Re: Future of GWT survey
have the results of this survey been posted anywhere? if not, any ETA on when they might be? much thanks! On Wednesday, September 19, 2012 6:23:24 AM UTC-7, Joonas Lehtinen wrote: > > What is your opinion on the future of GWT? > How should GWT develop? > What technologies should it better support? > ... > > We all would like to get answers to these questions, right? To do so, we > created survey with help of Ray Cromwell, Artur Signell, Mike Brock, David > Chandler, Daniel Kurka and Bhaskar Janakiraman. > > If you want to help finding the best direction for GWT, please fill the > survey at: http://bit.ly/GWT2012 > (it will take just 10 minutes) > > When the results are collected, the will share the information with you. > > - Joonas @ Vaadin > -- 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/-/vYaiNquYMxsJ. 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: jquery?
my $.02 would be that it all depends on what kind of project/app/ website you're building. if you want to have a true web application where the page seldom if ever does a full refresh and you want to have a lot of fancy and super awesome functionality, then GWT is the way to go. i've heard that there are ways with javascript to manage your project well, but my experience with JS is somewhat limited. i think it's better for a large web app to be able to work one level of abstraction higher by coding in java and taking advantage of everything that brings. however, if you're building what's really a website and you want to have just a sprinkling of ajax or a little cool functionality, then by all means go with jquery. it's much more lightweight and for simple things, way simpler. but from what i've seen i would definitely not want to do anything of significant size with that. most likely building a website will be faster, but a web app has a lot of advantages. with a web app you can push your state down into the client and have a stateless server side which helps bigtime with scalability. but, depending on your project there may be security concerns around doing that. as always, pros and cons both ways but by asking on a GWT list the answer of which to go with is most likely going to be GWT. :) On Oct 25, 12:53 pm, Luis Montes wrote: > Maintaining JS doesn't have to become a nightmare on large projects. Other > toolkits besides jquery have taken things like modularity,dependency > management, and modularity into account. > > Write in GWT if you want to write in Java. > -- 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: best architecture for GWT + Spring
i'd also agree with going the route of #2, and keeping GWT-RPC for convenience. yes, it's nice architecturally to say your client and server are loosely coupled via JSON, but in practice writing JSNI objects to read the JSON is hard to debug and can be rather tedious. i did that previously with a grails backend, and because grails at that point was unproven to me wanted to be able to swap it out for something later and not even tie myself into a java backend. i wouldn't recommend it. unless you have requirements that you can't have a java backend or really don't think it's going to last, i'd keep GWT-RPC and have that attach to spring as the previous poster mentioned. you might also have requirements of different (non-GWT) clients calling your restful server side and still want to go with JSON, but again i'd think about having multiple input/output formats (GWT-RPC, JSON, XML, etc) all calling into the same services layer instead of trying to standardize on one input/output data format. hope that helps! ps. only my $.02, not necessarily an expert opinion. :) On Jul 14, 8:04 am, cri wrote: > Definitely #2 for the reasons you mentions, with the GWT RPC server > side attaching to the Spring application context. > > On Jul 14, 6:15 am, Ernesto Reig wrote: > > > > > > > > > Hello everybody. > > I have been discussing this topic with some collegues and we would like to > > know the "GWT community" expert opinion :) > > As the title says, the discussion is about the best architecture (or best > > practices) for building enterprise web applications with GWT and Spring, and > > the different options available are: > > > - GWT MVP front-end + Spring MVC + Spring architecture back-end*. > > - GWT MVP front-end + Spring architecture back-end*. > > - Spring MVC + GWT components inside html´s and JSP´s + Spring architecture > > back-end*. > > > *Spring architecture back-end is composed of several different maven > > modules/projects (separated by functionality) each one made with Spring. > > > From my point of view, the best option is the second one. With that option > > you are not mixing concepts nor using two design patterns together for the > > same thing (GWT MVP and Spring MVP), which I think is nonsense. Also you can > > develop the GWT part completely independent with the back-end part (with no > > Spring MVC in the middle). So you can make the front-end part with GWT, thus > > using the GWT best practices and features like Activities, Places, > > RequestFactory, etc. And the back-end part focusing on every module > > independently, using the technologies you want (Spring in this case) for > > each one. > > > What do you think about this? Every point is appreciated. > > > Thank 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: .setVisible(true); // I can't see what I am missing
".setVisible(true); // I can't see what I am missing" - enjoyed the pun. :) -- 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.
