Re: Mixing T5 and Guice --- best practices
You may run in to issues wrt hot class reloading, but maybe not. Only one way for you to find out. ;) FYI - I was witness to at least a couple tiny email exchanges between Howard and Bob discussing their implementations and what kind of options there might be. The T5 IoC feature set is just too rich to be handled by Guice right now without a lot of work being done on the Guice side. Just didn't want people thinking that Howard just blindly does his own thing without collaborating with anyone. They both understand the issues involved and seem to sort of agree that things really do work a little differently in many areas. Maybe someday Guice will support all of the features T5 needs, but in the meantime it doesn't - so there's not really anything that can be done about it without a lot of re-write work being done in Guice. On Oct 30, 2007 12:45 PM, Jan Vissers <[EMAIL PROTECTED]> wrote: > Please, please don't 'shoot' me - but if this is the case what would be > a reason for me to use T5 IoC, other that for injecting stuff into page > classes? > > Thiago H de Paula Figueiredo wrote: > > On Mon, 29 Oct 2007 23:08:20 -0200, Jan Vissers > > <[EMAIL PROTECTED]> wrote: > >> A different question. If I would chose to use Guice as IoC and T5 IoC > >> simply as a bridge into Guice - which part(s) of T5 as a web app > >> framework would I be unable to use? > > > > AFAIK, none. Of course, Howard can answer this question better than > > me. :) > > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Jesse Kuhnert Tapestry/Dojo team member/developer Open source based consulting work centered around dojo/tapestry/tacos/hivemind. http://blog.opencomponentry.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
pages and components can be decorated using mixins! g, kris Ognen Ivanovski <[EMAIL PROTECTED]> Gesendet von: news <[EMAIL PROTECTED]> 31.10.2007 12:39 Bitte antworten an "Tapestry users" An users@tapestry.apache.org Kopie Thema Re: Mixing T5 and Guice --- best practices Jan Vissers wrote: > Please, please don't 'shoot' me - but if this is the case what would be > a reason for me to use T5 IoC, other that for injecting stuff into page > classes? I think the T5 IoC is great, fast, simple and covers 80% of the things you need an IoC container for. Plug, allows you to override a great many parts of tapestry which, to me, is a great value. Contributions, I wont even mention (myself a long time RCP developer, I consider them a must). Furthermore, if you need a more powerful container (like spring or something) you can always plug it in via an ObjectProvider. The only things that might be missed at the moment is: a) You can't use decorators on pages and components (you could us the request processing chain of command, but that might not be so expressive) b) decoration of multiple services might not be as expressive as one would like it to be if one would like use declarative transaction management. Work is being done here (http://tapestry.apache.org/tapestry5/tapestry-ioc/decorator.html see Targetting multiple services). -- Ognen Ivanovski | [EMAIL PROTECTED] phone +389 -2- 30 64 532 | fax +389 -2- 30 79 495 Netcetera | 1000 Skopje | Macedonia | http://netcetera.com.mk - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
On Wed, 31 Oct 2007 09:39:36 -0200, Ognen Ivanovski
<[EMAIL PROTECTED]> wrote:
b) decoration of multiple services might not be as expressive as one
would like it to be if one would like use declarative transaction
management. Work is being done here
(http://tapestry.apache.org/tapestry5/tapestry-ioc/decorator.html see
Targetting multiple services).
That page says:
"Note: Another idea will be other ways of matching services: base on
inheritance of the service interface and/or based on the presence of
particular class annotations on the service interface. None of this has
been implemented yet, and can readily be accompllished inside the
decorator method (which will return null if it decides the service doesn't
need decoration)."
Well, it's not entirely true. If you write a @Match("*"), Tapestry-IoC
throws an exception telling that you cannot decorate internal Tapestry-IoC
services. I'll file a JIRA about this.
