[Springframework-developer] Re: [Springframework-user] wiring beans created outside a BeanFactory

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I've just added two methods to DefaultListableBeanFactory:
- autowireByName(Object existingBean, boolean dependencyCheck)
- autowireByType(Object existingBean, boolean dependencyCheck)

Both will also invoke lifecycle methods if the corresponding interfaces =
are implemented, like =
InitializingBean/BeanFactoryAware/ApplicationContextAware. I'll commit =
the changes to CVS promptly.

For the time being, those autowire methods will just be defined in =
DefaultListableBeanFactory and thus its subclass XmlBeanFactory. I guess =
we don't want to require this functionality for all bean factories, so =
we shouldn't include them in the BeanFactory/ListableBeanFactory =
interfaces. The methods aren't concerned with configuration of the bean =
factory either, so Configurable(Listable)BeanFactory isn't the right =
place for them either.

Juergen
=20

-----Original Message-----
From: spr...@li...
[mailto:spr...@li...]On Behalf Of
Federico Spinazzi
Sent: Thursday, November 27, 2003 5:42 PM
To: spr...@li...
Subject: Re: [springframework] Re: [Springframework-user] wiring beans
created outside a BeanFactory

Rod Johnson wrote:

>Yes, I realised when I saw my post on the list that I'd missed the =
point.
>Sorry Frederico for assuming you had a much simpler problem...
>
And sorry I once thought you have just developed just another framework=20
... :-)
I would like to try to work on this, with maybe some guidance, it's OK?
Thanks you all.
Federico

>----- Original Message -----=20
>From: "j=FCrgen h=F6ller [werk3AT]" <jue...@we...>
>To: <spr...@li...>
>Sent: Thursday, November 27, 2003 3:21 PM
>Subject: RE: [Springframework-user] wiring beans created outside a
>BeanFactory
>
>
>I think what Frederico wants to do is pass an *existing instance* =
(coming in
>from a network) to a bean factory for filling in dependencies. Of =
course,
>without a bean definition in the factory, just autowiring would be
>possible - but that's something we could consider supporting.
>
>Juergen
>
>
>-----Original Message-----
>From: spr...@li...
>[mailto:spr...@li...]On Behalf Of
>Rod Johnson
>Sent: Thursday, November 27, 2003 3:56 PM
>To: spr...@li...
>Subject: Re: [Springframework-user] wiring beans created outside a
>BeanFactory
>
>
>Frederico,
>
>Dependencies can be resolved by the context using Inversion of Control.
>Please look at the example and my article on TSS:
>
>http://www.theserverside.com/resources/article.jsp?l=3DSpringFramework
>
>Simply put something like:
>
><property name=3D"store"><ref local=3D"myStoreBeanName"/></property>
><-- resolve other properties as well -->
>
>In the bean definition for your StoreCommand, using the XmlBeanFactory.
>
>Or just define it with
>
><bean id=3D"store" class=3D"StoreCommand"
>    autwire=3D"byType"
>
>and Spring will find the collaborators automagically.
>
>You don't need to subclass Spring classes or work with bean definitions
>directly.
>
>Regards,
>Rod
>
> =20
>
>>Hy,
>>
>>I would like to know if it is possible to ask a context to resolve the
>>dipendencies for a given object.
>>Assume I get a Command object from the network and I need to resolve
>>some dependencies before execution:
>>
>>public class StoreCommand implements Command, Serializable {
>>    private Entity entityToBeStored;
>>    private Store store;
>>    private Logger logger;
>>
>>    public StoreCommand(Entity entity) {
>>        this.entityToBeStored =3D entity;
>>    }
>>
>>    public void execute() {
>>        try {
>>            store.store(entityToBeStored);
>>        } catch (StoreException e) {
>>            logger.error("exception rised while storing entity " +
>>entityToBeStored, e);
>>        }
>>    }
>>
>>    public void setStore(Store store) {
>>        this.store =3D store;
>>    }
>>
>>
>>    public void setLogger(Logger logger) {
>>        this.logger =3D logger;
>>    }
>>}
>>
>>It would be fine if the dependencies on store and logger could be
>>resolved dinamically by a BeanFactory.
>>I think I've to write something like this (in a subclass of
>>AbstractBeanfactory):
>>
>>RootBeanDefinition beanDefinition =3D new
>>RootBeanDefinition(StoreCommand.class, null, false);
>>beanDefinition.setAutowire(RootBeanDefinition.AUTOWIRE_BY_TYPE);
>>autowireByType("to be wired", beanDefinition, ????);
>>
>>but then I'm stuck as I connot figure how to get an instance back.
>>Thanks,
>>Federico
>>
>>
>>
>>
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>
>
>
>
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