Re: [bdbxml] How update metadata with XmlModify

Hi Marcin,

You cannot modify meta data using XmlModify, only document content. You 
should use the XmlDocument::setMetaData() method to modify a document's 
metadata.

If you want to perform this modification at the same time as a 
modification of the document content, you can do this in one of two ways:

1) Modify the metadata first, the use XmlModify to modify the content.
2) Set XmlUpdateContext::setApplyChangesToContainers() to false, use 
XmlModify to change the content, XmlDocument::setMetaData() to change 
the meta data, and then manually call XmlContainer::updateDocument() 
with the modified XmlDocument.

I hope this helps,

John

Marcin Kuthan wrote:
> Hi All
> 
> My application modifies some part of document with XmlModify. 
> 
> Fragment of application code:
> 
> //
> XmlQueryExpression expr1 = manager.prepare("query1", qContext);
> XmlQueryExpression expr2 = manager.prepare("query2", qContext);
> 
> xmlModify.addAppendStep(expr1, XmlModify.Element, "new1", content1);
> xmlModify.addAppendStep(expr2, XmlModify.Element, "new2", content2);
> 
> XmlDocument document = container.getDocument(documentId);
> XmlValue value = new XmlValue(document);
> 
> xmlModify.execute(value, qContext, uContext);
> //
> 
> How should I update metadata with modified document? 
> 
> 1. Add updateStep to xmlModify. But how to design selection query for
> metadata attribute?
> 2. Call setMetaData on document. But after or before execute of
> xmlModify, and when call updateDocument on xmlContainer?
> 
> 
> Any help would be appreciated.
> 
> 
> 
> ------------------------------------------
> To remove yourself from this list, send an
> email to [email protected]
> 


-- 
John Snelson, Berkeley DB XML Engineer
Sleepycat Software, Inc
http://www.sleepycat.com

Contracted to Sleepycat through Parthenon Computing Ltd
http://blog.parthcomp.com/dbxml


------------------------------------------
To remove yourself from this list, send an
email to [email protected]