Converting ResultSet to XML by OracleXMLQuery

Question

Hello,
I'm newbie in XML and I have following problem:
I'm using OracleXMLQuery to convert ResultSet from oracle db to XML document. I'm using getXMLDOM()(from oracle package) to convert this OracleXMLQuery into DOM representation. I can extract node names but all values of the nodes are null's (if I convert the document to string and put it on the screen, the values are connect). Here's my code:
QracleXMLQuery qry;
ResultSet rset = (ResultSet)stmt.getObject(1);
qry = new OracleXMLQuery(conn,rset);
      qry.setRaiseNoRowsException(true);
      qry.setRaiseException(true);
      qry.keepObjectOpen(true);
      qry.useNullAttributeIndicator(true);
Document d=(Document)qry.getXMLDOM();
        //---to this point all seems to be correct
        // -OracleXMLQuery object stores correct xml document and
        // qry.getXMLDOM() return good Document object
  NodeList nl=d.getElementsByTagName("some_tag_name");
  for(int i=0;i<nl.getLength();i++){
       Node temp=nl.item(i);
       System.out.println(temp.getNodeValue()); //null's
       System.out.println(temp.getNodeName()); //correct name of the string
       }Maybe i'm missing something, as I wrote earlier I'm newbie in XML - I would be very grateful for any help. Thanks in advance!

Answer 1

Thanks for your reply - it really helped. I have another problem,maybe some of you may help me: I have two DOM documents and I want to join then like this
Documant a:
<?xml version = '1.0'?>
<ROWSET>
     <ROW num="1">
        <attr1>sometext1</attr1>
        <attr2>sometext2</attr2>
        <attr3>sometext3</attr3>
     </ROW>
     <ROW num="2">    
     </ROW>
     <ROW num="3">
     </ROW>
</ROWSET>Doc b
<?xml version = '1.0'?>
<attrib>
  <ROW num="1">
     <atr1>sometext1</atr1>
     <text>othertext1</text>
  </ROW>  
  <ROW num="2">
     <atr2>sometext2</atr2>
     <text>othertext1</text>
  </ROW>
  <ROW num="3">
     <atr3>sometext3</atr3>
     <text>othertext1</text>
   </ROW>
</attrib>Now I want to insert the whole <attrib>...</attrib> section from document b as a node to document a in for example <ROW num="1">...</ROW> section. I've tried to create Node element form document b (<attrib></attrib>) and use insertBefore() method on Node <ROW num="1"></ROW> but I have a nullpointer exception - well it probably wasn't good idea.I hope my description is clear, I vould be happy for any advice. Thanks in advance