lazy computations on tree selection

[Bhagya Tangutur]

i am showing properties of node in the right hand side on tree selection.
what i did is i implemented tree selection listener and updating the properties.It works very well.
performance improvements:
what happened in previous case is: if user selects different nodes in tree rapidly.It just tries to fetch information for each node.I want to show properties of last node in this process.I want to do it just like windows explorer.
Thanks