I am using DBXml and I cannot figure out how to specify the default
namespace for queries.

I have created a container with several XML documents like this one:

<foo xmlns="http://www.bar.org"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.bar.org foo.xsd">
<bar>
...
</bar>
<bar>
...
</bar>
</foo>

By using the dbxml utility I can succesfully perform the following
operations:

dbxml> openContainer foo.dbxml
dbxml> cquery "/foo/bar"
0 objects returned for eager expression '/foo/bar'
dbxml> setNamespace "" "http://www.bar.org"
dbxml> cquery "/foo/bar"
59042 objects returned for eager expression '/foo/bar'

So, binding the "" prefix to the "http://www.bar.org" makes
"http://www.bar.org" the default namespace and it correctly returns me
all the <bar> elements in the <foo> one.

I tried to do the same in my Java application:

XmlQueryContext xqc = xmlManager.createQueryContext();
xqc.setNamespace("", "http://www.bar.org");
XmlQueryExpression qe =
xmlManager.prepare("collection(\"foo.dbxml\")/foo/bar", xqc);
XmlResults results = qe.execute(xqc);

But it returns 0 objects in the XmlResults collection.

What's wrong with this?
Why don't I get the 59402 objects dbxml correctly finds?

Thank you for your help.

Hi,

You cannot set a default namespace using setNamespace(). You could try
passing the namespace in the query expression. Try something similar
to:

xmlManager.prepare('declare default element namespace
"http://www.bar.org"; collection(\"foo.dbxml\")/foo/bar"', xqc);


Ron

Ron ha scritto:

It works.