--
Thiago H. de Paula Figueiredo
Desenvolvedor, Instrutor e Consultor de Tecnologia
Eteg Tecnologia da Informação Ltda.
http://www.eteg.com.br
-
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Re: Mixing T5 and Guice --- best practices
Jan Vissers wrote: Please, please don't 'shoot' me - but if this is the case what would be a reason for me to use T5 IoC, other that for injecting stuff into page classes? I think the T5 IoC is great, fast, simple and covers 80% of the things you need an IoC container for. Plug, allows you to override a great many parts of tapestry which, to me, is a great value. Contributions, I wont even mention (myself a long time RCP developer, I consider them a must). Furthermore, if you need a more powerful container (like spring or something) you can always plug it in via an ObjectProvider. The only things that might be missed at the moment is: a) You can't use decorators on pages and components (you could us the request processing chain of command, but that might not be so expressive) b) decoration of multiple services might not be as expressive as one would like it to be if one would like use declarative transaction management. Work is being done here (http://tapestry.apache.org/tapestry5/tapestry-ioc/decorator.html see Targetting multiple services). -- Ognen Ivanovski | [EMAIL PROTECTED] phone +389 -2- 30 64 532 | fax +389 -2- 30 79 495 Netcetera | 1000 Skopje | Macedonia | http://netcetera.com.mk - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
On Tue, 30 Oct 2007 14:45:26 -0200, Jan Vissers <[EMAIL PROTECTED]> wrote: Please, please don't 'shoot' me - but if this is the case what would be a reason for me to use T5 IoC, other that for injecting stuff into page classes? Don't forget Tapestry IoC is a general purpose IoC container. ;) We won't shoot you or anybody else if you come with good arguments. :) I couldn't figure out yet what are the features you want from the IoC container. If I did, I could help you more than just saying "T5 IoC rules!". :) And don't forget to read the "Why not X" sections in http://tapestry.apache.org/tapestry5/tapestry-ioc/. -- Thiago H. de Paula Figueiredo Desenvolvedor, Instrutor e Consultor de Tecnologia Eteg Tecnologia da Informação Ltda. http://www.eteg.com.br - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
Please, please don't 'shoot' me - but if this is the case what would be a reason for me to use T5 IoC, other that for injecting stuff into page classes? Thiago H de Paula Figueiredo wrote: On Mon, 29 Oct 2007 23:08:20 -0200, Jan Vissers <[EMAIL PROTECTED]> wrote: A different question. If I would chose to use Guice as IoC and T5 IoC simply as a bridge into Guice - which part(s) of T5 as a web app framework would I be unable to use? AFAIK, none. Of course, Howard can answer this question better than me. :) - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
On Mon, 29 Oct 2007 23:08:20 -0200, Jan Vissers <[EMAIL PROTECTED]> wrote: A different question. If I would chose to use Guice as IoC and T5 IoC simply as a bridge into Guice - which part(s) of T5 as a web app framework would I be unable to use? AFAIK, none. Of course, Howard can answer this question better than me. :) -- Thiago H. de Paula Figueiredo Desenvolvedor, Instrutor e Consultor de Tecnologia Eteg Tecnologia da Informação Ltda. http://www.eteg.com.br - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
On Mon, 29 Oct 2007 18:52:42 -0200, Jan Vissers <[EMAIL PROTECTED]> wrote: Exactly - and to me T5 IoC looks/is very closely related to T5 the web application framework, whereas Guice seems more general purpose. I beg to differ. :) T5-IoC was made to be the Tapestry 5 IoC container, but it is as general purpose as any other. ;) The only differences is that Tapestry 5-IoC is used "natively" by Tapestry 5. -- Thiago H. de Paula Figueiredo Desenvolvedor, Instrutor e Consultor de Tecnologia Eteg Tecnologia da Informação Ltda. http://www.eteg.com.br - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
Jan, forgot to add I know you saw this last time around. ;-) Cheers, Nick. Jan Vissers wrote: On the why of Guice... - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