Spiffy UI?
is anyone familiar with the Spiffy UI framework? http://www.spiffyui.org/ it potentially looks very interesting but i've only given it a quick once-over, and haven't dug in enough to really figure out pros & cons. -- 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: User GWT to develop android apps that are not browser based?
try GWTMobile: https://github.com/dennisjzh/GwtMobile i haven't used it myself but believe it does what you're looking for. On May 19, 2:55 pm, cri wrote: > I just skimmed through the Google IO talk by Chris Ramsdale on using > GWT to build mobile web apps, hosted on Android for example. > Interesting, but what about using GWT to develop an Android app that > isn't accessed via the browser, i.e. that is downloaded through the > Android Market? Is this possible? The latter seems more like a first > class android application. 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.
uploading to amazon s3
hi all, wondered if anyone has had any success doing reliable and robust uploads to amazon s3 directly from the browser? i need to upload mp3 files at 3-10ish MB a pop. i have it working using the GWT-S3 library (http://code.google.com/p/ gwt-s3/) which basically translates into doing glorified form posts. this works great for smaller image files but the problem i'm running into is that occasionally uploads (especially of larger files) seem to disappear into the ether and just spin forever. i'm looking at building in a timeout and upload verification, but would also like to explore something that is flash-based, along the lines of one of these libraries: swfupload-gwt - http://code.google.com/p/swfupload-gwt/ gwtswfext - http://code.google.com/p/gwtswfext/ gwt-plupload - http://code.google.com/p/gwt-plupload/ of these i've made attempts with swfupload-gwt and gwtswfext (both of these libraries are wrappers to swfupload flash uploader) and made the most progress with gwtswfext. that said, i can't actually get the uploads to work with that library as of yet. i've found examples of using these libraries and examples of uploading to amazon s3, but very little crossover between the two. so before i start asking any specific questions or posting specific error messages, wanted to ask if there's anyone on the list with experience in this or who might be able to provide any examples along these lines. thanks in advance! dave -- 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-tool...@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: Database and GWT
iBATIS sounds interesting so i just looked it up... has support been discontinued as of june 2010? there's something on the top of the page saying it's been put in apache's "attic", which is not something i'm familiar with but it doesn't sound promising. On Aug 5, 5:26 pm, charlie wrote: > Don't forget iBATIS, I love this tool. Straight SQL mapped to pojo's , with > iBator to reverse enginer your tables for you. > > Only badside is there's not much documentation, you'll need a book if you're > new to it. > > > > > > On Thu, Aug 5, 2010 at 5:23 PM, Maurice Nee wrote: > > Sorry for the broken link. Here you go > >http://code.google.com/webtoolkit/articles/using_gwt_with_hibernate.html > > > On Aug 5, 6:20 pm, Maurice Nee wrote: > > > You have a couple of options: > > > 1. Hibernate (or some other ORM tool) > > > 2. JDBC > > > 3. PHP and JSON > > > > Be prepared, the Hibernate learning curve is substantial. If you use > > > Eclipse, you will need to install a slew of plugins for integrating > > > Hibernate and whichever build tool you pefer, (Maven, Ant, etc.). Then > > > you will need to address the Hibernate GWT Serialization issues. This > > > is pretty much the best article on using the two together, but > > > unfortunately it does not address how to setup your project. > > href="http://code.google.com/webtoolkit/articles/ > > > using_gwt_with_hibernate.html">Using GWT and Hibernate > > > > I have not used JDBC with GWT, but I think you will need a JRE on your > > > server. > > > > PHP and JSON is the easiest to get up and running. There are a number > > > of tutorials online on GWT + PHP + MySQL > > > > On Aug 5, 5:56 pm, Diego Venuzka wrote: > > > > > Hi! > > > > After some hours without sleep to solve my compilation problem, i stop > > in > > > > another problem. I'll need to insert data in database, and how GWT can > > help > > > > with this? Or i can insert using the "tradicional method" with Java? > > > > Thanks =) > > > > > -- > > > > Diego Venuzka > > > -- > > 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-tool...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-web-toolkit+unsubscr...@googlegroups.com > cr...@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-tool...@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: Any Good GWT Photo Uploaders?
