ok, weeks later I have found this example and tried to adapt it on my needs. But now I've run in an other problem.
In the example you are using a session scoped bean for 'PersonBean'. But that#s the point. I wan't to push the ext. datatable to an own composite component. It seems not to work within an a composite component. the Filter and SortOrder values are stored correctly, on the first page the filtering is correct, put pagination isn't working anymore. If I switch to page no. 2 ... n the filters / sortorders are lost, even if I use 'getStateHelper().get(...) , .... put(..., ..., ...)' in the bean of my own composite component
Is there a way to use this lazy loading datatable within an own composite component while the filter and sortorder maps are stored in the Bean belonging to the faces component?