int colon = set.indexOf(':');
    private DSpaceObject resolveSet(Context context, String set)        throws SQLException    {        if (set == null)        {            return null;        }                // We can be fairly simple because of our two-level hierarchy.        // Set spec is community-id[:collection-id]        int colon = set.indexOf(':');        if (colon >= 0)        {            // We have community & collection IDs            int collID = Integer.parseInt(set.substring(colon + 1));                        return Collection.find(context, collID);        }        else        {            // Just a community ID            return Community.find(context, Integer.parseInt(set));        }    }