The reason is that spring creates a proxy for the bean, so the fields
are not defined anymore on the proxy class, hence no injection
happens.
There may be a way to tell spring to use a different proxy mechanism
so that the generated class inherits from your bean class instead of a
simple proxy that only implements the interface's methods.
On Wed, Oct 8, 2008 at 1:24 PM, Sebastian Gomez <[EMAIL PROTECTED]> wrote:
> Hi, thanks for the quick answer. The code is quite simple, it just has
> a few "if"s and I don't touch the channel during the method until the
> "send" call. I've pasted underneath the important parts. As I said,
> the implementation works perfectly until the @Transactional annotation
> is put into its interface, so I believe it can't have nothing to do
> with the code. Hope you can get something out of it. What do you think
> could be the problem?
>
> Implementation:
>
> ... //package, other imports
> import javax.annotation.Resource;
> import xxx.yyy.services.PersistenceService;
>
> public class PersistenceServiceImpl implements PersistenceService,
> MessageExchangeListener {
>
> @Resource
> private DeliveryChannel channel;
>
> public void onMessageExchange(MessageExchange exchange)
> throws MessagingException {
> ...
> ... //channel never used here
> ...
> channel.send(exchange); // throws NPE
> }
>
>
> Interface:
>
> import org.springframework.transaction.annotation.Transactional;
>
> @Transactional
> public interface PersistenceService {
> ...
> }
>
> xbean.xml:
>
> ...
> <bean id="xxx.yyy.services.persistenceService"
> class="xxx.yyy.services.impl.PersistenceServiceImpl" />
>
> <bean:endpoint service="ns:persistenceService"
> endpoint="persistenceService"
> bean="#xxx.yyy.services.persistenceService" />
>
>
>
>
>
> On Wed, Oct 8, 2008 at 1:01 PM, Guillaume Nodet <[EMAIL PROTECTED]> wrote:
>> Could you paste the full source code and xml config please ?
>>
>> On Wed, Oct 8, 2008 at 12:45 PM, Sebastian Gomez <[EMAIL PROTECTED]> wrote:
>>> Hi everyone.
>>>
>>> I've got a servicemix-bean endpoint annotated with @Resource to obtain
>>> the DeliveryChannel. It's been working perfectly until I added the
>>> @Transactional annotation to it's interface. Now I keep getting a
>>> NullPointerException everytime I try to access the DeliveryChannel.
>>> Has someone had any similar problem? I guess it must be because of the
>>> proxy created to allow the transactability. Will I have to create the
>>> transactions explicitly in the code or is there any way to let both of
>>> these annotations live together?
>>>
>>> I guess someone must have come across this issue before, because I
>>> consider transactions to be a quite common part of any real-life
>>> application.
>>>
>>> Thanks in advance.
>>>
>>> Sebastian Gomez.
>>>
>>
>>
>>
>> --
>> Cheers,
>> Guillaume Nodet
>> ------------------------
>> Blog: http://gnodet.blogspot.com/
>> ------------------------
>> Open Source SOA
>> http://open.iona.com
>>
>
--
Cheers,
Guillaume Nodet
------------------------
Blog: http://gnodet.blogspot.com/
------------------------
Open Source SOA
http://open.iona.com
