[Note: This is a cross-post; I have initially posted to the list
[EMAIL PROTECTED] but I guess the issue is more related to
hivemind,
so I post here.]
Hi list,
I need to wrap "begin transaction" and "end transaction" actions around
a task (a Tapestry web request, actually). I've read about Hivemind,
http://www.nabble.com/hivemind-factory-service-tf251931.html#a704856
and configured a service point (see below). This works very well: my
transaction is created, but I cannot see when it is ended (committed/
rolled back).
More precisely, I am struggling with:
* What method is called on the object created by the factory when it
is discarded? It is threadDidDiscardService(), right?
* How can I catch exceptions from my actual task so that I can do a
rollback
instead of a commit?
I am new to Hivemind, so please excuse these rather simple questions.
Many thanks for you patience!
Kaspar
--
Here's my configuration:
<service-point
interface="org.my.tapestry.alfresco.AlfrescoTransactionContext"
id="alfrescoContext">
<invoke-factory service-id="AlfrescoTransactionFactory"
model="threaded" />
</service-point>
<service-point
interface="org.apache.hivemind.ServiceImplementationFactory"
id="AlfrescoTransactionFactory" parameters-occurs="none">
<create-instance
class="org.my.tapestry.alfresco.AlfrescoTransactionFactory" />
</service-point>
Here is my factory:
public class AlfrescoTransactionFactory implements
ServiceImplementationFactory, Discardable {
public Object createCoreServiceImplementation
(ServiceImplementationFactoryParameters factoryParameters)
{
System.err.println("createCoreServiceImplementation"); // gets
called!
UserTransaction transaction;
ServiceRegistry serviceRegistry;
try {
transaction =
AlfrescoApplicationInitializer.createAndBeginAuthenticatedTransaction
(true);
serviceRegistry =
AlfrescoApplicationInitializer.getServiceRegistry();
}
catch (Exception e) {
throw new ApplicationRuntimeException("Could not create an
Alfresco transactoin.", e);
}
return new AlfrescoTransactionContextImpl(transaction,
serviceRegistry);
}
public void threadDidDiscardService()
{
System.err.println("threadDidDiscardService"); // never called!
// ... end the transaction here (todo)
}
}
