I guess that's a bit premature. Let's figure out if there is a problem
before opening a Jira. "Jiras" are "tasks", i.e. specific action
items. So I'd rather we come to some consensus on what needs to be
done firs, and then Jira action items.
Andrus
On Dec 1, 2009, at 2:50 PM, Evgeny Ryabitskiy (JIRA) wrote:
> Multiple Transactions: Migrate from Singleton pattern
> -----------------------------------------------------
>
> Key: CAY-1322
> URL: https://issues.apache.org/jira/browse/CAY-1322
> Project: Cayenne
> Issue Type: New Feature
> Components: Cayenne Core Library
> Reporter: Evgeny Ryabitskiy
> Fix For: 3.1M1
>
>
> Duplication from Dev-list:
>
> So.. I have several modules, each has own DomainConfig file and
> connection to it's DataBase. Sometimes there can be used different DB
> servers and even different DB types (usually it's Oracle and MS SQL,
> sometimes Sybase).
>
> Singletons:
> 1) Configuration.getSharedConfiguration()
> This problem is solved:
> DefaultConfiguration conf = new DefaultConfiguration("module1-
> cayenne.xml");
> conf .initialize;
> conf.getDomain();
> //spend some time to find solution... everywhere examples with
> SharedConfiguration
>
> 2)DataContext.getThreadLocal()
> Solved by own ThreadLocal for each module. (modules can work in one
> thread)
> //also spend some time
>
> 3)Transaction.getThreadTransaction()
> this is killing one!!!
> using of own ThreadLocal doesn't help.
> It's hard-coded in performing Query to use this singleton
> Transaction.getThreadTransaction()
> And that is really huge problem for me.
>
> So me suggestion is to move this ThreadLocal to DataDomain. Still can
> use singleton API for standalone applications.
> Also we can move DataContext to DataDomain.
>
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>
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