Working with RPC - How To Organize Classes To Interact With Server
I'm working on my first GWT project, which also happens to be somewhat substantial (at least for me). The project essentially is used for creating weekly, monthly, midterm, yearly, etc. reports for students. The application seems fairly simple as it only seems to consists of two main things - UI with a bunch of forms and storing / retrieving that information from a database on the server. At first I considered using something as simple as FormPanel, which would easily allow me to submit information to the server. However, it needs to be a little more interactive than FormPanel could offer, in that it needs to be able to pre-populate some data based on what is currently in the database (thus gathering that data before displaying the form is needed). So I've read up on RPC, and while the process seems easy enough (a lot to wrap your head around at once, but it's all easy to do individually I think), it seems a LOT of classes and interfaces must be written. We need a synchronous and asynchronous interfaces, implementations of the interface on the server, serializable data objects to pass between client and server, among others (for example, creating a class with Facade pattern to make generating and using that RPC proxy easier) - for each service that we interact with. In all, it seems like we are looking at around 5 classes / interfaces minimum for each service no matter how small or what it does. In my case, I do the same thing over and over again (either pull some info from database table, or add to database table), but just using different data (weekly data, monthly data, midterm data, yearly data, etc). Does anyone know a better way for me to do this than end up with tons of small files? For example, would it make sense to toss all this into one or two 'services' thus reducing the amount of files needed for server interaction? Or, is it standard to go ahead and go through all of these steps for every single one? Most texts I have read thus far that explain RPC provide good examples, but they are all separate, individual examples rather than part of a group of RPC calls. --~--~-~--~~~---~--~~ 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: cannot run applicationCreator under MS Vista - IE
How is it not working? How are you trying to run them? They are for use in the command prompt, so you will need to use that. Also be sure that you either specify the full location of applicationCreator (example: C:\gwt\applicationCreator) when running the command, or place it in your PATHS location. If you open command prompt and run applicationCreator and it says the file cannot be found or anything along those lines, then you are not accessing it properly. It shouldn't be blocked by other programs. I haven't used Vista all too much, but from my brief experience it may prompt you after you enter the command and you will have to tell it to let the program run. On Feb 15, 9:56 am, muhphn wrote: > Hi, > > I downloaded GWT dev package and trying to run applicationCreater and > sample scripts. It appears none of them work at all. Could this be > blocked by the IE or anti-virus program? --~--~-~--~~~---~--~~ 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: Third party libraries for GWT
Thanks for the point of clarification on Ext GWT...my bad. Our organization doesn't do the whole open source gig (long story) so I've kind of checked out of all the variations. Yes, they are GPL v3 Haven't actually looked at the connection between DWR and GWT. Worth a look! On Feb 15, 6:22 pm, Shawn Brown wrote: > Hello, > > > Ext GWT is a > > commercial, paid for library, Smart GWT is free and open source. > > This is currently inaccurate. EXT GWT is GPL v3. It is dual licensed > actually so if you do need a commercial license... > > http://www.extjs.com/products/license-faq.php > > > If your organization won't > > pay for their libraries, then Smart GWT is the only way to go. If > > your organization can't or won't use open source type of stuff, then > > Ext GWT is the way. > >The Smart GWT guys are also working on some interesting > >server side linkage to the UI components. > > I just use the reverse AJAX feature in DWR and push data out from the > server to GWT. DWR has a pretty good reputation in terms of security > so that solution is fine for me. > > Shawn --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
How to deploy GWT App?
Hi I can't find this anywhere, but have found numerous vague references. Can someone tell me What files to copy where to deploy a GWT project? My project/app compiles great, runs great. It runs great when I do the compile/browse. I see several files under projects/projectname/www/ com.blah.blah.blah.blah including a number of .cache.html, a nocache.js file, etc. But no xml file. I have tomcat running fine, and have a webapps directory, from which I'm able to browse to jsp-examples and see everything running and etc. SO, WHAT do I copy WHERE to make this work? What other files if any do I move or tweak too? 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 -~--~~~~--~~--~--~---
Re: How to recognize hibernate exception on the client side
Yupp...I would suggest the same too On Feb 15, 5:22 am, jhulford wrote: > You can catch it in your RPC service implementation (server-side) and > then rethrow it to the client as your own Exception type that's > declared as part of your RPC method's signature. If I remember right, > you can inspect the hibernate exception types to determine what sort > of failure occurred. > > On Feb 13, 7:32 am, Dessorry wrote: > > > Hi > > my app has a service that write record in a database, how can i > > recognize hibernate exception such as record already wrote on the db > > or not-null field with null value.. > > If i watch the throwable arg of onfailure methpod of async callback i > > see that different hibernate exception have the sam exeption number: > > 500... > > > 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 -~--~~~~--~~--~--~---
Connecting to site 127.0.0.1
This one has been bugging me for a while now, and I haven't seen anything around like this one. I have a Eclipse+Cypal Studio project that has grown to a reasonable size, and while testing I still use the GWT hosted mode to run. My machine doesn't have anything else running on port , but occasionally when I start the project, the hosted browser's status bar just says "Connecting to site at 127.0.0.1" but nothing happens (browser window is blank). I'd have to close GWT and restart it for it to work (sometimes 5 or 6 times before it works). I have no clue what would be causing this or even where to start to look to try and fix it. This project uses Hibernate and GWT-Ext, if that helps at all. --~--~-~--~~~---~--~~ 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: Problem with Generics and Serialization of Primitive Type Array Fields
This is all a bit tricky.
Just thinking laterally for a second. Have you thought about using
Collections instead of arrays?
On Feb 10, 11:32 am, jsegal wrote:
> Unfortunately, this won't work due to the bug I referenced earlier
> (sorry, I must have cut it out of the quoted section).
>
> This will compile, but will throw a ClassCastException due to a known
> bug (http://code.google.com/p/google-web-toolkit/issues/detail?
> id=1822):
> new MySerializableObject(new Integer[] {1})
>
> As suggested in the issue comments, it's possible to work around this
> by creating another class, which is a reasonable way to solve the
> problem for arrays of most types:
>
> class MySerializableArrayObject extends
> MySerializableObject
> {
> private Serializable serializableArrayField[];
>
> void MySerializableObject(T[] value)
> {
> serializableArrayField= value;
> }
>
> T[] getField()
> {
> return serializableArrayField;
> }
>
> }
>
> The class above makes this work (for Integer, or any other non-
> primitive type):
> new MySerializableArrayObject(new Integer[] {1});
>
> . . .But won't fix the problem for primitive types, since it is not
> possible to type the array version of the object for use with
> primitives:
> new MySerializableArrayObject(new int[] {1}); //This won't
> compile, of course
> new MySerializableArrayObject(new int[] {1}); //Nor will
> this, since int[] can't be autoboxed to Integer[]
>
> If you're suggesting that I can replace all uses of int[] with Integer
> [] in the existing code (at least the parts that need to interact with
> this class), you are technically correct. This will, however, leave a
> significant maintenance hazard for anyone else working on the app. I
> can document the problem, but given the context in which these classes
> are used, it would be tough to do so in enough places that anyone
> wanting to use primitive arrays would notice it. That's why I'm
> looking for a better work-around.
>
> I'm currently planning to make variations on MySerializableArrayObject
> to specifically handle each type of primitive array. I don't think
> this will cover some edge-cases, such as multidimensional arrays, but
> it looks like it may be the best solution available for now. If
> someone can suggest a better one, I'm still very interested.
>
> On Feb 9, 3:53 pm, Dan Ox wrote:
>
> > Have you tried:
> > new MySerializableObject(new Integer[] {1});
>
> > ?
>
> > On Feb 10, 4:13 am, jsegal wrote:
>
> > > You're correct that primitives themselves will not work, but they can
> > > be autoboxed using their Object versions. My problem is with *arrays*
> > > of primitive types, which *can* be used as parameters for for generic
> > > classes, and should (according to everything I've found on the
> > > subject) be serializable.
>
> > > You're right that this will not compile:
> > > new MySerializableObject(1);
>
> > > This will compile, however:
> > > new MySerializableObject(new int[]{1});
>
> > > As will this (due to autoboxing):
> > > new MySerializableObject(1);
>
> > > On the other hand, arrays cannot be autoboxed, so this will not
> > > compile:
> > > new MySerializableObject(new int[]{1});
>
> > > On Feb 6, 6:10 pm, Ben Tilford wrote:
>
> > > > Primitives do not extend Object and cannot implement Serializable. You
> > > > should use the Object versions of primitives (i.e. use Integer instead
> > > > of
> > > > int)
> > > > I don't think the code would even compile if you tried to use a
> > > > primitive
> > > > with generics.
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Re: how to access objects from another frame?
