My problem is that I want to take the control of the grouping of data in ExtendedDataTables (the default grouping is not suitable for data came from DataBase). In another post some friend suggested that It is possible to do this by extending DataModel, so I've searched source code of UIExtendedDataTable and other related components like UIDataTable, but I have not been able to find the code where grouping takes place. Does someone know where - in source java codes - the grouping of data has been implemented.
I, also have another question (less important). It seems that some java files do not exist in source of richfaces, i.e. HtmlExtendedDataTable.java. I guess that these files are created dynamically or something like it. Is it true?