Yes concrete cells reRendering could be implemented for our data iteration components. Read about ajaxKeys attribute for data components. Also please check a4j:repeat richfaces-demo page.
I have a one questions about
listBean.list must be a Set containing only Strings (am I right?).
What Strings should I take? Strings from my Objects or ID's ?
I have no ID for my rows, only for my columns:
<rich:column id="rowID"> </rich:column>
It should be filled with rowKeys. Just simple Integers by default.
Please visit the link in my signature and checkout the sources for richfaces-demo in order to check how it works.