Re: GWT MVP Frameworks
I forget to mention: Another intresting MVP framework is * Nalu: https://github.com/NaluKit/nalu and * Domino-mvp: https://github.com/DominoKit/domino-mvp -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit/46d6b458-196c-4785-9ba3-b955aa7b1e42%40googlegroups.com.
Re: GWT MVP Frameworks
I forget to mention: Another intresting MVP framework is Nalu: https://github.com/NaluKit/nalu -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/google-web-toolkit/63d2bf9c-44cd-4e7f-97ef-c43d9238569b%40googlegroups.com.
Re: GWT MVP Frameworks
I am one of the contributors of mvp4g. Yeah, that's right, mvp4g uses GIN. That's something I don't like, but trying to remove GIN is a breaking change. So we decided, as we startet with mvp4g2, to keep the numbers of dependencies small. mvp4g2 only uses Elemental 2 (Place management). It does not a have a dependecy to GWT! We replace the generators with APT. So, I would say, once it is ready to go, it should work with j2cl. Am Freitag, 13. Oktober 2017 16:00:57 UTC+2 schrieb hy: > > Is anyone using any GWT MVP based framework? > > We have been using GWTP, however the development on it seems to be stalled > and it still depends on GIN, which is also not under active development. > > GWTP is extremely powerful, however a lack of investment in it recently > has been concerning for us and we would like to be sure that our app is > future compatible. > > So, is there any other framework anyone is using out there that works like > GWTP and would take minimum transition (from GIN to Dagger, etc.); and has > a future compatibility (annotation processing, raw HTML, etc.). > -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
Re: GWT MVP Frameworks
https://github.com/Axellience/vue-gwt Vue+Gwt On Fri, Oct 13, 2017 at 9:09 PM, hy <harsh.de...@gmail.com> wrote: > Errai Framework is awesome, and we are using parts of it (like jaxrs); > however its too much focussed on javaee specific development (which is > great btw but too heavy for general and ever-evolving use-cases and has a > steep learning curve viz. custom CDI/IOC). > mvp4g > <https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fmvp4g%2Fmvp4g=D=1=AFQjCNFZVdRFuONp-UOuqjqn34NLz-YTdg> > again > uses GIN. > > Also, IMO JS frameworks like vue, react or polymer are very good for > creating isolated custom components and rendering HTML. > However for MVP/data-flow/binding/architecture they might not be the > ideal solution (other than if you are going to fully commit to them for > future use and as we all know there is a new js framework every month > deprecating the old one). > > Vanilla js (which in this case cross-compiled by the awesome GWT > compiler), is the path we would want to take. > Still open to other suggestions. > > > On Friday, October 13, 2017 at 10:28:16 AM UTC-4, DavidN wrote: >> >> I'm also depending on GWTP for my projects. It would be nice if it >> somehow got migrated to Dagger, but I guess the company behind it stopped >> doing GWT work. >> >> I'm considering moving to a mix of GWT with Vue.js in combination with >> Vue-routing. >> >> >> On Fri, Oct 13, 2017 at 4:14 PM Subhrajyoti Moitra <subhra...@gmail.com> >> wrote: >> >>> U can try http://erraiframework.org/ or https://github.com/mvp4g/mvp4g >>> as alternatives. >>> >>> On Fri, Oct 13, 2017 at 7:30 PM, hy <harsh...@gmail.com> wrote: >>> >>>> Is anyone using any GWT MVP based framework? >>>> >>>> We have been using GWTP, however the development on it seems to be >>>> stalled and it still depends on GIN, which is also not under active >>>> development. >>>> >>>> GWTP is extremely powerful, however a lack of investment in it recently >>>> has been concerning for us and we would like to be sure that our app is >>>> future compatible. >>>> >>>> So, is there any other framework anyone is using out there that works >>>> like GWTP and would take minimum transition (from GIN to Dagger, etc.); and >>>> has a future compatibility (annotation processing, raw HTML, etc.). >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "GWT Users" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to google-web-toolkit+unsubscr...@googlegroups.com. >>>> To post to this group, send email to google-we...@googlegroups.com. >>>> Visit this group at https://groups.google.com/group/google-web-toolkit. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "GWT Users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to google-web-toolkit+unsubscr...@googlegroups.com. >>> To post to this group, send email to google-we...@googlegroups.com. >>> Visit this group at https://groups.google.com/group/google-web-toolkit. >>> For more options, visit https://groups.google.com/d/optout. >>> >> -- > You received this message because you are subscribed to the Google Groups > "GWT Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to google-web-toolkit+unsubscr...@googlegroups.com. > To post to this group, send email to google-web-toolkit@googlegroups.com. > Visit this group at https://groups.google.com/group/google-web-toolkit. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
Re: GWT MVP Frameworks
Errai Framework is awesome, and we are using parts of it (like jaxrs); however its too much focussed on javaee specific development (which is great btw but too heavy for general and ever-evolving use-cases and has a steep learning curve viz. custom CDI/IOC). mvp4g <https://www.google.com/url?q=https%3A%2F%2Fgithub.com%2Fmvp4g%2Fmvp4g=D=1=AFQjCNFZVdRFuONp-UOuqjqn34NLz-YTdg> again uses GIN. Also, IMO JS frameworks like vue, react or polymer are very good for creating isolated custom components and rendering HTML. However for MVP/data-flow/binding/architecture they might not be the ideal solution (other than if you are going to fully commit to them for future use and as we all know there is a new js framework every month deprecating the old one). Vanilla js (which in this case cross-compiled by the awesome GWT compiler), is the path we would want to take. Still open to other suggestions. On Friday, October 13, 2017 at 10:28:16 AM UTC-4, DavidN wrote: > > I'm also depending on GWTP for my projects. It would be nice if it somehow > got migrated to Dagger, but I guess the company behind it stopped doing GWT > work. > > I'm considering moving to a mix of GWT with Vue.js in combination with > Vue-routing. > > > On Fri, Oct 13, 2017 at 4:14 PM Subhrajyoti Moitra <subhra...@gmail.com > > wrote: > >> U can try http://erraiframework.org/ or https://github.com/mvp4g/mvp4g >> as alternatives. >> >> On Fri, Oct 13, 2017 at 7:30 PM, hy <harsh...@gmail.com > >> wrote: >> >>> Is anyone using any GWT MVP based framework? >>> >>> We have been using GWTP, however the development on it seems to be >>> stalled and it still depends on GIN, which is also not under active >>> development. >>> >>> GWTP is extremely powerful, however a lack of investment in it recently >>> has been concerning for us and we would like to be sure that our app is >>> future compatible. >>> >>> So, is there any other framework anyone is using out there that works >>> like GWTP and would take minimum transition (from GIN to Dagger, etc.); and >>> has a future compatibility (annotation processing, raw HTML, etc.). >>> >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "GWT Users" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to google-web-toolkit+unsubscr...@googlegroups.com >>> . >>> To post to this group, send email to google-we...@googlegroups.com >>> . >>> Visit this group at https://groups.google.com/group/google-web-toolkit. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "GWT Users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to google-web-toolkit+unsubscr...@googlegroups.com . >> To post to this group, send email to google-we...@googlegroups.com >> . >> Visit this group at https://groups.google.com/group/google-web-toolkit. >> For more options, visit https://groups.google.com/d/optout. >> > -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
Re: GWT MVP Frameworks
I'm also depending on GWTP for my projects. It would be nice if it somehow got migrated to Dagger, but I guess the company behind it stopped doing GWT work. I'm considering moving to a mix of GWT with Vue.js in combination with Vue-routing. On Fri, Oct 13, 2017 at 4:14 PM Subhrajyoti Moitra <subhrajyo...@gmail.com> wrote: > U can try http://erraiframework.org/ or https://github.com/mvp4g/mvp4g as > alternatives. > > On Fri, Oct 13, 2017 at 7:30 PM, hy <harsh.de...@gmail.com> wrote: > >> Is anyone using any GWT MVP based framework? >> >> We have been using GWTP, however the development on it seems to be >> stalled and it still depends on GIN, which is also not under active >> development. >> >> GWTP is extremely powerful, however a lack of investment in it recently >> has been concerning for us and we would like to be sure that our app is >> future compatible. >> >> So, is there any other framework anyone is using out there that works >> like GWTP and would take minimum transition (from GIN to Dagger, etc.); and >> has a future compatibility (annotation processing, raw HTML, etc.). >> >> -- >> You received this message because you are subscribed to the Google Groups >> "GWT Users" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to google-web-toolkit+unsubscr...@googlegroups.com. >> To post to this group, send email to google-web-toolkit@googlegroups.com. >> Visit this group at https://groups.google.com/group/google-web-toolkit. >> For more options, visit https://groups.google.com/d/optout. >> > > -- > You received this message because you are subscribed to the Google Groups > "GWT Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to google-web-toolkit+unsubscr...@googlegroups.com. > To post to this group, send email to google-web-toolkit@googlegroups.com. > Visit this group at https://groups.google.com/group/google-web-toolkit. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
Re: GWT MVP Frameworks
U can try http://erraiframework.org/ or https://github.com/mvp4g/mvp4g as alternatives. On Fri, Oct 13, 2017 at 7:30 PM, hy <harsh.de...@gmail.com> wrote: > Is anyone using any GWT MVP based framework? > > We have been using GWTP, however the development on it seems to be stalled > and it still depends on GIN, which is also not under active development. > > GWTP is extremely powerful, however a lack of investment in it recently > has been concerning for us and we would like to be sure that our app is > future compatible. > > So, is there any other framework anyone is using out there that works like > GWTP and would take minimum transition (from GIN to Dagger, etc.); and has > a future compatibility (annotation processing, raw HTML, etc.). > > -- > You received this message because you are subscribed to the Google Groups > "GWT Users" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to google-web-toolkit+unsubscr...@googlegroups.com. > To post to this group, send email to google-web-toolkit@googlegroups.com. > Visit this group at https://groups.google.com/group/google-web-toolkit. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
GWT MVP Frameworks
Is anyone using any GWT MVP based framework? We have been using GWTP, however the development on it seems to be stalled and it still depends on GIN, which is also not under active development. GWTP is extremely powerful, however a lack of investment in it recently has been concerning for us and we would like to be sure that our app is future compatible. So, is there any other framework anyone is using out there that works like GWTP and would take minimum transition (from GIN to Dagger, etc.); and has a future compatibility (annotation processing, raw HTML, etc.). -- You received this message because you are subscribed to the Google Groups "GWT Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at https://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
GWT MVP and UiBinder Question
Hello, I read the documentation of MVP and i have a question about UiBinder ClickListener. Is it make sense if i define the ClickListener in the UiBinder java file like in the docs, which in turn call the presenter.OnItemClicked() or i define the Clicklistener in Presenter where all the logic is and from the UiBinder java, i just define methods which return only the button for example, and in the Presenter i call those methods and define the ClickListener for that button? So in the UiBinder java file i only have @UiField and a couple methods which returns those UiFIelds. Thank you! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
Re: GWT MVP and UiBinder Question
