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From Brian Pontarelli <br...@pontarelli.com>
Subject Re: struts 2.2 and guice
Date Tue, 01 Dec 2009 18:38:13 GMT
I was actually talking about expanding it out like Chris mentioned. I don't see any reason
why those who want to use the container that Struts is using shouldn't be able to. Since the
annotations and APIs will be standard across Guice and Spring with the JSR, it seems like
it would be possible to allow the application and framework to use the same DI container,
just different Injectors.

The default could be Guice but allow Spring to be pluggable (or even discoverable). As long
as the internals of Struts are compliant, it should work fine. This also provides the benefit
of configuration reduction in web.xml and a more comprehensive solution. It would also get
Struts out of the business of building objects and requiring additional configuration and
plugins for different DI containers. I would guess it would clean up the double ObjectFactory
issues as well.

-bp



On Dec 1, 2009, at 11:31 AM, Musachy Barroso wrote:

> this is not related to the application itself, you can still use any
> IoC you want. This is for the IoC that is used internally to wire
> struts internals together, which at the moment is an old version of
> guice which is in xwork.
> 
> On Tue, Dec 1, 2009 at 10:28 AM, Chris Pratt <thechrispratt@gmail.com> wrote:
>> I wouldn't have a problem with it as long as I can still swap in my trusty
>> Spring IoC container, I can't see my team moving away from it any time soon,
>> but I still want to try to stay as current as possible on Struts.
>>  (*Chris*)
>> 
>> On Tue, Dec 1, 2009 at 10:21 AM, Brian Pontarelli <brian@pontarelli.com>wrote:
>> 
>>> They'll be part of the Guice distribution and under ASLv2 since Guice uses
>>> that.
>>> 
>>> The real question is how to setup the Injector's. I tend to think this
>>> layout would be best:
>>> 
>>>        Base
>>>            |
>>>            |
>>>   _________
>>>   |                  |
>>>   |                  |
>>> Struts        App
>>> 
>>> 
>>> The Base injector will contain the JEE objects (request, response, etc.)
>>> and any Struts objects that can be used by the application. The Struts
>>> injector will contain all of the private objects that should not be
>>> accessible to the application. The App injector will contain all the
>>> application objects like Actions and such.
>>> 
>>> -bp
>>> 
>>> 
>>> On Dec 1, 2009, at 10:59 AM, Musachy Barroso wrote:
>>> 
>>>> good point Brian, that has came up also. I have a couple of concerns
>>>> about it, like what is the status of the jsr and will the API
>>>> (annotations) will be under a decent (read ASF compatible license)
>>>> license and in maven central? which is usually a pain point when it
>>>> comes to Sun APIs.
>>>> 
>>>> musachy
>>>> 
>>>> On Tue, Dec 1, 2009 at 9:54 AM, Brian Pontarelli <brian@pontarelli.com>
>>> wrote:
>>>>> I'd suggest using Guice trunk and the JSR annotations rather than the
>>> Guice annotations. I'd also make the injector pluggable so that people can
>>> plug in Spring/Guice/etc easily.
>>>>> 
>>>>> -bp
>>>>> 
>>>>> 
>>>>> On Dec 1, 2009, at 10:33 AM, Musachy Barroso wrote:
>>>>> 
>>>>>> I have talked to a couple of people before and everyone seems to
agree
>>>>>> that using guice instead of our internal IoC container (guice pre
1.0
>>>>>> I think), would be a good idea. I don't have any experience with
guice
>>>>>> 2.0, but looking at the docs it seems like porting our stuff would
not
>>>>>> be that hard. Less code to maintain, and we get more
>>>>>> features/improvements. If we go with this idea, guice would be shaded
>>>>>> into xwork to avoid classpath conflicts.
>>>>>> 
>>>>>> what do you think?
>>>>>> 
>>>>>> musachy
>>>>>> 
>>>>>> ---------------------------------------------------------------------
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>>>>>> 
>>>>> 
>>>>> 
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>>>>> 
>>>>> 
>>>> 
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>>>> 
>>> 
>>> 
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>>> 
>>> 
>> 
> 
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