I don't think it can be done. As Andrus was suggesting, JDBC doesn't
seem to have a way to read those values from the database schema. The
only portable approach I can think of is using SQLtemplate to create a
dummy object at system startup, read back its values and then delete
that record.
It seems like an unusual request though - can you not simply implement
the default values within Cayenne rather than within the database? Or
else use the mysql command "SHOW CREATE TABLE" to get the default
values and map them onto the right attributes at startup. Then you can
populate the values in prePersist() or wherever is appropriate as each
record is created.
Ari Maniatis
On 23/12/2007, at 10:12 AM, Adam Yocum wrote:
> Hi Ari,
>
> It looks like I can get close with ...
>
> http://cayenne.apache.org/doc/api/org/apache/cayenne/map/DbAttribute.html#getType()
>
> That returns the SQL type that of the DbAttribute, if only I could
> get the Default Value set in the database.
>
> I need something like DbAttribute.getDefaultValue();
>
> suggestions?
>
> Thanks,
> Adam
>
> Aristedes Maniatis <ar..sh.com.au> wrote:
>
> On 23/12/2007, at 5:30 AM, Adam Yocum wrote:
>
>> 'SHOW columns FROM tablename'
>
> This might be a good starting point:
>
> http://cayenne.apache.org/doc/api/org/apache/cayenne/map/ObjEntity.html#getAttributes()
>
> Ari Maniatis
>
>
>
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This archive was generated by hypermail 2.0.0 : Sat Dec 22 2007 - 21:08:56 EST