Can you have links to pages other than your GWT application page load in an iframe created within your application? This way you can allow users to navigate your site without navigating out of the application. On Feb 9, 10:51 pm, asdf_asdf wrote: > My original design was similar to what you suggest. I had everything > in one application. > The reason I am asking about interframe communnication is to ensure > that the cache does not have to load all the information all over > again causing long start-up time (since there are a lot of objects to > get from the server and store in cache) if a user leaves this exact > webpage to go say to the feedback section of the same website but then > comes back. The active cash implementation should be hidden somewhere > and keep on working so long the user has one of the website's pages > open. > > On Feb 9, 4:19 am, Dan Ox wrote: > > > Is there a reason why you cannot implement this using a single frame > > containing two GWT scroll panels. > > > In one pannel is all your regularly refreshing content, in the other > > is the content the user is interested in. This way your object model > > is shared across the application and there is only a need for one. > > > You are correct in your understanding of entry points. One entry point > > specifies on GWT application. Using multiple frame would require > > multiple GWT applications. You could potentially share data across the > > applications using native javascript. But this seems like a very > > complex and error-prone implementation to me. Keeping your whole user > > interface in one application is the most logical and simplest > > approach. > > > On Feb 9, 11:35 am, asdf_asdf wrote: > > > > His, > > > > Will try to follow some ideas > > > fromhttp://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa.. > > > and "GWT in Action" to share objects across an iframe. Maybe anyone > > > has already tried this with frames and could share experience? > > > > One more thing regarding interframe communication. I feel a somewhat > > > confused about EntryPoints. Is a single EntryPoint essentially meant > > > to correspond to a distinct webpage? If so, than I would need a > > > separate EntryPoint class for every html page needing GWT support... > > > what would be a proper way than to have an iframe that holds an active > > > cache and does not get reloaded when user clicks a link. > > > > My initial approach would have been to have an EntryPoint with logic > > > for the active cache defining an iframe to host other pages (that > > > would do actual presentation and utilize data from the active cache). > > > Could you please suggest if that would be a correct approach? What > > > would be the way than to specify a webpages that they should be > > > enbedded in a iframe element of the existing page? > > > > Thanks. > > > > I feel somewhat confused about architecture > > > > On 5 Feb., 23:29, asdf_asdf wrote: > > > > > Thanks Damien, > > > > > No, unfortunately plugins are not an acceptable solutions. I feel > > > > nevertheless that there should be a way to communicate between frames. > > > > Preferably without JSNI? > > > > > On 5 Feb., 18:48, Damien Picard wrote: > > > > > > If you can accept browser's plugins in your project, take a look at > > > > > Google > > > > > Gears. With this, you can take a better control of locally stored > > > > > data and > > > > > much more ... > > > > > >http://gears.google.com/ > > > > > > 2009/2/5 asdf_asdf > > > > > > > His, > > > > > > > Read some posts in the group and still wondering if implementing > > > > > > such > > > > > > a scenario would be possible with GWT: > > > > > > A web page is served which contains two frames - one for presenting > > > > > > the stuff and the other one to constantly make requests to the > > > > > > server > > > > > > (a timer) and maintain latest of data (lots of objects, so only the > > > > > > new data is added / removed and not everything at once). > > > > > > > Is there a way for one frame to get a reference to the other where > > > > > > the > > > > > > current data resides? The obvious benefit would be that when user > > > > > > clicks a link and goes to a different page the data is still in the > > > > > > other frame and there is no need to load everything over again. Has > > > > > > someone maybe already done that or experienced a similar challenge? > > > > > > > That's my view on the problem. But maybe there can be another way to > > > > > > retain pieces of working logic and current data without frames when > > > > > > a > > > > > > user jumps to physically distinct html page. > > > > > > > Many thanks, > > > > > > Denis --~--~-~--~~~---~--~~ 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
Re: howto? return types in jsni methods
Hi,
> I am struggling with return types in methods implementing native
> javascript interfaces. Returning strings is no problem, but calling a
> method that returns a map
>
>public native Map getMap() /*-{
>return $wnd.parent.__getMap();
>}-*/;
>
> works only in hosted mode (!) and either throws a classcast exception
> or returns null.
>
I don't know how to return a Map directly but you could try to return
a JavaScriptObject
see
http://google-web-toolkit.googlecode.com/svn/javadoc/1.5/com/google/gwt/core/client/JavaScriptObject.html
see
http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5&s=google-web-toolkit-doc-1-5&t=DevGuideMarshaling
or what about:
JavaScript Overlay Types
Suppose you're happily using JSNI to call bits of handwritten
JavaScript from within your GWT module. It works well, but JSNI only
works at the level of individual methods. Some integration scenarios
require you to more deeply intertwine JavaScript and Java objects --
DOM and JSON programming are two good examples -- and so what we
really want is a way to interact directly with JavaScript objects from
our Java source code. In other words, we want JavaScript objects that
look like Java objects when we're coding.
GWT 1.5 introduces JavaScript overlay types to make it easy to
integrate entire families of JavaScript objects into your GWT project.
see
http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5&s=google-web-toolkit-doc-1-5&t=DevGuideOverlayTypes
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Re: Unable to find/load mapped servlet class
Hi, More info is required to ans this Question 1. Are you running in hosted mode? 2. How are you running the app? Eclipse/IDE or externally? If you are running the app deployed in an external server, then I think you did not include the server libs jar. GWT compiles only the client jars. On Feb 12, 11:00 am, ytbryan wrote: > hi all, > > i compiled my gwt application that has rpc in it. > > after that i try running it but it gives me > > com.google.gwt.user.client.rpc.StatusCodeException: Unable to find/ > load mapped servlet class > 'com.tribling.gwt.test.mysqlconn.server.MySQLConnServiceImpl' > > can someone advices me what is happening? --~--~-~--~~~---~--~~ 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: Third party libraries for GWT
Hello, > Ext GWT is a > commercial, paid for library, Smart GWT is free and open source. This is currently inaccurate. EXT GWT is GPL v3. It is dual licensed actually so if you do need a commercial license... http://www.extjs.com/products/license-faq.php >If your organization won't > pay for their libraries, then Smart GWT is the only way to go. If > your organization can't or won't use open source type of stuff, then > Ext GWT is the way. >The Smart GWT guys are also working on some interesting >server side linkage to the UI components. I just use the reverse AJAX feature in DWR and push data out from the server to GWT. DWR has a pretty good reputation in terms of security so that solution is fine for me. Shawn --~--~-~--~~~---~--~~ 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: How to debug/resolve RPC call problem?
Thank you, Gregor. This is good counsel. I have found there is a "- noserver" arg in the nbproject/build-gwt.xml file, in target "debug- connect-gwt-shell". There is also a target "debug-connect-gwt-shell- hosted" which seems not to include this arg, but I cannot figure out how to run that target either from within NB nor from the command line. I will peel off to go over to the gwt4nb forums to get into discussions there about this issue. Before I do, can you now assure me that my code seems correct to you for implementing a standard GWT RPC setup and call? Thanks very much for your time and good counsel. I will come back to this topic later to report - hopefully - a successful conclusion. On Feb 15, 5:16 pm, gregor wrote: > It looks like NB might be setting things up to run GWT hosted mode > with -noserver option deploying to glassfish. In that case you have to > make sure everything is set up properly for deployment to glassfish > (i.e. as external server), including web.xml etc. Normally one would > not recommend running -noserver option unless you had to, for example > if you are using EJB's or a non-java back end. It may be NB does this > because it is easier to debug hosted mode server code using glassfish > + -noserver. > > Probably simplest thing is to consult NB forums for clues on how to > stop NB doing this, i.e. get it to run hosted mode normally using > embedded Tomcat server. There should be a script somewhere you can > edit, or a way to install your own. The script you are looking for > should have "com.google.gwt.dev.GWTShell" in it after a long classpath > statement and one of the switches following should be -noserver as > well as -style and -out etc if this theory is correct. > > What IDE's do is simply write versions of standard GWT start up > scripts for you inserting their own choice of parameters, hiding the > details. They are trying to be helpful, but often it just causes > problems.The trick is to find out how to edit these scripts and take > control of them. > > Same is true of deploying your app in web mode to production/test > server IMO. It is much easier in the long run if you write your own > ant script to build a WAR rather than let your IDE do it for you. This > is especially true in team situation where different IDE settings can > cause all sorts of problems otherwise. > > On Feb 15, 12:51 am, BobM wrote: > > > When I run in web mode, NB starts Firefox. Both hosted mode and web > > mode run against "localhost:8080/GWTwHibernate", so I think both are > > running using the application deployed to glassfish. > > . > > > On Feb 14, 6:22 pm, BobM wrote: > > > > Yes. It certainly seems to be a glasfish message, but it is hosted > > > mode. I am using netbeans 6.5 and glassfish v3 prelude. When I click > > > "Debug main project" in NB, it deploys to glassfish but brings up the > > > hosted mode shel and runs the app in a sub shell. > > > > On Feb 14, 5:28 pm, gregor wrote: > > > > > That looks like a glassfish message? Are we talking about hosted mode > > > > here or web mode? > > > > > On Feb 14, 8:07 pm, BobM wrote: > > > > > > This is how the service is called: > > > > > > selectionSearchService.findAllLikeThis(serviceProvider, > > > > > selectionSearchCallBack); > > > > > > How the service is setup in the module xml file: > > > > > >> > > >class="org.bcs.server.SelectionSearchServiceImpl" /> > > > > > > this is the report from caught.getMessage(): > > > > > !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" > > > > > "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>GlassFish/v3 > > > > > - Error report HTTP Status 404 - > > > > h1>type Status reportmessage > > > > p>descriptionThe requested resource () is not available. > > > > p>GlassFish/v3 > > > > > > There are no log entries showing on the hosted mode shell window; it > > > > > is clear. --~--~-~--~~~---~--~~ 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: howto? return types in jsni methods
On Sun, Feb 15, 2009 at 8:09 PM, Eric Ayers wrote:
> Hi Denis,
>
> Unfortunately, a JavaScript Map does not equal a Java Map object. You
> can look at the GWT 1.5 source in some of the wrapper helper classes
> such as com.google.gwt.core.client.JsArray, JsArrayString, ... for
> some models on how to wrap a primitive Java type.
I meant to say a complex type...
>
> -Eric.
>
> On Sun, Feb 15, 2009 at 7:38 PM, denis56 wrote:
>>
>> Hello everyone,
>>
>> I am struggling with return types in methods implementing native
>> javascript interfaces. Returning strings is no problem, but calling a
>> method that returns a map
>>
>>public native Map getMap() /*-{
>>return $wnd.parent.__getMap();
>>}-*/;
>>
>> works only in hosted mode (!) and either throws a classcast exception
>> or returns null.
