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

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

Hi again,

tr...@th... wrote:

<snip>
> 
>>Any ideas about default naming conventions?
>>
> 
> Do you mean default name mapping from java field to table column?  If so, I would say identical to the java field name.
> 
> ex: 
> quantity -> quantity
> productGroup -> productGroup
> 
> Same for class names to tables.


ACK.

But what about the primary key attributes, foreign key attributes etc.

For marking primary key fields we can use the "primary-key" attribute of 
the <field>-element. So far

But for building ReferenceDescriptors and CollectionDescriptors OJB must 
know which fields of a persistent class serve as foreign key for the 
reference or collection field.

if a ProductGroup (with primary key field "id") has a Vector of Articles 
in an attribute "allArticles", each Article needs a field 
"fkProductGroup" that contains the foreign key pointing to the primary 
key "id" of ProductGroup.

You'll need default namings for those things too, otherwise OJB load and 
store references and collections!

cheers,

Thomas


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> travis
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