Hierarchical data table for JSF2 and RichFaces

I'm using RichFaces on my JSF2 application, and I need a way to have something like a tree-column or tree-table.

As far as I know, there's no support for such thing in RichFaces. Something's mentioned for RichFaces 4.0, but the priority of this in their plan isn't promising at all, and I don't think that it's going to be included in 4.0.

I know there's a tree table available in IceFaces, but I'd rather not add another library to avoid conflicts and learning curve and ...

So, I'm looking for the simplest way that I can achieve the same results with minimum开发者_StackOverflow efforts, maybe using sub-tables in RichFaces? Any ideas would be appreciated.

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Someone has written a tree table component before. May be useful for you. Take a look at here.

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In the next version (coming in a few weeks) it will have more features