Adding an XMLDocument as a child to another Element

Hello everyone,
I am trying to add an XMLDocument as a child to an existing
element. Here's an example:
import org.w3c.dom.*;
import java.util.*;
import java.io.*;
import java.net.*;
import oracle.xml.parser.v2.*;
public class ggg {
public static void main (String [] args) throws Exception
new ggg().doWork();
public void doWork() throws Exception {
XMLDocument doc1 = new XMLDocument();
Element root1=doc1.createElement("root1");
XMLDocument doc2= new XMLDocument();
Element root2=doc2.createElement("root2");
root1.appendChild(root2);
doc1.print(System.out);
This reports:
D:\Temp\Oracle\sample>c:\jdk1.2.2\bin\javac -classpath
D:\Temp\Oracle\lib\xmlpar
serv2.jar;. ggg.java
D:\Temp\Oracle\sample>c:\jdk1.2.2\bin\java -classpath
D:\Temp\Oracle\lib\xmlpars
erv2.jar;. ggg
Exception in thread "main" java.lang.NullPointerException
at
oracle.xml.parser.v2.XMLDOMException.<init>(XMLDOMException.java:
67)
at
oracle.xml.parser.v2.XMLNode.checkDocument(XMLNode.java:919)
at oracle.xml.parser.v2.XMLNode.appendChild(XMLNode.java,
Compiled Code)
at
oracle.xml.parser.v2.XMLNode.appendChild(XMLNode.java:494)
at ggg.doWork(ggg.java:20)
at ggg.main(ggg.java:12)
Ideas?
Razvan
null

Paul FitzPatrick (guest) wrote:
: Oracle XML Team wrote:
: : Razvan Dragomirescu (guest) wrote:
: : : Hello everyone,
: : : I am trying to add an XMLDocument as a child to an existing
: : : element. Here's an example:
: : : import org.w3c.dom.*;
: : : import java.util.*;
: : : import java.io.*;
: : : import java.net.*;
: : : import oracle.xml.parser.v2.*;
: : : public class ggg {
: : : public static void main (String [] args) throws
: : Exception
: : : new ggg().doWork();
: : : public void doWork() throws Exception {
: : : XMLDocument doc1 = new XMLDocument();
: : : Element root1=doc1.createElement("root1");
: : : XMLDocument doc2= new XMLDocument();
: : : Element root2=doc2.createElement("root2");
: : : root1.appendChild(root2);
: : : doc1.print(System.out);
: : : This reports:
: : : D:\Temp\Oracle\sample>c:\jdk1.2.2\bin\javac -classpath
: : : D:\Temp\Oracle\lib\xmlpar
: : : serv2.jar;. ggg.java
: : : D:\Temp\Oracle\sample>c:\jdk1.2.2\bin\java -classpath
: : : D:\Temp\Oracle\lib\xmlpars
: : : erv2.jar;. ggg
: : : Exception in thread "main" java.lang.NullPointerException
: : : at
: : : oracle.xml.parser.v2.XMLDOMException.<init>
: : (XMLDOMException.java:
: : : 67)
: : : at
oracle.xml.parser.v2.XMLNode.checkDocument(XMLNode.java:919)
: : : at oracle.xml.parser.v2.XMLNode.appendChild
: : (XMLNode.java,
: : : Compiled Code)
: : : at
: : : oracle.xml.parser.v2.XMLNode.appendChild(XMLNode.java:494)
: : : at ggg.doWork(ggg.java:20)
: : : at ggg.main(ggg.java:12)
: : : Ideas?
: : : Razvan
: : You need to use the DocumentFragment class to do this as a
: : document cannot have more than one root.
: : Oracle XML Team
: : http://technet.oracle.com
: : Oracle Technology Network
: Actually, isn't this specifically a problem with appending a
node
: created in another document, since all nodes contain a
reference
: to the document they are created in? While DocumentFragment
: solves this, it isn't a more than one root problem, is it?
BTW,
: is there a quick/easy way to convert com.w3c.dom.Document to
: com.w3c.dom.DocumentFragment?
Oops, make that org.w3c . . .
null

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