NO_MODIFICATION_ALLOWED_ERR

[Rick Rivello <ri...@nist.gov>]

All

I am trying to write a simple program that will throw the
NO_MODIFICATION_ALLOWED_ERR DOMException.

I get the lastChild node of an element which is readonly and use
the setNodeValue() to set the value.  I think
this should throw a NO_MODIFICATION_ALLOWED_ERR
since the node is readonly.


******************************************************************************************
*********
Below is a copy of  nodetest.java, staff.xml, st.dtd and the output created.
I am running xerces-1_3_0

Thanks in advance for any help or suggestions.

Rick Rivello


Contents of nodetest.java
******************************************************************************************
*************
import org.w3c.dom.*;
import org.w3c.dom.Node;

import org.apache.xerces.parsers.*;
import org.xml.sax.InputSource;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;

import java.io.*;
import java.net.*;


public class nodetest {

public static Document doc = null;  // Initialize doc

static final short NO_MODIFICATION_ALLOWED_ERR = 7;

public static void main(String argv[]) {

    try {
       org.apache.xerces.parsers.DOMParser parser = new
org.apache.xerces.parsers.DOMParser();
       parser.setFeature("http://xml.org/sax/features/validation", true);
       parser.setFeature("http://apache.org/xml/features/dom/defer-node-expansion",
false);

parser.setFeature("http://apache.org/xml/features/dom/include-ignorable-whitespace",
true);
       parser.parse("staff.xml");
       doc =  parser.getDocument();
    }
    catch (SAXException se) {
       se.printStackTrace(System.err);
    }
    catch (IOException ioe) {
       ioe.printStackTrace(System.err);
    }

// Retrieve targeted data

   try

        NodeList elementList = doc.getElementsByTagName("employeeId");
        Node lchildNode = elementList.item(0).getLastChild();

        System.out.println(lchildNode.getNodeName());
        System.out.println(lchildNode.getNodeType());
        System.out.println(lchildNode.getNodeValue());

        try

             lchildNode.setNodeValue("newvalue");
        }
        catch(DOMException e) {
             if (e.code == NO_MODIFICATION_ALLOWED_ERR)
                System.out.println("NO_MODIFICATION_ALLOWED_ERR");
             else
                System.out.println(String.valueOf(e.code));
        }
        System.out.println(String.valueOf(lchildNode.getNodeValue()));
   }
   catch (Exception e) {
        System.out.println("ABORTED DUE TO ERROR");
   }
}
}
******************************************************************************************
*****


Contents of staff.xml
******************************************************************************************
*****

<?xml version="1.0"?><?TEST-STYLE PIDATA?>
<!DOCTYPE staff SYSTEM "st.dtd" [
   <!ENTITY ent2 "1900 Dallas Road">
]>
<!-- This is comment number 1.-->
<staff>
 <employee>
  <employeeId>EMP0001</employeeId>
  <name>Margaret Martin</name>
  <position>Accountant</position>
  <salary>56,000</salary>
  <gender>Female</gender>
  <address domestic="Yes">1230 North Ave. Dallas, Texas 98551</address>
 </employee>
</staff>
******************************************************************************************
*******


Contents of st.dtd
******************************************************************************************
*******
<!ELEMENT employeeId (#PCDATA)>
<!ELEMENT name (#PCDATA)>
<!ELEMENT position (#PCDATA)>
<!ELEMENT salary (#PCDATA)>
<!ELEMENT gender (#PCDATA)>
<!ELEMENT address (#PCDATA)>
<!ELEMENT entElement (#PCDATA)>
<!ELEMENT employee (employeeId, name, position, salary, gender, address) >
<!ELEMENT staff (employee)+>
******************************************************************************************
************
Output of running nodetest.java is:

#text
3
EMP0001
newvalue




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