Re: Prevayler Facade

Sorry, im very idiot today. Dont pay attention to the last sentence.

Diego.

On Wed, Jul 22, 2009 at 2:54 PM, Diego Miranda <[email protected]>wrote:

> Ups ... sorry :P a @Query!
>
> I write it again:
>
> The @Query annotation is enough. Actually i'm not using a default
> transaction when
>   the method is not marked, thus i'm annotating with @Transaction. But this
> functionality could be changed by a parameter.
>
> A @Transaction annotation only is needed if you
>
>
> On Wed, Jul 22, 2009 at 2:36 PM, Klaus Wuestefeld <
> [email protected]> wrote:
>
>> @Transaction or @Query?
>>
>> On Wed, Jul 22, 2009 at 2:32 PM, Diego Miranda<[email protected]>
>> wrote:
>> > That's  right! A @Transaction annotation is enough, then the Proxy can
>> infer
>> > the type of transaction. Actually i'm not using a default transaction
>> when
>> > the method is not marked. I've been thinking in adding some attributes
>> to
>> > the annotations, like encrypt="true" but i havent time to implement this
>> > yet.
>> >
>> > D.
>> >
>> > On Wed, Jul 22, 2009 at 1:17 PM, Klaus Wuestefeld
>> > <[email protected]> wrote:
>> >>
>> >> Interesting.
>> >>
>> >> Void methods without the annotation can default to Transaction.
>> >> Methods with a return value and without an annotation can default to
>> >> TransactionWithQuery.
>> >>
>> >> So I think you might only need the @Query annotation. It that right?
>> >>
>> >> See you, Klaus.
>> >>
>> >>
>> >>
>> >> On Wed, Jul 22, 2009 at 12:03 PM, Diego Miranda<
>> [email protected]>
>> >> wrote:
>> >> > Hi all!
>> >> >
>> >> > For a project i'm developing i wrote a simple proxy that implements
>> the
>> >> > transactions using annotations.
>> >> > Rigth now, this proxy needs that you implement an interface with the
>> >> > annotations. But the idea is that you
>> >> > define your prevalent object (without any interface) with those
>> >> > annotations.
>> >> > These annotations are the prevayler
>> >> > transactions:
>> >> >
>> >> > @Query
>> >> > @Transaction
>> >> > @TransactionWithQuery
>> >> >
>> >> > An example, following the prevayler demo examples:
>> >> >
>> >> > public interface IBank implements Serializable {
>> >> >
>> >> >        @TransactionWithQuery public Account createAccount (String
>> >> > holder)
>> >> > throws Account.InvalidHolder;
>> >> >        @Transaction public void deleteAccount(long number) throws
>> >> > AccountNotFound;
>> >> >
>> >> > }
>> >> >
>> >> > The implementation of IBank:
>> >> >
>> >> > public class Bank implements IBank {
>> >> >
>> >> >     ...
>> >> >     public Account createAccount(String holder) throws
>> >> > Account.InvalidHolder
>> >> > {
>> >> >         Account account = new Account(nextAccountNumber, holder);
>> >> >         accountsByNumber.put(new Long(nextAccountNumber++), account);
>> >> >
>> >> >         if (bankListener != null)
>> bankListener.accountCreated(account);
>> >> >         return account;
>> >> >     }
>> >> >
>> >> >     public void deleteAccount(long number) throws AccountNotFound {
>> >> >         Account account = findAccount(number);
>> >> >         accountsByNumber.remove(new Long(number));
>> >> >         if (bankListener != null)
>> bankListener.accountDeleted(account);
>> >> >     }
>> >> > ...
>> >> >
>> >> > The code remains the same.
>> >> >
>> >> > Generating the proxy is straighforward:
>> >> >
>> >> > Bank bank = PrevaylerProxy.createInstance ( IBank.class, new Bank(),
>> >> > "Bank"
>> >> > );
>> >> >
>> >> > If you found this is useful (and if possible, of course) i would be
>> glad
>> >> > to
>> >> > contrib with the code. :)
>> >> >
>> >> > Regards
>> >> >
>> >> > Diego
>> >> >
>> >> >
>> >> >
>> >> >
>> >> > --
>> >> > Ley de Hofstadter: Siempre toma más tiempo del que se preveía, aun
>> >> > cuando se
>> >> > tenga en cuenta la Ley de Hofstadter.
>> >> >
>> >> >
>> >> >
>> ------------------------------------------------------------------------------
>> >> >
>> >> > _______________________________________________
>> >> > To unsubscribe go to the end of this page:
>> >> > http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
>> >> > _______________________________________________
>> >> > "Databases in Memoriam" -- http://www.prevayler.org
>> >> >
>> >> >
>> >>
>> >>
>> >>
>> ------------------------------------------------------------------------------
>> >> _______________________________________________
>> >> To unsubscribe go to the end of this page:
>> >> http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
>> >> _______________________________________________
>> >> "Databases in Memoriam" -- http://www.prevayler.org
>> >
>> >
>> >
>> > --
>> > Ley de Hofstadter: Siempre toma más tiempo del que se preveía, aun
>> cuando se
>> > tenga en cuenta la Ley de Hofstadter.
>> >
>> >
>> ------------------------------------------------------------------------------
>> >
>> > _______________________________________________
>> > To unsubscribe go to the end of this page:
>> > http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
>> > _______________________________________________
>> > "Databases in Memoriam" -- http://www.prevayler.org
>> >
>> >
>>
>>
>> ------------------------------------------------------------------------------
>> _______________________________________________
>> To unsubscribe go to the end of this page:
>> http://lists.sourceforge.net/lists/listinfo/prevayler-discussion
>> _______________________________________________
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>>
>
>
>
> --
> Ley de Hofstadter: Siempre toma más tiempo del que se preveía, aun cuando
> se tenga en cuenta la Ley de Hofstadter.
>



-- 
Ley de Hofstadter: Siempre toma más tiempo del que se preveía, aun cuando se
tenga en cuenta la Ley de Hofstadter.

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