This is how we do it. Easy to understand. Easy to maintain https://www.youtube.com/watch?v=kilmaSRq49g On 28 August 2015 at 12:43, Abel Oszwald oszwalda...@gmail.com wrote: Hello, I read the documentation of MVP and i have a question about UiBinder ClickListener. Is it make sense if i define the ClickListener in the UiBinder java file like in the docs, which in turn call the presenter.OnItemClicked() or i define the Clicklistener in Presenter where all the logic is and from the UiBinder java, i just define methods which return only the button for example, and in the Presenter i call those methods and define the ClickListener for that button? So in the UiBinder java file i only have @UiField and a couple methods which returns those UiFIelds. Thank you! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout. -- Alain Ekambi Co-Founder Ahomé Innovation Technologies http://www.ahome-it.com/ http://ahome-it.com/ -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
How to do validations in GWT MVP Pattern
I've developed a gwt application using MVP pattern ( View, Presenter). I need to add validation to my application but some stackoverflow links http://stackoverflow.com/questions/5655775/tutorial-on-setting-up-gwt-validation-framework-for-a-simple-appsays that gwt mvp cannot have validations framework. I'm totally blown out.. i mean there has to be some way. Could someone please show me some tutorials or examples on how I can implement validations in a gwt applicaitons with mvp pattern. Thanks in advance... -- Thanks and regards May God Bless us! *AkH!L.* *http://akhilspassion.blogspot.com http://akhilspassion.blogspot.com/* -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
Re: How to do validations in GWT MVP Pattern
GWT supports/emulates JSR 303 (Bean Validation) on the client: http://www.gwtproject.org/doc/latest/DevGuideValidation.html -- J. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
Re: How to do validations in GWT MVP Pattern
Slightly off topic, but do you know if the hibernate-validation support will be upgraded to version hibernate validator 5? hibernate-validator-4.1.0.Final.jar requires on an old slf4j, and it plays a bit of havoc when including it in projects that require modern sl4j. On Monday, February 10, 2014 11:17:04 AM UTC+2, Jens wrote: GWT supports/emulates JSR 303 (Bean Validation) on the client: http://www.gwtproject.org/doc/latest/DevGuideValidation.html -- J. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
Re: How to do validations in GWT MVP Pattern
Yeah I have it working like that already, but it's still unfortunate. Maybe the best long term bet is to not use JSR 303 at all? It adds a bit more boilerplate code though. On Mon, Feb 10, 2014 at 3:51 PM, Jens jens.nehlme...@gmail.com wrote: Slightly off topic, but do you know if the hibernate-validation support will be upgraded to version hibernate validator 5? hibernate-validator-4.1.0.Final.jar requires on an old slf4j, and it plays a bit of havoc when including it in projects that require modern sl4j. I don't think anyone is working on it, see: https://code.google.com/p/google-web-toolkit/issues/detail?id=7661 . However you can solve your issue by creating separate projects for client and server side which is kind of a good practice anyways. That way server libs do not interference with client libs. -- J. -- You received this message because you are subscribed to a topic in the Google Groups Google Web Toolkit group. To unsubscribe from this topic, visit https://groups.google.com/d/topic/google-web-toolkit/Vl0AFw486Tw/unsubscribe . To unsubscribe from this group and all its topics, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
Re: How to do validations in GWT MVP Pattern
On Monday, February 10, 2014 3:03:32 PM UTC+1, RyanZA wrote: Yeah I have it working like that already, but it's still unfortunate. Maybe the best long term bet is to not use JSR 303 at all? It adds a bit more boilerplate code though. No one maintains JSR 303 emulation; so if you're not ready to contribute to it, not using it might be safer (I'd prefer you use and contribute to it though :) ) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
Using Smart GWT in GWT MVP framework with maven
Hi, Currently there is a requirement in our project for drag and drop feature in the tree format. So we are planning to use smart GWT. But when i include smart gwt dependencies in the pom.xml and start the project in jetty using mvn run. The application is throwing error in GWT GIN injector,but i have not used any smart gwt wigedt in our project just i have added the dependencies in the pom.xml i don't know why it is getting failed. if i remove the dependencies the application is loading properly. Can anyone advise me that where iam missing something or any other example to use the smart gwt with the mvp + maven . Thanks, Karthik -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/3M1dQg8MncoJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Using Smart GWT in GWT MVP framework with maven
Please input the pom.xml of your project. Em sexta-feira, 21 de setembro de 2012 02h56min54s UTC-3, karthikeyan p escreveu: Hi, Currently there is a requirement in our project for drag and drop feature in the tree format. So we are planning to use smart GWT. But when i include smart gwt dependencies in the pom.xml and start the project in jetty using mvn run. The application is throwing error in GWT GIN injector,but i have not used any smart gwt wigedt in our project just i have added the dependencies in the pom.xml i don't know why it is getting failed. if i remove the dependencies the application is loading properly. Can anyone advise me that where iam missing something or any other example to use the smart gwt with the mvp + maven . Thanks, Karthik -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/HItbdw2JOoIJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP Architecture
I don't know if i am missing something, but, why yo don't create a
clientFactory in order to get the View?
In that way you only create the view once and you avoid the problem of
having multiple handlers attached.
2012/9/14 Aryan saurabh.bl...@gmail.com
On 14 Sep, 14:21, stuckagain david.no...@gmail.com wrote:
Why does the view need to be a singleton ?
I guess why I am having view as singleton is having better performance
as I see views are expensive to create.
Not creating em everytime saves operation deep down like
Document.create - appendChild. and so the DOM manipulation
that saves time.
Anyway, when you are done with the presenter, then you need to tell it
so.
In that case it can unregister any installed handlers.
David
On Thursday, September 13, 2012 8:09:30 PM UTC+2, Aryan wrote:
Hi all,
lets look at the code:
public class MyView implements IMyView {
Button click;
.
public HasClickHandlers getClick(){
return click;
}
}
public class MyPresenter {
public interface IMyView {
public HasClickHandlers getClick();
}
private IMyView view;
public MyPresenter(IMyView view){
this.view = view;
bind();
}
private void bind(){
view.addClickHandler(new ClickHandler(){
public void onClick(ClickEvent e){
Window.alert(heeo);
}
}//binds end
}// class ends
//(We are not using Activities or any MVP framework)
ok tats it. Now in applicaton the view is singleton. but the presenter
are
not, so they are made as and when needed like :
MyPresenter p = new MyPresenter(view); //view is singleton throughout
the
application; assume getting it by some factory
Now suppose after a while if I have created *10 MyPresenter *instance
that will add *10 clickHandler *to button c*lick . So one click event
will be handled 10 times by 10 different handlers.*
**
I can see here it as happening when click the button I get 10 times
alert
window.
So where I misunderstood the MVP architecture, what I am missing.
please help
**
Thanks in advance.- Hide quoted text -
- Show quoted text -
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Re: GWT MVP Architecture
Why does the view need to be a singleton ?
Anyway, when you are done with the presenter, then you need to tell it so.
In that case it can unregister any installed handlers.
David
On Thursday, September 13, 2012 8:09:30 PM UTC+2, Aryan wrote:
Hi all,
lets look at the code:
public class MyView implements IMyView {
Button click;
.
public HasClickHandlers getClick(){
return click;
}
}
public class MyPresenter {
public interface IMyView {
public HasClickHandlers getClick();
}
private IMyView view;
public MyPresenter(IMyView view){
this.view = view;
bind();
}
private void bind(){
view.addClickHandler(new ClickHandler(){
public void onClick(ClickEvent e){
Window.alert(heeo);
}
}//binds end
}// class ends
//(We are not using Activities or any MVP framework)
ok tats it. Now in applicaton the view is singleton. but the presenter are
not, so they are made as and when needed like :
MyPresenter p = new MyPresenter(view); //view is singleton throughout the
application; assume getting it by some factory
Now suppose after a while if I have created *10 MyPresenter *instance
that will add *10 clickHandler *to button c*lick . So one click event
will be handled 10 times by 10 different handlers.*
**
I can see here it as happening when click the button I get 10 times alert
window.
So where I misunderstood the MVP architecture, what I am missing.
please help
**
Thanks in advance.
--
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Re: GWT MVP Architecture
On 14 Sep, 14:21, stuckagain david.no...@gmail.com wrote:
Why does the view need to be a singleton ?
I guess why I am having view as singleton is having better performance
as I see views are expensive to create.
Not creating em everytime saves operation deep down like
Document.create - appendChild. and so the DOM manipulation
that saves time.
Anyway, when you are done with the presenter, then you need to tell it so.
In that case it can unregister any installed handlers.
David
On Thursday, September 13, 2012 8:09:30 PM UTC+2, Aryan wrote:
Hi all,
lets look at the code:
public class MyView implements IMyView {
Button click;
.
public HasClickHandlers getClick(){
return click;
}
}
public class MyPresenter {
public interface IMyView {
public HasClickHandlers getClick();
}
private IMyView view;
public MyPresenter(IMyView view){
this.view = view;
bind();
}
private void bind(){
view.addClickHandler(new ClickHandler(){
public void onClick(ClickEvent e){
Window.alert(heeo);
}
}//binds end
}// class ends
//(We are not using Activities or any MVP framework)
ok tats it. Now in applicaton the view is singleton. but the presenter are
not, so they are made as and when needed like :
MyPresenter p = new MyPresenter(view); //view is singleton throughout the
application; assume getting it by some factory
Now suppose after a while if I have created *10 MyPresenter *instance
that will add *10 clickHandler *to button c*lick . So one click event
will be handled 10 times by 10 different handlers.*
**
I can see here it as happening when click the button I get 10 times alert
window.
So where I misunderstood the MVP architecture, what I am missing.
please help
**
Thanks in advance.- Hide quoted text -
- Show quoted text -
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GWT MVP Architecture
Hi all,
lets look at the code:
public class MyView implements IMyView {
Button click;
.
public HasClickHandlers getClick(){
return click;
}
}
public class MyPresenter {
public interface IMyView {
public HasClickHandlers getClick();
}
private IMyView view;
public MyPresenter(IMyView view){
this.view = view;
bind();
}
private void bind(){
view.addClickHandler(new ClickHandler(){
public void onClick(ClickEvent e){
Window.alert(heeo);
}
}//binds end
}// class ends
//(We are not using Activities or any MVP framework)
ok tats it. Now in applicaton the view is singleton. but the presenter are
not, so they are made as and when needed like :
MyPresenter p = new MyPresenter(view); //view is singleton throughout the
application; assume getting it by some factory
Now suppose after a while if I have created *10 MyPresenter *instance that
will add *10 clickHandler *to button c*lick . So one click event will be
handled 10 times by 10 different handlers.*
**
I can see here it as happening when click the button I get 10 times alert
window.
So where I misunderstood the MVP architecture, what I am missing.
please help
**
Thanks in advance.
--
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Re: GWT MVP Architecture
As your view is singleton you have to tell the presenter that it should
detach itself from the view, e.g. by introducing a public
Presenter.unbind() method. You then have to call that unbind() method
before you throw away your presenter instance. Your presenter needs to
remember the HandlerRegistration instances so unbind() can use them to
remove the handlers from the view.
Alternative: Let the view know its presenter and let it delegate to the
presenter once an event has occurred. If the view does not know any
presenter, nothing will happen. That way you can swap presenters or remove
the presenter by calling view.setPresenter(null).
public MyView extends Composite implements View {
Presenter presenter = ...;
Button createNoteButton = ...;
public void setPresenter(Presenter p) {
presenter = p;
}
@UiHandler(createNoteButton) //if you use UiBinder. Otherwise you have
to register the ClickHandler yourself in the view.
void onClick(ClickEvent event) {
if(presenter != null) { presenter.onCreateNote() };
}
}
-- J.