try gwtupload. http://code.google.com/p/gwtupload/ i'm not sure if it can handle uploading 150 files simultaneously but it has multiple upload capability. as well, there's a separate mailing list specific to that for questions. On Aug 5, 1:43 pm, GKotta wrote: > Are there any good GWT photo uploader applications out there? The app > that I am making involves users uploading as many as 150 photos. So I > was wondering if there are any GWT photo uploaders that can handle > that many photo uploads all at once. > > 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-tool...@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: The Music Collective, a GWT project
Nice app. Any concerns about music industry problems? On Jul 12, 3:08 pm, charlie wrote: > Hi all! > > So I'm launching my first GWT > app,http://www.the-music-collective.com/listen/MP3Player.html. A year ago > pandora started charging for more than 40 hours a month, so I decided to > write an online mp3 player that I could upload my music to once and listen > to wherever. > > It's since become an sort of social networking meets music app, where you > invite friends, they 'like' songs, and you can get a glimpse of what > everyone is into, music wise, at the moment. > > One interesting aspect was this deferred login / sign up. The application > only prompts you for login / signup when you try to do something that > requires you to be logged in. This was an after thought, but thanks to how > GWT is setup, it required little to no changes at all. > > So, what have you built with GWT? Share! > > Charlie -- 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-tool...@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: Mixing Projects
have you put the code of project B somewhere that project A can see it when it is deployed? if you put different projects on the build path in eclipse it will compile fine but i don't think that cuts it when it comes time to deploy. i'm doing something similar, where i have one GWT project reusing the code of another one in eclipse. what i've done there is to export the code from the first project to a jar in the lib directory of the second project, and not put the first project on the build path of the second. the only pain there is if i change the code of the first project i have to re-export to the jar, but that avoids the deploy issue you may be running into. and in the gwt.xml of the second project you'll have to the module of the first project. in the first project i have 2 gwt.xml files - one with an entry point and one without. in the second project i'm inheriting the one without the entry point. hopefully i'm understanding the problem correctly - just skimmed the posts above and quickly throwing in $.02 in hope that it will help. On Apr 16, 10:53 am, John wrote: > On Fri, Apr 16, 2010 at 11:28 AM, Brian Smith wrote: > >> Did I miss a step? > > > More likely my suggestion was incomplete... > > Can you correct this using the element in the module xml file? > > I haven't been able to test I'm afraid. > > Don't worry about testing. I appreciate any pointers in the right > direction, and I'll do the testing. When I changed my inherit > statement, to: > > > > it compiled without error. However, it still crashes when I try to > run the application, even in development mode. I think the format of > my source statement is wrong. I think this is covered someplace in > the docs, so I'll look when I have time later on. > > John > > -- > 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-tool...@googlegroups.com. > To unsubscribe from this group, send email to > google-web-toolkit+unsubscr...@googlegroups.com. > For more options, visit this group > athttp://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-tool...@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: How to scroll page to element
I've learned some things reading this thread. nice. :)
looks like there are some easier ways of doing things than how i'm
doing my scrolling, and this would probably be not the easiest, but
i'll mention it for completeness. it's also possible to do the
browser window scrolling in javascript, and make a JSNI call to the
javascript function to do it. i'm currently using this method to
simulate a page refresh:
function scrollToTop() {
window.scroll( 0, 0 );
}
and the corresponding GWT JSNI method:
public native void jsScrollWindowToTop() /*-{
$wnd.scrollToTop();
}-*/;
just one more option.
On Apr 12, 11:19 am, Brandon Turner wrote:
> You can get away without a ScrollPanel if you want to as well. Something
> like:
>
> verticalPanel.getElement().setScrollTop(secondFlexTable.getElement().getAbsoluteTop());
>
> -Brandon
>
> On Mon, Apr 12, 2010 at 12:12 PM, t.dave wrote:
> > use ScrollPanel.setScrollPosition(). that sets the vertical scroll
> > position of the scrollpanel, which you will need to calculate. try
> > something like this:
>
> > new ClickHandler() {
> > public void onClick( ClickEvent event ) {
> > int tableTop = secondFlexTable.getAbsoluteTop();
> > scrollPanel.setScrollPosition( tableTop );
> > }
> > }
>
> > i suppose in your case it wouldn't be a click handler if you're basing
> > it off the history token, but hopefully this will point you in the
> > right direction.
>
> > On Apr 12, 7:34 am, redlaber wrote:
> > > I want to scroll page, generated with gwt, to some element. Its should
> > > be simple, but i cannt find the solution. For example: I have a
> > > vertical panel with two flexables. When i get the history token
> > > "goto2" I want to scroll my page to the second table. (Sorry for the
> > > terrible english).
>
> > --
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> > To unsubscribe from this group, send email to
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> > .
