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From Brian McCallister <mccallis...@forthillcompany.com>
Subject Re: ODMG Tutorial Take 1
Date Wed, 01 Oct 2003 12:26:16 GMT
D'oh!
On Wednesday, October 1, 2003, at 08:04 AM, Mahler Thomas wrote:

> Hi Charles,
>
> You are absolutely right, a tx.begin() call is mandatory!
>
> Thomas
>
>> -----Original Message-----
>> From: Charles Anthony [mailto:charles.anthony@hpdsoftware.com]
>> Sent: Wednesday, October 01, 2003 1:46 PM
>> To: 'OJB Developers List'
>> Subject: RE: ODMG Tutorial Take 1
>>
>>
>> Hi;
>>
>> I'm just trying to build a test case to illustrate a problem
>> I may (or may
>> not !) have with ODMG. We've built a layer above ODMG, so I
>> virtually never
>> use it directly.
>>
>> Which is a round about way of saying I looked and followed
>> the tutorial -
>> and I think you've missed a kind-of-fundamental  thing : tx.begin()
>>
>> You must begin the transaction before you use it, otherwise you get a
>>
>> org.odmg.TransactionNotInProgressException: Transaction was
>> not open, call
>> tx.begin() before perform action, current status is:
>> STATUS_NO_TRANSACTION
>> exception
>>
>> HTH
>>
>> Charles.
>>
>>> -----Original Message-----
>>> From: Brian McCallister [mailto:mccallister@forthillcompany.com]
>>> Sent: 30 September 2003 20:38
>>> To: OJB Developers List
>>> Subject: ODMG Tutorial Take 1
>>>
>>>
>>> Just checked in take one on the new ODMG tutorial. I am
>> *not* an ODMG
>>> expert, or even, in my opinion, proficient with the ODMG API
>>> so I would
>>> very much appreciate feedback on idiomatic usage etc.
>>>
>>> I copied most of the usage from tutorial2, but have a few direct
>>> questions.
>>>
>>> Why persist new object via a write lock instead of
>>> Database.makePersistent()?
>>>
>>> In the update example, is the lock required in order to change the
>>> persistent version of the object?
>>>
>>> Etc.
>>>
>>> As it is only in CVS, I have a copy up at
>>> http://kasparov.skife.org/ojb/odmg-tutorial.html
>>>
>>> Thanks,
>>> Brian
>>>
>>>
>>>
>>>
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>
>
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