In this example, demonstrated Java mapping to concatenate first name and last name to full name using DOM.Source XML: Target XML: JAVA mapping class:
JAVA Mapping One-to-One Source-to-Target using SAX
Similar purpose like previous post, this post is using SAX parser in stead.To understand know more about SAX parser, see this https://www.google.com/?q=sax+parser
JAVA Mapping One-to-One Source-to-Target using DOM
To get started to develop JAVA mapping in SAP NWDS, go to this excellent post by RaghuBelow PI java mapping parse source xml file into DOM, then output the same DOM to target xml. Very basic just to show and