private void handleSummaryStoreComponent(Element spec, Tuning.SearchNode.Summary.Store.Component c) {
         for (Element e : XML.getChildren(spec)) {
            if (equals("maxsize", e)) {
                c.maxSize = asLong(e);
            } else if (equals("maxsize-percent", e)) {
                c.maxSizePercent = asDouble(e);
            } else if (equals("initialentries", e)) {
                c.initialEntries = asLong(e);
            } else if (equals("compression", e)) {
                c.compression = new Tuning.SearchNode.Summary.Store.Compression();
                handleSummaryStoreCompression(e, c.compression);
            }
        }
    }
Builder for the tuning config for a search cluster.

@author geirst
config-model/src/main/java/com/yahoo/vespa/model/builder/xml/dom/DomSearchTuningBuilder.java