Sorry, I thought I replied all. Thanks. I'll start here. With overhead I
just mean that the setup for a new EOF stack must not be very fast and my guess
is that it's going to use a fairly large amount of memory.
-Mike
On Apr 4, 2011, at 11:30 AM, Anjo Krank wrote:
> Please keep this on-list.
>
> I haven't actually tried it and don't know what you mean by "overhead", but
> the core idea would be sth like:
>
> public Session() {
> EOModelGroup modelGroup = new EOModelGroup();
> EOModel model = modelGroup.addModelWithPath("/some/where"); // model should
> be in a subfolder of "Resources" so it won't get loaded
> adjustConnectionDict(model);
> EOAdaptor adaptor = EOAdaptor.adaptorWithModel(model);
> EODatabaseContext dbc = new EODatabaseContext(adaptor);
> EOObjectStoreCoordinator osc = new EOObjectStoreCoordinator();
> osc.addCooperatingObjectStore(dbc);
> EOEditingContext ec = new EOEditingContext(osc);
> setDefaultEditingContext(ec);
> }
>
> This probably won't even compile, but should get you started. All other ECs
> must be created as
>
> new EOEditingContext(session().defaultEditingContext().parentObjectStore())
>
> or from a thread-local.
>
> Cheers, Anjo
>
>
> Am 04.04.2011 um 17:17 schrieb Michael Gargano:
>
>> This sounds good to me. :-D Two questions... how much overhead is this?
>> (as i'm sure this is not a light weight process) where do i find out how to
>> dynamically create new eof stacks?
>>
>> Thanks.
>> -Mike
>>
>>
>> On Apr 4, 2011, at 11:11 AM, Anjo Krank wrote:
>>
>>> Actually, it's a yes.
>>>
>>> You can create one EOF stack per user and clone the model group so it's
>>> used in that stack. Then adjust the model dict for the connection and
>>> you're good to go. You need to take really good care you never use
>>> EOModelGroup.defaultGroup() anywhere, though.
>>>
>>> Cheers, Anjo
>>>
>>> Am 04.04.2011 um 17:04 schrieb Simon:
>>>
>>>> i think it's a big no :-(
>>>>
>>>> but you can definitely have multiple models - one for each db - and
>>>> relationships between the models.
>>>>
>>>> simon
>>>>
>>>> On 4 April 2011 16:00, Michael Gargano <[email protected]> wrote:
>>>>> Hi all,
>>>>>
>>>>> Is there a way to have a model connect to different databases
>>>>> simultaneously? So, I have a schema that is rev. eng'ed but that same
>>>>> schema is on 10 different databases, I want to fetch data from different
>>>>> DB's for different users of the system simultaneously. Is this possible?
>>>>> omg.... please say YES. :)
>>>>>
>>>>> Thanks.
>>>>> -Mike
>>>>>
>>>>>
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