Re: [NEWBIE QUESTION] Multiple ways of styling GWT application. Which one to choose?
On Sunday, July 20, 2014 1:11:05 PM UTC+2, Adrian Leśniak wrote: Hi everyone, I have just started with GWT and came across this dilemma. Well, I am aware of a several ways to styling the app, however I find it hard to figure out which technique I should choose, which will conform to the current standards. I thought, since I have experience in CSS and HTML, I could do all the styling in *.css files, but is it how GWT wants me to do it? I am just looking to pros and cons of the methods of styling. https://plus.google.com/116255824545489210730/posts/a1yywEjAfVd contains bits of an answer. As for CssResource/GssResource vs. an external stylesheet, CssResource/GssResource brings minification and obfuscation (so you don't have to think about how to name things to make sure there won't be naming conflicts), and a bit of type safety (by matching class names to Java interface methods, so you'll never make a typo in a class name and later wonder why your style is not applied) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/d/optout.
Re: Newbie question: best practices for view update from Composite
Take a look to Activities and Places. 2014-02-05 DT79 davide.tabare...@gmail.com: Hi everyone, I apologize for the stupid question buy I'm new to GWT. I have a single page application composed with some nested custom widgets (composites). I need, from a Composite, to change the main view (i. e. updating the widgets in the entry point class). Which is the recommended way or the best practice to do that? Should I use event bus? Thanks in advance. D. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
Re: Newbie Question
Use https://github.com/tbroyer/gwt-maven-archetypes to start an empty project. 2013/11/19 Andrew Smith andyuser2...@gmail.com Hi I recently created a GWT starter application, which contains 3 modules, client, server and shared. It was a simple app with a greeting service, built using the gwt-maven-plugin. All went well, but then when I tried to incorporate mvp, using views and activities, it made me change the the shared module into a gwt module. At least that's the only way it would build. I also want to incorporate GIN, and providers in further modules. Does anyone know why I had to use a GWT module. And what's the best source of info for my learning curve please. Many Thanks Andy -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To unsubscribe from this group and stop receiving emails from it, send an email to google-web-toolkit+unsubscr...@googlegroups.com. To post to this group, send email to google-web-toolkit@googlegroups.com. Visit this group at http://groups.google.com/group/google-web-toolkit. For more options, visit https://groups.google.com/groups/opt_out.
Re: newbie question: what return type to use for TextBox?
I don't know mvp4g but what you describe is pretty normal. If you expose
your widget as feature interfaces you would need to add a method per
feature like:
Focusable getNameFocusable();
HasText getNameHasText();
Technically you can define more interfaces as return value by using
generics:
T extends Focusable HasText T getTextBox() {
return (T) textbox; *//unchecked cast!*
}
which will allow you to access methods from both interfaces when calling
view.getTextBox().someMethod() but I dont recommend it because the
downsides are:
- you don't get a compile time error if textbox does not implement the
interfaces T extends from because its an unchecked cast to T.
- you don't get a compile time error if you assign the return type to
something different like HasEnabled enabled = view.getTextBox(). You could
even write something like Person p = view.getTextBox() which is plain
wrong. Also because of the unchecked cast to T.
So I tend to not use feature interfaces in my views. Instead of
view.getNameTextBox().get/setText(String) I simply use
view.get/setName(String). Its shorter, more meaningful and you dont have to
struggle with a good name for a HasXYZ getter method (adding the widget
class name or the feature interface name to the getter method name seems
silly and something like view.getName().getText() also looks kind of silly
to me). If I need to make the name focusable I would add
view.setNameFocused(boolean). So yes, I would add a new method to the view,
like you would add a new getter now.
In some cases I push the model class to the view like view.display(person)
/ view.getPerson(). This allows you to implement some minor logic into the
view and can help to keep the presenter a bit more cleaner. Some people
dont like it because the view knows about the model but I am fine with it
as it can be more practical.
For events I also dont use feature interfaces (e.g. HasClickHandlers). I
define my own Delegate interface that contains event callback methods, like
onNameChanged, and then call view.setDelegate(delegate). This works
pretty well with UiBinder's @UiHandler and in general it saves you a lot of
anonymous classes in your presenter.
So short story: Add a new method to your interface as its the safest thing
to do. If you think your presenter looks a bit ugly because of lengthly
view.getX().get/setY() method calls, don't use the feature interfaces in
your view and instead define methods that work with the concrete values,
e.g. String getName, Date getBirthday(), setAddressFocused(boolean), ...
Hope that helps.
-- J.
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Re: newbie question about external classes
Hi, You have to have the source code of your classes and let GWT translate them from Java to Javacript so that they can run in the browser. Caution: the jre emulation in GWT is limited - see the list to check what your business classes can and cannot use. See http://code.google.com/webtoolkit/doc/latest/RefJreEmulation.html - you may have to modify your business classes to comply with the list of emulated classes. regards didier On Nov 25, 9:38 am, xalien xalie...@yahoo.it wrote: hi all, I'm new of GWT and I apologize for my newbie question but I never found a response... I built a simple GWT application that show some data, the data actually is hardcoded on my class. Is it possibile, from my gwt class(EntryPoint), to use external business classes(stored in jar) to extract and elaborate my data before show it on web page? Compiling I receive the error did you forget to inherit a required module? but I can't inerit my classes because they are not gwt classes... Summarizing: is it possible in a GWT project using non GWT classes? how? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: newbie question: deploying the starter web project
I have the same problem with deploying on a tomcat. Everything works fine in debug mode, but on tomcat, i can't get my RPC working. My web.xml seems fine (the same as Oby) and @RemoteServiceRelativePath matches that. Is it wrong to create war files for tomcat just by zipping the whole war folder and naming it Projectname.war? Tomcat doesn't report anything wrong when deploying this war file. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: newbie question: deploying the starter web project
