Inserting an XML element into an XML doc, issue with default namespace

[Pascal Maugeri]

Hi

I've wrote the following helper method to create or replace an XML element
into an XML document (this may help others).

I notice that I must specify the default namespace into my XML element (elt
parameter below), otherwise when the element is inserted xmlbeans add a
default one with no value ?! If I add an XML element <rule> into a <ruleset>
document, I get:

<ruleset xmlns="urn:ietf:params:xml:ns:common-policy">
    <rule id="rule_1253695448_0" *xmlns=""*>
    [...]
    </rule>
</ruleset>

... and of course it does not validate against the schema.

What should I do in order to remove this value ? Or what should I do to
automatically set a default namespace to elt if it has none ?

Here's the code of my method, making use of XmlCursor.copyXml():

    public static void createReplaceElement(XmlObject doc, String namespace,
XmlObject elt, String xpathQuery) {

        int index;
        // Create a cursor and move it to the position defined by XPath
query
        XmlCursor docCursor = doc.newCursor();
        String query = "declare default element namespace '" + namespace +
"';" + xpathQuery;
        docCursor.selectPath(query);

        // If element already exists, delete it first (Replace case)
        if (docCursor.toNextSelection()) {
            docCursor.removeXml();
            // keep the cursor to insert the new element in the same place.
        }

        // Create case (element does not already exist)
        else {
            System.out.println("XmlBeansHelper: Element doesn't exist yet");
             index = xpathQuery.lastIndexOf("/");
            if (index != -1) {
                String q = xpathQuery.substring(0, index);
                query ="declare default element namespace '" + namespace +
"';" + q;
                docCursor.selectPath(query);
                if (docCursor.toNextSelection()) {
                    if (!docCursor.toFirstChild())
                        docCursor.toEndToken();
                }
                else
                    return;
            }
        }

        // Element cursor
        XmlCursor eltCursor = elt.newCursor();
        if (eltCursor.currentTokenType().isStartdoc())
            eltCursor.toNextToken();

        eltCursor.copyXml(docCursor);

        docCursor.dispose();
        eltCursor.dispose();
    }


Best Regards,
Pascal