[xquery-talk] Namespace conflict ?

[Michael Kay]

> Christian, thank you for your lines. 
> 
>> This is different in the second case. The specification [1] says that
>> "If the namespace binding of $QName conflicts with any namespace
>> binding in the namespaces property of $target, a dynamic error is
>> raised [err:XUDY0023].". This is why an error is raised if a namespace
>> already exists.
> 
> When I prefix the new name, it works, even though the namespace binding is the same. 

A namespace binding is a (prefix, uri) pair, so when you prefix the name there is a new (prefix, uri) pair which doesn't confllct with any existing (prefix, uri) pair. Does that clarify?

Michael Kay
Saxonica

> 
> declare namespace gym='http://www.mygym.com';
> 
> let $i:=(doc("FitnessCenter.xml")//gym:Name)[1]
> 
> return rename node $i as QName('http://www.gym.com', “gym:Name")
> with
> <?xml version="1.0" encoding="UTF-8"?>
> 
> <FitnessCenter xmlns="http://www.mygym.com">
>  <Member Level="platinum">
>      <Name>Jeff</Name>
>      <FavoriteColor>lightgrey</FavoriteColor>
>  </Member>
> </FitnessCenter>
> 
> I cannot see the namespace conflict.
> Thanks anyway
> Always
> Leo
> 
> 
> 
> 
>> 
>> Hope this helps,
>> Christian
>> 
>> [1] http://www.w3.org/TR/xquery-update-10/#id-rename
>> 
>> 
>> 
>>>> The problem is that your original document
>>>> uses the default namespace "http://www.mygym.com", and your query uses
>>>> "http://www.gym.com". In other words, the error is raised because the
>>>> namespace binding of your target name conflicts with the existing
>>>> namespace binding.
>>> 
>>> That I don't get.
>>> 
>>> This works
>>> let $i:=(doc("FitnessCenter.xml")//Name)[1]
>>> 
>>> return rename node $i as QName('http://www.gym.com', "Name")
>>> with
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> 
>>> <FitnessCenter>
>>>  <Member Level="platinum">
>>>      <Name>Jeff</Name>
>>>      <FavoriteColor>lightgrey</FavoriteColor>
>>>  </Member>
>>> </FitnessCenter>
>>> 
>>> This not
>>> 
>>> declare namespace gym='http://www.mygym.com';
>>> 
>>> let $i:=(doc("FitnessCenter.xml")//gym:Name)[1]
>>> 
>>> return rename node $i as QName('http://www.gym.com', "Name")
>>> with
>>> <?xml version="1.0" encoding="UTF-8"?>
>>> 
>>> <FitnessCenter xmlns="http://www.mygym.com">
>>>  <Member Level="platinum">
>>>      <Name>Jeff</Name>
>>>      <FavoriteColor>lightgrey</FavoriteColor>
>>>  </Member>
>>> </FitnessCenter>
>>> 
>>> 
>>> 
>>> Why should that conflict?
>>> Always
>>> Leo
>>> 
>>> 
>>> 
>>> 
>>>> 
>>>> Here is a recursive approach to change the default namespace of a document:
>>>> ______________________________________
>>>> 
>>>> declare function local:update($root as node(), $ns as xs:string) {
>>>> if($root instance of element()) then (
>>>> element { QName($ns, local-name($root)) } {
>>>>   $root/@*,
>>>>   for $node in $root/node()
>>>>   return local:update($node, $ns)
>>>> }
>>>> ) else (
>>>> $root
>>>> )
>>>> };
>>>> 
>>>> let $ns := 'http://www.gym.com'
>>>> let $root := doc("FitnessCenter.xml")/*
>>>> let $updated := local:update($root, $ns)
>>>> return replace node $root with $updated
>>>> ______________________________________
>>>> 
>>>> Hope this helps,
>>>> Christian
>>>> 
>>>> 
>>>> 
>>>> On Tue, Sep 16, 2014 at 12:10 PM, Leo Studer <leo.studer at varioweb.ch> wrote:
>>>>> Hello
>>>>> 
>>>>> I use the following query with Saxon-EE xQuery 9.5.1.5 in Oxygen.
>>>>> 
>>>>> for $i in doc('FitnessCenter.xml')//*
>>>>>     return rename node $i as QName('http://www.gym.com', local-name($i))
>>>>> 
>>>>> 
>>>>> on the following file:
>>>>> 
>>>>> <?xml version="1.0" encoding="UTF-8"?>
>>>>> <FitnessCenter xmlns="http://www.mygym.com">
>>>>>     <Member Level="platinum">
>>>>>             <Name>Jeff</Name>
>>>>>             <FavoriteColor>lightgrey</FavoriteColor>
>>>>>     </Member>
>>>>>     <Member Level="gold">
>>>>>             <Name>David</Name>
>>>>>             <FavoriteColor>lightblue</FavoriteColor>
>>>>>     </Member>
>>>>> </FitnessCenter>
>>>>> 
>>>>> and get the following error: new name conflicts with existing namespace binding
>>>>> 
>>>>> 
>>>>> I thought the function local-name() produces an output  without namespace binding? Can anyone explain?
>>>>> 
>>>>> Thanks in advance
>>>>> Leo
>>>>> 
>>>>> 
>>>>> _______________________________________________
>>>>> talk at x-query.com
>>>>> http://x-query.com/mailman/listinfo/talk
>>> 
>>> 
>>> _______________________________________________
>>> talk at x-query.com
>>> http://x-query.com/mailman/listinfo/talk
> 
> 
> _______________________________________________
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> http://x-query.com/mailman/listinfo/talk