>>
>> Could anyone shed light on that issue. I remember reading a note
>> somewhere that jsni methods cannot return complex types but did not
>> really get the way around and alerted by absolutely intended behavior
>> in hosted mode.
>>
>> Thanks
>>
>> >>
>>
>
>
>
> --
> Eric Z. Ayers - GWT Team - Atlanta, GA USA
> http://code.google.com/webtoolkit/
>
--
Eric Z. Ayers - GWT Team - Atlanta, GA USA
http://code.google.com/webtoolkit/
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Re: howto? return types in jsni methods
Hi Denis,
Unfortunately, a JavaScript Map does not equal a Java Map object. You
can look at the GWT 1.5 source in some of the wrapper helper classes
such as com.google.gwt.core.client.JsArray, JsArrayString, ... for
some models on how to wrap a primitive Java type.
-Eric.
On Sun, Feb 15, 2009 at 7:38 PM, denis56 wrote:
>
> Hello everyone,
>
> I am struggling with return types in methods implementing native
> javascript interfaces. Returning strings is no problem, but calling a
> method that returns a map
>
>public native Map getMap() /*-{
>return $wnd.parent.__getMap();
>}-*/;
>
> works only in hosted mode (!) and either throws a classcast exception
> or returns null.
>
> Could anyone shed light on that issue. I remember reading a note
> somewhere that jsni methods cannot return complex types but did not
> really get the way around and alerted by absolutely intended behavior
> in hosted mode.
>
> Thanks
>
> >
>
--
Eric Z. Ayers - GWT Team - Atlanta, GA USA
http://code.google.com/webtoolkit/
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howto? return types in jsni methods
Hello everyone,
I am struggling with return types in methods implementing native
javascript interfaces. Returning strings is no problem, but calling a
method that returns a map
public native Map getMap() /*-{
return $wnd.parent.__getMap();
}-*/;
works only in hosted mode (!) and either throws a classcast exception
or returns null.
Could anyone shed light on that issue. I remember reading a note
somewhere that jsni methods cannot return complex types but did not
really get the way around and alerted by absolutely intended behavior
in hosted mode.
Thanks
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Re: How to debug/resolve RPC call problem?
It looks like NB might be setting things up to run GWT hosted mode with -noserver option deploying to glassfish. In that case you have to make sure everything is set up properly for deployment to glassfish (i.e. as external server), including web.xml etc. Normally one would not recommend running -noserver option unless you had to, for example if you are using EJB's or a non-java back end. It may be NB does this because it is easier to debug hosted mode server code using glassfish + -noserver. Probably simplest thing is to consult NB forums for clues on how to stop NB doing this, i.e. get it to run hosted mode normally using embedded Tomcat server. There should be a script somewhere you can edit, or a way to install your own. The script you are looking for should have "com.google.gwt.dev.GWTShell" in it after a long classpath statement and one of the switches following should be -noserver as well as -style and -out etc if this theory is correct. What IDE's do is simply write versions of standard GWT start up scripts for you inserting their own choice of parameters, hiding the details. They are trying to be helpful, but often it just causes problems.The trick is to find out how to edit these scripts and take control of them. Same is true of deploying your app in web mode to production/test server IMO. It is much easier in the long run if you write your own ant script to build a WAR rather than let your IDE do it for you. This is especially true in team situation where different IDE settings can cause all sorts of problems otherwise. On Feb 15, 12:51 am, BobM wrote: > When I run in web mode, NB starts Firefox. Both hosted mode and web > mode run against "localhost:8080/GWTwHibernate", so I think both are > running using the application deployed to glassfish. > . > > On Feb 14, 6:22 pm, BobM wrote: > > > Yes. It certainly seems to be a glasfish message, but it is hosted > > mode. I am using netbeans 6.5 and glassfish v3 prelude. When I click > > "Debug main project" in NB, it deploys to glassfish but brings up the > > hosted mode shel and runs the app in a sub shell. > > > On Feb 14, 5:28 pm, gregor wrote: > > > > That looks like a glassfish message? Are we talking about hosted mode > > > here or web mode? > > > > On Feb 14, 8:07 pm, BobM wrote: > > > > > This is how the service is called: > > > > > selectionSearchService.findAllLikeThis(serviceProvider, > > > > selectionSearchCallBack); > > > > > How the service is setup in the module xml file: > > > > > > > > class="org.bcs.server.SelectionSearchServiceImpl" /> > > > > > this is the report from caught.getMessage(): > > > > !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" > > > > "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>GlassFish/v3 > > > > - Error report HTTP Status 404 - > > > h1>type Status reportmessage > > > p>descriptionThe requested resource () is not available. > > > p>GlassFish/v3 > > > > > There are no log entries showing on the hosted mode shell window; it > > > > is clear. --~--~-~--~~~---~--~~ 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: Timer / Progress bar on a form to show countdown.
Will the Timer in GWT help? On Feb 14, 12:13 pm, Vish wrote: > Hi All, > I'm trying to show a countdown timer on a form which displays the time > left for a discussion on some topic mentioned on that form. > I'm not able to decide or figure out the best way to do it, also I > couldn't find any earlier post discussing this. > If someone can help me suggesting this it will be really helpful and I > would be very thankful. > Regard > Vish. --~--~-~--~~~---~--~~ 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: ServiceImpl and existing java app
I m not sure I completely understand. But can you store the instance in the servlet context and retrieve it for subsequent requests. On Feb 15, 2:29 pm, hermis wrote: > Thanks for the reply Shaffer. > > The problem is my app needs to run completely independently from the > client. > > As is; the application will be launched once a web client makes an RPC > request. > > Let me try to clarify as I may have been misunderstood. > > I am developing a GUI based java application which will have a web > server embedded in it - Jetty in this case. > > Once I launch the application, it will act as a web server and > therefore web browsers will be able to connect to it and get the GWT > app and execute it. > > The GWT app needs to make RPC to the java app to retrieve information. > > Now, the ServiceImpl is instantiated once the first RPC call is made > (is this wrong?) it needs to somehow refer to the already running app > and call a method from it without re-instantiating a new version. > > Basically I'm trying to connect my webapp to an already executing java > app. > > There has got to be a way to do this, right? > > Thanks. > > On Feb 14, 5:24 pm, "mikedshaf...@gmail.com" > wrote: > > > If I'm understanding what you're attempting correctly, that's the > > easiest way to do it. Your ServiceImpl is still running in pure Java, > > and that's where an existing Java app can live. Your client will be > > compiled out into Javascript, so if you wanted your existing Java > > classes to be available on the client, the will be subject to the GWT > > compilation process. An amazing and powerful process, but it might > > yield references to Java libraries that are not compatible with the > > GWT Java/Javascript library. > > > Good luck! > > > Later, > > > Shaffer > > > On Feb 14, 9:21 am, hermis wrote: > > > > Hello all, > > > > I am developing a Java application which will eventually embed a HTTP > > > server and then act as the server for my GWT application. > > > > I need help with getting the GWT app to access a method in the Java > > > app :) > > > > Until now, just for the sake of developing I have been instantiating > > > my java app in the ServiceImpl and calling the required method from > > > there. > > > > What is the proper way of doing this? How do I connect the ServiceImpl > > > to my app? > > > > Thanks 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: How to debug/resolve RPC call problem?
Hi, When you deploy it in the server do you have a separate web.xml? In the web.xml, Do you have the GWT shell servlet as the mapped to /* url? Are you using any security filters, mapped to the service urls? Is there any other services working in your app or do you see the same issue with all the remote services? Is the server started in debug mode?... if so try putting break points in the RemoteServiceServlet.doPost(...) and RemoteServiceServlet.processCall(...) methods. On Feb 14, 7:22 pm, BobM wrote: > Yes. It certainly seems to be a glasfish message, but it is hosted > mode. I am using netbeans 6.5 and glassfish v3 prelude. When I click > "Debug main project" in NB, it deploys to glassfish but brings up the > hosted mode shel and runs the app in a sub shell. > > On Feb 14, 5:28 pm, gregor wrote: > > > That looks like a glassfish message? Are we talking about hosted mode > > here or web mode? > > > On Feb 14, 8:07 pm, BobM wrote: > > > > This is how the service is called: > > > > selectionSearchService.findAllLikeThis(serviceProvider, > > > selectionSearchCallBack); > > > > How the service is setup in the module xml file: > > > > > > class="org.bcs.server.SelectionSearchServiceImpl" /> > > > > this is the report from caught.getMessage(): > > > !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" > > > "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd";>GlassFish/v3 > > > - Error report HTTP Status 404 - > > h1>type Status reportmessage > > p>descriptionThe requested resource () is not available. > > p>GlassFish/v3 > > > > There are no log entries showing on the hosted mode shell window; it > > > is clear. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
"undefined" error
I got an error in which the server side finishes processing but the
information does not load into the front end. In Safari, I turned on
the Developer menu and looked at the Console. It shows an error on
that page that says "undefined" on line 866 of
http://my.domain.com/***/some-big-number.cache.html. When I click on
that error from the console, it brings me to that line which looks
like the following:
** snip
function jI(e,d,c,h){hI();var a,b,f,g;if(e===null){throw eI(new dI
(),'Unable to parse null');}b=oJ(e);f=b>0&&iJ(e,0)==45?1:0;for
(a=f;ah){throw eI(new dI(),'The
string '+e+' exceeds the range for the requested data type');}return
g;}
* snip
It's pretty cryptic generated code from GWT. I imagine it means
there's an undefined variable or function. Any idea how to track that
down or better yet, any idea what I might have done to cause it?
