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From Aleksander Slominski <as...@cs.indiana.edu>
Subject Re: [axis2] Writing an empty element?
Date Tue, 30 Aug 2005 09:08:14 GMT
Glen Daniels wrote:

> Anyone have a clue if there is a way to use the XMLStreamWriter to get:
>
> <elem attr="1"/>
>
> instead of:
>
> <elem attr="1"></elem>

Glen,

in short yes!  XMLStreamWriter.writeEmptyElement() should be called from 
OM (see example below).

>
> for elements with attributes but no content?

however i wonder why you care - from XML 1,0 and Infoset point of view 
thos2e two are equivalent!

>
> If not, this seems VERY BAD.

:)

alek
BTW: to bad that solutoion from XmlPull API did nto survive in StAX i.e. 
it was intelligent to do <empty/> by default unless you called 
character("") in between.

ps. short example:

package samples;

import java.io.StringWriter;
import javax.xml.stream.XMLOutputFactory;
import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;
/**
 * Requires StAX RI 1.0 (JSR 173) available at http://stax.codehaus.org/
 * @author Alek
 */
public class TestSerializer3
{
    private final static String SOAP12 =  
"http://www.w3.org/2003/05/soap-envelope";
   
    public static void doXmlOutput(boolean useRepairing) throws 
XMLStreamException {
        StringWriter buffer = new StringWriter();
        XMLOutputFactory outputFactory = XMLOutputFactory.newInstance();
        if (useRepairing) {
            
outputFactory.setProperty("javax.xml.stream.isRepairingNamespaces", 
Boolean.TRUE);
        }
        XMLStreamWriter out = outputFactory.createXMLStreamWriter(buffer);
        out.writeStartDocument();
        out.writeStartElement("env", "Envelope", SOAP12);
        out.writeNamespace("env", SOAP12);
        out.writeNamespace("test", "http://someTestUri");
        out.writeEmptyElement("env", "Body", SOAP12);
        out.writeEndElement();
        out.writeEndDocument();
        out.close();
        System.out.println("Created "+(useRepairing ? "" : "not")+" 
using repairing :-");
        System.out.println(buffer);
    }
   
    public static void main(String[] s) throws Exception {
        doXmlOutput(false);
        doXmlOutput(true);
    }
}


-- 
The best way to predict the future is to invent it - Alan Kay


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