Do we have any way to update or change the value of of a DOMTREE in the memory using xpath and Xalan libiary ?

[Liu, Richard]

Hi, 

  I have a general question in terms of xpath ability.

  I know we can extract (get) the specific value of a node using xPath query.

  However, our application needs to have the ability to change or update the 
value of certain nodes, I have no idea if we can do it?
  If using xPath and Xalan library can not do it, do we have any other tools 
that may support this ability ?


Thanks

Richard Liu
Software Engineer at Boeing