We're using GWT 1.4.something
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Re: GWT Serialization issue with detachable JDO class
Unfortunately, the GWT serialization process is not really neither documented nor extensible :-( I opened a RFE about it (http://code.google.com/p/google-web-toolkit/ issues/detail?id=1291&can=1), but it is still marked as new an no one seems to care about it. That's why the solution implemented on Gilead seems to me the only one compatible without modifying GWT source code. Note that BlazeDS (the serialization library for Flex framework) has been *thought* to be extensible and provides extensions points with adapters and factory concept. I would really hope that GWT developers will be inspired by it when they will refactor the RPC serialization process. Regards Bruno On 15 fév, 01:37, Prempena wrote: > Yes, I've read in detail all the Gilead documentation and also tried > the examples. Good job indeed! But it is a pity to have to duplicate > an object already available to be used at the client side, just > because of serialization issues. We should be able to customize the > GWT serialization process in order to have a completely opened data > transfer between the server and the client. Do you know if there is > some detailed documentation about the GWT serialization? > > On 14 fév, 21:07, noon wrote: > > > Hi, > > > It really looks like similar issues with Hibernate entities (failure > > on GWT serialization). > > The solution I implemented on Gilead library (http:// > > gilead.sourceforge.net) is based on beanlib, that clones your entities > > to make them acceptable to GWT serializer. > > > Hope this helps > > Bruno > > > On 14 fév, 13:18, Prempena wrote: > > > > Hi, > > > > I would like to be able to use JDO objects, persisted by Datanucleus, > > > directly in the GWT client, after the class has been serialized from > > > the server to the client via the GWT serialization mechanism. > > > > It works fine when working with transient JDO objects. I'm able to > > > move the object back and forth between the client and the server > > > without any issue. > > > > Unfortunately, when the class is tagged as detachable (with the goal > > > to allow the update of the object in the datastore when coming back to > > > the server), the GWT Serialization doesn't work, due to some objects > > > added by the enhancement process: Object[] jdoDetachedState. > > > > Of course, I would like to avoid JDO Object copy to a POJO > > > serializable by GWT: it is waste of time and painful to do. > > > > Any Idea to help me to find a solution or a workaround to solve this > > > issue? > > > > Thanks in advance,- Masquer le texte des messages précédents - > > > - Afficher le texte des messages précédents - --~--~-~--~~~---~--~~ 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: Code refactoring to minimize listeners & decoupling actions from view class
I take it you mean:
http://martinfowler.com/eaaDev/SupervisingPresenter.html
I confess to having done nothing like as much as I probably should
have with regard to testing GWT UI components. But I'm working on a
bigger app now, so I have been thinking about it. A couple of points
occurred to me:
A GWT component is not a Java class, it is a javascript program
manipulating the browser DOM. Much UI logic involves CSS, for example
switching styles, etc so it would be hard to create a "Test Double" in
the manner Fowler describes. In fact the GWT dev shell already *is* a
test double in many ways. For this reason I am not sure that
Supervising Controller affords the same advantages for testing in GWT
as it might in Swing for example.
So I am looking at a model something like this: Put components (or
batches of closely related components) into separate modules (there is
no overhead in either dev or production for this AFAIK). Make a test
Entrypoint class in a separate module (e.g.MyComponent_test.gwt.xml)
for each of these component modules so they can be individually test
driven. Use the GWTTestCase Junit extension to drive the component
tests via this Entrypoint. Use of Observer pattern is important to
enable this, i.e. it is important that no component has any "upwards"
dependencies or this becomes more difficult, e.g. you start to need
"mock" versions of things.
On the listeners issue:
a) yes, this is why using a single listener as per I described above
is efficient.
b) There is definitely an overhead associated with listeners, so at a
certain level of application complexity you need to worry about it.
See Google's own doc:
http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5&s=google-web-toolkit-doc-1-5&t=FAQ_UIUseOneListener
c) In relation to another discussion about listeners I did a quick
test to see how GWT generates javascript for them. You may find it
interesting, it's towards the bottom of this thread:
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/1fa4af5d2728c5ab/d693b9ac6256fde1?lnk=gst&q=gregor+clicklistener#d693b9ac6256fde1
d) I think the issue is mainly the total number of listeners of a each
type (i.e. the compiled javascript has a list of ClickListeners,
another list of ChangeListeners etc which need to be checked in
response browser events). I think if you have, say, 10 or 20 click
listeners, that's no real problem, but if you have 100 then there may
be an issue with this and you may need to look at ways to get the
count down. Sharing a listener between multiple widgets within a
Composite is a simple way to do that which does not break
encapsulation.
On Feb 15, 4:55 pm, dodo wrote:
> Well the purpose of separating out the action related methods from the
> view is code reusability and testability without actually using the
> GWT container. Thus we thought that it would be a good idea if we
> follow supervising controller pattern. And we would also like to
> minimize the number of listeners in our app to enhance performance.
>
> On Feb 14, 5:15 pm, gregor wrote:
>
> > Hi dodo,
>
> > > Currently in my app all the services and action related methods are
> > > there inside the view class itself. How can Irefactormy code to
> > > decouple action related methods in a different controller/supervisor
> > > class?
>
> > Why would you want to do that? GWT follows (roughly) Swing/SWT
> > programing model which is sometimes known as Model Delegate, a
> > derivative of Model View Controller in which the Controllers and Views
> > are merged:
>
> >http://c2.com/cgi/wiki?ModelDelegate
>
> > Therefore the current situation as you describe is typical. There are
> > specific situations where it is a good idea to abstract action related
> > code to separate controllers, and various ways to do it, but It is use
> > case dependent.
>
> > > Another aspect of my problem is that, I have created composite
> > > widgets of my own, thus when a event is generated by an inner widget I
> > > should get the reference of sender and since I need to perform action
> > > on some other inner widget thus I need reference of that also. How can
> > > I achieve this without actually taking a direct reference of each
> > > inner widget of my composite?
>
> > Again, this is a standard pattern with a Composite and makes for
> > simpler more readable code. If (and only if) the widgets contained in
> > the composite are invisible to the outside world (private , no public
> > getters) then it is simplest and cleanest to have them call each other
> > directly as necessary. For example if you have a row of tool buttons
> > then a single ClickListener can handle their clicks and the main
> > Composite can control behaviour most simply e.g. :
>
> > public void onClick(Widget sender) {
> > if (sender==button1) {doX();}
> > if (sender==button2 {doY();}
> > // where doX() and doY() are private methods of the composite
>
> > }
>
> > Where an event fired from such private widgets does n
Where does word wrap occurs?
Hello, I have a text of unknown length and content and put this text in Label. Label has fixed width, thus word wrapping occurs (possibly several times). And questions is if it possible to find at what letters/words wrappings have happened. --~--~-~--~~~---~--~~ 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: ServiceImpl and existing java app
Thanks for the reply Shaffer. The problem is my app needs to run completely independently from the client. As is; the application will be launched once a web client makes an RPC request. Let me try to clarify as I may have been misunderstood. I am developing a GUI based java application which will have a web server embedded in it - Jetty in this case. Once I launch the application, it will act as a web server and therefore web browsers will be able to connect to it and get the GWT app and execute it. The GWT app needs to make RPC to the java app to retrieve information. Now, the ServiceImpl is instantiated once the first RPC call is made (is this wrong?) it needs to somehow refer to the already running app and call a method from it without re-instantiating a new version. Basically I'm trying to connect my webapp to an already executing java app. There has got to be a way to do this, right? Thanks. On Feb 14, 5:24 pm, "mikedshaf...@gmail.com" wrote: > If I'm understanding what you're attempting correctly, that's the > easiest way to do it. Your ServiceImpl is still running in pure Java, > and that's where an existing Java app can live. Your client will be > compiled out into Javascript, so if you wanted your existing Java > classes to be available on the client, the will be subject to the GWT > compilation process. An amazing and powerful process, but it might > yield references to Java libraries that are not compatible with the > GWT Java/Javascript library. > > Good luck! > > Later, > > Shaffer > > On Feb 14, 9:21 am, hermis wrote: > > > Hello all, > > > I am developing a Java application which will eventually embed a HTTP > > server and then act as the server for my GWT application. > > > I need help with getting the GWT app to access a method in the Java > > app :) > > > Until now, just for the sake of developing I have been instantiating > > my java app in the ServiceImpl and calling the required method from > > there. > > > What is the proper way of doing this? How do I connect the ServiceImpl > > to my app? > > > Thanks 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 and Tapestry 5 integration
Got it! Apparently under the lanucher classpath entries, pointing the src directory was not enough. I had to place an entry to src/main/ java. I am now able to edit tapestry pages and GWT components in the hosted mode browser without the need to refresh any directories. All changes are live! I could possibly be missing something but so far I've editied the GWT java files and the Tapestry Start.html, both are in the source directory, and both changes show up in the browser without the need for a restart. Here is what I did: Back End., I like to you the JettyLanucher Eclipse plugin so I created a new Jetty Launch dialog and pointed it to my jetty.xml file.My VM arguments are as follow -Djetty.home="/Users/casey/Projects/opt/jetty-5.1.11RC0" -Dorg.apache.tapestry.disable-caching=true -DignoreDuplicateModuleError=true -Xmx512m -Xms128m -XX:PermSize=256M Now that I have the back end up and running like a regular tapestry project, I want to run GWT in hosted mode so that I can make like changes to GWT components without having to run the maven GWT compile command and then refreshing the src/main/webapp directory in eclipse. 1. Go to the debug menu and create a new Java Application Launcher 2. On the main tab set the following: a. Project to myapp b. Set the main class to com.google.gwt.dev.GWTShell 3. On the arguments tab: a. Set the program arguments to: -noserver -out www -whitelist "localhost[:]8080" -port 8080 b. Set the VM arguments to: -XstartOnFirstThread -Xmx512M 4. On the Classpath tab, select the user entries click the Advanced button and choose add folder. Then select the src/main/java folder. This must be the java folder and not the src folder. I have the java folder ahead of the myapp entry but I'm not sure if it makes a difference. 