I must admit, that this makes sense to *me*....
 

-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jordan
Laughlin
Sent: Friday, 19 August 2005 2:46 PM
To: hibernate-devel@lists.sourceforge.net
Subject: Re: [Hibernate] Configuration artifact precedence

Wouldn't it make sense for it to throw an exception if the mappings are
different, otherwise who cares? In migrating, if one makes a mistake it
would be good to know - "xxx has two different configurations" and not
pick one which has precedence (I'm coming from the standpoint of someone
who may be migrating soon). Unless, of course, the configuration
artifacts are always different between those mapped by
Annotations/ejb3xml and those mapped by hbm.xml. It would also
definately make sense if this was configurable.

I'm thinking out loud too :P

-JL

----- Original Message -----
From: "Max Rydahl Andersen" <[EMAIL PROTECTED]>
To: "Emmanuel Bernard" <[EMAIL PROTECTED]>
Cc: <hibernate-devel@lists.sourceforge.net>
Sent: Friday, August 19, 2005 5:23 AM
Subject: Re: [Hibernate] Configuration artifact precedence


>
> Yes I know the problem - and I also didn't find any hint in the spec
about
> how they plan to define the precedence with respect to ejb3 xml in 
> relation to annotations...any news on that ?
>
> And I guess having precedence as something you can change to allow for

> easier migration would be a good thing.
>
> As it is now Annotations/ejb3xml wins first - correct ?
>
> But couldn't we just say hbm.xml wins first and then users can remove
the 
> hbm.xml when they want the annotations
> to take over ? Or will that not have any affect because the annotation

> process occurs before users get the chance to
> add their hbm.xml files...
>
> Just thinking out loud...
>
> /max
>
>
>> When Christian migrate CaveatEmptor to HEM, the encounters issues
with 
>> the discovery mechanism, because there were no notion of precedence.
I 
>> think the idea of configurable precedence came from here. I have to 
>> admit I liked the idea to ease migrations. It's a bit like the BIOS
boot 
>> ordering, you never used it, until you have to.
>> The problem is that I discover them in the jar file, they are not
added 
>> by the user. So I have no idea of the ordering.
>>
>>> when will we ever have a user add both a hbm.xml AND ejb3xml file ?
>>> And if we have - again, why not just choose the first one that gets 
>>> added
>>> to the configuration by the user ?
>>>
>>> /max
>>>
>>>>>
>>>>>> Well, just to let you know and to help me to find a good 
>>>>>> configuration
>>>>>> property name.
>>>>>
>>>>>
>>>>>
>>>>> What kind of values does it take ?
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
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>>>
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>>
>
>
>
>
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