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Re: GWT MVP Multiple Areas Doubt
On Dec 3, 9:53 pm, Thomas Broyer t.bro...@gmail.com wrote: If your 3 parts are tightly linked (you have different actions and different filters for each different main content), given that they're displayed next to each other, then you only need one activity. I'd however try to code them as three distinct components (widgets) linked only through events (true events with event-handlers using addHandler, or simply using callbacks). So, for example I will have to create with (or without) UIBinder a widget for every actions menu or filters menu that I need (dispite of reusing anyone when I could). For example UsersListActions widget and UsersListsFilter widget. On more doubt. Wich one would be the way to communicate between this widgets (actions and filters panels) and the current presenter (in my case, the current activity)? That should make it easier maintain the whole thing (otherwise your main content with actions and filters could grow and become unmaintainable) but more importantly, if you think you could visually separate them later, that would make it easier (in that event, route the events through the event bus and you're done). It would make it possible/easier to reuse one part in different views (e.g. if most/all lists have the same set of actions). I'm afraid there's no one size fits all approach; it (in part) depends how you imagine your app will evolve. The whole idea of activities are to decouple things, it doesn't make sense for things that are tightly coupled (unless they're separated visually into non-adjacent areas). The idea is that, for instance, a main menu, a list of things and details about one thing could all appear on the screen at the same time on a desktop, but appear as sequential screens on a smart phone (and using MVP within an activity, you can in addition decouple the view –wide on a desktop, narrower on a smartphone– from the behavior) To me, however, your current design is clearly not the best (or i misunderstood it): why use MainDisplayFilters and MainDisplayActions as singletons that you clear/populate each time instead of simply using distinct instances in each view? I did it in this way because I don't know how can I tell to my presenter from some widget to perform some action (ie: delete some users) or how to communicate to the vie. For example, on the start method of UserListActivity I make a rpc to load the users and populate my UsersListViewImpl. IE: How can I tell to my UsersListsActions widget that there are n users? Or how can I know from my UsersListsActions widget how many rows are selected in my UsersListViewImpl? How can I tell from my UsersListsActions to my UserListPresenter to delete some users? Please sorry if I am asking some dumb question because my low level of knowlegde :) I was reading and reading GWT MVP but I am just a little dizzy. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP Multiple Areas Doubt
On Sunday, December 4, 2011 8:31:48 PM UTC+1, vehdra music wrote: On Dec 3, 9:53 pm, Thomas Broyer t.br...@gmail.com wrote: If your 3 parts are tightly linked (you have different actions and different filters for each different main content), given that they're displayed next to each other, then you only need one activity. I'd however try to code them as three distinct components (widgets) linked only through events (true events with event-handlers using addHandler, or simply using callbacks). So, for example I will have to create with (or without) UIBinder a widget for every actions menu or filters menu that I need (dispite of reusing anyone when I could). For example UsersListActions widget and UsersListsFilter widget. Hard (impossible?) to answer without knowing more about your specific needs, but do the Simplest Thing That Could Possibly Work™ On more doubt. Wich one would be the way to communicate between this widgets (actions and filters panels) and the current presenter (in my case, the current activity)? Your widgets are part of the view, and your presenter is, well, the presenter for the view (you can segregate the widgets behind sub interfaces). That should make it easier maintain the whole thing (otherwise your main content with actions and filters could grow and become unmaintainable) but more importantly, if you think you could visually separate them later, that would make it easier (in that event, route the events through the event bus and you're done). It would make it possible/easier to reuse one part in different views (e.g. if most/all lists have the same set of actions). I'm afraid there's no one size fits all approach; it (in part) depends how you imagine your app will evolve. The whole idea of activities are to decouple things, it doesn't make sense for things that are tightly coupled (unless they're separated visually into non-adjacent areas). The idea is that, for instance, a main menu, a list of things and details about one thing could all appear on the screen at the same time on a desktop, but appear as sequential screens on a smart phone (and using MVP within an activity, you can in addition decouple the view –wide on a desktop, narrower on a smartphone– from the behavior) To me, however, your current design is clearly not the best (or i misunderstood it): why use MainDisplayFilters and MainDisplayActions as singletons that you clear/populate each time instead of simply using distinct instances in each view? I did it in this way because I don't know how can I tell to my presenter from some widget to perform some action (ie: delete some users) or how to communicate to the vie. For example, on the start method of UserListActivity I make a rpc to load the users and populate my UsersListViewImpl. IE: How can I tell to my UsersListsActions widget that there are n users? Or how can I know from my UsersListsActions widget how many rows are selected in my UsersListViewImpl? How can I tell from my UsersListsActions to my UserListPresenter to delete some users? What I understood is that you're using singletons and when you need them, you tell them forget everything, and know this is what you should know/do. I'm just saying that instead of singletons and forget everything, you should create instances that the activity/view *owns* and are initialized once and for all. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/pNLumTohzFwJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
GWT MVP Multiple Areas Doubt
In my app I have layout like gmail. A header, a left panel (with a menu), a main content area (with a header and a content area). Example: --- |username logout| -- | aside | add, delete, other action| | menu | | || filter by a, b, c | || | || maincontent (ie: celltable) | || | || | || | || | || | --- Aside Menu will be created after the user logins and remains during the entire session. The same for the header. Now, my doubt is about the main content area (actions panel, filters panel and main content panel). What I did to get this layout working is: 1. I created two widgets, MainDisplayFilters and MainDisplayActions. 2. I created an AppLayout and injected those widgets. 3. In every one of my views, for example UsersListView, I inject MainDisplayFilters and MainDisplayActions, clear the widgets, and add to the widgets the buttons for the actions and the filters that I need in the current activity. I really DONT like this approach :) but I can't figure how can I do it in a better way. Should I create an ActionsActivityMapper and a FiltersActivityMapper, and diferent activities / views for this panels for every place that the user goes? For example, if the user goes to UserListPlace, load the UserListActionsActvity (with it owns view) and the UserListFiltersActivity? It doesn't make many sense, I think. I was reading about Thomas Broyer post http://tbroyer.posterous.com/gwt-21-activities-nesting-yagni but actions panels and filters panels are in someway connected to the maincontent activity, that's why I believe that I don't need more than one ActivityMapper. I neither don't like the idea to have the actions panel + the filters panel + content panel all in one view, beacause if in the future I want to change something in the layout (for example add a pagination control on the right of my actions panel), I would have to do it in every view. Wich one would be the best way to handle a layout like this? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP Multiple Areas Doubt
If your 3 parts are tightly linked (you have different actions and different filters for each different main content), given that they're displayed next to each other, then you only need one activity. I'd however try to code them as three distinct components (widgets) linked only through events (true events with event-handlers using addHandler, or simply using callbacks). That should make it easier maintain the whole thing (otherwise your main content with actions and filters could grow and become unmaintainable) but more importantly, if you think you could visually separate them later, that would make it easier (in that event, route the events through the event bus and you're done). It would make it possible/easier to reuse one part in different views (e.g. if most/all lists have the same set of actions). I'm afraid there's no one size fits all approach; it (in part) depends how you imagine your app will evolve. The whole idea of activities are to decouple things, it doesn't make sense for things that are tightly coupled (unless they're separated visually into non-adjacent areas). The idea is that, for instance, a main menu, a list of things and details about one thing could all appear on the screen at the same time on a desktop, but appear as sequential screens on a smart phone (and using MVP within an activity, you can in addition decouple the view –wide on a desktop, narrower on a smartphone– from the behavior) To me, however, your current design is clearly not the best (or i misunderstood it): why use MainDisplayFilters and MainDisplayActions as singletons that you clear/populate each time instead of simply using distinct instances in each view? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/bqGmcv_OB8EJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: A class diagram relating the core GWT MVP model
Hello Daniel, thanks for sharing! Your very neat diagram inspired me to rework the layout and clarify some things in my own depiction. About your generator framework: Isn't that what Spring Roo is all about? - I have to admit, I am no real fan of generator solutions. Often they are only good for bootstrapping or they break, if you stray from the default (read expected) path of the underlying framework. Best regards, Achim. On 18 Okt., 17:38, Daniel Dietrich cafeb...@googlemail.com wrote: Hi Hans-Joachim, as Jens mentioned, you find my post here:http://goo.gl/a6db2 Here is a direct link to the drawing:http://goo.gl/u7Ntq The activity places vs. mvp question arises on and on. What gwt gives to us is a toolkit - but not a framework. There are lot of frameworks out there which give us a solution for making our apps testable or add browser history support. Currently I'm working on a generator which automagically generates all the technical boilerplate code on base of a simple description of the application to have this architecture out of the box. I see me as engineer who creates a factory for developers. Each developer should not concern about how to apply architectural design patterns. A developer should implement business logic, not technical boilerplate. I started an example generator for JPA + Request Factory here:https://github.com/danieldietrich/xtext-javatools(running but work in progress) It needs this plugin to be installed:https://github.com/danieldietrich/xtext-protectedregions See the README.textile files for more information... Next step is a generator for the ui stuff... Greetz Daniel -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
A class diagram relating the core GWT MVP model
Hi everybody! I like the power of the GWT MVP model. But it is quite a challenge to wrap your head around the complex class hierarchy orbiting the core concepts of activities, views and places. After falling through some unexpected trap doors (e.g. ResettableEventBus), I decided to create a class diagram of the core classes of the framework along with the main classes implemented by the framework user. You can see a PDF rendition of the model here: http://minutefforts.com/blog/wp-content/uploads/2011/10/gwt-mvp-classes.pdf What do you think? Am I missing some important stuff? Anything wrong? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: A class diagram relating the core GWT MVP model
ActivityManager uses (1..1) AcceptsOneWidget (interface). And AcceptsOneWidget should be implemented by MyDisplayAreaWidget (which is in most cases a SimplePanel or SimpleLayoutPanel). Then MyContainerWidget embeds 1..n AcceptsOneWidget / MyDisplayAreaWidget. So MyContainerWidget is the root that contains 1..n AcceptsOneWidget implementations (= display areas) and each AcceptsOneWidget is assigned to its own ActivityManager (so you have more than one ActivityManager if you have more than one display area). I think a while ago someone also posted a class diagram for activity/places. Maybe you can find it via search. But I am not quite sure if it has been posted in this group or in the Google Web Toolkit Contributors group. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/WOng0mZoOiMJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Crossposted from GPE group (Tooling support to handle GWT MVP boilerplate)
Posting this on this group to reach the GWT community as well. I was wondering if there are any plans to add better tooling support to generate the boilerplate interfaces/classes to build a use case using MVP approach. One pain point i have been hearing a lot in my discussion with developers is the amount of boilerplate code needed to get something going. I believe support from GPE to have a right click menu item saying add use case, which generates a corresponding presenter interface, implementation, a uibinder.xml file with corresponding java class and interface will help ease some of the pain. Thoughts? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
upload file with GWT (MVP pattern)
i want to add upload file on my application, i implemented it like you did, but it doesnt work, when i debug i found that items is null. PS: i use MVP pattern , so is there another way to implement upload file. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: upload file with GWT (MVP pattern)
Did you call setName(String) on the FileUpload object? If you do not, org.apache.commons.fileupload.servlet.ServletFileUpload won't list your field in parseRequest(HttpServletRequest). On Aug 15, 8:47 am, GWT and Web Services loubar.bil...@gmail.com wrote: i want to add upload file on my application, i implemented it like you did, but it doesnt work, when i debug i found that items is null. PS: i use MVP pattern , so is there another way to implement upload file. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Can I/Should I test my *ServiceImpl class? (GAE+GWT+MVP)
Hey coders, I wonder if anyone can help me. I'm still learning GAE+GWT and trying to get into unit testing as I go along. I have finally managed to get my head around MVP and have written some basic tests to test my presenters, using mock objects for the view and server-side service. All good. My question is this: *How can I test whether my RPC calls are working? Should I even be trying to test them?* For example, in my ServiceImpl class I have a function fillDatastore() that populates it with some dummy data - I would like to be able to run this on the datastore stub, using LocalServiceTestHelper, a bit like this test, but using my server side code instead of putting the actual insert code into the test itself: http://code.google.com/appengine/docs/java/tools/localunittesting.html#Writing_Datastore_and_Memcache_Tests As far as I understand it - I can't use GWT.create() to make a real rpc service in a TestCase (have to mock it), and I can't create a datastore stub inside a GwtTest. If anyone can point me in the right direction, tell me where I'm confused I would appreciate it greatly. Cheers, Drew -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/ZSdzjFFXD3kJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT, MVP, GIN, code splitting?
