myPrefetchingRelationshipKeyPaths = new PropertyListSet();
myPrefetchingRelationshipKeyPaths = new TreeSet();
  public EOFetchSpecification(String _name) {    myName = _name;    myClass = "EOFetchSpecification";    mySortOrderings = new LinkedList();    myFetchSpecMap = new EOModelMap();    myPrefetchingRelationshipKeyPaths = new PropertyListSet();  }