*/
    public void init(Element config, QueryHandlerContext context, NamespaceMappings nsMappings) throws Exception {
        ism = context.getItemStateManager();
        hmgr = new HierarchyManagerImpl(context.getRootId(), ism);
        NamespaceResolver nsResolver = new AdditionalNamespaceResolver(getNamespaces(config));
        resolver = new ParsingNameResolver(NameFactoryImpl.getInstance(), nsResolver);
        NodeTypeRegistry ntReg = context.getNodeTypeRegistry();
        Name[] ntNames = ntReg.getRegisteredNodeTypes();
        List idxAggregates = new ArrayList();