On 2010-04-01, at 12:07 AM, Cheong Hee wrote:
> Is there any pointers or sample code how these could be done to initiate
> connection and save changes in respective ec?
You don't need multiple ec's unless you want them. Other than that it's
transparent.
EOEditingContext ec = ERXEC.newEditingContext();
Person p = (Person)EOUtitlites.createAndInsertInstance(ec,
Person.ENTITY_NAME); // Person entity persists in database A
Horse h = (Horse)EOUtitlites.createAndInsertInstance(ec,
Horse.ENTITY_NAME); // Horse entity persists in database B
// make chagnes to h and p
ec.saveChanges(); // p saved to database A, h saved to database B
You can model cross database relationships as long as you don't try and create
a fetch based on them.
>
> Cheers
>
> Cheong Hee
>
> ----- Original Message ----- From: "Mark Ritchie" <[email protected]>
> To: "James Cicenia" <[email protected]>
> Cc: "WO Dev Group" <[email protected]>
> Sent: Thursday, April 01, 2010 1:05 AM
> Subject: Re: two different databases at same time?
>
>
>> On 31/Mar/2010, at 8:15 AM, James Cicenia wrote:
>>> Is it possible to use two different databases, I guess via two different
>>> models?
>>> I will need to connect to an Oracle big database on a remote server and was
>>> wondering if I could also use a mySQL or postgres database for user control
>>> on local server.
>>
>> Yes, yes! You can have multiple concurrent connections! One for each
>> EOModel!
>> Just make sure that the entity names are unique across all EOModels!
>> Good luck!
>> M.
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