topic Re: Using XPath with the XML DOM in Application Development and Automation Discussions

Using XPath with the XML DOM

Former Member — Wed, 05 Nov 2008 10:59:29 GMT

I have just started to use the XML DOM API. One thing I cannot see yet is an easy way to use XPath to get the value of an element.

What I would like to do is pass an XPath expression like this:

\EDIFACT\ORDERS\NAD[2]\NAD01\NAD0102

into a method, and get the value of the element returned to me.

Does anybody know if there is a method of one of the DOM interfaces that would provide that kind of functionality, or am I going to have to traverse the nodes of the DOM tree manually to do this?

BR,

Tony.

Re: Using XPath with the XML DOM

Former Member — Fri, 21 Nov 2008 14:59:53 GMT

Hi Tony,

I read your posted question - I have the same problem.

I think that the method find_from_path_ns (or find_from_path) is the only "xpath"-like way to get a value.

BUT the syntax is very limited so you cannot use all good features of xpath

To traverse the nodes manually is (in my problem) unpractible - the xml-structures are different and it's horrible to traverse the tree.

I need xpaths like ' //x/y[3]/z[a='MS']' . I know, the performance is not very good but for small XML-messages fast enough

Do you have any solutions?

regards

Wolfgang Hummel

Re: Using XPath with the XML DOM

Former Member — Fri, 21 Nov 2008 15:14:55 GMT

Hi,

Yes, I do have a solution, but I had to write my own code to do it. It works for me, but may not give you all the functionality that you want.

I want to post the result in a blog that I am trying to create withing the next week. I'll post a link here when it is done. The source code will be included.

BR,

Tony.

Re: Using XPath with the XML DOM

Former Member — Fri, 27 Dec 2013 11:46:47 GMT

Hi,

do you know if SAP improve the path specification. I would like to read XML nodes with path like Document/CstmrPmtStsRpt/OrgnlPmtInfAndSts[n] with function FIND_FROM_PATH and for the momento is imposible.

BR,

María