code: protected void addSearchSetting(CmsXmlContentDefinition contentDefinition, String elementName, Boolean value)
      throws CmsXmlException {
  
          if (contentDefinition.getSchemaType(elementName) == null) {
              throw new CmsXmlException(
                  Messages.get().container(Messages.ERR_XMLCONTENT_INVALID_ELEM_SEARCHSETTINGS_1, elementName));
          }
          // store the search exclusion as defined
          m_searchSettings.put(elementName, value);
      }
docs: Adds a search setting for an element.<p>
  
  @param contentDefinition the XML content definition this XML content handler belongs to
  @param elementName the element name to map
  @param value the search setting value to store
  
  @throws CmsXmlException in case an unknown element name is used