if( feature.equals( CategoryNamespace.NAME ) ) {
obj = new CategoryNamespace();
} else if( feature.equals( RecurrenceConstructor.NAME ) ) {
obj = new RecurrenceConstructor();
} else if( feature.equals( ReminderConstructor.NAME ) ) {
obj = new ReminderConstructor();
} else if( feature.equals( AttendeeConstructor.NAME ) ) {
obj = new AttendeeConstructor();
} else if( feature.equals( AppointmentConstructor.NAME ) ) {
obj = new AppointmentConstructor();
} else if( feature.equals( AddressConstructor.NAME ) ) {