in alot of example,I saw stateless session bean return table retrieveing result using collection,the collection is base on a class which defined by programmer.
			

			then,for each diffrent table,has to define diffrent class,once table structure changed,class need tobe change.
			

			why not just use rowset,or in weblogic use resultset,in sybase use TabularResults
			

			is the portable between servers the only issue to avoid result set,or there are some others consideration?