5. Everything else stays the same so just click the Debug button. At this point you clicked the Debug button for both your Jetty entry and the Java application entry. Both need to be running at the same time. 6. When the GWT Hosted Browser pops up, click the Hosted Browser button. At that point, you should be able to make changes to tapestry and GWT. Let me know if you have any problems. On Feb 15, 1:31 pm, Casey wrote: > To me, GWT and Tapestry seem like the perfect mix so I was very > excited when I found your tutrial. I think it will be great to use > tapestry to do basic things like authentication and then use GWT to > enhance the UI. I have four years of experience with tapestry 3. 0 and > about a year with GWT 1.4. Unfortunately that has been followed by > about 9 months off but I'm trying to get back to it. > > Anyway, in my previous GWT 1.4 project, I developed in Eclipse and I > was able to have Jetty host the back end while using a Java > application launcher to run the GWT hosted browser in no server mode. > Unfortunately I haven't had any such luck trying to get the your GWT > components running either in full hosted mode or no server mode. I've > targeted the StockWatcher module since it's the only one with an html > file in the public directory but when it launches I get the following > error: > > [ERROR] Unable to find type > 'se.pmdit.tutorial.t5gwt.gwt.client.StockWatcher' > [ERROR] Hint: Check that the type name > 'se.pmdit.tutorial.t5gwt.gwt.client.StockWatcher' is really what you > meant > [ERROR] Hint: Check that your classpath includes all required source > roots > > I've specifically added the src directory to the Java app but still no > luck. With your sample project, are you able to launch hosted mode for > a single (or multiple) module? Like you said, I really want to shoot > for a rapid development environment where you could develop tapestry > and GWT and the same time. > > On Feb 15, 11:52 am, Daniel Jue wrote: > > > Hi, > > > Thanks for trying out the tutorial. I hope this list doesn't mind the > > cross traffic. Glad you were able to get it working with Jetty. My > > projects have so many Tomcat dependencies that I tend to develop with > > it exclusively, and haven't had much time to play with Jetty. > > > I didn't really try getting it to work in hosted mode. I don't think > > hosted mode would handle loading the Tapestry servlet filter, but I > > may be wrong. I'm still not very experienced in GWT project setups, > > beyond the standard archetype. > > > I feel that if your entrypoint is self-reliant, you can have an HTML > > file in your public directory, allowing you to do some rapid > > development on a single entrypoint at a time. The HTML file in the > > public directory is not being used by the application in the tutorial, > > but could be used in development with some tweaking. --That is, the > > public HTML files could be used as a development aids, but ultimately > > the Tapestry templates will be hosting the entrypoints. > > > Tapestry uses templates with it's own DTD, but the syntax is so close > > to HTML as to be editable by artsy web designers. It's not like a JSP > > that gets t
Re: Third party libraries for GWT
The two major UI libraries right now for GWT are Ext GWT and Smart GWT. There are some similarities and some differences. I've used both and they both allow for a look and feel on your GWT app that would take a lot of custom development to achieve. They both have some very nice widgets in both functionality and look. Ext GWT is a commercial, paid for library, Smart GWT is free and open source. I think that Ext GWT is a bit more stable, but neither is particularly unstable. The Smart GWT guys are also working on some interesting server side linkage to the UI components. Both have features that neither have. Being very attractive modern UI components, neither is "light weight" as they require a bunch of javascript and some nifty DOM manipulation (like all of the other Javascript UI libraries mind you!). So if your prospective client machines are a bunch of old Pentium III's running IE6 (my current burden!) then neither is particularily a good choice. In the end, I would score them as a tie. If your organization won't pay for their libraries, then Smart GWT is the only way to go. If your organization can't or won't use open source type of stuff, then Ext GWT is the way. Both require a lot of diligence and effort, as any good UI library does. But after a little learning curve, you'll be able to produce web UI's that are in a class equal to the richest heavy client. Good luck. Later, Shaffer On Feb 14, 10:53 pm, Shawn Brown wrote: > > I came across GWT EXT, EXT GWT, SmartGwt, > > and a ton of other third party libraries. > > 1. Which third-party libraries would you recommend in general and why. > > 2. Which third-party libraries would you want to stay away from and why. > > Well anyone can correct me if I am wrong but I think GWT EXT > development has stopped since it's basically a wrapper around ext JS > (same makers of EXT GWT) which switched it's license to gpl3. this > means GWT EXT only works with an older version of EXT JS that may not > have bug fixes or security fixes. GWT EXT recommends switching over > to SmartGwt ... seehttp://gwt-ext.com/forum/viewtopic.php?f=13&t=3465 > > Shawn --~--~-~--~~~---~--~~ 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 AJAX JSON on firefox "not well form" error.how to solve?
load a local json text file on firefox by ajax would get "not well
form" error msg.
to solve this problem on javascript is comment out this command:
xmlHttpObject.overrideMimeType('text/xml');
but GWT bundle all code in RequestBuilder, developers can't changed
js code directly if they don't like to recompile GWT.
is any other way to solve it?
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Re: GWT and Tapestry 5 integration
To me, GWT and Tapestry seem like the perfect mix so I was very excited when I found your tutrial. I think it will be great to use tapestry to do basic things like authentication and then use GWT to enhance the UI. I have four years of experience with tapestry 3. 0 and about a year with GWT 1.4. Unfortunately that has been followed by about 9 months off but I'm trying to get back to it. Anyway, in my previous GWT 1.4 project, I developed in Eclipse and I was able to have Jetty host the back end while using a Java application launcher to run the GWT hosted browser in no server mode. Unfortunately I haven't had any such luck trying to get the your GWT components running either in full hosted mode or no server mode. I've targeted the StockWatcher module since it's the only one with an html file in the public directory but when it launches I get the following error: [ERROR] Unable to find type 'se.pmdit.tutorial.t5gwt.gwt.client.StockWatcher' [ERROR] Hint: Check that the type name 'se.pmdit.tutorial.t5gwt.gwt.client.StockWatcher' is really what you meant [ERROR] Hint: Check that your classpath includes all required source roots I've specifically added the src directory to the Java app but still no luck. With your sample project, are you able to launch hosted mode for a single (or multiple) module? Like you said, I really want to shoot for a rapid development environment where you could develop tapestry and GWT and the same time. On Feb 15, 11:52 am, Daniel Jue wrote: > Hi, > > Thanks for trying out the tutorial. I hope this list doesn't mind the > cross traffic. Glad you were able to get it working with Jetty. My > projects have so many Tomcat dependencies that I tend to develop with > it exclusively, and haven't had much time to play with Jetty. > > I didn't really try getting it to work in hosted mode. I don't think > hosted mode would handle loading the Tapestry servlet filter, but I > may be wrong. I'm still not very experienced in GWT project setups, > beyond the standard archetype. > > I feel that if your entrypoint is self-reliant, you can have an HTML > file in your public directory, allowing you to do some rapid > development on a single entrypoint at a time. The HTML file in the > public directory is not being used by the application in the tutorial, > but could be used in development with some tweaking. --That is, the > public HTML files could be used as a development aids, but ultimately > the Tapestry templates will be hosting the entrypoints. > > Tapestry uses templates with it's own DTD, but the syntax is so close > to HTML as to be editable by artsy web designers. It's not like a JSP > that gets turned inside out. The goal was to keep artsy designers > from messing up code, and keep the coders from trying to be artsy. ;-) > > The person who wrote an older tutorial said he had his GWT entrypoints > as a separate project (with all the standard GWT project settings), > and then the source was combined into the main Tapestry application > later. > > On Sun, Feb 15, 2009 at 11:27 AM, Casey wrote: > > > Were you able to get this to work in GWT hosted mode? > > > On Feb 15, 11:10 am, Casey wrote: > >> Great sample project and instructions. I was able to get up and > >> running using Eclipse and Jetty. > > >> On Feb 13, 7:48 am, Casey wrote: > > >> > Thanks for putting this up. I'm going to take a look it at now. > > >> > On Jan 6, 1:51 pm, "Daniel Jue" wrote: > > >> > > Hi, > > >> > > I'm relatively new to GWT, but I've been working with Apache Tapestry > >> > > 5 for a while now. > >> > > I've written a tutorial (with source code as an Eclipse project) on > >> > > the Tapestry Wiki. It's based on some older tutorials that are out > >> > > there (thanks Pär Dahlberg). It includes cases for using multiple > >> > > instantiations of an entrypoint on one page, each acting > >> > > independently. The source includes a single Tapestry page that runs > >> > > two simple dialog boxes, and two independant stock watchers. ( In > >> > > other examples online, there was no example for mixing in an RPC > >> > > entrypoint.) > > >> > >http://wiki.apache.org/tapestry/Tapestry5GWTIntegration > > >> > > This setup has Tapestry as the "parent" web app framework, which > >> > > handles multiple pages and components (and nested components). The > >> > > tutorial outlines a way to embed your GWT application as a component > >> > > on a page. (either the component template or the page template > >> > > supplies the html you were using in your .html files with GWT > >> > > development) > > >> > > I am not using Hosted Mode in this tutorial. I got the Stock Watcher > >> > > app up and running in another project, and then copied the Java source > >> > > over. The tutorial uses Maven to build your entrypoints and feeds the > >> > > JS output back into the web app source. RPC Service class files end > >> > > up in the target dir with the Tapestry class files. > > >> > > If you are interested, ple
Problems adding listeners to a user-defined textarea
I want to add listeners to some user-supplied HTML that has been added to the DOM. If I create a new TextArea it works but none of the user's properties or attributes carry over. If I create a FocusWidget or TextAreaBase with the user's Element all works well only in IE7. (No indication that events are triggered in FF3, Safari, Opera, or Chrome). I can use getProperty and setProperty to transfer properties to the new TextArea but how do I iterate over the properties (and attributes) of an Element? Thanks in advance. -ken kahn --~--~-~--~~~---~--~~ 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: importing two type of window classes
Hi, I don't see any problem with them co-existing. I use them. just specify the fully qualified class names (at leat for one) com.gwtext.client.widgets.Window window = new com.gwtext.client.widgets.Window(); window.setSize(com.gwtext.client.widgets.Window.getClientWidth(), com.gwtext.client.widgets.Window.getClientHeight()); On Feb 14, 10:47 pm, ytbryan wrote: > can someone give me a clue on this matter? thank you! > > On Feb 13, 9:52 am, ytbryan wrote: > > > hi all, > > > if i want a feature from gwt Window that is not found in gwtext > > Window, what should i do? > > Since, com.google.gwt.user.client.Window and > > com.gwtext.client.widgets.Window cannot co-exist. --~--~-~--~~~---~--~~ 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: Code refactoring to minimize listeners & decoupling actions from view class
Well the purpose of separating out the action related methods from the
view is code reusability and testability without actually using the
GWT container. Thus we thought that it would be a good idea if we
follow supervising controller pattern. And we would also like to
minimize the number of listeners in our app to enhance performance.