> > For more options, visit this group at
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Re: How to scroll page to element
use ScrollPanel.setScrollPosition(). that sets the vertical scroll
position of the scrollpanel, which you will need to calculate. try
something like this:
new ClickHandler() {
public void onClick( ClickEvent event ) {
int tableTop = secondFlexTable.getAbsoluteTop();
scrollPanel.setScrollPosition( tableTop );
}
}
i suppose in your case it wouldn't be a click handler if you're basing
it off the history token, but hopefully this will point you in the
right direction.
On Apr 12, 7:34 am, redlaber wrote:
> I want to scroll page, generated with gwt, to some element. Its should
> be simple, but i cannt find the solution. For example: I have a
> vertical panel with two flexables. When i get the history token
> "goto2" I want to scroll my page to the second table. (Sorry for the
> terrible english).
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Re: ***Exciting Java Opportunity in Hampshire***
I would like to see a gwt jobs/recruitment/etc list. I'm not in the market now but always find it interesting to see what technologies are grouped together in job postings. And as GWT (hopefully) :) becomes more pervasive there will presumably be more of a need for a jobs list. On Apr 8, 10:33 am, Ian Bambury wrote: > I didn't really think you were allowing advertising :-), and I appreciate > the hard work that goes into moderating a group like this. > > Ian > > http://examples.roughian.com > > On 8 April 2010 15:44, Chris Ramsdale wrote: > > > > > No, it hasn't been decided. To that extent we're filtering any recruiter > > posts that have nothing to do with GWT. This post happened to slip past the > > moderation queue (Groups isn't perfect). That said, we block on average 3-4 > > recruiters per day, so let's not jump to conclusions when one makes it > > through. > > > Job posts that are GWT related are decided on a case by case basis. For the > > most part though, we block these as well. > > > -- Chris > > > On Thu, Apr 8, 2010 at 10:03 AM, Ian Bambury wrote: > > >> So has it been decided that people can advertise on this group, then? > > >> Ian > > >>http://examples.roughian.com > > >> On 7 April 2010 14:09, Benny Tech Recruiter > >> wrote: > > >>> I am currently looking for a Java Developer for the Leader in Sports > >>> and Entertainment Integration. > > >>> My client are looking to expand the development team with a new Java/ > >>> Web Developer. They are a quickly expanding company providing cutting > >>> edge applications and integrations to Live sporting events around the > >>> globe. > > >>> The position will involve becoming and active member of the software > >>> development team and taking responsibility for the implementation of > >>> key software modules. The system is a large multithreaded, multi > >>> server web system written mainly in Java. Web clients are written > >>> using GWT (Google Web Toolkit) and data is provided to them through > >>> the Spring framework. Data storage is handled by MySQL. > > >>> Successful candidates will have a proven history of developing Java > >>> software and working in a fast paced and cutting edge development > >>> environment. > > >>> Necessary skills/experience: > >>> - Java development, J2SE and some J2EE. > >>> - Database development understanding. > >>> - Development of web applications including related technologies > >>> such > >>> as CSS, javascript and JSP. > >>> - Working knowledge of Windows as a development environment and > >>> Linux > >>> as a production environment > > >>> Useful skills/experience: > >>> - Hibernate and database optimisation > >>> - Linux sysadmin > >>> - Google Web Toolkit > > >>> If you have the relevant experience for this opportunity and are > >>> looking for new opportunities please email me with your Cv to either > >>> ben.j.cul...@googlemail.com or ben.cul...@esynergy-solutions.co.uk > > >>> -- > >>> 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 >>> cr...@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-tool...@googlegroups.com. > >> To unsubscribe from this group, send email to > >> google-web-toolkit+unsubscr...@googlegroups.com >> cr...@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-tool...@googlegroups.com. > > To unsubscribe from this group, send email to > > google-web-toolkit+unsubscr...@googlegroups.com > cr...@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-tool...@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: upgrading to 2.0, problem with adding style name on click
that's awesome. thanks for the quick response!
On Apr 1, 8:50 pm, kozura wrote:
> I think you actually just want Widget sender =
> (Widget)event.getSource();, then you can continue as before..
>
> On Apr 1, 7:45 pm, "t.dave" wrote:
>
> > so i'm finally in the process of upgrading from 1.5.3 to 2.0, and
> > converting all my listeners to handlers. i have a listener class that
> > is always used in conjunction with an image - when the image is
> > clicked on the listener adds a style name indicating it's been
> > clicked.