First of all thank you for your reply:) In fact I'm a beginner and I just discovered GWT and i dont understand many pattern like the activity pattern but in regard to mvp im using the GWT-Presenter Framework. brief the binding is done in this way bindPresenter ( Presenter.class, Presenter.Display.class, View.class); what should i do to optimize my code? my binding code should it be something like this? bind (Presenter.class). in (Singleton.class); bind (Presenter.Display.class). toProvider (asyncProvider); then have you an example of asynchronous provider and what do you think about GWT Presenter is it was the right solution? or i have to change to another framework? if you were me what would you have chosen? On 16 juin, 17:14, Thomas Broyer t.bro...@gmail.com wrote: GIN's AsyncProvider might help. If you're using Activities, you can also put GWT.runAsync in your Activity's start() method. See alsohttp://code.google.com/p/google-web-toolkit/issues/detail?id=5129 Also, if you embraced asynchrony, adding GWT.runAsync around already-asynchronous operations shouldn't be an issue. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT, MVP, GIN, code splitting?
I don't know how they diverge, but GWT-Platform is originally a fork of GWT Presenter, and supports code splitting out of the box with just a few annotations here and there: http://code.google.com/p/gwt-platform/ Hint: search for gwt-presenter on the project's home page. I never used either so i'm afraid I won't be of any help. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/400vTsoqO6YJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP GIN - problem with nested views and presenters
Are you trying to say that I make those views as singletons? The problem is that I would like to reuse one widget on multiple places. If I go with singletons I must create classes for every widget I use (they will extend some class that has mutual functionality)? On 16 lip, 02:27, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: The problem is that we get two objects of the sub-widget class becouse this widgets aren't singletons. 2011/6/15 ricu marko.c...@gmail.com Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP GIN - problem with nested views and presenters
No, I don't say that. I say your problem about multiple instance is becouse in each @Inject you have a new instance. 2011/6/16 ricu marko.c...@gmail.com Are you trying to say that I make those views as singletons? The problem is that I would like to reuse one widget on multiple places. If I go with singletons I must create classes for every widget I use (they will extend some class that has mutual functionality)? On 16 lip, 02:27, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: The problem is that we get two objects of the sub-widget class becouse this widgets aren't singletons. 2011/6/15 ricu marko.c...@gmail.com Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP GIN - problem with nested views and presenters
Yes, but I have new instances because they are not singletons :). So to solve this issue I must make them singletons? If I do that then I can't reuse them across the application. Or can I? On 16 lip, 12:50, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: No, I don't say that. I say your problem about multiple instance is becouse in each @Inject you have a new instance. 2011/6/16 ricu marko.c...@gmail.com Are you trying to say that I make those views as singletons? The problem is that I would like to reuse one widget on multiple places. If I go with singletons I must create classes for every widget I use (they will extend some class that has mutual functionality)? On 16 lip, 02:27, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: The problem is that we get two objects of the sub-widget class becouse this widgets aren't singletons. 2011/6/15 ricu marko.c...@gmail.com Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP GIN - problem with nested views and presenters
If your widgets are reusable, if you create new instances there are not problem. Why you want to share instances? 2011/6/16 ricu marko.c...@gmail.com Yes, but I have new instances because they are not singletons :). So to solve this issue I must make them singletons? If I do that then I can't reuse them across the application. Or can I? On 16 lip, 12:50, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: No, I don't say that. I say your problem about multiple instance is becouse in each @Inject you have a new instance. 2011/6/16 ricu marko.c...@gmail.com Are you trying to say that I make those views as singletons? The problem is that I would like to reuse one widget on multiple places. If I go with singletons I must create classes for every widget I use (they will extend some class that has mutual functionality)? On 16 lip, 02:27, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: The problem is that we get two objects of the sub-widget class becouse this widgets aren't singletons. 2011/6/15 ricu marko.c...@gmail.com Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP GIN - problem with nested views and presenters
I don't want share instances through modules that is why i didn't make those view parts as singletons in the first place. But the view that is injected in the parent view and the view injected into it's presenter MUST be the same instance. But can you see what the problem is? If I don't share instances through modules (view's are not singletons) then I get two instances for the parent view and the presenter even though it must be the same instance. On 16 lip, 13:25, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: If your widgets are reusable, if you create new instances there are not problem. Why you want to share instances? 2011/6/16 ricu marko.c...@gmail.com Yes, but I have new instances because they are not singletons :). So to solve this issue I must make them singletons? If I do that then I can't reuse them across the application. Or can I? On 16 lip, 12:50, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: No, I don't say that. I say your problem about multiple instance is becouse in each @Inject you have a new instance. 2011/6/16 ricu marko.c...@gmail.com Are you trying to say that I make those views as singletons? The problem is that I would like to reuse one widget on multiple places. If I go with singletons I must create classes for every widget I use (they will extend some class that has mutual functionality)? On 16 lip, 02:27, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: The problem is that we get two objects of the sub-widget class becouse this widgets aren't singletons. 2011/6/15 ricu marko.c...@gmail.com Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are
Re: GWT MVP GIN - problem with nested views and presenters
Maybe, @Inject class MainWidget(SubWidget subwidget) . . @Inject class SubWidget(SubWidgetPresenter presenter) You can then inject eventBus into presenter and communicate with the MainWidget/Rest of the app. On Wed, Jun 15, 2011 at 12:58 PM, ricu marko.c...@gmail.com wrote: Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
GWT, MVP, GIN, code splitting?
How to minimize the amount of code downloaded initially by GWT app user's browser? Well, just wrap potentially big operations in a GWT.runAsync() call. However, since our application is using GWT best practices (dependency injection, MVP pattern), it’s not as straightforward as GWT doc describes. Could you please give me an idea on how to use code splitting in conjunction with GIN? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT, MVP, GIN, code splitting?
+1 2011/6/16 Ahmed ahmed.zar...@gmail.com How to minimize the amount of code downloaded initially by GWT app user's browser? Well, just wrap potentially big operations in a GWT.runAsync() call. However, since our application is using GWT best practices (dependency injection, MVP pattern), it’s not as straightforward as GWT doc describes. Could you please give me an idea on how to use code splitting in conjunction with GIN? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT, MVP, GIN, code splitting?
GIN's AsyncProvider might help. If you're using Activities, you can also put GWT.runAsync in your Activity's start() method. See also http://code.google.com/p/google-web-toolkit/issues/detail?id=5129 Also, if you embraced asynchrony, adding GWT.runAsync around already-asynchronous operations shouldn't be an issue. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/Qn41Ny1buFwJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT, MVP, GIN, code splitting?
Check out this issue (includes source code): http://code.google.com/p/google-web-toolkit/issues/detail?id=5129 If you followed the best practises you can easily hide your activities behind proxies that do the code splitting automatically. Best, Raphael On Thu, Jun 16, 2011 at 6:10 PM, Juan Pablo Gardella gardellajuanpa...@gmail.com wrote: +1 2011/6/16 Ahmed ahmed.zar...@gmail.com How to minimize the amount of code downloaded initially by GWT app user's browser? Well, just wrap potentially big operations in a GWT.runAsync() call. However, since our application is using GWT best practices (dependency injection, MVP pattern), it’s not as straightforward as GWT doc describes. Could you please give me an idea on how to use code splitting in conjunction with GIN? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP GIN - problem with nested views and presenters
Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP GIN - problem with nested views and presenters
The problem is that we get two objects of the sub-widget class becouse this widgets aren't singletons. 2011/6/15 ricu marko.c...@gmail.com Anybody? Maybe someone has the same architecture without GIN. What is your experience? On 13 lip, 21:16, ricu marko.c...@gmail.com wrote: Hi! We are usingGINin our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created usingGIN GINBinding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
GWT MVP GIN - problem with nested views and presenters
Hi! We are using GIN in our application which is constructed in MVP style. We tried to follow some best practices described in GWT pages and here in GWT group so we design the application in the following manner: 1) We have multiple main screens(pages) that have activities attached to them. They are build in MVP style where presenters are also activities. 2) Every main screen is a collection of some sub-widgets which can also be created from some other sub-sub-widgets, so you can say that we are nesting views and their presenters. 3) The main views are singletons. Our sub-widgets are not singletons because we are reusing them. 4) All of our presenters aren't singletons. 5) They are created using GIN GIN Binding example: bind(SubWidgetView.class).to(SubWidget.class); bind(MainWidgetView.class).to(MainWidget.class).in(Singleton.class); Injecting sub-widget into main widget through constructor example: @Inject public MainWidget(SubWidget widget1) Injecting sub-widget's interface into presenter through constructor example: @Inject public SubWidgetPresenter(SubWidgetView widget1) The problem is that we get two objects of the sub-widget class, one for injecting the into main widget and the other one for while injecting into it's presenter. The first one is shown on the screen but the other one is bind to the presenter. When presenter changes its view, it changes the view that was not bin to the main widget and we can't see anything. So our solution would be to create one sub-widget per main-widget but we don't know how to do it and if we do, we don't know how to inject that object of the sub-widget into the recreating presenter. Marko -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP how to map a Composite Place to its corresponding Activities
Hi zixzigma,
Use a separate ActivityManager and ActivityMapper for each panel. Each
ActivityMapper can return a different Activity mapped to the CompositePlace.
Have a look at slide 47 here:
http://www.slideshare.net/turbomanage/whats-new-in-gwt-22
HTH,
/dmc
On Tue, Nov 30, 2010 at 12:08 AM, zixzigma zixzi...@gmail.com wrote:
Hello Everyone,
Roo scaffolding creates ProxyPlace and ProxyListPlace.
ProxyPlace is good if we need to deal with one EntityProxy at a time.
in a more complex situation, where view might be consisted of multiple
panels, many EntitiyProxies might be needed to populate those panels,
and to make history/bookmark working those EntityProxies must be added
to to the history token.
MyCompositePlace extends Place {
EntityProxyIdFooEntityProxy firstEntityProxyId;
EntityProxyIdBarEntityProxy barEntityProxyId;
EntityProxyIdBazEntityProxy bazEntityProxyId;
//Tokenizer
}
and this composite place is used like this:
placeController.go(new MyCompositePlace( id1, id2, id3));
and we have to implement the Tokenizer, spliting the history token,
and processing etc
in ActivityMapper, there is a getActivity method
Activity getActivity(Place place)
in the case of CompositePlace, how can we decompose the Composite
Place into its places, and map them to corresponding activities ?
getActivity returns only one activity, but in the case of composite
place, we need to return for example 3 activities.
in short, how can we map a Composite Place to its corresponding
Activities ?
please help !
