});
        }

        protected CollapseBuilder getCollapseBuilder(final FessConfig fessConfig) {
            final InnerHitBuilder innerHitBuilder = new InnerHitBuilder().setName(fessConfig.getQueryCollapseInnerHitsName())
                    .setSize(fessConfig.getQueryCollapseInnerHitsSizeAsInteger());
            fessConfig.getQueryCollapseInnerHitsSortBuilders()