Hi Katharina, Thanks for your help so far. No I didn't have AppEngine enabled, I only have the GWT SDK clicked. I also didn't change anything from the starter project. I still have this line... @RemoteServiceRelativePath(greet) public interface GreetingService extends RemoteService this is weird, the javascript RPC is pointing to the right servlet but it says it cannot find the server... What can possibly go wrong. I restarted the tomcat too. In my CPanel error log I found this error [Thu Jul 15 01:02:05 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/404.shtml, referer: http://www.tuwuk.com/mainarea/F4DE64580EEC20A0487A6B1C498FA109.cache.html [Thu Jul 15 01:02:05 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/mainarea/greet, referer: http://www.tuwuk.com/mainarea/F4DE64580EEC20A0487A6B1C498FA109.cache.html [Thu Jul 15 01:01:35 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/404.shtml [Thu Jul 15 01:01:35 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/favicon.ico So apparently the javascript is really pointing to the right URL mainarea/greet but it seems the tomcat server does not translate 'mainarea/greet' to the servlet but directly translate it to real path. I checked my web.xml in WEB_INF ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app !-- Servlets -- servlet servlet-namegreetServlet/servlet-name servlet-classpath.to.server.GreetingServiceImpl/servlet-class /servlet servlet-mapping servlet-namegreetServlet/servlet-name url-pattern/mainarea/greet/url-pattern /servlet-mapping !-- Default page to serve -- welcome-file-list welcome-fileMainArea.html/welcome-file /welcome-file-list /web-app the url-pattern seems correct. Do you have any guess on why this happen? Thanks, Oby On Jul 14, 5:53 pm, Katharina Probst kpro...@google.com wrote: When you created your project, did you have AppEngine enabled? If you're trying to deploy with tomcat, you shouldn't have that option enabled. does the javascript file generated by the GWT sends request to the wrong servlet? does it point to /mainarea/greet all the time? Your client-side implementation of the RPC (what allows you to talk between the client and the server) has an annotation that should look like this: @RemoteServiceRelativePath(greet) That's how it hooks up to the server side servlet (whose URL pattern is specified in the web.xml file). So, no, it doesn't have to point to /mainarea/greet. Did you modify anything from the starter project? kathrin Thanks, Oby On Jul 14, 6:01 am, Katharina Probst kpro...@google.com wrote: Try just taking the whole war directory that the compiler produces (as is) and copying it to your tomcat/webapps/ directory. Rename the war directory to the name of your webapp (say, public_html). Then do tomcat/bin/startup.sh and go to localhost:8080/public_html/MainArea.html That should do the trick... kathrinOn Wed, Jul 14, 2010 at 2:51 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi, I am trying to see if I can deploy the web starter project to a web server (which runs using tomcat) The steps that I have done so far: 0.) create new GWT application, so it's the default template for a web app 1.) I compiled the starter project 2.) Copy the class, lib directory to the ~/public_html/WEB-INF 3.) Copy the web.xml to the ~/public_html/WEB-INF this is the web.xml ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app !-- Servlets -- servlet servlet-namegreetServlet/servlet-name servlet-classbla.bla.bla.server.GreetingServiceImpl/servlet- class /servlet servlet-mapping servlet-namegreetServlet/servlet-name url-pattern/mainarea/greet/url-pattern /servlet-mapping !-- Default page to serve -- welcome-file-list welcome-fileMainArea.html/welcome-file /welcome-file-list /web-app 4.) I put the MainArea.html and MainArea.css to the ~/public_html because they are the welcome-file 5.) I copied the compiled javascript and resources (in the folder called 'mainarea') to ~/public_html 6.) So the structure is like this: -- public_html |- MainArea.html |- MainArea.css |- WEB-INF |- web.xml |- lib |- class |- mainarea |- gwt |- hosted.html |- mainarea.nocache.js |- other resources When I go to the website, the page loads fine. But when I click send (to send
Re: newbie question: deploying the starter web project
I think I know what the problem may be related to. When I navigate to: http://www.tuwuk.com/mainarea/ http://www.tuwuk.com/mainarea/I get nothing, but when I go to http://www.tuwuk.com Given what I've told you to do, I would expect the first one to work, not the second one. I get your starter project (with the error). Because of the way you deployed it, it looks like the servlet will look for mainarea/greet, but it's not finding anything there (just like I didn't). I think you have a problem with your tomcat setup - you say that public_html is your webapps folder. Now I don't know enough tomcat hackery to know how to rename the webapps folder successfully (although I know you can make one project your default project, but the way I did it it still sat in the webapps folder), but it doesn't look like maybe you did it quite right. If you just have stock (i.e., unmodified) tomcat, you'll get a webapps directory, and you can dump your application (everything under war, like we'd discussed and you've done) there. Can you give that a try and see if it works? kathrin On Thu, Jul 15, 2010 at 2:14 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi Katharina, Thanks for your help so far. No I didn't have AppEngine enabled, I only have the GWT SDK clicked. I also didn't change anything from the starter project. I still have this line... @RemoteServiceRelativePath(greet) public interface GreetingService extends RemoteService this is weird, the javascript RPC is pointing to the right servlet but it says it cannot find the server... What can possibly go wrong. I restarted the tomcat too. In my CPanel error log I found this error [Thu Jul 15 01:02:05 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/404.shtml, referer: http://www.tuwuk.com/mainarea/F4DE64580EEC20A0487A6B1C498FA109.cache.html [Thu Jul 15 01:02:05 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/mainarea/greet, referer: http://www.tuwuk.com/mainarea/F4DE64580EEC20A0487A6B1C498FA109.cache.html [Thu Jul 15 01:01:35 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/404.shtml [Thu Jul 15 01:01:35 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/favicon.ico So apparently the javascript is really pointing to the right URL mainarea/greet but it seems the tomcat server does not translate 'mainarea/greet' to the servlet but directly translate it to real path. I checked my web.xml in WEB_INF ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app !-- Servlets -- servlet servlet-namegreetServlet/servlet-name servlet-classpath.to.server.GreetingServiceImpl/servlet-class /servlet servlet-mapping servlet-namegreetServlet/servlet-name url-pattern/mainarea/greet/url-pattern /servlet-mapping !-- Default page to serve -- welcome-file-list welcome-fileMainArea.html/welcome-file /welcome-file-list /web-app the url-pattern seems correct. Do you have any guess on why this happen? Thanks, Oby On Jul 14, 5:53 pm, Katharina Probst kpro...@google.com wrote: When you created your project, did you have AppEngine enabled? If you're trying to deploy with tomcat, you shouldn't have that option enabled. does the javascript file generated by the GWT sends request to the wrong servlet? does it point to /mainarea/greet all the time? Your client-side implementation of the RPC (what allows you to talk between the client and the server) has an annotation that should look like this: @RemoteServiceRelativePath(greet) That's how it hooks up to the server side servlet (whose URL pattern is specified in the web.xml file). So, no, it doesn't have to point to /mainarea/greet. Did you modify anything from the starter project? kathrin Thanks, Oby On Jul 14, 6:01 am, Katharina Probst kpro...@google.com wrote: Try just taking the whole war directory that the compiler produces (as is) and copying it to your tomcat/webapps/ directory. Rename the war directory to the name of your webapp (say, public_html). Then do tomcat/bin/startup.sh and go to localhost:8080/public_html/MainArea.html That should do the trick... kathrinOn Wed, Jul 14, 2010 at 2:51 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi, I am trying to see if I can deploy the web starter project to a web server (which runs using tomcat) The steps that I have done so far: 0.) create new GWT application, so it's the default template for a web app 1.) I compiled the starter project 2.) Copy the class, lib directory to the ~/public_html/WEB-INF 3.) Copy the web.xml to the ~/public_html/WEB-INF this is the web.xml ?xml version=1.0
