* @param boost The boost factor to apply to the query
     * @return The converted OpenSearch QueryBuilder
     */
    protected QueryBuilder convertWildcardQuery(final QueryContext context, final WildcardQuery wildcardQuery, final float boost) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

        assertEquals("_default:fess", ((PrefixQuery) query).getPrefix().toString());

        query = queryParser.createDefaultFilterChain().parse("fe?s");
        assertEquals(WildcardQuery.class, query.getClass());
        assertEquals("_default:fe?s", ((WildcardQuery) query).getTerm().toString());

        query = queryParser.createDefaultFilterChain().parse("fess~");
        assertEquals(FuzzyQuery.class, query.getClass());