> Under what circumstances can there be a transaction which invokes
> TransactionDelegate but no context at that time
DataContext is not bound to the current thread by default. User has
to enable this behavior, e.g. by using the filter:
http://cwiki.apache.org/CAYDOC/web-applications.html
Essentially 'getThreadDataContext' it is not related to a
transaction. It is used in this example only because (if configured)
it allows a shared delegate instance to do work without knowing
anything about the surrounding environment.
> 1. willCommit() appears to run even on a query to the database, not
> just when committing data. But perhaps this is just a naming thing.
This is the expected behavior. Cayenne starts an internal transaction
on all Queries passed through DataDomain, including selects.
Andrus
On Sep 17, 2006, at 10:51 PM, Aristedes Maniatis wrote:
> We have implemented a TransactionDelegate as per the instructions
> on http://cwiki.apache.org/confluence/display/CAYDOC/Understanding
> +Transactions We are however, finding some problems:
>
> 1. willCommit() appears to run even on a query to the database, not
> just when committing data. But perhaps this is just a naming thing.
>
> 2. We are getting an exception on the line of code "DataContext
> context = DataContext.getThreadDataContext();"
>
> java.lang.IllegalStateException: Current thread has no bound
> DataContext.
>
>
> Under what circumstances can there be a transaction which invokes
> TransactionDelegate but no context at that time?
>
>
> Ari Maniatis
>
>
>
>
> -------------------------->
> ish
> http://www.ish.com.au
> Level 1, 30 Wilson Street Newtown 2042 Australia
> phone +61 2 9550 5001 fax +61 2 9550 4001
> GPG fingerprint CBFB 84B4 738D 4E87 5E5C 5EFA EF6A 7D2E 3E49 102A
>
>
This archive was generated by hypermail 2.0.0 : Mon Sep 18 2006 - 01:06:43 EDT