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Change node value

Posted on 2004-04-26
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Last Modified: 2012-05-04
I have a method transverseDomTree() that goes through all the nodes in a DOM tree until it finds a node called "display-name". When it finds this node I want to change the value of the node ie change it from:

<display-name>Hello</display-name>
to
<display-name>Welcome</display-name>

How do i go about this?

public static void transverseDomTree(Node start){
          Node child;
          if(start.getNodeName().equals ("display-name")){
                //change value
          }
          for(child = start.getFirstChild();child!=null;child=
               child.getNextSibling()){
               transverseDomTree(child);
          }
}
0
Comment
Question by:liamgannon
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6 Comments
 
LVL 92

Accepted Solution

by:
objects earned 400 total points
ID: 10923642
get the text child node and call setNodeValue()
0
 
LVL 7

Expert Comment

by:maheshexp
ID: 10924128
i think it should not be like this...
>>start.getNodeName().equals ("display-name"))
since what ever u traverse, the start will point to the argument what u have passed....

i think it should be like this...

if( child.getNodeName().equals ("display-name")) ){
       /* set the value of the child using the method u desginated, or directly to the field */
}
0
 
LVL 92

Expert Comment

by:objects
ID: 10924567
> if( child.getNodeName().equals ("display-name")) ){

no that will throw a NPE
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LVL 30

Expert Comment

by:Mayank S
ID: 10925408
Indeed, it would.
0
 

Author Comment

by:liamgannon
ID: 10928045
Cheers objects ;-)
0
 
LVL 92

Expert Comment

by:objects
ID: 10934405
No worries :)
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