ExObjList lst = (ExObjList) _documentRecord.findFirstOfType(RecordTypes.ExObjList.typeID);
if (lst == null) {
lst = new ExObjList();
_documentRecord.addChildAfter(lst, _documentRecord.getDocumentAtom());
}
ExObjListAtom objAtom = lst.getExObjListAtom();
// increment the object ID seed
int objectId = (int) objAtom.getObjectIDSeed() + 1;
objAtom.setObjectIDSeed(objectId);
lst.addChildAfter(exObj, objAtom);
return objectId;
}