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R: GWT MVP how to map a Composite Place to its corresponding Activities
One way to go could be to return an instance of CompositeActivity that take the CompositePlace and manage the subplaces internally -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
Thanks for the vote of confidence, but let me suggest that some of the confusion around MVP results from overloading the term (I bear some of the blame here, sorry). Three key ideas of MVP proper are 1. Views are interfaces (so they can be tested without GWTTestCase, among other reasons) 2. Presenters are POJOs that contain no Widgets 3. Views and presenters refer to each other only via interfaces (and in the original style of MVP, a presenter may call methods on the view interface, but not the other way around) Ray Ryan's famous I/O talk in 09 also mentioned place/history management and the Command pattern, which are very useful ideas but not part of MVP proper. Various 3rd party MVP frameworks offered all these capabilities together as MVP and the GWT docs refer to Activities and Places as the MVP framework, but they're really not MVP proper, which has no doubt led to some confusion. GWT's Activities and Places offer place/history management, but require no View or Presenter classes so you are free to create your own or use one of the 3rd party frameworks for these. I'm sure the community will have further recommendations :-) HTH, /dmc On Thu, Apr 7, 2011 at 12:48 AM, -sowdri- sow...@gmail.com wrote: Better to use MVP with activities and places as suggested by official GWT team. Thanks, -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- David Chandler Developer Programs Engineer, Google Web Toolkit w: http://code.google.com/ b: http://googlewebtoolkit.blogspot.com/ t: @googledevtools -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
I don't think you can go wrong with using either gwt-platform or mvp4g. They're both really solid mvp frameworks. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
I'm also happy with GWT MVP as described here: http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
I found this mvp discussion to be the most value to me: http://jectbd.com/?p=1397 Barry -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
On Thursday, April 7, 2011 5:39:35 PM UTC+2, David Chandler (Google) wrote: Ray Ryan's famous I/O talk in 09 also mentioned place/history management and the Command pattern, which are very useful ideas but not part of MVP proper. Various 3rd party MVP frameworks offered all these capabilities together as MVP and the GWT docs refer to Activities and Places as the MVP framework, but they're really not MVP proper, which has no doubt led to some confusion. Thats why I would change the GWT docs as soon as time allows. Someone new to MVP and activity/places will definitely get the wrong idea of both and gets confused. There are many topics/posts like this one in this group. @Alex: As David points out, the MVP pattern has nothing in common with GWT's Place/History management framework (often referred to as GWT MVP). If you use GWT places/activities your app will gain bookmarkable urls that represent a place/application state and whenever such a url is visited a corresponding activity will be started. This activity is then responsible for attaching some UI/widgets to an area of your webpage. If this UI is complex and has user interaction elements then you could implement this UI with the MVP pattern to separate the UI from the logic that will be performed when the user interacts with this UI. And once you decide to use the MVP pattern then its in most cases easier to let the activity be the presenter. But its also possible to implement a separate presenter and let the activity hold a reference to it. J. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
Personally, I'm fairly new to GWT, and yes, the docs are pretty confusing, unhelpful, and inconsistent, and I'm not new to web frameworks. I wish I had taken down all the problems, contradictions, and lack of clarity that I noticed. Very strange for Google. Regarding MVP, I steer clear of Activities and Places because I think for more complicated UIs and nested views, etc., things become too messy and even impossible. They're too new and there isn't a single decent example that implements them. The updated Expenses sample app which uses Activities and Places -- and is shipped with GWT -- uses them but totally incorrectly in terms of MVP (tonnes of UI code in presenters, etc., if I recall). There's nothing wrong with do-it-your-own-way MVP as described in the two links at the top of: http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAndPlaces.html ... Trying to tie MVP with history and event management, etc, and everything else, is confusing for the beginner. The docs are not doing GWT any justice and if it hadn't got Google in the name I would have thought more than twice about adopting it. I'm not unhappy with my choice though, but I still feel the docs need a complete re-work. Slightly off topic, sorry. /rant On Apr 7, 11:36 pm, Jens jens.nehlme...@gmail.com wrote: On Thursday, April 7, 2011 5:39:35 PM UTC+2, David Chandler (Google) wrote: Ray Ryan's famous I/O talk in 09 also mentioned place/history management and the Command pattern, which are very useful ideas but not part of MVP proper. Various 3rd party MVP frameworks offered all these capabilities together as MVP and the GWT docs refer to Activities and Places as the MVP framework, but they're really not MVP proper, which has no doubt led to some confusion. Thats why I would change the GWT docs as soon as time allows. Someone new to MVP and activity/places will definitely get the wrong idea of both and gets confused. There are many topics/posts like this one in this group. @Alex: As David points out, the MVP pattern has nothing in common with GWT's Place/History management framework (often referred to as GWT MVP). If you use GWT places/activities your app will gain bookmarkable urls that represent a place/application state and whenever such a url is visited a corresponding activity will be started. This activity is then responsible for attaching some UI/widgets to an area of your webpage. If this UI is complex and has user interaction elements then you could implement this UI with the MVP pattern to separate the UI from the logic that will be performed when the user interacts with this UI. And once you decide to use the MVP pattern then its in most cases easier to let the activity be the presenter. But its also possible to implement a separate presenter and let the activity hold a reference to it. J. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
Nicely done, David. +1 On Thu, Apr 7, 2011 at 8:39 AM, David Chandler drfibona...@google.comwrote: Thanks for the vote of confidence, but let me suggest that some of the confusion around MVP results from overloading the term (I bear some of the blame here, sorry). Three key ideas of MVP proper are 1. Views are interfaces (so they can be tested without GWTTestCase, among other reasons) 2. Presenters are POJOs that contain no Widgets 3. Views and presenters refer to each other only via interfaces (and in the original style of MVP, a presenter may call methods on the view interface, but not the other way around) Ray Ryan's famous I/O talk in 09 also mentioned place/history management and the Command pattern, which are very useful ideas but not part of MVP proper. Various 3rd party MVP frameworks offered all these capabilities together as MVP and the GWT docs refer to Activities and Places as the MVP framework, but they're really not MVP proper, which has no doubt led to some confusion. GWT's Activities and Places offer place/history management, but require no View or Presenter classes so you are free to create your own or use one of the 3rd party frameworks for these. I'm sure the community will have further recommendations :-) HTH, /dmc On Thu, Apr 7, 2011 at 12:48 AM, -sowdri- sow...@gmail.com wrote: Better to use MVP with activities and places as suggested by official GWT team. Thanks, -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- David Chandler Developer Programs Engineer, Google Web Toolkit w: http://code.google.com/ b: http://googlewebtoolkit.blogspot.com/ t: @googledevtools -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
GWT MVP
I've been looking into GWT and MVP recently and to be honest I'm very confused. My project involves around 40 different pages / individual views, or whatever the correct terminology is. I've been reading tutorials that follow Model-View-Presenter and others that use Activities and Places. Which one should I be using? Many thanks, Alex -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
I think first you should read about gwt platform ( http://code.google.com/p/gwt-platform/) and google-gin ( http://code.google.com/p/google-gin/) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
On Wednesday, April 6, 2011 12:04:47 AM UTC+2, Alex wrote: Which one should I be using? You are maybe confused, because some terms are more theoretical (or abstract) and others are used in the Code. Also, there is not only one way to do MVP in GWT. You can check out mvp4g if it fits more your mental model. http://code.google.com/p/mvp4g/ http://code.google.com/p/mvp4g/ http://mvp4g.blogspot.com/2011/04/mvp-pattern-associated-with-event-bus.html H -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
No offense to the other posters, but I wouldn't go anywhere near platform or mvp4g right off. Just confuses the issue. Having recently been where you're at, I'd go here first: http://martinfowler.com/eaaDev/uiArchs.html. That should shed more light on why MVP is of interest period. Humble View is definitely an item to read. I had to implement The Humble Dialog Box with gwt-presenter and all unit/integration tests before I groked just the _why_ of why I'd want to pursue MVP. As of this post, I have checked out gwt-platform, mvp4g, Guice 2.0 and Guice 3.0 MVP -- still haven't decided the direction I'm headed. IMHO, Schilly was right in that the code muddles the theoretical discussions or visa-versa. MVP is a concept. The frameworks are based upon that, but they possess different implementations based upon the concept. Good luck! On Tue, Apr 5, 2011 at 3:04 PM, Alex alex...@gmail.com wrote: I've been looking into GWT and MVP recently and to be honest I'm very confused. My project involves around 40 different pages / individual views, or whatever the correct terminology is. I've been reading tutorials that follow Model-View-Presenter and others that use Activities and Places. Which one should I be using? Many thanks, Alex -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP
Better to use MVP with activities and places as suggested by official GWT team. Thanks, -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
GWT MVP pattern - change different parts of page on an event
I am creating a GWT application using MVP pattern. I have an index
page which uses DockLayoutPanel. I have view and presenter for each
section of dockLayoutPanel (ex: NorthView and NorthPresenter). I have
four buttons in the center panel (NorthBtn, EastBtn, WestBtn,
SouthBtn). onClick of any one of the buttons the UI should change in
respective section of dockLayoutPanel.
Entry Point Class:
@Override
public void onModuleLoad() {
RPCServiceAsync rpcService = GWT.create(RPCService.class);
HandlerManager eventBus = new HandlerManager(null);
AppController appViewer = new AppController(rpcService, eventBus);
appViewer.go(RootLayoutPanel.get());
}
AppController class has the logic for History management and event
handling logic. (From Google article - To handle logic that is not
specific to any presenter and instead resides at the application
layer, we'll introduce the AppController component.)
For example, onClick of a EastBtn in center panel I add a new history
token, east, and onValueChange() method is called. The respective
presenter and view is created, say EastView and EastPresenter:
1. How can I update the existing EastPanel with the newly created
panel (as I dont have handle to the old Panel)?
2. If the user has bookmarked the page after the button click and re-
visits the page with bookmarked link, the flow would reach
onValueChange method and create EastView and EastPanel. But, how can
the rest of the page be re-created and EastPanel be updated?
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Re: GWT MVP pattern - change different parts of page on an event
Not sure if I'm stating things you already know, but maybe an
alternative or cleaner way is to implement MVP using Places and
Activities
Each section could have an Activity Manager that changes the Presenter/
Activity based on the Place (May not change everyone section each
time)
Or you could have a presenter for some sections that implement custom
EventHandlers and replace the displayed widget depending on custom
events
Not sure what your exact use is, but having a presenter for each
section (as a starting point) may prove messy in the long run.
On Apr 5, 2:29 pm, moni mithun.go...@gmail.com wrote:
I am creating a GWT application using MVP pattern. I have an index
page which uses DockLayoutPanel. I have view and presenter for each
section of dockLayoutPanel (ex: NorthView and NorthPresenter). I have
four buttons in the center panel (NorthBtn, EastBtn, WestBtn,
SouthBtn). onClick of any one of the buttons the UI should change in
respective section of dockLayoutPanel.
