Partial unmarshal question

Question

I have used the JAXB partial-unmarshal example to create my own code base for a >2gig XML file. Things are working well but I don't understand the issue of namespaceURI. Specifically, the XML file I am parsing contains namespace tags in its primary element:
<uniprot xmlns="http://uniprot.org/uniprot"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://uniprot.org/uniprot http://www.uniprot.org/support/docs/uniprot.xsd">
(note that I am binding via my customized schema, not the one listed in the tag)
Due to the presence of these attributes, the conditional in the startElement method of my "splitter.java" file (copied directly from the partial-unmarshal example) never evaluates to true and therefore unmarshalling doesn't occur -
public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
throws SAXException {
if( namespaceURI.equals("") && localName.equals("entry") ) {
Unmarshaller unmarshaller;
try {
unmarshaller = context.createUnmarshaller();
unmarshaller.setValidating(false);
} catch( JAXBException e ) {
throw new SAXException(e);
If I remove the namespace attributes from the <uniprot> tag in the XML file data binding works perfectly. I'd rather not have to remove these attributes on every release of this file so how can I deal with it programmatically? If I simply say,
namespaceURI=""
prior to the conditional the data binding fails.
I guess the problem is that I don't fully understand the problem.
any help would be appreciated
btw - per the instructions, I have set factory.setNamespaceAware(true). Setting this to "false" doesn't fix the problem.
thanks
John

Answer 1

I have used the JAXB partial-unmarshal example to create my own code base for a >2gig XML file. Things are working well but I don't understand the issue of namespaceURI. Specifically, the XML file I am parsing contains namespace tags in its primary element:
<uniprot xmlns="http://uniprot.org/uniprot"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://uniprot.org/uniprot http://www.uniprot.org/support/docs/uniprot.xsd">
(note that I am binding via my customized schema, not the one listed in the tag)
Due to the presence of these attributes, the conditional in the startElement method of my "splitter.java" file (copied directly from the partial-unmarshal example) never evaluates to true and therefore unmarshalling doesn't occur -
public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
throws SAXException {
if( namespaceURI.equals("") && localName.equals("entry") ) {
Unmarshaller unmarshaller;
try {
unmarshaller = context.createUnmarshaller();
unmarshaller.setValidating(false);
} catch( JAXBException e ) {
throw new SAXException(e);
If I remove the namespace attributes from the <uniprot> tag in the XML file data binding works perfectly. I'd rather not have to remove these attributes on every release of this file so how can I deal with it programmatically? If I simply say,
namespaceURI=""
prior to the conditional the data binding fails.
I guess the problem is that I don't fully understand the problem.
any help would be appreciated
btw - per the instructions, I have set factory.setNamespaceAware(true). Setting this to "false" doesn't fix the problem.
thanks
John