>
> > current code, in the class implementing ClickListener:
>
> > public void onClick( Widget sender )
> > {
> > sender.addStyleName( "clickedIcon" );
> > if ( sender instanceof FocusWidget )
> > ((FocusWidget) sender).setFocus( false );
>
> > }
>
> > attempted replacement code, in class now implementing ClickHandler:
>
> > public void onClick( ClickEvent event )
> > {
> > event.getRelativeElement().setAttribute( maybe? ...);
> > event.getRelativeElement().blur();
>
> > }
>
> > presumably i can always blur an Element, and as such don't need the
> > check for a FocusWidget equivalent. however, how can i add a style
> > name? am i going to have to modify the constructor of the class and
> > pass a reference to the Image Widget?
>
> > any help on this would be much appreciated. thanks in advance!
>
> > dave
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upgrading to 2.0, problem with adding style name on click
so i'm finally in the process of upgrading from 1.5.3 to 2.0, and
converting all my listeners to handlers. i have a listener class that
is always used in conjunction with an image - when the image is
clicked on the listener adds a style name indicating it's been
clicked.
current code, in the class implementing ClickListener:
public void onClick( Widget sender )
{
sender.addStyleName( "clickedIcon" );
if ( sender instanceof FocusWidget )
((FocusWidget) sender).setFocus( false );
}
attempted replacement code, in class now implementing ClickHandler:
public void onClick( ClickEvent event )
{
event.getRelativeElement().setAttribute( maybe? ...);
event.getRelativeElement().blur();
}
presumably i can always blur an Element, and as such don't need the
check for a FocusWidget equivalent. however, how can i add a style
name? am i going to have to modify the constructor of the class and
pass a reference to the Image Widget?
any help on this would be much appreciated. thanks in advance!
dave
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Re: Server side: start independent Thread at deploy on server
just initialize the thread in the servlet's init() method and shut it
down in the servlet's destroy() method. then just make sure that the
servlet is started on server startup by adding this to the servlet
definition in your web.xml:
i think that should be the same regardless if you're running on
tomcat, jetty, or whatever.
On Mar 25, 1:26 pm, "dolcra...@gmail.com" wrote:
> You would start it any way you would normally do such things in Java/
> Servlets (not a GWT specific question). Maybe something like
> static Thread mythread = new Thread(){};
>
> mythread.run();
> if you need this to start on server startup you need to have this
> hooked into whatever server you're using (ie how to do this on tomcat
> will be different from jetty/websphere/jboss/etc)
>
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Re: GWT RPC error
it looks like you're referencing code on the GWT client side that the GWT compiler doesn't support. this kind of problem can be tricky, because it looks like it compiles ok in eclipse. remember that your GWT client packages will end up in the browser as javascript, and so GWT only supports only a subset of the JRE in the com.x.client.* packages. i'd check for any references to Socket: java.net.Socket is a restricted class as well, check the JRE emulation reference for supported client-side java packages. http://code.google.com/webtoolkit/doc/latest/RefJreEmulation.html On Dec 23, 7:00 am, SergeZ wrote: > Hi everybody!!! Please, help me in solving my problem!!! > > I have the standard simple project. The only customization which is > had been done by me is DB connection (actually Oracle 10g DataBase). > Of course I use the RPC mechanism. Data, retrieved from DB returning > from method with String type. When it's time to do for applicaton an > asyncronous method call, i receiving the such error message: > > Initializing AppEngine server > The server is running athttp://localhost:/ > 23.12.2009 12:33:21 > com.google.appengine.tools.development.ApiProxyLocalImpl log > SEVERE: [1261571601567000] javax.servlet.ServletContext log: Exception > while dispatching incoming RPC call > com.google.gwt.user.server.rpc.UnexpectedException: Service method > 'public abstract java.lang.String > org.kamal.hello.client.HelloWorld.client.GreetingService.greetServer > (java.lang.String)' threw an unexpected exception: > java.lang.NoClassDefFoundError: java.net.Socket is a restricted class. > Please see the Google App Engine developer's guide for more details. > at com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure > (RPC.java:378) > at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse > (RPC.java:581) > at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall > (RemoteServiceServlet.java:188) > at com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost > (RemoteServiceServlet.java:224) > at com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost > (AbstractRemoteServiceServlet.java:62) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) > at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java: > 487) > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > (ServletHandler.java:1093) > at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter > (ServeBlobFilter.java:51) > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > (ServletHandler.java:1084) > at > com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter > (TransactionCleanupFilter.java:43) > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > (ServletHandler.java:1084) > at com.google.appengine.tools.development.StaticFileFilter.doFilter > (StaticFileFilter.java:121) > at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter > (ServletHandler.java:1084) > at org.mortbay.jetty.servlet.ServletHandler.handle > (ServletHandler.java:360) > at org.mortbay.jetty.security.SecurityHandler.handle > (SecurityHandler.java:216) > at org.mortbay.jetty.servlet.SessionHandler.handle > (SessionHandler.java:181) > at org.mortbay.jetty.handler.ContextHandler.handle > (ContextHandler.java:712) > at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java: > 405) > at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle > (DevAppEngineWebAppContext.java:70) > at org.mortbay.jetty.handler.HandlerWrapper.handle > (HandlerWrapper.java:139) > at com.google.appengine.tools.development.JettyContainerService > $ApiProxyHandler.handle(JettyContainerService.java:352) > at org.mortbay.jetty.handler.HandlerWrapper.handle > (HandlerWrapper.java:139) > at org.mortbay.jetty.Server.handle(Server.java:313) > at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java: > 506) > at org.mortbay.jetty.HttpConnection$RequestHandler.content > (HttpConnection.java:844) > at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644) > at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:205) > at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) > at org.mortbay.io.nio.SelectChannelEndPoint.run > (SelectChannelEndPoint.java:396) > at org.mortbay.thread.BoundedThreadPool$PoolThread.run > (BoundedThreadPool.java:442) > Caused by: java.lang.NoClassDefFoundError: java.net.Socket is a > restricted class. Please see the Google App Engine developer's guide > for more details. > at com.google.appengine.tools.development.agent.runtime.Runtime.reject > (Runtime.java:51) > at
Re: Tomcat RPC Failure on Lost Client Connections.
there's a bit of content on the web about this problem. if memory serves it was at least partly blamed on the RPCServletUtils.readContentAsUtf8() method - that sometimes the request doesn't make it to the server. this was blamed on the vagaries of the internet. i have it all the time in my web app - probably at least once a day, but have been unable to replicate it or track down the exact cause. what version of GWT are you running? i'm still on 1.5.3 - my hope is that once i finally get around to rewriting ALL my listeners into a handler bus and upgrade to 1.7 (or even 2.0 by the time i get to it), this problem will be solved. -- 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-tool...@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=.
Re: How to capture function keys ?
i'm not 100% sure how this works, but will throw it out there in case somebody knows or can figure it out. the idea of a hot key was floated for my web app. on a forum a guy offered to create browser plugins for my app that would be able to capture function keys. here's some of the info he sent: "For the suggestion of having a hotkey... if you expose a function to do this in the pages javascript I can create Opera, FireFox, and IE plugins for the site to provide this functionality." "The principal works this way though, just as you embed a flash player/ movie into a website. You’d, for example, have this code embedded: And voila! The plugin is now integrated with that page! So with the plugin now embedded, I could expose some functions for you to set what hotkeys are associated to JavaScript functions. So for example you’d then have this code: var plugin = document.getElementById(‘appname-hotkey’); plugin.setHotKey(“F5”, “nextStep”); plugin.setHotKey(“F4”, “prevStep”); That way whenever F4 or F5 are hit by themselves, they will go to the next step and previous step respectively. This could integrate with your back-end by allowing users to set their hot key preferences when they login. The other perk is that you can easily embed detection if the plugin is loaded, and if it isn’t do nothing. That way if the plugin isn’t installed the page will behave as normal." Anybody know anything about creating browser plugins? --~--~-~--~~~---~--~~ 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: Help - my web site based on GWT fails to load in IE8
i had IE8 issues when it first came out. i'm still on GWT 1.5.3 - thought later versions should play nicer with IE8, but what fixed my issue was adding the following to the html host page: not sure if that's a good long term solution, but made my app go from non-functional to functional. hope that helps On Sep 25, 9:06 am, Itzik Yatom wrote: > I have just finished to develop a web site that is mostly written in > GWT. During a non-trivial load that contains many panels and widgets > build, asynchronous server requests for grabbing information from DB > and XML file contents, it fails in IE8 on adding the main Composite > object to the root panel with unclear JavaScript message. > In Firefox and IE7 it works fine. How can I get information about the > failure cause ? and this is, actually, a general question - How can I > get information where is the failure in my Java classes when at > runtime all Java classes are compiled to JS ? > > It looks like a nightmare when everything works at development > environment where you can debug the Java code but it fails on runtime > with an error that tells you nothing about the real problem. > > Thanks in advance > Itzik Yatom --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