This is almost a FAQ. See the older post here: http://tapestryjava.blogspot.com/search?q=guice Also see the "Why Not ..." sections: http://tapestry.apache.org/tapestry5/tapestry-ioc/ Cheers, Nick. Jan Vissers wrote: On the why of Guice... Not trying to offend anyone here, but maybe T5 already could have been finished if instead of writing yet another IoC framework the choice was made to adopt an elegant one. https://www.blogger.com/comment.g?blogID=4110180&postID=563902125495823741 Bob Lee: "If you want to know why Guice is so popular, the best advice I can give is, try it. Who knows? You might decide to lobby for a couple new features and adopt it, in which case you could spend more time on your web framework." Given the fact that Guice already had a major influence on T5, it is still not quite clear to me why T5 IoC exists. But then again - I'm just a simple developer waiting for the next great version of *the web framework*. -J. On Mon, 29 Oct 2007 16:28:33 -0200, Jan Vissers <[EMAIL PROTECTED]> wrote: Partially inspired by a question/some work by Leon Pennings (on this list), partially because of my interest in Guice - What exactly makes you interested in Guice? As far as I know (but I haven't taken a look in Guice for some time already, so I can be wrong), Tapestry-IoC does (almost) everything Guice does, but better. One of the reasons is that T-IoC needs no annotations in your beans. :) -- Thiago H. de Paula Figueiredo Desenvolvedor, Instrutor e Consultor de Tecnologia Eteg Tecnologia da Informação Ltda. http://www.eteg.com.br - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
On the why of Guice... Not trying to offend anyone here, but maybe T5 already could have been finished if instead of writing yet another IoC framework the choice was made to adopt an elegant one. https://www.blogger.com/comment.g?blogID=4110180&postID=563902125495823741 Bob Lee: "If you want to know why Guice is so popular, the best advice I can give is, try it. Who knows? You might decide to lobby for a couple new features and adopt it, in which case you could spend more time on your web framework." Given the fact that Guice already had a major influence on T5, it is still not quite clear to me why T5 IoC exists. But then again - I'm just a simple developer waiting for the next great version of *the web framework*. -J. > On Mon, 29 Oct 2007 16:28:33 -0200, Jan Vissers <[EMAIL PROTECTED]> > wrote: > >> Partially inspired by a question/some work by Leon Pennings (on this >> list), partially because of my interest in Guice - > > What exactly makes you interested in Guice? As far as I know (but I > haven't taken a look in Guice for some time already, so I can be wrong), > Tapestry-IoC does (almost) everything Guice does, but better. One of the > reasons is that T-IoC needs no annotations in your beans. :) > > -- > Thiago H. de Paula Figueiredo > Desenvolvedor, Instrutor e Consultor de Tecnologia > Eteg Tecnologia da Informação Ltda. > http://www.eteg.com.br > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
On 10/29/07, Howard Lewis Ship <[EMAIL PROTECTED]> wrote: > and lifecycle, the need for service contributions (something none of the > other IoC containers seem to "get") ... but Guice pushes the spectrum of Not exactly correct. They do not provide it out of the box :-( One can do the same with spring for example - that's what grails does - but of course tapestry shines in the simplicity of the setup. But I agree that contributions are a big thing and none of the containers seem to make it easy to contribute. Perhaps not enough Eclipse influence up there - they are all stuck with IDEA ? :-) Alex. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
