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

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

Hi Travis,

tr...@th... wrote:

> How does this sound for starters anyways:
> 
> JDO Extensions
> 
> Set the referenced table using table-name as an extension of the class.
> 
> <class name="Product" identity-type="application">
> <extension vendor-name="ojb" table-name="Product"/>
> 
> Set the referenced column in the above table using column-name and optionally a jdbc-type. jdbc-type matches the ojb type mapping.
> 
> <field name="stock">
> <extension vendor-name="ojb" column-name="stock" jdbc-type="INTEGER"/>
> </field>
>


ACK!
But I think its better to use the same syntax as in the (1.0) 
repository.dtd:

<class name="Product" identity-type="application">
<extension vendor-name="ojb" table="Product" />

<field name="stock">
<extension vendor-name="ojb" column="stock" jdbc-type="INTEGER"/>
</field>

This will make it much easier to see which *.jdo attribute matches to a 
repository.xml attribute.

 
> If no extensions are specified then the following default mappings will occur:
> 
> table-name=Class.getName()
> 
> column-name=field name
> 
> jdbc-type=equivalent java type
> 
> 


ACK!
What about primary keys and foreign keys for references and collections?
Any ideas about default naming conventions?

cheers,

Thomas