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From Christopher Lenz <>
Subject Re: DynamicConfigurator namespace problem
Date Thu, 11 Dec 2003 13:52:20 GMT
Am 11.12.2003 um 13:44 schrieb Peter Reilly:
> Christopher Lenz wrote:
>> Hi all,
>> in the light of a final release of 1.6 next week, I think the 
>> DynamicConfigurator issue with namespaces needs to be resolved. I 
>> can't believe I'm the only one who has a problem with the current 
>> implementation, which concatenates the namespace URI and the local 
>> name of the element to pass it into 
>> DynamicConfigurator#createDynamicElement. This is a change that 
>> breaks backwards compatibility because the semantics of the method is 
>> changed.
> The problem is that no matter what is done backwards compatibility 
> will be broken.
> Some people use the name to call Project#createTask() and 
> Project#createDataType() to create a
> type. The name passed matches this usage. Also, as noted below, the 
> new XMLFragment

Thanks, Peter, that was the missing piece. I think it's somewhat 
unfortunate that this namespace+localname concatenation is something 
happening throughout Ant, maybe providing additional namespace-enabled 
methods in Project would have been better. Calls to 
Project#createTask(name) would lookup the task in a global table, while 
calls to Project#createTask(namespace, name) would lookup the task in a 
namespace-partitioned table. Has this option been evaluated?

I'm a bit upset that we'll probably have to add a section to the Cactus 
FAQ about why the Ant tasks provided with Cactus 1.5 don't work when 
they're typedef'd into a namespace in Ant 1.6.

> type. The name passed matches this usage. Also, as noted below, the 
> new XMLFragment
> can
> use this information as well.

But note that the information is not enough to build a real DOM 
fragment, because it is missing the prefixes.

Christopher Lenz
/=/ cmlenz at

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