timasmith
6/17/2004 2:16:00 AM
Hi,
If I seperate my middle tier (business domain services) into
functional areas, as follows
Application ----> Person Service ---> Database
----> Order Services ---> Database
such that I have a PersonService and an OrderService, each a singleton
server side object, which execute database procedures. I have
Person Order
+AddPerson +AddOrder
My application needs to be able to call both methods within a single
transaction.
At this time I have code as follows
public void AddPerson(PersonModel model) {
GetConnection()
StartDatabaseTransaction()
ExecuteMethod1..n
Commit()
ReleaseConnection()
}
and similar code for AddOrder(OrderModel mode) {
....
}
How do I have my application start the transaction and end the
transaction such as
public void AddPersonAndOrder(PersonModel person, OrderModel order) {
TransactionManager.StartTransaction();
personService.AddPerson(person);
orderService.AddOrder(order);
TransactionManager.CommitTransaction();
}
The application will be on a different node than the business services
(which can be on the same node) and cannot get a database connection.
Currently my remote PersonService and OrderService are server
instantiated thread safe singleton objects with no client data
(perhaps more scalable?)
Is this possible with Singletons- even with EnterpriseServices -
anywhere I can find examples of this?
thanks!
Tim