Re: newbie question: deploying the starter web project
I agree this seems to be some tomcat issue not GWT issue. Ok I'll try and reply back. Thanks Oby On Jul 15, 6:30 am, Katharina Probst kpro...@google.com wrote: I think I know what the problem may be related to. When I navigate to:http://www.tuwuk.com/mainarea/ http://www.tuwuk.com/mainarea/I get nothing, but when I go to http://www.tuwuk.com Given what I've told you to do, I would expect the first one to work, not the second one. I get your starter project (with the error). Because of the way you deployed it, it looks like the servlet will look for mainarea/greet, but it's not finding anything there (just like I didn't). I think you have a problem with your tomcat setup - you say that public_html is your webapps folder. Now I don't know enough tomcat hackery to know how to rename the webapps folder successfully (although I know you can make one project your default project, but the way I did it it still sat in the webapps folder), but it doesn't look like maybe you did it quite right. If you just have stock (i.e., unmodified) tomcat, you'll get a webapps directory, and you can dump your application (everything under war, like we'd discussed and you've done) there. Can you give that a try and see if it works? kathrin On Thu, Jul 15, 2010 at 2:14 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi Katharina, Thanks for your help so far. No I didn't have AppEngine enabled, I only have the GWT SDK clicked. I also didn't change anything from the starter project. I still have this line... @RemoteServiceRelativePath(greet) public interface GreetingService extends RemoteService this is weird, the javascript RPC is pointing to the right servlet but it says it cannot find the server... What can possibly go wrong. I restarted the tomcat too. In my CPanel error log I found this error [Thu Jul 15 01:02:05 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/404.shtml, referer: http://www.tuwuk.com/mainarea/F4DE64580EEC20A0487A6B1C498FA109.cache [Thu Jul 15 01:02:05 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/mainarea/greet, referer: http://www.tuwuk.com/mainarea/F4DE64580EEC20A0487A6B1C498FA109.cache [Thu Jul 15 01:01:35 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/404.shtml [Thu Jul 15 01:01:35 2010] [error] [client 99.185.43.174] File does not exist: /home/osumampo/public_html/favicon.ico So apparently the javascript is really pointing to the right URL mainarea/greet but it seems the tomcat server does not translate 'mainarea/greet' to the servlet but directly translate it to real path. I checked my web.xml in WEB_INF ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app !-- Servlets -- servlet servlet-namegreetServlet/servlet-name servlet-classpath.to.server.GreetingServiceImpl/servlet-class /servlet servlet-mapping servlet-namegreetServlet/servlet-name url-pattern/mainarea/greet/url-pattern /servlet-mapping !-- Default page to serve -- welcome-file-list welcome-fileMainArea.html/welcome-file /welcome-file-list /web-app the url-pattern seems correct. Do you have any guess on why this happen? Thanks, Oby On Jul 14, 5:53 pm, Katharina Probst kpro...@google.com wrote: When you created your project, did you have AppEngine enabled? If you're trying to deploy with tomcat, you shouldn't have that option enabled. does the javascript file generated by the GWT sends request to the wrong servlet? does it point to /mainarea/greet all the time? Your client-side implementation of the RPC (what allows you to talk between the client and the server) has an annotation that should look like this: @RemoteServiceRelativePath(greet) That's how it hooks up to the server side servlet (whose URL pattern is specified in the web.xml file). So, no, it doesn't have to point to /mainarea/greet. Did you modify anything from the starter project? kathrin Thanks, Oby On Jul 14, 6:01 am, Katharina Probst kpro...@google.com wrote: Try just taking the whole war directory that the compiler produces (as is) and copying it to your tomcat/webapps/ directory. Rename the war directory to the name of your webapp (say, public_html). Then do tomcat/bin/startup.sh and go to localhost:8080/public_html/MainArea.html That should do the trick... kathrinOn Wed, Jul 14, 2010 at 2:51 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi, I am trying to see if I can deploy the web starter project to a web server (which runs using tomcat) The steps that I have done so far: 0.) create new GWT application, so it's the default template
Re: newbie question: deploying the starter web project
Try just taking the whole war directory that the compiler produces (as is) and copying it to your tomcat/webapps/ directory. Rename the war directory to the name of your webapp (say, public_html). Then do tomcat/bin/startup.sh and go to localhost:8080/public_html/MainArea.html That should do the trick... kathrin On Wed, Jul 14, 2010 at 2:51 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi, I am trying to see if I can deploy the web starter project to a web server (which runs using tomcat) The steps that I have done so far: 0.) create new GWT application, so it's the default template for a web app 1.) I compiled the starter project 2.) Copy the class, lib directory to the ~/public_html/WEB-INF 3.) Copy the web.xml to the ~/public_html/WEB-INF this is the web.xml ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app !-- Servlets -- servlet servlet-namegreetServlet/servlet-name servlet-classbla.bla.bla.server.GreetingServiceImpl/servlet- class /servlet servlet-mapping servlet-namegreetServlet/servlet-name url-pattern/mainarea/greet/url-pattern /servlet-mapping !-- Default page to serve -- welcome-file-list welcome-fileMainArea.html/welcome-file /welcome-file-list /web-app 4.) I put the MainArea.html and MainArea.css to the ~/public_html because they are the welcome-file 5.) I copied the compiled javascript and resources (in the folder called 'mainarea') to ~/public_html 6.) So the structure is like this: -- public_html |- MainArea.html |- MainArea.css |- WEB-INF |- web.xml |- lib |- class |- mainarea |- gwt |- hosted.html |- mainarea.nocache.js |- other resources When I go to the website, the page loads fine. But when I click send (to send the input to the server) it seems the path is wrong. I got this error: Sending name to the server: GWT User Server replies: An error occurred while attempting to contact the server. Please check your network connection and try again. I was wondering if this servlet location is correct? Another noob question about JSP, can I put the generated javascript code to ~/public_html/WEB_INF/mainarea instead of ~/public_html/ mainarea. Initially I thought WEB_INF becomes the root directory if web app tries to refer to some file? But apparently in the MainArea.html the script src='mainarea/mainare.nocache.js' doesn't work if I put mainarea inside WEB_INF. I wish there's a way to make the html file able to access the mainarea directory from WEB_INF. Is it possible? Thanks! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: newbie question: deploying the starter web project