I used Hivemind without Tapestry 4 on a handful of high volume applications at a large bank. In fact, I came to use Tapestry after working with Hivemind first. Its concept of distributed configuration is quite unique and very powerful. Tapestry 5 IoC has the same. Ben On 10/29/07, Jan Vissers <[EMAIL PROTECTED]> wrote: > > That's true. > > To compare it would be interesting to find out how many projects out there > use Hivemind without Tapestry 4? > > A different question. If I would chose to use Guice as IoC and T5 IoC > simply as a bridge into Guice - which part(s) of T5 as a web app framework > would I be unable to use? > > -J > > > > > > Nothing stops you from using T5 IoC in a non-T5 application, though. > > > > -Filip > > > > Jan Vissers skrev: > >> Exactly - and to me T5 IoC looks/is very closely related to T5 the web > >> application framework, whereas Guice seems more general purpose. > > > > - > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
Re: Mixing T5 and Guice --- best practices
That's true. To compare it would be interesting to find out how many projects out there use Hivemind without Tapestry 4? A different question. If I would chose to use Guice as IoC and T5 IoC simply as a bridge into Guice - which part(s) of T5 as a web app framework would I be unable to use? -J > Nothing stops you from using T5 IoC in a non-T5 application, though. > > -Filip > > Jan Vissers skrev: >> Exactly - and to me T5 IoC looks/is very closely related to T5 the web >> application framework, whereas Guice seems more general purpose. > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
Nothing stops you from using T5 IoC in a non-T5 application, though. -Filip Jan Vissers skrev: Exactly - and to me T5 IoC looks/is very closely related to T5 the web application framework, whereas Guice seems more general purpose. - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
Exactly - and to me T5 IoC looks/is very closely related to T5 the web application framework, whereas Guice seems more general purpose. > Credit where credit is due: I've borrowed a lot of great ideas from Guice. > Initially, T5 IoC started as just a better HiveMind, but the influence of > Guice really pushed the envelope in a number of ways. Guice, coming in > new > and based on generics and annotations, had a large number of innovations. > > We disagree on a number of crucial ideas including certain aspects of > scope > and lifecycle, the need for service contributions (something none of the > other IoC containers seem to "get") ... but Guice pushes the spectrum of > finding matches based on type and annotations. > > On 10/29/07, Thiago H de Paula Figueiredo <[EMAIL PROTECTED]> wrote: >> >> On Mon, 29 Oct 2007 16:28:33 -0200, Jan Vissers <[EMAIL PROTECTED]> >> wrote: >> >> > Partially inspired by a question/some work by Leon Pennings (on this >> > list), partially because of my interest in Guice - >> >> What exactly makes you interested in Guice? As far as I know (but I >> haven't taken a look in Guice for some time already, so I can be wrong), >> Tapestry-IoC does (almost) everything Guice does, but better. One of the >> reasons is that T-IoC needs no annotations in your beans. :) >> >> -- >> Thiago H. de Paula Figueiredo >> Desenvolvedor, Instrutor e Consultor de Tecnologia >> Eteg Tecnologia da Informação Ltda. >> http://www.eteg.com.br >> >> - >> To unsubscribe, e-mail: [EMAIL PROTECTED] >> For additional commands, e-mail: [EMAIL PROTECTED] >> >> > > > -- > Howard M. Lewis Ship > Partner and Senior Architect at Feature50 > > Creator Apache Tapestry and Apache HiveMind > - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
Thanks for this quick response - however the code below is already working
in my case. This simple examples shows how to let Guice and T5 work
together - I was just looking for some thoughts on whether this is
actually a good/the best idea.
> Seems like you'll need access to the Registry, or at least and
> ObjectLocator
> to make them play together (allow Guice beans to be injected into Tapestry
> services/components).
>
> A contribution to MasterObjectProvider could do the job.
>
> Haven't looked into it in detail.
>
> On 10/29/07, Jan Vissers <[EMAIL PROTECTED]> wrote:
>>
>> Partially inspired by a question/some work by Leon Pennings (on this
>> list), partially because of my interest in Guice - if been trying to
>> test some stuff on how best to integrate Guice and T5. Before asking
>> whether my approach is appropriate I would like to ask what your opinion
>> is on the whole idea of mixing Guice and T5 IoC?
>>
>>
>>
>> This is what I've done for the NumberGuess tutorial.
