here: http://www.chka.de/swing/components/JScrollPane-bugfix.html.
Another problem is navigation with the tab or arrow keys: The default actions for those events move the selection only within one JTable. It would be nicer, if e.g. the tab key moves the selection within one row across both, the fixed and the scrollable columns.
Those problems and some more are solved in the CoolTable sample:
http://jroller.com/resources/kriede/CoolTable.java
Please try it out and send comments.

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[NULLs Indicate Absence of Value|http://download-west.oracle.com/docs/cd/B14117_01/server.101/b10743/schema.htm#sthref725]
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¯\_(ツ)_/¯

Table with frozen columns

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