Re: [Springframework-developer] Using Spring as a Singleton Factory?

[Robert W. <rw...@gm...>]

I just wanted to say thank you for your help, guiding me to the correct
forum, and tolerance with my poorly worded problem. For those that may be
facing a similar problem, I have reworded my question and posted it here
http://forum.springframework.org/showthread.php?p=185719

Regards,
Rob

On Tue, Jun 10, 2008 at 8:25 PM, Chris Beams <chr...@sp...>
wrote:

> Robert,
>
> Have you considered ApplicationContextAware?
>
>
> http://static.springframework.org/spring/docs/2.5.x/api/org/springframework/context/ApplicationContextAware.html
>
> If this is not sufficient for your needs, please post your question below
> to the community forums at
>
>        http://forum.springframework.org
>
> You'll find this is a more responsive question-and-answer forum than this
> mailing list which is currently low-traffic and used primarily for
> announcements.
>
> - Chris
>
>
> ----- Original Message -----
> From: "Robert Winch" <rw...@gm...>
> To: spr...@li...
> Sent: Tuesday, June 10, 2008 5:31:50 PM GMT -05:00 US/Canada Eastern
> Subject: Re: [Springframework-developer] Using Spring as a Singleton
> Factory?
>
>
> Thank you for your quick response. I am attempting to easily get instances
> out of the "current" ApplicationContext as a factory rather than using IoC.
> A few outlines are given below.
>
> 1) Here is an example of what I am trying to avoid. I will comment on an
> example below (perhaps I am doing this wrong and someone help with that).
>
> // I do not want them to have to know the resources to pass in. This
> assumes it is locatorContext.xml, but that can change.
> // This flexibility is externalized for a web application using the
> contextConfigLocation parameter
> BeanFactoryLocator locator =
> ContextSingletonBeanFactoryLocator.getInstance("locatorContext.xml");
>
> // Here I need to get a bean factory too? Why is it not just an
> ApplicationContext that is returned? Are there benefits to this?
> // If there are, I do not like that the user must know the id of the
> factory and have that in the code (similar to the resource location, it
> isn't externalized)
> BeanFactoryReference factoryRef = locator.useBeanFactory("springFactory");
>
> // Get an instance of the object. Here I am not concerned with the user
> knowing the id of the bean.
> Service service = (Service)factoryRef.getFactory().getBean("service");
>
> Another thing I do not like is that there are so many steps involved in
> getting the bean out of the applicationcontext. I just want to get an
> instance.
>
> 2) One approach I have seen that is similar to what I want is outlined
> below:
>
> // get the applicationcontext (but i do not want it to depend on j2ee.
> // For example ContextLoader contains a compile time dependency on
> ServletContext.
> ApplicationContext context =
> ContextLoader.getCurrentWebApplicationContext();
>
> // get a bean from the applicationcontext
> // once again, knowing the id of the bean is acceptable (and expected)
> Service s = (Service) context.getBean("service");
>
> // use the bean
>
> Is there any approach similar to #2 that works without a dependency on
> j2ee? I am certain I could write some code to do this, but I would like to
> do this with code that exists and in the cleanest way possible. Feedback on
> even doing this is appreciated too. I would like to know that part of the
> requirement is to use Spring as a Factory (Unfortunately, IoC is not
> permissible for this use case).
>
> Thanks!
>
>
> On Tue, Jun 10, 2008 at 2:03 PM, Chris Beams <
> chr...@sp... > wrote:
>
>
> Hi Robert,
>
> Please provide a bit more context about what you're trying to achieve
> (a simple code example would suffice).
>
> - Chris
>
> --
>
> Chris Beams
> Senior Consultant, SpringSource
> http://www.springsource.com
>
>
>
>
>
> On Jun 10, 2008, at 3:00 PM, Robert Winch wrote:
>
> > I am looking for a method to easily access the current
> > ApplicationContext that is not bound to j2ee. The closest thing I
> > have found is
> org.springframework.web.context.ContextLoader.getCurrentWebApplicationContext
> > (), but this class has dependencies on j2ee. Is there a recommended
> > way of obtaining the current ApplicationContext for applications
> > that may exist outside the web?
> >
> > Thanks in advance!
> > Rob
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>
>
>
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