I copied the content of war directory to the web_app (which is my public_html directory). Then I restarted tomcat, still I got the same error --- ERROR-- Sending name to the server: test abcdef Server replies: An error occurred while attempting to contact the server. Please check your network connection and try again -- ERROR-- does the javascript file generated by the GWT sends request to the wrong servlet? does it point to /mainarea/greet all the time? Thanks, Oby On Jul 14, 6:01 am, Katharina Probst kpro...@google.com wrote: Try just taking the whole war directory that the compiler produces (as is) and copying it to your tomcat/webapps/ directory. Rename the war directory to the name of your webapp (say, public_html). Then do tomcat/bin/startup.sh and go to localhost:8080/public_html/MainArea.html That should do the trick... kathrinOn Wed, Jul 14, 2010 at 2:51 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi, I am trying to see if I can deploy the web starter project to a web server (which runs using tomcat) The steps that I have done so far: 0.) create new GWT application, so it's the default template for a web app 1.) I compiled the starter project 2.) Copy the class, lib directory to the ~/public_html/WEB-INF 3.) Copy the web.xml to the ~/public_html/WEB-INF this is the web.xml ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app !-- Servlets -- servlet servlet-namegreetServlet/servlet-name servlet-classbla.bla.bla.server.GreetingServiceImpl/servlet- class /servlet servlet-mapping servlet-namegreetServlet/servlet-name url-pattern/mainarea/greet/url-pattern /servlet-mapping !-- Default page to serve -- welcome-file-list welcome-fileMainArea.html/welcome-file /welcome-file-list /web-app 4.) I put the MainArea.html and MainArea.css to the ~/public_html because they are the welcome-file 5.) I copied the compiled javascript and resources (in the folder called 'mainarea') to ~/public_html 6.) So the structure is like this: -- public_html |- MainArea.html |- MainArea.css |- WEB-INF |- web.xml |- lib |- class |- mainarea |- gwt |- hosted.html |- mainarea.nocache.js |- other resources When I go to the website, the page loads fine. But when I click send (to send the input to the server) it seems the path is wrong. I got this error: Sending name to the server: GWT User Server replies: An error occurred while attempting to contact the server. Please check your network connection and try again. I was wondering if this servlet location is correct? Another noob question about JSP, can I put the generated javascript code to ~/public_html/WEB_INF/mainarea instead of ~/public_html/ mainarea. Initially I thought WEB_INF becomes the root directory if web app tries to refer to some file? But apparently in the MainArea.html the script src='mainarea/mainare.nocache.js' doesn't work if I put mainarea inside WEB_INF. I wish there's a way to make the html file able to access the mainarea directory from WEB_INF. Is it possible? Thanks! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2Bunsubs cr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: newbie question: deploying the starter web project
When you created your project, did you have AppEngine enabled? If you're trying to deploy with tomcat, you shouldn't have that option enabled. does the javascript file generated by the GWT sends request to the wrong servlet? does it point to /mainarea/greet all the time? Your client-side implementation of the RPC (what allows you to talk between the client and the server) has an annotation that should look like this: @RemoteServiceRelativePath(greet) That's how it hooks up to the server side servlet (whose URL pattern is specified in the web.xml file). So, no, it doesn't have to point to /mainarea/greet. Did you modify anything from the starter project? kathrin Thanks, Oby On Jul 14, 6:01 am, Katharina Probst kpro...@google.com wrote: Try just taking the whole war directory that the compiler produces (as is) and copying it to your tomcat/webapps/ directory. Rename the war directory to the name of your webapp (say, public_html). Then do tomcat/bin/startup.sh and go to localhost:8080/public_html/MainArea.html That should do the trick... kathrinOn Wed, Jul 14, 2010 at 2:51 AM, Oby Sumampouw osumamp...@gmail.com wrote: Hi, I am trying to see if I can deploy the web starter project to a web server (which runs using tomcat) The steps that I have done so far: 0.) create new GWT application, so it's the default template for a web app 1.) I compiled the starter project 2.) Copy the class, lib directory to the ~/public_html/WEB-INF 3.) Copy the web.xml to the ~/public_html/WEB-INF this is the web.xml ?xml version=1.0 encoding=UTF-8? !DOCTYPE web-app PUBLIC -//Sun Microsystems, Inc.//DTD Web Application 2.3//EN http://java.sun.com/dtd/web-app_2_3.dtd; web-app !-- Servlets -- servlet servlet-namegreetServlet/servlet-name servlet-classbla.bla.bla.server.GreetingServiceImpl/servlet- class /servlet servlet-mapping servlet-namegreetServlet/servlet-name url-pattern/mainarea/greet/url-pattern /servlet-mapping !-- Default page to serve -- welcome-file-list welcome-fileMainArea.html/welcome-file /welcome-file-list /web-app 4.) I put the MainArea.html and MainArea.css to the ~/public_html because they are the welcome-file 5.) I copied the compiled javascript and resources (in the folder called 'mainarea') to ~/public_html 6.) So the structure is like this: -- public_html |- MainArea.html |- MainArea.css |- WEB-INF |- web.xml |- lib |- class |- mainarea |- gwt |- hosted.html |- mainarea.nocache.js |- other resources When I go to the website, the page loads fine. But when I click send (to send the input to the server) it seems the path is wrong. I got this error: Sending name to the server: GWT User Server replies: An error occurred while attempting to contact the server. Please check your network connection and try again. I was wondering if this servlet location is correct? Another noob question about JSP, can I put the generated javascript code to ~/public_html/WEB_INF/mainarea instead of ~/public_html/ mainarea. Initially I thought WEB_INF becomes the root directory if web app tries to refer to some file? But apparently in the MainArea.html the script src='mainarea/mainare.nocache.js' doesn't work if I put mainarea inside WEB_INF. I wish there's a way to make the html file able to access the mainarea directory from WEB_INF. Is it possible? Thanks! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.comgoogle-web-toolkit%2Bunsubs cr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Newbie question: How does one write a Unit test for MyClass extends RemoteServiceServlet ???