>>
>> public interface IPlayGenerator {
>> int generateRandomNumber();
>> }
>>
>> public class PlayGeneratorImpl implements IPlayGenerator {
>> public int generateRandomNumber() {
>>Random random = new Random();
>>return random.nextInt(10) + 1;
>> }
>> }
>>
>> //Guice stuff
>> public class PlayModule extends AbstractModule {
>> @Override
>> protected void configure() {
>>
>> bind(IPlayGenerator.class).to(PlayGeneratorImpl.class).in(Scopes.SINGLETON
>> );
>> }
>> }
>>
>> //Actual client service
>> public class NumberGuessPlayer {
>> private final IPlayGenerator generator;
>>
>> //Guice Inject
>> @Inject
>> public NumberGuessPlayer(IPlayGenerator generator) {
>> this.generator = generator;
>> }
>>
>> public int play() {
>> return generator.generateRandomNumber();
>> }
>> }
>>
>> //T5/Guice bootstrapping
>> public class AppModule {
>> // Guice Injector instance
>> private static final Injector injector;
>>
>> static {
>> injector = Guice.createInjector(new Module[] { new PlayModule()
>> });
>> }
>>
>> public static NumberGuessPlayer buildNumberGuessPlayerFinder() {
>> return injector.getInstance(NumberGuessPlayer.class);
>> }
>> ...
>> ...
>> }
>>
>> //Start page
>> public class Start {
>> @InjectPage
>> private Guess guess;
>>
>> /T5 Inject
>> @Inject
>> private NumberGuessPlayer player;
>>
>> Object onAction() {
>>int target = player.play();
>>
>>guess.setup(target);
>>
>>return guess;
>> }
>> }
>>
>>
>> Any comments, tips?
>>
>> -J
>>
>> -
>> To unsubscribe, e-mail: [EMAIL PROTECTED]
>> For additional commands, e-mail: [EMAIL PROTECTED]
>>
>>
>
>
> --
> Howard M. Lewis Ship
> Partner and Senior Architect at Feature50
>
> Creator Apache Tapestry and Apache HiveMind
>
-
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Re: Mixing T5 and Guice --- best practices
Credit where credit is due: I've borrowed a lot of great ideas from Guice. Initially, T5 IoC started as just a better HiveMind, but the influence of Guice really pushed the envelope in a number of ways. Guice, coming in new and based on generics and annotations, had a large number of innovations. We disagree on a number of crucial ideas including certain aspects of scope and lifecycle, the need for service contributions (something none of the other IoC containers seem to "get") ... but Guice pushes the spectrum of finding matches based on type and annotations. On 10/29/07, Thiago H de Paula Figueiredo <[EMAIL PROTECTED]> wrote: > > On Mon, 29 Oct 2007 16:28:33 -0200, Jan Vissers <[EMAIL PROTECTED]> > wrote: > > > Partially inspired by a question/some work by Leon Pennings (on this > > list), partially because of my interest in Guice - > > What exactly makes you interested in Guice? As far as I know (but I > haven't taken a look in Guice for some time already, so I can be wrong), > Tapestry-IoC does (almost) everything Guice does, but better. One of the > reasons is that T-IoC needs no annotations in your beans. :) > > -- > Thiago H. de Paula Figueiredo > Desenvolvedor, Instrutor e Consultor de Tecnologia > Eteg Tecnologia da Informação Ltda. > http://www.eteg.com.br > > - > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > > -- Howard M. Lewis Ship Partner and Senior Architect at Feature50 Creator Apache Tapestry and Apache HiveMind
Re: Mixing T5 and Guice --- best practices
On Mon, 29 Oct 2007 16:28:33 -0200, Jan Vissers <[EMAIL PROTECTED]> wrote: Partially inspired by a question/some work by Leon Pennings (on this list), partially because of my interest in Guice - What exactly makes you interested in Guice? As far as I know (but I haven't taken a look in Guice for some time already, so I can be wrong), Tapestry-IoC does (almost) everything Guice does, but better. One of the reasons is that T-IoC needs no annotations in your beans. :) -- Thiago H. de Paula Figueiredo Desenvolvedor, Instrutor e Consultor de Tecnologia Eteg Tecnologia da Informação Ltda. http://www.eteg.com.br - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Mixing T5 and Guice --- best practices
Seems like you'll need access to the Registry, or at least and ObjectLocator
to make them play together (allow Guice beans to be injected into Tapestry
services/components).
A contribution to MasterObjectProvider could do the job.
Haven't looked into it in detail.
