code: private void genSearchString(StringBuffer searchExpBuffer, ParenthesisNode parenNode) throws WIMException {
          XPathNode child = (XPathNode) parenNode.getChild();
          genStringChild(searchExpBuffer, child);
      }
docs: /*
  (non-Javadoc)
  
  @see com.ibm.ws.wim.xpath.util.XPathTranslateHelper#genSearchString(java.lang.StringBuffer, com.ibm.ws.wim.xpath.mapping.datatype.ParenthesisNode)