On Feb 14, 5:15 pm, gregor wrote:
> Hi dodo,
>
> > Currently in my app all the services and action related methods are
> > there inside the view class itself. How can Irefactormy code to
> > decouple action related methods in a different controller/supervisor
> > class?
>
> Why would you want to do that? GWT follows (roughly) Swing/SWT
> programing model which is sometimes known as Model Delegate, a
> derivative of Model View Controller in which the Controllers and Views
> are merged:
>
> http://c2.com/cgi/wiki?ModelDelegate
>
> Therefore the current situation as you describe is typical. There are
> specific situations where it is a good idea to abstract action related
> code to separate controllers, and various ways to do it, but It is use
> case dependent.
>
> > Another aspect of my problem is that, I have created composite
> > widgets of my own, thus when a event is generated by an inner widget I
> > should get the reference of sender and since I need to perform action
> > on some other inner widget thus I need reference of that also. How can
> > I achieve this without actually taking a direct reference of each
> > inner widget of my composite?
>
> Again, this is a standard pattern with a Composite and makes for
> simpler more readable code. If (and only if) the widgets contained in
> the composite are invisible to the outside world (private , no public
> getters) then it is simplest and cleanest to have them call each other
> directly as necessary. For example if you have a row of tool buttons
> then a single ClickListener can handle their clicks and the main
> Composite can control behaviour most simply e.g. :
>
> public void onClick(Widget sender) {
> if (sender==button1) {doX();}
> if (sender==button2 {doY();}
> // where doX() and doY() are private methods of the composite
>
> }
>
> Where an event fired from such private widgets does need to be
> propagated to the outside world, it is common to to delegate the task
> to the Composite itself, for example:
>
> public void onClick(Widget sender) {
> if (sender==button1) {
> this.listeners.fireChange(this); // i.e. not the button
>
> }
>
> So the Composite provides a single view to the outside world, and the
> internals can talk to each other freely in the knowledge no outside
> class has any knowledge of them (i.e. they are fully encapsulated, and
> outside client classes register listeners with the Composite itself
> only.). There are specific classes in GWT to assist with this idea,
> for example DelegatingClickListenerCollection etc. I think this may be
> the origin of the Model Delegate pattern name. Basically it makes
> coding many common UI situations simpler and more readable than full
> MVC decomposition with no nasty side effects in most cases.
>
> Some situations benefit from full MVC decomposition. One example is a
> bulk data grid renderer, especially where the user can sort by column
> etc. Having a controller that manages and coordinates the paging/
> sorting with the server data source separately from the view is
> probably worth it. Another is where you have several views in the UI
> that show different aspects of the same data model. For example a work
> flow process might have several views, and a step might be ticked off
> in any of them, but that might require an update of all the other
> views as well. That implies a single shared model which in turn argues
> for a single controller with which the views interact and listen to.
>
> regards
> gregor
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Re: GWT and Tapestry 5 integration
Hi, Thanks for trying out the tutorial. I hope this list doesn't mind the cross traffic. Glad you were able to get it working with Jetty. My projects have so many Tomcat dependencies that I tend to develop with it exclusively, and haven't had much time to play with Jetty. I didn't really try getting it to work in hosted mode. I don't think hosted mode would handle loading the Tapestry servlet filter, but I may be wrong. I'm still not very experienced in GWT project setups, beyond the standard archetype. I feel that if your entrypoint is self-reliant, you can have an HTML file in your public directory, allowing you to do some rapid development on a single entrypoint at a time. The HTML file in the public directory is not being used by the application in the tutorial, but could be used in development with some tweaking. --That is, the public HTML files could be used as a development aids, but ultimately the Tapestry templates will be hosting the entrypoints. Tapestry uses templates with it's own DTD, but the syntax is so close to HTML as to be editable by artsy web designers. It's not like a JSP that gets turned inside out. The goal was to keep artsy designers from messing up code, and keep the coders from trying to be artsy. ;-) The person who wrote an older tutorial said he had his GWT entrypoints as a separate project (with all the standard GWT project settings), and then the source was combined into the main Tapestry application later. On Sun, Feb 15, 2009 at 11:27 AM, Casey wrote: > > Were you able to get this to work in GWT hosted mode? > > On Feb 15, 11:10 am, Casey wrote: >> Great sample project and instructions. I was able to get up and >> running using Eclipse and Jetty. >> >> On Feb 13, 7:48 am, Casey wrote: >> >> > Thanks for putting this up. I'm going to take a look it at now. >> >> > On Jan 6, 1:51 pm, "Daniel Jue" wrote: >> >> > > Hi, >> >> > > I'm relatively new to GWT, but I've been working with Apache Tapestry >> > > 5 for a while now. >> > > I've written a tutorial (with source code as an Eclipse project) on >> > > the Tapestry Wiki. It's based on some older tutorials that are out >> > > there (thanks Pär Dahlberg). It includes cases for using multiple >> > > instantiations of an entrypoint on one page, each acting >> > > independently. The source includes a single Tapestry page that runs >> > > two simple dialog boxes, and two independant stock watchers. ( In >> > > other examples online, there was no example for mixing in an RPC >> > > entrypoint.) >> >> > >http://wiki.apache.org/tapestry/Tapestry5GWTIntegration >> >> > > This setup has Tapestry as the "parent" web app framework, which >> > > handles multiple pages and components (and nested components). The >> > > tutorial outlines a way to embed your GWT application as a component >> > > on a page. (either the component template or the page template >> > > supplies the html you were using in your .html files with GWT >> > > development) >> >> > > I am not using Hosted Mode in this tutorial. I got the Stock Watcher >> > > app up and running in another project, and then copied the Java source >> > > over. The tutorial uses Maven to build your entrypoints and feeds the >> > > JS output back into the web app source. RPC Service class files end >> > > up in the target dir with the Tapestry class files. >> >> > > If you are interested, please let me know what improvements I can make. >> >> > > Regards, >> >> > > Daniel Jue > > > --~--~-~--~~~---~--~~ 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 1.6 works on 64 bits?
As far as i know gwt, and js is bit independent:) If you have a browser on a 64 bit machine that supports a js engine and gwt supports that:) it will work, so bravely i can say that the current gwt support it aswell. 2009/2/15 anderson...@gmail.com > > Hi. > > We all want to know, GWT 1.6 works on 64 bits? > > Thank you. > > Best Regards; > > > > -- Best Regards Tóth Imre --~--~-~--~~~---~--~~ 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 1.6 works on 64 bits?
