[jdom-interest] (no subject)

[Crook, Charles]

If your doc is parsed in memory, you're only changing the "in-memory"
version of the file2.xml; not actually writing it back to disk...
So your output of 0 on the screen, but 400 still in the disk file would be
expected.


-----Original Message-----
From: nagarajan madhavan [mailto:nagaragan at hotmail.com]
Sent: Wednesday, June 07, 2000 12:41 PM
To: jdom-interest at jdom.org
Subject: [jdom-interest] (no subject)


Hello,

   see this code snippet;


org.jdom.input.SAXBuilder builder = new org.jdom.input.SAXBuilder();
             Document doc = builder.build(new 
File("E:\\java_classes\\file2.xml"));
              			Element element=doc.getRootElement();
			Element kid= element.getChild("rating");
			kid.setContent("0");
			   String x  =kid.getContent();
		System.out.println("value of x-- rating is" +x+"\n\n");


"file2"  is an existing xml file;

it has an attribute, by name "rating"  ( <rating>400</rating> ).

In this code we are trying to set that to Zero ( i don't know if it will be 
considered as a  string or is there a way of maintaining the actual data 
type, if any ; because actually "rating" keeps integer values).


When we use,

   XMLOutputter fmt = new XMLOutputter();
      fmt.output(doc, System.out);


The output on the console gives the value of "rating" as 0.

But when u open the actual file , "file2.xml", the value of rating is not 
changed; the old 400 only;

The question is how to modify the value of a particular attribute( element) 
in an already existing  XML files ?

Thanks in advance

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