You can use SyncProxy to test the GWT RPC services See http://www.gdevelop.com/w/blog/2010/01/10/testing-gwt-rpc-services/ for details On May 5, 9:28 pm, Eric erjab...@gmail.com wrote: On May 5, 12:33 am, Mike m...@sheridan-net.us wrote: Hello Am trying to write tests for my code, and want to ensure that any class I write which extends RemoteServiceServlet; however, I'm not quite catching on to what I need to do in order to get a test to be runnable in that context... Have the servlet do all its work in another class, and test that class, I guess. One project I was later assigned to had made a suboptimal decision to do all the serious work of the application in Struts Action classes directly. Then, they tried to add web services, and now the services had to create Struts beans and actions. Don't go that way. If you use a library like gwt-dispatcher, this is done for you naturally. Respectfully, Eric Jablow -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group athttp://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Newbie question: How does one write a Unit test for MyClass extends RemoteServiceServlet ???
On May 5, 12:33 am, Mike m...@sheridan-net.us wrote: Hello Am trying to write tests for my code, and want to ensure that any class I write which extends RemoteServiceServlet; however, I'm not quite catching on to what I need to do in order to get a test to be runnable in that context... Have the servlet do all its work in another class, and test that class, I guess. One project I was later assigned to had made a suboptimal decision to do all the serious work of the application in Struts Action classes directly. Then, they tried to add web services, and now the services had to create Struts beans and actions. Don't go that way. If you use a library like gwt-dispatcher, this is done for you naturally. Respectfully, Eric Jablow -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Newbie question: How does one write a Unit test for MyClass extends RemoteServiceServlet ???
i guess that you need to mock it using jMock or easyMock, but i dont have a running example although i saw some unit tests for drools/jBPM where they use those mocking jars in order to simulate some context/DAO services. On Wed, May 5, 2010 at 7:33 AM, Mike m...@sheridan-net.us wrote: Hello Am trying to write tests for my code, and want to ensure that any class I write which extends RemoteServiceServlet; however, I'm not quite catching on to what I need to do in order to get a test to be runnable in that context... Any help is greatly appreciated (links, samples, explanation, etc). Cheers Mike -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Newbie question : Problem with GWT RPC when running running through GWT + AppEngine tutorial
Thanks Abdullah, I got that working. The tutorialhttp://code.google.com/webtoolkit/doc/latest/tutorial/appengine.html tells to download stockwacher projechttp://code.google.com/webtoolkit/doc/latest/tutorial/projects/GettingStartedAppEngine.zipt and import it in eclipse. The package contains old gwt-rpc.jar which is not compatible with new gwt sdk and hence fails with exception I pasted in my earlier mail. A easy fix is to build new project and copy jar from new project to stockwatcher one. On Wed, Mar 31, 2010 at 8:15 PM, Abdullah Shaikh abdullah.shaik...@gmail.com wrote: I think you are sending an object of type not defined in you rpc file, delete you rpc file so that a new one is created. - Abdullah On Wed, Mar 31, 2010 at 1:58 AM, vijay mymail.vi...@gmail.com wrote: hi, I am using GWT 2.0.3 version, I am going through the steps mentioned in GWT tutorial http://code.google.com/webtoolkit/doc/latest/tutorial/appengine.html When trying to integrate login service I get following exception. I tried using a normal GWT RPC and it also gave me similar exception. Mar 30, 2010 6:44:49 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1269974689208000] javax.servlet.ServletContext log: loginService: ERROR: Failed to parse the policy file '/stockwatcher/748E07BA5F0BCE26285053278C0378CB.gwt.rpc' java.text.ParseException: Expected: className, [true | false] at com.google.gwt.user.server.rpc.SerializationPolicyLoader.loadFromStream(SerializationPolicyLoader.java:116) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doGetSerializationPolicy(RemoteServiceServlet.java:234) at com.google.gwt.user.server.rpc.RemoteServiceServlet.getSerializationPolicy(RemoteServiceServlet.java:117) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.prepareToRead(ServerSerializationStreamReader.java:429) at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:234) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:51) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:121) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:352) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:844) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Mar 30, 2010 6:44:49 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1269974689224000] javax.servlet.ServletContext log: loginService: An IncompatibleRemoteServiceException was thrown while processing this call. com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: Parameter 0 of is of an unknown type 'java.lang.String/2004016611' at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:277) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164) at
Re: Newbie question : Problem with GWT RPC when running running through GWT + AppEngine tutorial
I think you are sending an object of type not defined in you rpc file, delete you rpc file so that a new one is created. - Abdullah On Wed, Mar 31, 2010 at 1:58 AM, vijay mymail.vi...@gmail.com wrote: hi, I am using GWT 2.0.3 version, I am going through the steps mentioned in GWT tutorial http://code.google.com/webtoolkit/doc/latest/tutorial/appengine.html When trying to integrate login service I get following exception. I tried using a normal GWT RPC and it also gave me similar exception. Mar 30, 2010 6:44:49 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1269974689208000] javax.servlet.ServletContext log: loginService: ERROR: Failed to parse the policy file '/stockwatcher/748E07BA5F0BCE26285053278C0378CB.gwt.rpc' java.text.ParseException: Expected: className, [true | false] at com.google.gwt.user.server.rpc.SerializationPolicyLoader.loadFromStream(SerializationPolicyLoader.java:116) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doGetSerializationPolicy(RemoteServiceServlet.java:234) at com.google.gwt.user.server.rpc.RemoteServiceServlet.getSerializationPolicy(RemoteServiceServlet.java:117) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.prepareToRead(ServerSerializationStreamReader.java:429) at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:234) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:51) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:121) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:352) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:844) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Mar 30, 2010 6:44:49 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1269974689224000] javax.servlet.ServletContext log: loginService: An IncompatibleRemoteServiceException was thrown while processing this call. com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: Parameter 0 of is of an unknown type 'java.lang.String/2004016611' at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:277) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:51) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at
Re: Newbie question : Problem with GWT RPC when running running through GWT + AppEngine tutorial
