如何解析使用WebServices返回的XML到xQuery？

I have been struggling with this issue for a few days now and would sincerely appreciate your help . I have an Java application that queries multiple Webservices which return an XML message. My application then parses these multiple XML messages returned using xquery. Based on what i understand, xquery needs a XML document to read the XML and for my Java application creating a XML document for each Webservices XML returned would be heavy and slow down the response time. I have been struggling with this issue for a fe