Default namespace problem

, ,
1

Hi all,
I’m working with Tamino 4.1.4.1, I’m migrating from 3.1.2.1 and I have a problem with default namespaces in my doctype.

Here is a sample of schema:
<xs:schema xmlns:tsd = “http://namespaces.softwareag.com/tamino/TaminoSchemaDefinition” xmlns:xs = “XML Schema”>
xs:annotation
xs:appinfo
<tsd:schemaInfo name = “base”>
<tsd:collection name = “base”></tsd:collection>
<tsd:doctype name = “base”>
tsd:logical
tsd:contentclosed</tsd:content>
</tsd:logical>
</tsd:doctype>
</tsd:schemaInfo>
</xs:appinfo>
</xs:annotation>
<xs:element name = “base”>
xs:complexType
<xs:choice minOccurs = “0” maxOccurs = “unbounded”>
<xs:element name = “first” type = “xs:string”></xs:element>
<xs:element name = “second” type = “xs:string”></xs:element>
<xs:element name = “third” type = “xs:string”></xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>

and here is a sample of xml instance


ciao
hello
bye


The problem rises when I try to insert the xml instance in Tamino, if I remove the default namespace declaration all works good, if I leave xmlns as is in the example Tamino return a 7935 error.

Any ideas?
Thanks a lot,

GabriXML

2

Did you validate the schema and the instance? I tried http://apps.gotdotnet.com/xmltools/xsdvalidator/ and received an error message about the namespaces. Maybe the validator really checks the URL for validation???

3

Hello there!

The error INOXDE7935 indicates that the referenced schema does not exist.

Given that the insert works without the namespace, I would say that the problem is in the schema: the default namespace definition is probably missing.

I hope that helps,
Trevor.

4

Your schema describes an element with local name “base” in the null namespace, whereas your instance document has an element with local name “base” in the namespace “http://www.myurl.com/namespaces”. There’s no connection between these two names - names in one namespace are quite unrelated to names in a different namespace.

Michael Kay

5

Thanks everybody a lot,
now I understood, the schema doesn’t declare default namespace.
I tried to modify it and I got this:

<xs:schema targetNamespace = “http://www.myurl.com/namespaces” xmlns = “http://www.myurl.com/namespaces” xmlns:tsd = “http://namespaces.softwareag.com/tamino/TaminoSchemaDefinition” xmlns:xs = “XML Schema”>
xs:annotation
xs:appinfo
<tsd:schemaInfo name = “base”>
<tsd:collection name = “base”></tsd:collection>
<tsd:doctype name = “base”>
tsd:logical
tsd:contentopen</tsd:content>
</tsd:logical>
</tsd:doctype>
</tsd:schemaInfo>
</xs:appinfo>
</xs:annotation>
<xs:element name = “base”>
xs:complexType
<xs:choice minOccurs = “0” maxOccurs = “unbounded”>
<xs:element name = “first” type = “xs:string”></xs:element>
<xs:element name = “second” type = “xs:string”></xs:element>
<xs:element name = “third” type = “xs:string”></xs:element>
</xs:choice>
</xs:complexType>
</xs:element>
</xs:schema>

Now I haven’t error on insert, base instance is correctly stored on Tamino. But when I try to retrieve base element I get no result, I try using x-query “base”.
If I try x-query “*” I get all “base” element stored.
Maybe I’m a bit confused about namespaces, can you explain me this Tamino behaviour?

Thanks again,
Gx

6

Hello Gx,

I think that Michael’s previous explanation covers this situation too.
If the documents have elements whose names are qualified with a namespace, you need to specify that namespace in the query to retrieve them.

(If you use the unqualified name “base” in a query, you are implicitly referring to the “base” in the null namespace - but in this case you need to refer to the “base” that is in the “http://www.myurl.com/namespaces” namespace.)

I think that the easiest way to do this will be to add a namespace prefix definition to your schema (something like xmlns:gxl=“http://www.myurl.com/namespaces” for example), then use the defined prefix in the query (i.e. “/gxl:base”).

I hope that helps,
Trevor.

7

Ciao GabriXml
using your second schema you can query your document with following queries:

XQuery:

let $a := input()/*[local-name(.) = "base"]
return $a 
</pre><BR><BR><B>X-Query</B><BR><BR><pre class="ip-ubbcode-code-pre"> 
/*[local-name(.) = "base"]



I hope this can help.
Regards
Lorenzo