On 10/29/07, Jan Vissers <[EMAIL PROTECTED]> wrote:
>
> Partially inspired by a question/some work by Leon Pennings (on this
> list), partially because of my interest in Guice - if been trying to
> test some stuff on how best to integrate Guice and T5. Before asking
> whether my approach is appropriate I would like to ask what your opinion
> is on the whole idea of mixing Guice and T5 IoC?
>
>
>
> This is what I've done for the NumberGuess tutorial.
>
> public interface IPlayGenerator {
> int generateRandomNumber();
> }
>
> public class PlayGeneratorImpl implements IPlayGenerator {
> public int generateRandomNumber() {
>Random random = new Random();
>return random.nextInt(10) + 1;
> }
> }
>
> //Guice stuff
> public class PlayModule extends AbstractModule {
> @Override
> protected void configure() {
>
> bind(IPlayGenerator.class).to(PlayGeneratorImpl.class).in(Scopes.SINGLETON
> );
> }
> }
>
> //Actual client service
> public class NumberGuessPlayer {
> private final IPlayGenerator generator;
>
> //Guice Inject
> @Inject
> public NumberGuessPlayer(IPlayGenerator generator) {
> this.generator = generator;
> }
>
> public int play() {
> return generator.generateRandomNumber();
> }
> }
>
> //T5/Guice bootstrapping
> public class AppModule {
> // Guice Injector instance
> private static final Injector injector;
>
> static {
> injector = Guice.createInjector(new Module[] { new PlayModule()
> });
> }
>
> public static NumberGuessPlayer buildNumberGuessPlayerFinder() {
> return injector.getInstance(NumberGuessPlayer.class);
> }
> ...
> ...
> }
>
> //Start page
> public class Start {
> @InjectPage
> private Guess guess;
>
> /T5 Inject
> @Inject
> private NumberGuessPlayer player;
>
> Object onAction() {
>int target = player.play();
>
>guess.setup(target);
>
>return guess;
> }
> }
>
>
> Any comments, tips?
>
> -J
>
> -
> To unsubscribe, e-mail: [EMAIL PROTECTED]
> For additional commands, e-mail: [EMAIL PROTECTED]
>
>
--
Howard M. Lewis Ship
Partner and Senior Architect at Feature50
Creator Apache Tapestry and Apache HiveMind
Mixing T5 and Guice --- best practices
Partially inspired by a question/some work by Leon Pennings (on this
list), partially because of my interest in Guice - if been trying to
test some stuff on how best to integrate Guice and T5. Before asking
whether my approach is appropriate I would like to ask what your opinion
is on the whole idea of mixing Guice and T5 IoC?
This is what I've done for the NumberGuess tutorial.
public interface IPlayGenerator {
int generateRandomNumber();
}
public class PlayGeneratorImpl implements IPlayGenerator {
public int generateRandomNumber() {
Random random = new Random();
return random.nextInt(10) + 1;
}
}
//Guice stuff
public class PlayModule extends AbstractModule {
@Override
protected void configure() {
bind(IPlayGenerator.class).to(PlayGeneratorImpl.class).in(Scopes.SINGLETON);
}
}
//Actual client service
public class NumberGuessPlayer {
private final IPlayGenerator generator;
//Guice Inject
@Inject
public NumberGuessPlayer(IPlayGenerator generator) {
this.generator = generator;
}
public int play() {
return generator.generateRandomNumber();
}
}
//T5/Guice bootstrapping
public class AppModule {
// Guice Injector instance
private static final Injector injector;
static {
injector = Guice.createInjector(new Module[] { new PlayModule() });
}
public static NumberGuessPlayer buildNumberGuessPlayerFinder() {
return injector.getInstance(NumberGuessPlayer.class);
}
...
...
}
//Start page
public class Start {
@InjectPage
private Guess guess;
/T5 Inject
@Inject
private NumberGuessPlayer player;
Object onAction() {
int target = player.play();
guess.setup(target);
return guess;
}
}
Any comments, tips?
-J
-
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