Hi Mohnish,

That's what I thought/hoped it would be. Thanks for letting us know.

Regards
Werner

mohn3310 wrote:
> Hi guys,
> 
> It looks like this was an osgi specific issue. I had two bundles; one of
> which was using castor to persist objects handed to it by the other. It
> turns out the bundle using castor did not include an import of the package
> the object it was handed resided in. Adding that seemed to do the trick.
> 
> I'm still trying to figure this out exactly. Why were there no errors when
> the import was missing. It just failed silently.
> 
> Thanks for your help.
> 
> Mohnish
> 
> 
> Werner Guttmann wrote:
>> Hi Joachim,
>>
>> Joachim Grüneis wrote:
>>> Hello,
>>> I try to help you with some hints... but to be more precise
>>> I have not enough information
>>>
>>> It seams that you use the static methods of marshaller and unmarshaller -
>> But that's exactly what he user is looking for. All he wants to use is
>> introspection mode, soo usage of the static methods is just fine.
>>
>>> this often leads to problems as no configuration step takes place which
>>> e.g.
>>> would load the mapping information...
>>>
>>> so please instantiate an XMLContext, introduce the classes to map by
>>> using
>>> addClass or loadMapping, create marshaller and unmarshaller  instance and
>>> work with this instance - that might already solve your problem
>> Well, it might be still owrth it to try this, even though there's no
>> mapping information to be loaded.
>>
>>> on the other
>>> hand you might have a problem caused by class loading mechanisms of felix
>>> (OSGi)
>>> marshaling takes existing Java
>>> objects instances and serializes them into XML - no problem there, all
>>> Java classes are known and can easily be
>>> marshaled to XML without any mapping information...
>>> the other way round is more complicated
>>> Caster has to find a corresponding class for each element found in the
>>> XML
>>> and needs to be able to
>>> instantiate this class - this is where two problems might occur:
>>> 1) no matching class can be found, mapping information is not
>>> available cause static methods are used so nothing is unmarshalled
>>> 2) no matching class can be found because Castor is not allowed to
>>> access these classes because they are bound to a different class
>>> loader
>>>
>>> These are just some ideas of what might have happend...
>>>
>>> to really help it is required to know more about your implementation:
>>> Is an XSD definition existing?
>> No, I guess.
>>> Has the Java code been generated using code generator?
>> No, I guess.
>>> Have you included the .cdr files into the jar?
>> Well, no classes have been generated.
>>
>>> Do you use a mapping file?
>> No, as introspection mode is used.
>>
>>> How does the marshaling/unmarshaling code look like?
>>> Hth Joachim
>>>
>>> 2009/6/24 mohn3310 <[email protected]>
>>>
>>>> Hello,
>>>>
>>>> I'm using castor-xml in introspection mode to write out simple POJOs to
>>>> files (one POJO per file). I've written unit tests and verified that
>>>> this
>>>> works. I've also inspected the files and made sure they have appropriate
>>>> xml.
>>>>
>>>> I then packaged this up into an osgi bundle and deployed it to a
>>>> container
>>>> (felix). For some reason when I run it, it ends up creating the file but
>>>> it
>>>> is empty... i.e. no xml in the file. Yet another strange thing is that I
>>>> use
>>>> Unmarshaller.unmarshall() to convert the xml files back to their
>>>> associated
>>>> POJOs. As a test I generated the xml by hand and it was able to load it.
>>>> So
>>>> Marshaller.marshall() doesn't work, but Unmarshaller.unmarshall() does!
>>>>
>>>> Any idea why it is behaving this way? Same code... works great
>>>> "normally",
>>>> but doesn't work inside an osgi container.
>>>>
>>>> Thanks,
>>>> Mohnish
>>>> --
>>>> View this message in context:
>>>> http://www.nabble.com/castor-xml-writing-empty-file-tp24175804p24175804.html
>>>> Sent from the Castor - User mailing list archive at Nabble.com.
>>>>
>>>>
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