Ping! On Wed, Mar 31, 2010 at 1:58 AM, vijay mymail.vi...@gmail.com wrote: hi, I am using GWT 2.0.3 version, I am going through the steps mentioned in GWT tutorial http://code.google.com/webtoolkit/doc/latest/tutorial/appengine.html When trying to integrate login service I get following exception. I tried using a normal GWT RPC and it also gave me similar exception. Mar 30, 2010 6:44:49 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1269974689208000] javax.servlet.ServletContext log: loginService: ERROR: Failed to parse the policy file '/stockwatcher/748E07BA5F0BCE26285053278C0378CB.gwt.rpc' java.text.ParseException: Expected: className, [true | false] at com.google.gwt.user.server.rpc.SerializationPolicyLoader.loadFromStream(SerializationPolicyLoader.java:116) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doGetSerializationPolicy(RemoteServiceServlet.java:234) at com.google.gwt.user.server.rpc.RemoteServiceServlet.getSerializationPolicy(RemoteServiceServlet.java:117) at com.google.gwt.user.server.rpc.impl.ServerSerializationStreamReader.prepareToRead(ServerSerializationStreamReader.java:429) at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:234) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:51) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:121) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360) at org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216) at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181) at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:712) at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405) at com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:70) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at com.google.appengine.tools.development.JettyContainerService$ApiProxyHandler.handle(JettyContainerService.java:352) at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:139) at org.mortbay.jetty.Server.handle(Server.java:313) at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:506) at org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:844) at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:644) at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211) at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:381) at org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:396) at org.mortbay.thread.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:442) Mar 30, 2010 6:44:49 PM com.google.appengine.tools.development.ApiProxyLocalImpl log SEVERE: [1269974689224000] javax.servlet.ServletContext log: loginService: An IncompatibleRemoteServiceException was thrown while processing this call. com.google.gwt.user.client.rpc.IncompatibleRemoteServiceException: Parameter 0 of is of an unknown type 'java.lang.String/2004016611' at com.google.gwt.user.server.rpc.RPC.decodeRequest(RPC.java:277) at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164) at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86) at javax.servlet.http.HttpServlet.service(HttpServlet.java:713) at javax.servlet.http.HttpServlet.service(HttpServlet.java:806) at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093) at com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:51) at org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084) at com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:43) at
Re: newbie question, problem adding jar library
hi guys it took much time for this post to be approved by moderators anyway I have solved the problem yesterday by disabling google app engine ^_^ - chris:Thank you I am going to need this before deploying my server side code Victor: exactly , I work on netbeans always and it is very easy but I use eclipse for GWT projects Sir: Thank you very much , disabling google app engine is the solution -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: newbie question, problem adding jar library
You may have accidentally enabled Google App Engine. Try disabling it for your project in eclipse. App Engine does not allow you to use databases, and you are likely to get the error you pasted. --Sri http://blog.530geeks.com 2010/3/12 Víctor Llorens Vilella victor.llor...@gmail.com At least in netbeans, there's an option in to include selected library in war file. On 11 March 2010 18:37, Chris Lercher cl_for_mail...@gmx.net wrote: Hi, adding it to the build path isn't enough in this case. The jar has to be found by the server at runtime. To achieve this, you can put the jar in the directory war/WEB-INF/lib. Chris On Mar 11, 12:25 am, khalid khalid@gmail.com wrote: Hello every one I am making this simple application where the user fills some fields and makes an RPC to save these info in a DB anyway the server method uses the popular: Connection , PreparedStatement ,... etc classes which are in the mysql-connector jar file I think so ^_^ I have followed these steps to add the library but no luck steps here:http://www.wikihow.com/Add-JARs-to-Project-Build-Paths-in- Eclipse-%28Java%29 I still get java.lang.ClassNotFoundException: com.mysql.jdbc.Driver Can you please help me, I am new to GWT and I plan to use it for my Graduation project ^_^ Thank you very much -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Victor Llorens Vilella -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: newbie question, problem adding jar library
Hi, adding it to the build path isn't enough in this case. The jar has to be found by the server at runtime. To achieve this, you can put the jar in the directory war/WEB-INF/lib. Chris On Mar 11, 12:25 am, khalid khalid@gmail.com wrote: Hello every one I am making this simple application where the user fills some fields and makes an RPC to save these info in a DB anyway the server method uses the popular: Connection , PreparedStatement ,... etc classes which are in the mysql-connector jar file I think so ^_^ I have followed these steps to add the library but no luck steps here:http://www.wikihow.com/Add-JARs-to-Project-Build-Paths-in- Eclipse-%28Java%29 I still get java.lang.ClassNotFoundException: com.mysql.jdbc.Driver Can you please help me, I am new to GWT and I plan to use it for my Graduation project ^_^ Thank you very much -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: newbie question, problem adding jar library
At least in netbeans, there's an option in to include selected library in war file. On 11 March 2010 18:37, Chris Lercher cl_for_mail...@gmx.net wrote: Hi, adding it to the build path isn't enough in this case. The jar has to be found by the server at runtime. To achieve this, you can put the jar in the directory war/WEB-INF/lib. Chris On Mar 11, 12:25 am, khalid khalid@gmail.com wrote: Hello every one I am making this simple application where the user fills some fields and makes an RPC to save these info in a DB anyway the server method uses the popular: Connection , PreparedStatement ,... etc classes which are in the mysql-connector jar file I think so ^_^ I have followed these steps to add the library but no luck steps here:http://www.wikihow.com/Add-JARs-to-Project-Build-Paths-in- Eclipse-%28Java%29 I still get java.lang.ClassNotFoundException: com.mysql.jdbc.Driver Can you please help me, I am new to GWT and I plan to use it for my Graduation project ^_^ Thank you very much -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Victor Llorens Vilella -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Newbie question
Hey John, You can try to add the GWT 1.4 SDK: Go to your Eclipse preferences, then Google - GWT on the side bar, and then add another entry to the list box pointed to your GWT 1.4 SDK. After that, you'll want to create a new GWT project pointed at your existing source code. Please let us know if you run into any issues. jason On Sun, Sep 13, 2009 at 11:51 AM, John Restrepo johnjaime.restr...@gmail.com wrote: Hi guys, excuse me for the newbie question but I'm new with GWT. I have to modify some widget with a suggestion box that interact with a database, the thing is when I open it with Eclipse it doesn't recognize anything the import com.google cannot be resolved, maybe the problem is that I'm modifying with GWT 1.7 and it's developed with GWT 1.4, what can I do? Thanks for the help 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: Newbie question