Hi. We all want to know, GWT 1.6 works on 64 bits? Thank you. Best Regards; --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Tweaking HorizontalSplitPanel
Hi guys, For quite some time I have been hesitant to invest some time into GWT as a result of my aversion for the rigid nature of the Java language. Recently I could no longer resist since the toolkit simply looks too impressive. One very basic issue I ran into fairly quickly: I applied the HorizontalSplitPanel and I noticed that the left pane did not have a minimum width. I wanted it to have a minimum width in order to prevent users from accidentally making the pane disappear. So I thought the solution should be simple: extend the HorizontalSplitPanel and override one of its methods that deal with splitter movement. Turned out that HorizontalSplitPanel is a final class and cannot be extended. Grmbhh... I felt some old Java anger boiling up already, but I decided to suppress that emotion and ask for some advice here instead. How to deal with this problem (and UI detail issues in general)? Regards, Tim Molendijk --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
cannot run applicationCreator under MS Vista - IE
Hi, I downloaded GWT dev package and trying to run applicationCreater and sample scripts. It appears none of them work at all. Could this be blocked by the IE or anti-virus program? --~--~-~--~~~---~--~~ 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 and Tapestry 5 integration
Were you able to get this to work in GWT hosted mode? On Feb 15, 11:10 am, Casey wrote: > Great sample project and instructions. I was able to get up and > running using Eclipse and Jetty. > > On Feb 13, 7:48 am, Casey wrote: > > > Thanks for putting this up. I'm going to take a look it at now. > > > On Jan 6, 1:51 pm, "Daniel Jue" wrote: > > > > Hi, > > > > I'm relatively new to GWT, but I've been working with Apache Tapestry > > > 5 for a while now. > > > I've written a tutorial (with source code as an Eclipse project) on > > > the Tapestry Wiki. It's based on some older tutorials that are out > > > there (thanks Pär Dahlberg). It includes cases for using multiple > > > instantiations of an entrypoint on one page, each acting > > > independently. The source includes a single Tapestry page that runs > > > two simple dialog boxes, and two independant stock watchers. ( In > > > other examples online, there was no example for mixing in an RPC > > > entrypoint.) > > > >http://wiki.apache.org/tapestry/Tapestry5GWTIntegration > > > > This setup has Tapestry as the "parent" web app framework, which > > > handles multiple pages and components (and nested components). The > > > tutorial outlines a way to embed your GWT application as a component > > > on a page. (either the component template or the page template > > > supplies the html you were using in your .html files with GWT > > > development) > > > > I am not using Hosted Mode in this tutorial. I got the Stock Watcher > > > app up and running in another project, and then copied the Java source > > > over. The tutorial uses Maven to build your entrypoints and feeds the > > > JS output back into the web app source. RPC Service class files end > > > up in the target dir with the Tapestry class files. > > > > If you are interested, please let me know what improvements I can make. > > > > Regards, > > > > Daniel Jue --~--~-~--~~~---~--~~ 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 and Tapestry 5 integration
Great sample project and instructions. I was able to get up and running using Eclipse and Jetty. On Feb 13, 7:48 am, Casey wrote: > Thanks for putting this up. I'm going to take a look it at now. > > On Jan 6, 1:51 pm, "Daniel Jue" wrote: > > > Hi, > > > I'm relatively new to GWT, but I've been working with Apache Tapestry > > 5 for a while now. > > I've written a tutorial (with source code as an Eclipse project) on > > the Tapestry Wiki. It's based on some older tutorials that are out > > there (thanks Pär Dahlberg). It includes cases for using multiple > > instantiations of an entrypoint on one page, each acting > > independently. The source includes a single Tapestry page that runs > > two simple dialog boxes, and two independant stock watchers. ( In > > other examples online, there was no example for mixing in an RPC > > entrypoint.) > > >http://wiki.apache.org/tapestry/Tapestry5GWTIntegration > > > This setup has Tapestry as the "parent" web app framework, which > > handles multiple pages and components (and nested components). The > > tutorial outlines a way to embed your GWT application as a component > > on a page. (either the component template or the page template > > supplies the html you were using in your .html files with GWT > > development) > > > I am not using Hosted Mode in this tutorial. I got the Stock Watcher > > app up and running in another project, and then copied the Java source > > over. The tutorial uses Maven to build your entrypoints and feeds the > > JS output back into the web app source. RPC Service class files end > > up in the target dir with the Tapestry class files. > > > If you are interested, please let me know what improvements I can make. > > > Regards, > > > Daniel Jue --~--~-~--~~~---~--~~ 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: IE6.0 crashes with GWT 1.5.3
Thanks for your reply. The issue happens in IE 6.0 as well as hosted mode (my IE version is 6.0 and I guess the hosted mode uses that). I pasted the log of the crash from hosted mode. I don't have a crash log from IE. I thought the log from the hosted mode would give some pointers. Regards On Feb 15, 1:10 am, Adam T wrote: > Not sure why this would be a GWT issue since it is the Java hotspot > machine that is having the error and once you're in web mode you're > using JavaScript so, unless I'm mistaken, no HotSpot use - are yo > running some other Java (applet?) on your site? > > Still, if you try doing a web search you can dig up a few pointers on > the hotspot access violation, > i.e.http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6349849 > (which is running an applet on IE with Java 1.5) or look through the > GWT issue log (http://code.google.com/p/google-web-toolkit/issues/ > list), to see if you find similar, for > examplehttp://code.google.com/p/google-web-toolkit/issues/detail?id=1532&can..., > but again, that is hosted mode not web mode (and seems not > reproducable). > > //Adam > > On 15 Feb, 08:46, GWTFan wrote: > > > We have developed a fairly large scale application using GWT 1.5.3. > > While the application works reasonably well in IE7.0, Firefox, and > > chrome, it crashes during some operations in IE6.0. The crash log is > > below. > > > We are scheduled to go to production and most of our users use IE6.0. > > > Need help! > > > Regards, > > Mukund > > > # > > # An unexpected error has been detected by HotSpot Virtual Machine: > > # > > # EXCEPTION_ACCESS_VIOLATION (0xc005) at pc=0x7dcdc6f4, pid=5536, > > tid=2508 > > # > > # Java VM: Java HotSpot(TM) Client VM (1.5.0_06-b05 mixed mode) > > # Problematic frame: > > # C [mshtml.dll+0xac6f4] > > # > > > --- T H R E A D --- > > > Current thread (0x00824290): JavaThread "main" [_thread_in_native, > > id=2508] > > > siginfo: ExceptionCode=0xc005, reading address 0x > > > Registers: > > EAX=0x2d36039a, EBX=0x0006a084, ECX=0x, EDX=0x0072 > > ESP=0x00069e64, EBP=0x00069f94, ESI=0x01a9, EDI=0x > > EIP=0x7dcdc6f4, EFLAGS=0x00010206 > > > Top of Stack: (sp=0x00069e64) > > 0x00069e64: 0006f4d0 0006a084 00069e7c > > 0x00069e74: 7dcb53ba 0006a0fc 00069eb4 7dcab6b4 > > 0x00069e84: 2cfe6e80 00069ea4 7dcaf232 00069ec8 > > 0x00069e94: 7dcdf5ab 0006f458 2cfb2850 289a0778 > > 0x00069ea4: 3bc6 3bc6 289a0750 > > 0x00069eb4: 0006a148 00069ed4 7dcaf232 00069ef8 > > 0x00069ec4: 00069f70 > > 0x00069ed4: 00069ee8 7dcaed15 00069fa0 0006a148 > > > Instructions: (pc=0x7dcdc6f4) > > 0x7dcdc6e4: 75 f4 8d 8d 0c ff ff ff e8 40 ce fd ff 8b 4d f8 > > 0x7dcdc6f4: 8b 01 a8 08 0f 85 4c b0 07 00 a8 03 0f 85 43 fe > > > Stack: [0x0003,0x0007), sp=0x00069e64, free space=231k > > Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, > > C=native code) > > C [mshtml.dll+0xac6f4] > > C [mshtml.dll+0xafdbe] > > C [mshtml.dll+0x21847e] > > C [mshtml.dll+0xacb91] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xacffc] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xaeb7c] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xaeb7c] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xacffc] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xacffc] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xacffc] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xaeb7c] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xaeb7c] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xaeb7c] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xad7d8] > > C [mshtml.dll+0xacffc] > > C [mshtml.dll+0xad8a4] > > C [mshtml.dll+0xbcd44] > > C [mshtml.dll+0x124f03] > > C [mshtml.dll+0xaded7] > > C [mshtml.dll+0xadcc7] > > C [mshtml.dll+0x83080] > > C [mshtml.dll+0x83024] > > C [mshtml.dll+0x68a9a] > > C [USER32.dll+0x8724] > > C [USER32.dll+0x8806] > > C [USER32.dll+0xb4b0] > > C [USER32.dll+0xb4fc] > > C [ntdll.dll+0xeae3] > > C [USER32.dll+0x8a00] > > C [swt-win32-3235.dll+0x2273] > > j org.eclipse.swt.internal.win32.OS.DispatchMessageW(Lorg/eclipse/swt/ > > internal/win32/MSG;)I+0 > > j org.eclipse.swt.internal.win32.OS.DispatchMessage(Lorg/eclipse/swt/ > > internal/win32/MSG;)I+7 > > j org.eclipse.swt.widgets.Display.readAndDispatch()Z+50 > > j com.google.gwt.dev.GWTShell.pumpEventLoop()V+16 > > j com.google.gwt.dev.GWTShell.run()V+23 > > j com.google.gwt.dev.GWTShell.main([Ljava/lang/String;)V+20 > > v ~StubRoutines::call_stub > > V [jvm.dll+0x845a9] > > V [jvm.dll+0xd9317] > > V [jvm.dll+0x8447a] > > V [jvm.dll+0x8b44a] > > C [javaw.exe+0x14c5] > > C [javaw.exe+0x3151] > > C
Re: Need to enable parallel download .
