Re: AW: [Objectbridge-jdo-dev] jdo extension

[Thomas M. <tho...@ho...>]

Hi Andy,

Andy Lewis wrote:

> The key point about the JDO file is that it is specified by the standard.


Right, but JDO does not require us to *rely* on a JDO file. It would be 
100% JDO compliant to simply generate a plain *.jdo file without any 
vendor extensions and to keep the O/R mapping info in a separate place. 
(As I suggested originally).



> If they didn't specify it, that would be different....


If JDO specified how to keep O/R info in a *.jdo file this discussion 
wouldn't have occured...

cheers,

Thomas


> 
> 
>>Hi Christian,
>>
>>Christian Sell wrote:
>>
>><snip>
>>
>>>I disagree. A database is a resource that must not be taken
>>>lightly, as it has the strongest performance implications if
>>>treated wrongly. Luring people into the illusion that they
>>>can do away with it by the push of a button has the potential
>>>of generating disappointments.
>>>IMO, a good O/R framework must either exploit or allow easy
>>>access to the full capabilities of the underlying DBMS. And
>>>in a corporate production scenario, you will almost always
>>>have to map your objects to a pre-existing schema.
>>>
>>>
>>
>>I absolutely agree with you!
>>
>>That's why I was so sceptic about the *.JDO idea.
>>
>>That's why I said: the OJB DescriptorRepository must be the guide line!
>>But if we can have all necessary information in a *.jdo file I see no
>>problems in generating the DescriptorRepository from it.
>>
>>cheers,
>>
>>
>>Thomas
>>
>>
>>
>>_______________________________________________________________
>>
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> 
> 
> "The heights of genius are only measurable by the depths of stupidity."
> 
> 
> 
> _______________________________________________________________
> 
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> August 25-28 in Las Vegas -- http://devcon.sprintpcs.com/adp/index.cfm
> 
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