Nested Portlets and ability to dynamically render Portlets

hi,
I have a dynamic page created to show a set of product items. This is then rendered as a Portlets- each a specific instance (parameter) of the dynamic page.
If the User decides to look at a different set of "groups"/portlets, I would like to call an API which renders as many portlets as the number of groups User wishes to see.
I am basically looking for a way to spawn certain number of portlets on a page, and supply a parameter to each of them while doing it.
So, every user would have his/her set of Portlets chosen.
Keep in mind that all these portlets are the same, but different parameters.
Is there an API to call/render portlets on a page.
regards
-Ananth

Ananth did you find this
How to call a portlet on the page

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 2020 21-APR-10 0 0 114 1143 1257 10000
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I was perusing the Java Tutorials on Nested Classes and I came across this...
[http://java.sun.com/docs/books/tutorial/java/javaOO/nested.html|http://java.sun.com/docs/books/tutorial/java/javaOO/nested.html]
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}~

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