Static function class which parses a Document such as that contained in
a PersonDirs.xml file to obtain a List of PersonDirInfo objects.
version: $Revision: 35676 $ $Date: 2005-04-26 09:34:30 -0700 (Tue, 26 Apr 2005) $ since: uPortal 2.5
Computes a List of PersonDirInfo objects from a Document.
Parameters: personDirDoc - PersonDirInfo document a List of PersonDirInfo objects throws: IllegalArgumentException - if param personDirDoc is null throws: DataAccessException - on failure