Slow XPath evaluations in AS Java NW 7.1X

[siarhei_pisarenka3]

Hi Gurus

The slowest operations in our Java application running on NW 7.1X are XPath evaluations. We are using Java XPath processing API from JRE 1.5. Internally they are constantly performing search/initialization for Apache XPath processing factory and it takes much time. I'm talking about javax.xml.xpath.* API.

Do you know how to speed up the XPath evaluations? Is this the right forum for such questions?

Thanks and Regards,

Sergei

[Former Member]

Hi,

In general, XPath performance depends on many tasks like Database management,

query processing,algorithym analysis,design and memory.

http://wam.inrialpes.fr/publications/2004/toward-xpath-efficiency.pdf

http://java.sun.com/j2se/1.5.0/docs/api/javax/xml/xpath/package-summary.html

SAP point of view, below note might give you some idea;

Note 787484 - Incorrect condition evaluation for content-based routing

regards

nag