Re: Using XERCES with XPath support

[Reuven Nisser]

Hello, The problem is that I am using the document for multiple finds and multiple changes all the time. If I will need to re-wrap after each change, the performance will be terrible. Maybe the solution will be to stay with MS-XML4 and write a wrapper for xml-security? What do you think? Thanks, Reuven Berin Lautenbach wrote: Yes - if you want XPath you need to use the Xalan library. The Xalan DOM cab be a wrapper around the Xerces DOM - which means you can use XPath to find what you want in the DOM and then map the Xalan node back to a Xerces node that allows you to then change the DOM. (At that point you need to re-wrap the Xalan DOM, but generally it's passed its use by then anyway). There are some examples in the Xalan site, and there is some code in the xml-security library that calls on Xalan for some of the transformations that might provide some pointers as well. Have a look at the txfmxpath.cpp file. Cheers, Berin Reuven Nisser wrote: Hello, I have an application relying heavily on XML. I am currently using MS-XML4. The application imports, builds, changes and exports XML documents and uses XPATH to find notes. The main reason for switching to XERCES is using Apache XML Security later. I am trying to migrate the application, I started with XERCES and then found out it has no XPATH support. I continued with XALAN but it does not allow to change the XML and if I use a wrapper I will need to rebuild it after each XML change. Do, where do I go from here? Is it possible to use Apache XML Security with other XML libraries? Especially with MS-XML 4? Thanks, Reuven Nisser