No problem. Unfortunately, the issue you're now seeing will be harder to tackle. See http://code.google.com/p/google-web-toolkit/issues/detail?id=1792 for a long discussion. It looks like it was fixed in GWT 1.5, but I think there are some workarounds for older versions interspersed in that issue. If possible, I'd recommend upgrading GWT ;) jason On Mon, Sep 14, 2009 at 12:19 PM, John Restrepo johnjaime.restr...@gmail.com wrote: It worked! thanks a lot Jason, new thing learned :P But now, I got this error when try to compile: 2009-09-14 11:10:12.494 java[6097:80f] [Java CocoaComponent compatibility mode]: Enabled 2009-09-14 11:10:12.497 java[6097:80f] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.10 Exception in thread AWT-EventQueue-0 java.lang.NullPointerException at apple.awt.CGraphicsEnvironment.displayChanged (CGraphicsEnvironment.java:65) at apple.awt.CToolkit$4.run(CToolkit.java:1310) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:461) at java.awt.EventDispatchThread.pumpOneEventForHierarchy (EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java: 184) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java: 176) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) Invalid memory access of location 0x0 eip=0x0 I have no idea what it means :\ On 14 sep, 09:20, Jason Parekh jasonpar...@gmail.com wrote: Hey John, You can try to add the GWT 1.4 SDK: Go to your Eclipse preferences, then Google - GWT on the side bar, and then add another entry to the list box pointed to your GWT 1.4 SDK. After that, you'll want to create a new GWT project pointed at your existing source code. Please let us know if you run into any issues. jason On Sun, Sep 13, 2009 at 11:51 AM, John Restrepo johnjaime.restr...@gmail.com wrote: Hi guys, excuse me for the newbie question but I'm new with GWT. I have to modify some widget with a suggestion box that interact with a database, the thing is when I open it with Eclipse it doesn't recognize anything the import com.google cannot be resolved, maybe the problem is that I'm modifying with GWT 1.7 and it's developed with GWT 1.4, what can I do? Thanks for the help 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: Newbie question
It worked! thanks a lot Jason, new thing learned :P But now, I got this error when try to compile: 2009-09-14 11:10:12.494 java[6097:80f] [Java CocoaComponent compatibility mode]: Enabled 2009-09-14 11:10:12.497 java[6097:80f] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.10 Exception in thread AWT-EventQueue-0 java.lang.NullPointerException at apple.awt.CGraphicsEnvironment.displayChanged (CGraphicsEnvironment.java:65) at apple.awt.CToolkit$4.run(CToolkit.java:1310) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:461) at java.awt.EventDispatchThread.pumpOneEventForHierarchy (EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java: 184) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java: 176) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) Invalid memory access of location 0x0 eip=0x0 I have no idea what it means :\ On 14 sep, 09:20, Jason Parekh jasonpar...@gmail.com wrote: Hey John, You can try to add the GWT 1.4 SDK: Go to your Eclipse preferences, then Google - GWT on the side bar, and then add another entry to the list box pointed to your GWT 1.4 SDK. After that, you'll want to create a new GWT project pointed at your existing source code. Please let us know if you run into any issues. jason On Sun, Sep 13, 2009 at 11:51 AM, John Restrepo johnjaime.restr...@gmail.com wrote: Hi guys, excuse me for the newbie question but I'm new with GWT. I have to modify some widget with a suggestion box that interact with a database, the thing is when I open it with Eclipse it doesn't recognize anything the import com.google cannot be resolved, maybe the problem is that I'm modifying with GWT 1.7 and it's developed with GWT 1.4, what can I do? Thanks for the help 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: Newbie question
Ok, thanks again, due to short time I'll omit this part :( At least I can work in web mode… thanks for everything ;) On Sep 14, 11:27 am, Jason Parekh jasonpar...@gmail.com wrote: No problem. Unfortunately, the issue you're now seeing will be harder to tackle. Seehttp://code.google.com/p/google-web-toolkit/issues/detail?id=1792for a long discussion. It looks like it was fixed in GWT 1.5, but I think there are some workarounds for older versions interspersed in that issue. If possible, I'd recommend upgrading GWT ;) jason On Mon, Sep 14, 2009 at 12:19 PM, John Restrepo johnjaime.restr...@gmail.com wrote: It worked! thanks a lot Jason, new thing learned :P But now, I got this error when try to compile: 2009-09-14 11:10:12.494 java[6097:80f] [Java CocoaComponent compatibility mode]: Enabled 2009-09-14 11:10:12.497 java[6097:80f] [Java CocoaComponent compatibility mode]: Setting timeout for SWT to 0.10 Exception in thread AWT-EventQueue-0 java.lang.NullPointerException at apple.awt.CGraphicsEnvironment.displayChanged (CGraphicsEnvironment.java:65) at apple.awt.CToolkit$4.run(CToolkit.java:1310) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209) at java.awt.EventQueue.dispatchEvent(EventQueue.java:461) at java.awt.EventDispatchThread.pumpOneEventForHierarchy (EventDispatchThread.java:269) at java.awt.EventDispatchThread.pumpEventsForHierarchy (EventDispatchThread.java:190) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java: 184) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java: 176) at java.awt.EventDispatchThread.run(EventDispatchThread.java:110) Invalid memory access of location 0x0 eip=0x0 I have no idea what it means :\ On 14 sep, 09:20, Jason Parekh jasonpar...@gmail.com wrote: Hey John, You can try to add the GWT 1.4 SDK: Go to your Eclipse preferences, then Google - GWT on the side bar, and then add another entry to the list box pointed to your GWT 1.4 SDK. After that, you'll want to create a new GWT project pointed at your existing source code. Please let us know if you run into any issues. jason On Sun, Sep 13, 2009 at 11:51 AM, John Restrepo johnjaime.restr...@gmail.com wrote: Hi guys, excuse me for the newbie question but I'm new with GWT. I have to modify some widget with a suggestion box that interact with a database, the thing is when I open it with Eclipse it doesn't recognize anything the import com.google cannot be resolved, maybe the problem is that I'm modifying with GWT 1.7 and it's developed with GWT 1.4, what can I do? Thanks for the help 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: Newbie question(File Permissions issue in GWT)
Web apps in general cannot access random files on the client machine, which may (I'm not sure) have something to do with your problem. To test this, try putting your file in a folder called public under the same parent folder as your client and server folders. This should get copied to a folder having the same name as your application under the war folder when you build your application (this is the folder where the GWT-generated Javascript resides, wrapped in uniquely-named HTML files). You should then be able to load the file from your application using an HTTP GET (e.g., using the GWT RequestBuilder class). On Jul 28, 8:26 am, Rumpole6 barry.benow...@gmail.com wrote: This may not be the right place for this, but: I am using the gwt plugin in eclipse under Windows XP to write an small application and I am facing File Permission Errors trying to access files in the server code when I run my app in hosted mode. I suspect that there is an option to set somewhere which will allow me to access the files. The Files are located in C:\Documents and Settings \Barry\Application Data\Subversion. Thanks in advance. Barry --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie question(File Permissions issue in GWT)
Is it possible that Barry isn't your account? On 28 Jul., 17:26, Rumpole6 barry.benow...@gmail.com wrote: This may not be the right place for this, but: I am using the gwt plugin in eclipse under Windows XP to write an small application and I am facing File Permission Errors trying to access files in the server code when I run my app in hosted mode. I suspect that there is an option to set somewhere which will allow me to access the files. The Files are located in C:\Documents and Settings \Barry\Application Data\Subversion. Thanks in advance. Barry --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie Question. Windows 7 + Eclispe 3.4 + GWT 1.7 + Debug + Getting Started Tutorial.
