code: public static Graph create(IDBAccess dbAccess) {
  		ResultHandler rh = new ResultHandler(dbAccess);
  		Graph ret = rh.getGraph();
  		ret.setSyncState(SyncState.NEW);
  		return ret;
  	}
docs: create an empty graph
  @param dbAccess the database on which to perform updates of the graph
  @return the empty graph model