Entry Point Class:
@Override
public void onModuleLoad() {
RPCServiceAsync rpcService = GWT.create(RPCService.class);
HandlerManager eventBus = new HandlerManager(null);
AppController appViewer = new AppController(rpcService, eventBus);
appViewer.go(RootLayoutPanel.get());
}
AppController class has the logic for History management and event
handling logic. (From Google article - To handle logic that is not
specific to any presenter and instead resides at the application
layer, we'll introduce the AppController component.)
For example, onClick of a EastBtn in center panel I add a new history
token, east, and onValueChange() method is called. The respective
presenter and view is created, say EastView and EastPresenter:
1. How can I update the existing EastPanel with the newly created
panel (as I dont have handle to the old Panel)?
2. If the user has bookmarked the page after the button click and re-
visits the page with bookmarked link, the flow would reach
onValueChange method and create EastView and EastPanel. But, how can
the rest of the page be re-created and EastPanel be updated?
--
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Re: GWT + MVP + Spring + Hibernate
this repo has gwt mvp spring but uses mybatis so no Hibernate: https://github.com/ashtonthomas/beans On Apr 3, 1:27 am, Jan Mostert j...@mycee.com wrote: Spring Roo will integrate all that stuff for you. -- Jan Vladimir Mostert BEngSci MyCee Technologies On Sat, Apr 2, 2011 at 11:14 AM, Zaur Guliyev mr.zau...@gmail.com wrote: Hello, I'm newbie in GWT and as well as to Spring, Hibernate and MVP framework. Is there any tutorial or project example on which I can learn all this GWT integration stuff with above mentioned frameworks? Any help is appretiated... -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT + MVP + Spring + Hibernate
Isn't there a step-by-step tutorial at least on GWT + Spring Roo ?! ... I've searched on Google but can'T find any resource..even only Spring Roo will suit...Do you have any suggestion? And one more question, do I have to start with Spring MVC first? Or are Spring Roo and Spring MVC different subjects ... and that would be better to start directly with Roo maybe? 2011/4/3 Ashton Thomas ash...@acrinta.com this repo has gwt mvp spring but uses mybatis so no Hibernate: https://github.com/ashtonthomas/beans On Apr 3, 1:27 am, Jan Mostert j...@mycee.com wrote: Spring Roo will integrate all that stuff for you. -- Jan Vladimir Mostert BEngSci MyCee Technologies On Sat, Apr 2, 2011 at 11:14 AM, Zaur Guliyev mr.zau...@gmail.com wrote: Hello, I'm newbie in GWT and as well as to Spring, Hibernate and MVP framework. Is there any tutorial or project example on which I can learn all this GWT integration stuff with above mentioned frameworks? Any help is appretiated... -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- *Zaur Guliyev Ankara University Computer Engineering** Cell: +905072645995* -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT + MVP + Spring + Hibernate
ROO is just a console that generates a scaffold for you containing Spring-MVC code with a JPA (Hibernate) and then you can slap any UI on top of it, like GWT using the gwt setup command This page will take you through it step by step: http://www.springsource.org/roo/start Once you've done the tutorial, you'll have a scaffold in place on top of which you can work or which you can modify to your liking. -- Jan Vladimir Mostert BEngSci MyCee Technologies On Sun, Apr 3, 2011 at 6:00 PM, Zaur Guliyev mr.zau...@gmail.com wrote: Isn't there a step-by-step tutorial at least on GWT + Spring Roo ?! ... I've searched on Google but can'T find any resource..even only Spring Roo will suit...Do you have any suggestion? And one more question, do I have to start with Spring MVC first? Or are Spring Roo and Spring MVC different subjects ... and that would be better to start directly with Roo maybe? 2011/4/3 Ashton Thomas ash...@acrinta.com this repo has gwt mvp spring but uses mybatis so no Hibernate: https://github.com/ashtonthomas/beans On Apr 3, 1:27 am, Jan Mostert j...@mycee.com wrote: Spring Roo will integrate all that stuff for you. -- Jan Vladimir Mostert BEngSci MyCee Technologies On Sat, Apr 2, 2011 at 11:14 AM, Zaur Guliyev mr.zau...@gmail.com wrote: Hello, I'm newbie in GWT and as well as to Spring, Hibernate and MVP framework. Is there any tutorial or project example on which I can learn all this GWT integration stuff with above mentioned frameworks? Any help is appretiated... -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- *Zaur Guliyev Ankara University Computer Engineering** Cell: +905072645995* -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
GWT + MVP + Spring + Hibernate
Hello, I'm newbie in GWT and as well as to Spring, Hibernate and MVP framework. Is there any tutorial or project example on which I can learn all this GWT integration stuff with above mentioned frameworks? Any help is appretiated... -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT + MVP + Spring + Hibernate
Spring Roo will integrate all that stuff for you. -- Jan Vladimir Mostert BEngSci MyCee Technologies On Sat, Apr 2, 2011 at 11:14 AM, Zaur Guliyev mr.zau...@gmail.com wrote: Hello, I'm newbie in GWT and as well as to Spring, Hibernate and MVP framework. Is there any tutorial or project example on which I can learn all this GWT integration stuff with above mentioned frameworks? Any help is appretiated... -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
GWT-MVP Design Issue
Hello, I am a newbie trying to create a page using MVP with Best practices (GWT-Dispatch, GWT-Presenter and GWT-Gin). I modified the HelloMVP example and trying to load some of the Panels and Widgets dynamically based on the user action. Could you suggest or give a sample code which achieve the required functionality and also what are the disadvantage of creating Panel Widgets dynamically?. Thanks In Advance. Murali -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Of course! I didn't mean to imply that you shouldn't secure your app, but honestly if someone succeeds in hijacking your session, then he could possibly do it before loading the host page, so that your GWT app will run with the hijacked session, and the auth token in the request payload won't be of any help. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Hi Thomas, On Fri, Feb 25, 2011 at 8:49 AM, Thomas Broyer t.bro...@gmail.com wrote: Of course! I didn't mean to imply that you shouldn't secure your app, but honestly if someone succeeds in hijacking your session, then he could possibly do it before loading the host page, so that your GWT app will run with the hijacked session, and the auth token in the request payload won't be of any help. First off, the hacker couldn't have access to the local cookie on the user's machine unless the user has been infected with a virus. If the user's computer has been infected with a virus that can some how target local cookies then this user has a lot more to worry about than someone hijacking their session. So let's rule that scenario out. Secondly, if the hacker could somehow manage to hijack your session - meaning they've some how coerced the request to use a different value for the session id) and do it before loading the host page it wouldn't make a difference if every Servlet method that is called does the following: 1) checks each payload for an auth token (a value equal to the sid stored as a cookie on the client) and 2) compares the auth token's value to the HttpSession's session id value. If they aren't the same then throw a custom exception and catch it on the client and authenticate the user (either form-based auth or some other method such as Google Account, OpenId, et. al) Not only does the above protect against session hijacking but it also solves the how do I know if the session is timed out question. So you solve two use cases in one implementation which isn't bad. You can even use filters to do this eliminating the need for every Servlet method to implement this logic. It's a simple, viable solution to an attack that is quite prevalent these days. It's implementation on both the client and server are trivial yet (I would venture to guess) is regrettably ignored by many if not most developers (to which I am not limiting to GWT developers). Of course, having a secure transport protocol (ie SSL) is the ultimate solution but not every site or every page on a site requires SSL yet every page that communicates with the server on every site requires a proactive defense against these kinds of attacks. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- *Jeff Schwartz* http://jefftschwartz.appspot.com/ http://www.linkedin.com/in/jefftschwartz follow me on twitter: @jefftschwartz -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Does this mean that auth token in the request payload is not of much use? Also, I want to understand when i have the token set in the requestfactory payload, how to retrieve from the payload when a service call is made by requestfactory since i will have to validate the token for every service request. On Friday, February 25, 2011 3:49:32 PM UTC+2, Thomas Broyer wrote: Of course! I didn't mean to imply that you shouldn't secure your app, but honestly if someone succeeds in hijacking your session, then he could possibly do it before loading the host page, so that your GWT app will run with the hijacked session, and the auth token in the request payload won't be of any help. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
On Fri, Feb 25, 2011 at 10:14 AM, veenatic praveen.bit...@gmail.com wrote: Does this mean that auth token in the request payload is not of much use? Also, I want to understand when i have the token set in the requestfactory payload, how to retrieve from the payload when a service call is made by requestfactory since i will have to validate the token for every service request. On Friday, February 25, 2011 3:49:32 PM UTC+2, Thomas Broyer wrote: Of course! I didn't mean to imply that you shouldn't secure your app, but honestly if someone succeeds in hijacking your session, then he could possibly do it before loading the host page, so that your GWT app will run with the hijacked session, and the auth token in the request payload won't be of any help. To the contrary - it means that every request to the server should include it and that ever request should validate it against the HttpSession's session id value and respond accordingly. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- *Jeff Schwartz* http://jefftschwartz.appspot.com/ http://www.linkedin.com/in/jefftschwartz follow me on twitter: @jefftschwartz -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
On Friday, February 25, 2011 3:21:18 PM UTC+1, Jeff wrote: Hi Thomas, On Fri, Feb 25, 2011 at 8:49 AM, Thomas Broyer t.br...@gmail.com wrote: Of course! I didn't mean to imply that you shouldn't secure your app, but honestly if someone succeeds in hijacking your session, then he could possibly do it before loading the host page, so that your GWT app will run with the hijacked session, and the auth token in the request payload won't be of any help. First off, the hacker couldn't have access to the local cookie on the user's machine unless the user has been infected with a virus. If the user's computer has been infected with a virus that can some how target local cookies then this user has a lot more to worry about than someone hijacking their session. So let's rule that scenario out. I can setup an web page at attacker.appspot.com that sets a cookie with Domain=.appspot.com, and it'll target every appspot.com app out there. If victim.appspot.com uses its own authentication mechanism and its own cookies, I can then easily set a cookie to a user's browser visiting attacker.appspot.com and redirect it to victim.appspot.com, and he would then be automatically authenticated with my own session (session fixation attack). Secondly, if the hacker could somehow manage to hijack your session - meaning they've some how coerced the request to use a different value for the session id) and do it before loading the host page it wouldn't make a difference if every Servlet method that is called does the following: 1) checks each payload for an auth token (a value equal to the sid stored as a cookie on the client) and 2) compares the auth token's value to the HttpSession's session id value. If they aren't the same then throw a custom exception and catch it on the client and authenticate the user (either form-based auth or some other method such as Google Account, OpenId, et. al) But if the auth token is initialized from the cookie (or somehow attached to the authenticated user) and the attacker managed to set the cookie value on behalf of the webapp (or at least do a session fixation attack), then those two checks won't detect it. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