I think 12 secs for 190 kb is too much even if you use a 512 kb/sec connection. Int that case it would cost 4 secs. Maybe the script running to much at startup, or you download too much images to the page...maybe.. byez 2009/2/14 Ghostcoder > > Thanks for the reply . > > I am compressing the html file(gzip) but my html file is 190 kb .It > takes 12 secs to download. > > Can I reduce the size by using multiple modules so that the initial > page load can be quick and the subsequent module html files can be > downloaded lazily. > > Will multiple modules help me reduce load time if so is there any > tutorial that explains how multiple modules can be used in one project > (one website). > > thanks > > On Feb 12, 5:04 pm, Eric Ayers wrote: > > On Wed, Feb 11, 2009 at 3:34 PM, Ghostcoder > wrote: > > > > > I have created my site using gwt1.5 and I have used gwt google map api > > > too.When i open my site in the browser I realize that a main.js file > > > is downloaded from maps.google.com. which is 68 kb(4 sec to download) > > > and my cache html is 200kb(9 sec to download) so the site takes a > > > while to load .These two files are not downloaded parallely even > > > though they are from two different domains ,how do i configure it so > > > that these two gets downloaded parallely. > > > > > note : I have configured the map script in module.gwt.xml > > > > One quick thing you could do is to move that script load out of the > > module.xml and move it into the section of your HTML host page. > > that will get the main.js file from maps up and running quickly. > > > > > How do i improve the startup time ,I verified with yslow ,it gives 80 > > > points for the site ,but still the start up time for the site when > > > cache is empty is close to 15 secs which includes the files mentioned > > > above ,my css and images. > > > > From a broadband connection (1.5Mbit), under Chrome & IE7, I measured > > the Google hosted HelloMaps sample > > (http://gwt.google.com/samples/HelloMaps-1.0.3/HelloMaps.html) loads > > in about 3 to 4 seconds after I empty the cache, and it uses a > >
Re: Inside RichTextArea
2009/2/14 A Friend Of Yours > > Got things working a little... could anyone tell me how to get the > cursor location in a RichTextArea? that is interest me as well. > > > On Feb 14, 1:34 am, A Friend Of Yours wrote: > > Hello > > > > I am working on a project where I need a (java) source code > > highlighting editor. I searched everywhere but could not find any > > solution that could work with GWT. There are solutions such as > > codepress but dont work with GWT. Neither in this forum could I find > > anything useful. > > > > I was hoping if somebody could tell me what actually GWT does inside > > RichTextArea to enable rich text editing so that I might be able to > > make my own widget for this purpose. > > > > I tried the RichTextArea, RichTextAreaImpl and all its child classes > > but could not really get what they are playing with except that they > > are using iframe somehow. (May be because I dont know javascript as > > much as used there) > > > > Thanks > > > > Omer > > > -- Best Regards Tóth Imre --~--~-~--~~~---~--~~ 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: Design Question Regarding GWT
2009/2/14 avivg > > Hello, > > I'm a GWT newbie. I've read the GWT docs and played with the samples, > but still i have some basic questions about how to design and use GWT > in a web app: > > 1) GWT communicates asynchronously with a server. When a GWT > application loads, i would like to be able to display some initial > data without going back to the server (after all, we've just been > there:). How/where can i pass some initial data and what method do i > use to feed it to GWT? (instead of making a (redundant) asynchronous > call for the data immediately when the app first loads) > You can pass data into your gwt app as js variables, form,maybe hidden variables, url parameters, and so on. > > 2) I would like to use GWT with a JSON capable server (php, django > etc). My question is, what is the best way to use GWT? Should i use > GWT to code the entire website? Should i use a single GWT app to deal > with the entire site or do i break small pieces of functionality to > small GWTapps? Or the other extreme: just use GWT to implement tiny JS > "widgets" combined with a traditional template rendering oriented > website (eg php). What is the common usage model? It as a matter of tasta, and advance in gwt, and the borders of your application:) At firs try to make same finctional widgets, and go on. > > > 3) WRT #2: How would you recommend implementing user login and > registration functionality using GWT+JSON? > a) Using GWT as an AJAX widget to spice up a php/django form > b) Implement a GWT app specific to registering / login users, > leaving other website functionality to other GWT apps > c) Implement user functionality using GWT into a single app > containing the entire website functionality. > I think (a.) will good for you, and will be fun. -- Best Regards Tóth Imre --~--~-~--~~~---~--~~ 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: Closable Tab- Changing Tab text
Then I suggest you just keep a Label for the text on the tab bar, keep it when done with adding it to the tab bar. So you can change the label's text on the user's actions. Hope it helps. On Sat, Feb 14, 2009 at 9:27 PM, GWTFan wrote: > > Yes that is what I do. I use TabPanel.add(widget, widget). My tab text > is a horizontal panel with text and an icon for close. > > But in our application after the tab is displayed, based on user > action the tab text should change. > > My tab text is a widget. How do I change the widget. I could not find > a method in the tabbar for it. > > Thanks, > Mukund > > On Feb 14, 5:32 am, Behrooz Nobakht wrote: >> I believe you should use the TabPanel.addWidget(panelWidget, tabWidget) >> method >> of TabPanel. >> >> On Sat, Feb 14, 2009 at 8:58 AM, GWTFan wrote: >> >> > We need closable tab panel. I'm using TabPanel's add(widget, widget) >> > method to add tabs. I'm using an horizontalpanel as tab heading, with >> > a text and an icon with clicklistener for closing. >> >> > This Works well. >> >> > However, based on user action on the widget within the tab, I need to >> > change the tab text. >> > While adding the tab, I could pass a widget for the tab text with >> > closable option. But TabBar.setTabText() does not allow widgets. How >> > do I get the widget in the tabheader and change the text? >> >> > Any suggestions. >> >> > 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 -~--~~~~--~~--~--~---
Re: IE6.0 crashes with GWT 1.5.3
Not sure why this would be a GWT issue since it is the Java hotspot machine that is having the error and once you're in web mode you're using JavaScript so, unless I'm mistaken, no HotSpot use - are yo running some other Java (applet?) on your site? Still, if you try doing a web search you can dig up a few pointers on the hotspot access violation, i.e. http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=6349849 (which is running an applet on IE with Java 1.5) or look through the GWT issue log (http://code.google.com/p/google-web-toolkit/issues/ list), to see if you find similar, for example http://code.google.com/p/google-web-toolkit/issues/detail?id=1532&can=1&q=access%20violation%20IE, but again, that is hosted mode not web mode (and seems not reproducable). //Adam On 15 Feb, 08:46, GWTFan wrote: > We have developed a fairly large scale application using GWT 1.5.3. > While the application works reasonably well in IE7.0, Firefox, and > chrome, it crashes during some operations in IE6.0. The crash log is > below. > > We are scheduled to go to production and most of our users use IE6.0. > > Need help! > > Regards, > Mukund > > # > # An unexpected error has been detected by HotSpot Virtual Machine: > # > # EXCEPTION_ACCESS_VIOLATION (0xc005) at pc=0x7dcdc6f4, pid=5536, > tid=2508 > # > # Java VM: Java HotSpot(TM) Client VM (1.5.0_06-b05 mixed mode) > # Problematic frame: > # C [mshtml.dll+0xac6f4] > # > > --- T H R E A D --- > > Current thread (0x00824290): JavaThread "main" [_thread_in_native, > id=2508] > > siginfo: ExceptionCode=0xc005, reading address 0x > > Registers: > EAX=0x2d36039a, EBX=0x0006a084, ECX=0x, EDX=0x0072 > ESP=0x00069e64, EBP=0x00069f94, ESI=0x01a9, EDI=0x > EIP=0x7dcdc6f4, EFLAGS=0x00010206 > > Top of Stack: (sp=0x00069e64) > 0x00069e64: 0006f4d0 0006a084 00069e7c > 0x00069e74: 7dcb53ba 0006a0fc 00069eb4 7dcab6b4 > 0x00069e84: 2cfe6e80 00069ea4 7dcaf232 00069ec8 > 0x00069e94: 7dcdf5ab 0006f458 2cfb2850 289a0778 > 0x00069ea4: 3bc6 3bc6 289a0750 > 0x00069eb4: 0006a148 00069ed4 7dcaf232 00069ef8 > 0x00069ec4: 00069f70 > 0x00069ed4: 00069ee8 7dcaed15 00069fa0 0006a148 > > Instructions: (pc=0x7dcdc6f4) > 0x7dcdc6e4: 75 f4 8d 8d 0c ff ff ff e8 40 ce fd ff 8b 4d f8 > 0x7dcdc6f4: 8b 01 a8 08 0f 85 4c b0 07 00 a8 03 0f 85 43 fe > > Stack: [0x0003,0x0007), sp=0x00069e64, free space=231k > Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, > C=native code) > C [mshtml.dll+0xac6f4] > C [mshtml.dll+0xafdbe] > C [mshtml.dll+0x21847e] > C [mshtml.dll+0xacb91] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xacffc] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xaeb7c] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xaeb7c] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xacffc] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xacffc] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xacffc] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xaeb7c] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xaeb7c] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xaeb7c] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xad7d8] > C [mshtml.dll+0xacffc] > C [mshtml.dll+0xad8a4] > C [mshtml.dll+0xbcd44] > C [mshtml.dll+0x124f03] > C [mshtml.dll+0xaded7] > C [mshtml.dll+0xadcc7] > C [mshtml.dll+0x83080] > C [mshtml.dll+0x83024] > C [mshtml.dll+0x68a9a] > C [USER32.dll+0x8724] > C [USER32.dll+0x8806] > C [USER32.dll+0xb4b0] > C [USER32.dll+0xb4fc] > C [ntdll.dll+0xeae3] > C [USER32.dll+0x8a00] > C [swt-win32-3235.dll+0x2273] > j org.eclipse.swt.internal.win32.OS.DispatchMessageW(Lorg/eclipse/swt/ > internal/win32/MSG;)I+0 > j org.eclipse.swt.internal.win32.OS.DispatchMessage(Lorg/eclipse/swt/ > internal/win32/MSG;)I+7 > j org.eclipse.swt.widgets.Display.readAndDispatch()Z+50 > j com.google.gwt.dev.GWTShell.pumpEventLoop()V+16 > j com.google.gwt.dev.GWTShell.run()V+23 > j com.google.gwt.dev.GWTShell.main([Ljava/lang/String;)V+20 > v ~StubRoutines::call_stub > V [jvm.dll+0x845a9] > V [jvm.dll+0xd9317] > V [jvm.dll+0x8447a] > V [jvm.dll+0x8b44a] > C [javaw.exe+0x14c5] > C [javaw.exe+0x3151] > C [kernel32.dll+0x16fd7] > > Java frames: (J=compiled Java code, j=interpreted, Vv=VM code) > j org.eclipse.swt.internal.win32.OS.DispatchMessageW(Lorg/eclipse/swt/ > internal/win32/MSG;)I+0 > j org.eclipse.swt.internal.win32.OS.DispatchMessage(Lorg/eclipse/swt/ > internal/win32/MSG;)I+7 > j org.eclipse.swt.widgets.Display.readAndDispatch()Z+50 > j com.google.gwt.dev.GWTShell.pumpEventLoop()V+16 > j com.google.gwt.dev.GWTShell.run()V+23 > j com.google.gwt.dev.GWTShell.main([Ljava/lang/String;)V+20 > v ~StubRoutines::call_stub > > -
