return (Collection) context.retrieve(arg1);
Collection c = (Collection) context.retrieve(arg1); iQuery.initialize(c); return c;
    public Collection retrieveCollection(IObject arg0, String arg1, Map arg2)    {        IObject context = (IObject) iQuery.getById(arg0.getClass(),arg0.getId());        return (Collection) context.retrieve(arg1); // FIXME not type.o.null safe    }