You are talking about using request cookies so of course the scenario you describe might be possible. Everyone knows they are vulnerable and hence their ease of hijacking. The right way to do it is not using request cookies at all on the server because they cannot be trusted - the auth token must be delivered to the server as part of the payload and it must never be read from a request cookie. On Fri, Feb 25, 2011 at 11:38 AM, Thomas Broyer t.bro...@gmail.com wrote: On Friday, February 25, 2011 3:21:18 PM UTC+1, Jeff wrote: Hi Thomas, On Fri, Feb 25, 2011 at 8:49 AM, Thomas Broyer t.br...@gmail.com wrote: Of course! I didn't mean to imply that you shouldn't secure your app, but honestly if someone succeeds in hijacking your session, then he could possibly do it before loading the host page, so that your GWT app will run with the hijacked session, and the auth token in the request payload won't be of any help. First off, the hacker couldn't have access to the local cookie on the user's machine unless the user has been infected with a virus. If the user's computer has been infected with a virus that can some how target local cookies then this user has a lot more to worry about than someone hijacking their session. So let's rule that scenario out. I can setup an web page at attacker.appspot.com that sets a cookie with Domain=.appspot.com, and it'll target every appspot.com app out there. If victim.appspot.com uses its own authentication mechanism and its own cookies, I can then easily set a cookie to a user's browser visiting attacker.appspot.com and redirect it to victim.appspot.com, and he would then be automatically authenticated with my own session (session fixation attack). Secondly, if the hacker could somehow manage to hijack your session - meaning they've some how coerced the request to use a different value for the session id) and do it before loading the host page it wouldn't make a difference if every Servlet method that is called does the following: 1) checks each payload for an auth token (a value equal to the sid stored as a cookie on the client) and 2) compares the auth token's value to the HttpSession's session id value. If they aren't the same then throw a custom exception and catch it on the client and authenticate the user (either form-based auth or some other method such as Google Account, OpenId, et. al) But if the auth token is initialized from the cookie (or somehow attached to the authenticated user) and the attacker managed to set the cookie value on behalf of the webapp (or at least do a session fixation attack), then those two checks won't detect it. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- *Jeff Schwartz* http://jefftschwartz.appspot.com/ http://www.linkedin.com/in/jefftschwartz follow me on twitter: @jefftschwartz -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
You contradict yourself (compare the HttpSession's ID with the auth token –the HttpSession is maintained by a cookie, whose value generally is the session's ID– vs. do not send the auth token in a cookie), but that's not the problem. The problem is: how are you initializing the auth token on the client side, and how you associate it with the user on the server-side? The client and server have to share some knowledge at some point, and if you have use form based authentication on another web page (i.e. your app's host page is protected and cannot be accessed without being authenticated), then the only way (not accurate, but that's how 99.999% of auth is done, because the alternative comes with a UX penalty) to transfer the authentication from the login page to the app's page is to use either a cookie or pass a unique token in the URL, both of which can be hijacked. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
On Fri, Feb 25, 2011 at 12:30 PM, Thomas Broyer t.bro...@gmail.com wrote: You contradict yourself (compare the HttpSession's ID with the auth token –the HttpSession is maintained by a cookie, whose value generally is the session's ID– vs. do not send the auth token in a cookie), but that's not the problem. Actually I am not contradicting myself, Thomas. You just failed to understand! The problem is: how are you initializing the auth token on the client side, and how you associate it with the user on the server-side? The client and server have to share some knowledge at some point, and if you have use form based authentication on another web page (i.e. your app's host page is protected and cannot be accessed without being authenticated), then the only way (not accurate, but that's how 99.999% of auth is done, because the alternative comes with a UX penalty) to transfer the authentication from the login page to the app's page is to use either a cookie or pass a unique token in the URL, both of which can be hijacked. If the user is authenticated the authentication process should then send down the HttpSession id as part of the payload back to the client. The client then stores the session id it receives as part of the payload from the server as a local cookie. Encryption can even be applied on the server for extra security as it's value has no real meaning to the client, only that it needs to include it in each payload to the server. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- *Jeff Schwartz* http://jefftschwartz.appspot.com/ http://www.linkedin.com/in/jefftschwartz follow me on twitter: @jefftschwartz -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
On Friday, February 25, 2011 6:39:40 PM UTC+1, Jeff wrote: On Fri, Feb 25, 2011 at 12:30 PM, Thomas Broyer t.br...@gmail.com wrote: You contradict yourself (compare the HttpSession's ID with the auth token –the HttpSession is maintained by a cookie, whose value generally is the session's ID– vs. do not send the auth token in a cookie), but that's not the problem. Actually I am not contradicting myself, Thomas. You just failed to understand! And the other way around! ;-) The problem is: how are you initializing the auth token on the client side, and how you associate it with the user on the server-side? The client and server have to share some knowledge at some point, and if you have use form based authentication on another web page (i.e. your app's host page is protected and cannot be accessed without being authenticated), then the only way (not accurate, but that's how 99.999% of auth is done, because the alternative comes with a UX penalty) to transfer the authentication from the login page to the app's page is to use either a cookie or pass a unique token in the URL, both of which can be hijacked. If the user is authenticated the authentication process should then send down the HttpSession id as part of the payload back to the client. The client then stores the session id it receives as part of the payload from the server as a local cookie. This is where you fail to understand me: you make the assumption that the authentication process takes place, while I'm talking about bypassing it with a session-fixation attack. One possible scenario (easily mitigated through the use of your own domain name): *Attacker*: authenticates to victim.example.com, grabs the cookies in use, store them at attacker.example.com (note: same domain, different subdomains, much like appspot.com hosted apps) *Victim*: goes to attacker.example.com, which sets the cookies with Domain=.example.com and redirects it to victim.example.com The victim's browser sends the cookies to victim.example.com (because of Domain=.example.com, they apply, even though they've been set by attacker.example.com) The victim is then authenticated to victim.example.com with the *same session* as the attacker. The session id is sent down to the client as part of the payload, but it's too late. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
I am not dismissing your scenarios outright as I never said that the method was foolproof and I also said that only SSL will give you something close to that. Also lets not forget that if the user manages to be lured to an attackers site via a link in an email for instance and then doesn't notice that they are then redirected to another site then they have bigger problems than having their session hijacked lol. However, there are ways to mitigate even the cross-subdomain attack that you use as an example... On Fri, Feb 25, 2011 at 2:20 PM, Thomas Broyer t.bro...@gmail.com wrote: This is where you fail to understand me: you make the assumption that the authentication process takes place, while I'm talking about bypassing it with a session-fixation attack. I understood perfectly, Thomas. To reiterate, the attacker will have had to authenticate in order to acquire a valid sid which he then stores and waits in prey for the user to respond to his email with a link to his site. When the user takes the bait and visits the attacker's site the attacker redirects the user to another site including the sid as a query parameter. One possible scenario (easily mitigated through the use of your own domain name): *Attacker*: authenticates to victim.example.com, grabs the cookies in use, store them at attacker.example.com (note: same domain, different subdomains, much like appspot.com hosted apps) At this point the request hits the server and the session id is set the query parameter, the same one as the attackers. This attack can be mitigated by changing the session ID when users logs in and to additionally require the user to authenticate on every important request. A pain in the rear for the user of course but it will largely work. The fact that it does work is due to the reluctance to require users to log in for every important request. Sure enough, even if you used SSL it would require that every request uses it in order to be close to 100% protected from this kind of attack. The only sites I know that do that are some banks. I believe Citibank does for instance. Interestingly I believe Facebook announced that they will be rolling this out to all their members. It will be interesting to see how it affects the performance of their site. Perhaps requiring every one to use SSL for every request is the right approach. Maybe we should all be going in that direction but service providers might be loathe to provide this service as it adds additional demands on their servers that they might not be able to handle and the users might complain because of the increased latency. Perhaps using HttpOnly headers would also mitigate this kind of attack. I don't think App Engine supports it though but I wish it did. The bottom line is this, it really comes down to a multi-faceted approach to security. One big wall isn't going to cut it and the more obstacles put up the less chances are that some malcontent will be successful. -- *Jeff Schwartz* http://jefftschwartz.appspot.com/ http://www.linkedin.com/in/jefftschwartz follow me on twitter: @jefftschwartz -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
I think the discussion has become very interesting and I understood a lot about attacks and attackers but I still ponder over the question that if we have to put the auth token on the payload of the RequestFactory, how to do that? And after this how to read the token from the payload to verify it? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
With RPC I define all my RPC synchronous methods taking a string parameter
whose value will be assigned from the cooke storing the sid. On the server,
the handler will compare this string value to the value returned from the
Session.getId() method. If they aren't the same I throw a custom exception
which is caught on the client in the overloaded OnFailure method of the RPC
call.
Here's the typical code for a server-side handler:
@Override
public SingleRPCPayloadSomeTyoe someMethod(String clientSid, ...)
throws MyCapabilityDisabledException {
HttpSession session = getThreadLocalRequest().getSession(true);
String sid = session.getId();
if (clientSid.equals(sid)) {
.
.
.
return payload;
} else {
throw new MyInvalidSessionException();
}
}
On Fri, Feb 25, 2011 at 7:01 PM, veenatic praveen.bit...@gmail.com wrote:
I think the discussion has become very interesting and I understood a lot
about attacks and attackers but I still ponder over the question that if we
have to put the auth token on the payload of the RequestFactory, how to do
that?
And after this how to read the token from the payload to verify it?
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Re: gwt mvp sessions
btw my bad I meant to say overridden OnFailure method... sorry about that
On Fri, Feb 25, 2011 at 7:15 PM, Jeff Schwartz jefftschwa...@gmail.comwrote:
With RPC I define all my RPC synchronous methods taking a string parameter
whose value will be assigned from the cooke storing the sid. On the server,
the handler will compare this string value to the value returned from the
Session.getId() method. If they aren't the same I throw a custom exception
which is caught on the client in the overloaded OnFailure method of the RPC
call.
Here's the typical code for a server-side handler:
@Override
public SingleRPCPayloadSomeTyoe someMethod(String clientSid, ...)
throws MyCapabilityDisabledException {
HttpSession session = getThreadLocalRequest().getSession(true);
String sid = session.getId();
if (clientSid.equals(sid)) {
.
.
.
return payload;
} else {
throw new MyInvalidSessionException();
}
}
On Fri, Feb 25, 2011 at 7:01 PM, veenatic praveen.bit...@gmail.comwrote:
I think the discussion has become very interesting and I understood a lot
about attacks and attackers but I still ponder over the question that if we
have to put the auth token on the payload of the RequestFactory, how to do
that?
And after this how to read the token from the payload to verify it?
