How do I add (or insert) a node into an XML document with JSTL?

Dear all,
I am trying to use JSTL to store some data from a form into XML. However, I have read many articles in JSTL and only found that it can only be, as far as those articles are concerned, used to "read" data from XML files, but not "write" to them.
Am I missing something in JSTL? Or, if I want to write to an XML file (e.g., insert a new node, or modify a node's data), will I have to write my own bean and then use <c:usebean />?
Thanks very much in advance.
Regards,
Robert

JSTL is not a programming language in and of itself. It is intended to help you to write scriptlet free JSPs.
JSP pages (by one school of thought) are intended to function as the "View" in a Model-View-Controller architecture.
Being a view, JSP pages should be able to look at things - but not touch.
The standard pattern is to go to a servlet first, which invokes the logic, and then forwards to a JSP for rendering.
Editing XML by adding new nodes etc etc is thus a function of the java code layer - servlet/action whatever you want to call it.
Giving you the power to edit XML documents via JSTL (ie on a JSP page) takes away from purity of the MVC design.
Hence why they don't provide the tags for manipulating XML, and only provide the database tags with a disclaimer that they should only be used for prototypes/trivial apps!
JSTL is designed to replace scriptlet code on a JSP page.
It can replace 99% of scriptlet code. The other 1% shouldn't be on the JSP in the first place :-)
cheers,
evnafets

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