bclass.addStaticListField(XWikiConstant.TAG_CLASS_PROP_TAGS, "Tags", 30, true, true, "", "input", "|,"); StaticListClass tagClass = (StaticListClass) bclass.get(XWikiConstant.TAG_CLASS_PROP_TAGS); if (tagClass.isRelationalStorage() == false) { tagClass.setRelationalStorage(true); needsUpdate = true;