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http://jefftschwartz.appspot.com/
http://www.linkedin.com/in/jefftschwartz
follow me on twitter: @jefftschwartz
--
*Jeff Schwartz*
http://jefftschwartz.appspot.com/
http://www.linkedin.com/in/jefftschwartz
follow me on twitter: @jefftschwartz
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Re: gwt mvp sessions
Thanks Jeff, With RPC, this way is understood. Similarily, I have some idea with RequestFactory also like requestFactory.serviceRequest().getAllEntities(clientSid); and on the server side, in getAllEntities(String clientSid) i can verify the same way you did. But this way is forcing me to put an extra parameter in all my business methods. I am sure there are other ways. Any Ideas? Obviously, the above approach is not that ugly. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
You could use the Command pattern as with GWT-RPC using a ValueProxy as the command object, but I'm not sure what you'd gain by it as you'd lose all the RF functionality related to entities. As it currently stands, you would need to modify the RF transport protocol, perhaps with a ServiceLayerDecorator. Are you convinced that the token needs to be part of the payload vs. request header? It's much easier to modify the header by extending DefaultRequestTransport as Thomas has pointed out elsewhere. /dmc On Fri, Feb 25, 2011 at 7:34 PM, veenatic praveen.bit...@gmail.com wrote: Thanks Jeff, With RPC, this way is understood. Similarily, I have some idea with RequestFactory also like requestFactory.serviceRequest().getAllEntities(clientSid); and on the server side, in getAllEntities(String clientSid) i can verify the same way you did. But this way is forcing me to put an extra parameter in all my business methods. I am sure there are other ways. Any Ideas? Obviously, the above approach is not that ugly. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- David Chandler Developer Programs Engineer, Google Web Toolkit w: http://code.google.com/ b: http://googlewebtoolkit.blogspot.com/ t: @googledevtools -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
If you want to pass an authentication token on each request, then the RequestTransport is the way to go on the client-side. Have a look http://code.google.com/p/google-web-toolkit/source/browse/tags/2.1.1/samples/expenses/src/main/java/com/google/gwt/sample/gaerequest/ which is used in the Expenses sample. Hi Thomas, Thanks for all your valuable insight to the subject. I am looking for some more explanation on the above. If I understood correctly, we can implement separate page for login and a separate page where the gwt app resides. Once the user is authenticated from login page, we have the security token, but how to communicate the token obtained from the login page to the gwt app so that we can put the token in the RequestTransport and initialize the RequestFactory. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
In such a scenario, you'll generally have a session maintained by the server through a cookie, which will be enough (yes, cookies are not that secure, but still deemed secure enough that everyone from Google to Facebook, Twitter, Microsoft, Yahoo!, etc. use them). The RequestTransport will then be useful to detect when the session/cookie have expired. Now, if your host page (the page that hosts the GWT app) can now an authentication token, then you can output it in the page (using a JSP for instance) and use a Dictionary to retrieve it from your GWT code. See http://code.google.com/webtoolkit/articles/dynamic_host_page.html -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
On Thu, Feb 24, 2011 at 6:19 PM, Thomas Broyer t.bro...@gmail.com wrote: In such a scenario, you'll generally have a session maintained by the server through a cookie, which will be enough (yes, cookies are not that secure, but still deemed secure enough that everyone from Google to Facebook, Twitter, Microsoft, Yahoo!, etc. use them). I respectfully disagree, Thomas, and think your advice on this is ill served. In addition I believe that there are those at all the companies that you mentioned who would take issue with your opinion. Values from cookies that are explicitly maintained on the client and which are transported to the server as part of an RPC's payload can be trusted but values which come directly from HTTPRequest's cookies aren't trustworthy. That's a fact. Leave one little hole open and some malcontent with a half a brain is going to take advantage of it and hijack your session. It's such an easy prevention to implement that one would have to be foolish to not take advantage of it. -- *Jeff Schwartz* http://jefftschwartz.appspot.com/ http://www.linkedin.com/in/jefftschwartz follow me on twitter: @jefftschwartz -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
On 26 January 2011 14:53, Thomas Broyer t.bro...@gmail.com wrote:
You mean how I *did* implement it? ;-)
Using the same pattern as the Expenses sample:
1. out HTML host page (the one calling the *.nocache.js) is protected
with a simple servlet FORM authentication
(login-configauth-methodFORM/... in the web.xml); nothing special
here.
2. the server returns a known error response for unauthenticated
requests (i.e. a 401 status code, I didn't include a WWW-Authenticate
header
which is in violation of HTTP, but it just works so...), this is done in a
servlet Filter, where I simply check for request.getUserPrincipal() !=
null.
This has really nothing specific to RequestFactory, and we use it with
other
XMLHttpRequest-driven requests too.
I don´t know why this is wrong, but the checking of
request.getUserPrincipal() != null seems to be valid only the first time a
request is made. The following requests (made by the requestFactory),
getUserPrincipal() returns null. Here´s my code in my AuthFilter class:
public void doFilter(ServletRequest servletRequest, ServletResponse
servletResponse, FilterChain filterChain) throws IOException,
ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
HttpServletResponse response = (HttpServletResponse) servletResponse;
if(request.getUserPrincipal() == null) {
response.setHeader(WWW-Authenticate, FORM realm=\userRealm\);
response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
return;
}
What am I doing wrong?
1. the client handles the known error response in a custom
RequestTransport (in our case, for the time being, we simply Window.alert()
the user, prompting him to refresh the page to re-authenticate)
(BTW, thank you for the expert qualifier ;-) )
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Re: gwt mvp sessions
On 16 February 2011 12:14, Ernesto Reig erniru...@gmail.com wrote:
On 26 January 2011 14:53, Thomas Broyer t.bro...@gmail.com wrote:
You mean how I *did* implement it? ;-)
Using the same pattern as the Expenses sample:
1. out HTML host page (the one calling the *.nocache.js) is protected
with a simple servlet FORM authentication
(login-configauth-methodFORM/... in the web.xml); nothing special
here.
2. the server returns a known error response for unauthenticated
requests (i.e. a 401 status code, I didn't include a WWW-Authenticate
header
which is in violation of HTTP, but it just works so...), this is done in a
servlet Filter, where I simply check for request.getUserPrincipal() !=
null.
This has really nothing specific to RequestFactory, and we use it with
other
XMLHttpRequest-driven requests too.
I don´t know why this is wrong, but the checking of
request.getUserPrincipal() != null seems to be valid only the first time a
request is made. The following requests (made by the requestFactory),
getUserPrincipal() returns null. Here´s my code in my AuthFilter class:
public void doFilter(ServletRequest servletRequest, ServletResponse
servletResponse, FilterChain filterChain) throws IOException,
ServletException {
HttpServletRequest request = (HttpServletRequest) servletRequest;
HttpServletResponse response = (HttpServletResponse) servletResponse;
if(request.getUserPrincipal() == null) {
response.setHeader(WWW-Authenticate, FORM realm=\userRealm\);
response.sendError(HttpServletResponse.SC_UNAUTHORIZED);
return;
}
What am I doing wrong?
Sorry, it was my fault. I have it solved :)
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GWT MVP vs GXT MVC
Hello, GWT as of now currently doesnt support Data Binding for views in MVP by which we could directly attach Model Objects to Views. I started with GWT but now looking forward to GXT since it allows data binding. Kindly help me with on how MVP could be used for GXT? Since I really like MVP approach which simplifies the testing and all, and also will help me save lot of rework. Also any thoughts on having view Objects GXT based ... add it to the panel in the View which will also allow Data Binding. Thanks in advance, Drew -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT MVP vs GXT MVC
GWT does support databinding. Check out editors. http://code.google.com/webtoolkit/doc/latest/DevGuideUiEditors.html And for doing MVP with regards to GXT, you can inject your presenter back into your view and then have various events call methods on the presenter. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Thank you very much for your responses Thomas and Y2i. Maybe, this can help to other people who are (like me) changing from Tomcat to Jetty. Refering to the web.xml and jetty-web.xml: - I did know that jetty.home was pointing to my working directory (C:\workspace\my_app\src\main\webapp in my case), but my problem was that I couldn´t understand that Jetty was going to look for the users in a properties file inside my_app. I was trying to draw an analogy between the tomcat-way and the Jetty-way. I though if the authentication is against the server (jetty), why do I have to provide the users to Jetty? And the answer to this question is that this properties file is used to authenticate users ONLY for THIS web application. For Tomcat users: it´s like configuring a realm inside a Context element ( http://tomcat.apache.org/tomcat-7.0-doc/realm-howto.html#Configuring_a_Realm ). I presume that in a real context, you can have the properties file inside your_app, or establish the jetty.home system property and point to the properties file inside jetty.home/etc/realm.properties and authenticate as a user shared in all web apps. Thank you very much again. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Hello again. It seems that I get stuck in every step... The thing is that I don´t know how to use Tomcat for the Development Mode instead of the embedded Jetty. I´ve been reading lots and lots of docs (including http://code.google.com/webtoolkit/doc/latest/DevGuideCompilingAndDebugging.html#How_do_I_use_my_own_server_in_development_mode_instead_of_GWT%27s) but I still haven´t found a way to do it. In my opinion it isn´t well explained at al, it´s very unclear... I have arrived to this because, as you said, protecting the host page with a servlet FORM authentication forces me to use Tomcat. So I need to check that the servlet authentication I am implementing is right. Therefore, I have to deploy my webapp in Tomcat, BUT I don´t want to end up re-deploying the application in Tomcat every time I make a little change in the code. Any help on this, please? Than you very much. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
I also started from using Tomcat, but the debugging issue forced me to switch to Jetty. It took time to learn Jetty's specifics but it was worth it. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Thank you very much for your response. At the moment I´m studying jetty and I get to a very simple question: *¿What is or how can I know, the current Jetty version of the current GWT version?* Now I´m using 2.1.1 This is a very simple question that I cannot understand why in the world there´s no answer in the GWT official documentation... Thank you in advance. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Ok. Now I´m configuring the application to authenticata against the embedded Jetty server wich comes with GWT. Please, correct me if I´m wrong: - I have to create a jetty-web.xml in WEB-INF of my gwt application with the following text: Configure class=org.mortbay.jetty.webapp.WebAppContext Set name=contextPath/test/Set Set name=warSystemProperty name=jetty.home default=.//webapps/test/Set ... Get name=securityHandler Set name=userRealm New class=org.mortbay.jetty.security.HashUserRealm Set name=nameTest Realm/Set Set name=configSystemProperty name=jetty.home default=.//etc/realm.properties/Set /New /Set /Get /Configure And it gives me the following exception: java.io.FileNotFoundException: C:\workspace\myapp\src\main\webapp\etc\realm.properties (The system cannot find the path specified) Of course it does not find the file realm.properties. First, I have no jetty.home system variable set, and second, what would it be the value of this system variable?? The thing is, if I want to use HashUserRealm for my webapp authentication, Jetty looks for a properties file to find the users and their credentials, but where the hell is that file? Jetty is embedded... Maybe I´m wrong in something. Please help. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
On Thursday, January 27, 2011 7:49:01 PM UTC+1, ernesto.reig wrote: Ok. Now I´m configuring the application to authenticata against the embedded Jetty server wich comes with GWT. Please, correct me if I´m wrong: - I have to create a jetty-web.xml in WEB-INF of my gwt application with the following text: Configure class=org.mortbay.jetty.webapp.WebAppContext Set name=contextPath/test/Set Set name=warSystemProperty name=jetty.home default=.//webapps/test/Set You don't have to set these: you're already in the webapp (I don't think the contextPath will be used given the way the webapp is deployed) ... Get name=securityHandler Set name=userRealm New class=org.mortbay.jetty.security.HashUserRealm Set name=nameTest Realm/Set Set name=configSystemProperty name=jetty.home default=.//etc/realm.properties/Set /New The jetty.home points to your working directory (according to my comment in http://code.google.com/p/google-web-toolkit/issues/detail?id=4462), which generally will be your war folder. (compared to the sample jetty-web in my comment on the issue, you would just need to replace the authenticator with the login-config, or you could use the same thing as I used to use) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Based on the below I assumed it's 6.1.23, this is what I'm using. find . -name *jetty* ./org.eclipse.equinox.http.jetty_2.0.0.v20100503.jar ./org.mortbay.jetty.serveradaptor_1.0.4 ./org.mortbay.jetty.serveradaptor_1.0.4/icons/jetty_tiny.gif ./org.mortbay.jetty.serveradaptor_1.0.4/servers/jetty.serverdef *./org.mortbay.jetty.server_6.1.23.v201004211559.jar* *./org.mortbay.jetty.util_6.1.23.v201004211559.jar* -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gwt mvp sessions
Jetty classes are packaged within gwt-dev.jar, that one comdes from somewhere else (Eclipse WTP ?) The version used by GWT is 6.1.1: http://code.google.com/p/google-web-toolkit/source/browse/tags/2.1.1/dev/build.xml#62 -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