There is an issue with JDK 1.6.0_14 and debugging. Are you using this JDK? If so, downgrade to 1.6.0_13 to workaround this problem. On Fri, Jul 24, 2009 at 5:44 PM, Howard Tan howard@gmail.com wrote: Hi, I've been combing through the Getting Started guide, and I got everything to work except this page. http://code.google.com/webtoolkit/tutorials/1.6/debug.html I've followed the directions and it doesn't work. The tutorial runs normally and it doesn't break at the breakpoints. Anybody got any ideas? I must be doing something wrong, and it's probably something simple. Please help, Thanks, Howard --~--~-~--~~~---~--~~ 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: Newbie Question. Windows 7 + Eclispe 3.4 + GWT 1.7 + Debug + Getting Started Tutorial.
Excellent. It works as described. I've downgraded to jdk 1.6.0_13 from jre 1.6.0_14. Thanks! Howard On Jul 27, 7:40 am, Rajeev Dayal rda...@google.com wrote: There is an issue with JDK 1.6.0_14 and debugging. Are you using this JDK? If so, downgrade to 1.6.0_13 to workaround this problem. On Fri, Jul 24, 2009 at 5:44 PM, Howard Tan howard@gmail.com wrote: Hi, I've been combing through the Getting Started guide, and I got everything to work except this page. http://code.google.com/webtoolkit/tutorials/1.6/debug.html I've followed the directions and it doesn't work. The tutorial runs normally and it doesn't break at the breakpoints. Anybody got any ideas? I must be doing something wrong, and it's probably something simple. Please help, Thanks, Howard --~--~-~--~~~---~--~~ 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: Newbie Question. Windows 7 + Eclispe 3.4 + GWT 1.7 + Debug + Getting Started Tutorial.
*you cant open anything,, mail any of that if this is true,, replay back,, i use a chat room that i can show u step by step.* On Fri, Jul 24, 2009 at 4:44 PM, Howard Tan howard@gmail.com wrote: Hi, I've been combing through the Getting Started guide, and I got everything to work except this page. http://code.google.com/webtoolkit/tutorials/1.6/debug.html I've followed the directions and it doesn't work. The tutorial runs normally and it doesn't break at the breakpoints. Anybody got any ideas? I must be doing something wrong, and it's probably something simple. Please help, Thanks, Howard --~--~-~--~~~---~--~~ 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: Newbie question regarding web-application design
Thanks a lot for the suggestions. I tried them out to learn the methods. For my project, I am going ahead with what Sky suggested. It's turning out much better than my lazy XML Http requests :) Thanks, -neha nay-ha On Sun, Jul 12, 2009 at 10:41 AM, Sky myonceinalifet...@gmail.com wrote: Given your description then to be honest I would agree you could do something better than XML HTTPrequest or Java RPC. But it seriously depends on how your app works and what your requirements are. What I would suggest is that you dump the data onto the page in the initial page request. Since the data rarely changes and IFF the client is unlikely to maintain a long session, then this might be a better approach. You would have to be ok with the fact that they won't get updated data until they hit the refresh button as opposed to clicking on the button leading to the page containing the 20 check boxes. If this is unacceptable and you require that when the user clicks on the menu button or w/e links them to that page will build the page afresh, then your current design is the only correct way (but as mentioned might be able to have improved performance via Java RPC) If its ok to just dump it to the initial page request, your server side code must simply modify the GWT html file, inserting the data as regular javascript, like an array of values or whatever it is.Your GWT code would need to interface to some handwritten Javascript that assumes the name of that javascript array exists and loads its contents. Pretty easy. hope this helps On Jul 10, 11:43 am, Kamal Chandana Mettananda lka...@gmail.com wrote: Just to add to that; if you are using Java on your server side you may be planning to use Servlets. If that's the case you can have a look at the following tutorial. http://lkamal.blogspot.com/2008/09/java-gwt-servlets-web-app-tutorial... Cheers. On Fri, Jul 10, 2009 at 9:58 PM, Jimjim.p...@gmail.com wrote: If you plan to use Java for your server side, you don't have to use XML http requests. You can use the built-in RPC to retrieve Java objects from server and send to GWT clients or vice versa. That is a big advantage to stick to Java in server side. You can find an example inhttp://www.gwtorm.com/gwtMail.jsp. Jim http://www.gwtorm.com http://code.google.com/p/dreamsource-orm/ On Jul 10, 10:54 am, Neha Chachra neha.chac...@gmail.com wrote: Hi, I started using GWT only about a week ago and I have rather little experience with client-server interactions so I wish to make sure that I am headed in the right direction. Though, I am guessing that the question is not directly related to GWT and I apologize for that. Basically, I am making a webpage. Depending on the data in SQL server, I need to render widgets on the page. As a simple example, if there are 20 data items, then I need to make 20 check boxes with the labels as retrieved from the server. The data on the server changes rather infrequently. While I am able to do this currently, I have a feeling it's not the best approach to the problem. I am making XML Http requests to the server, and then I parse the data and render the widgets accordingly on the fly. I am wondering if that's a good solution... I am confused because it feels like I have the data already, then I should be able to avoid data requests and the consequent delay in rendering. But with this approach, I can't think of a way to update the webpage appropriately if the data in the SQL server changes. Any opinions/suggestions? Thanks a lot, Neha --~--~-~--~~~---~--~~ 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: Newbie question regarding web-application design
Given your description then to be honest I would agree you could do something better than XML HTTPrequest or Java RPC. But it seriously depends on how your app works and what your requirements are. What I would suggest is that you dump the data onto the page in the initial page request. Since the data rarely changes and IFF the client is unlikely to maintain a long session, then this might be a better approach. You would have to be ok with the fact that they won't get updated data until they hit the refresh button as opposed to clicking on the button leading to the page containing the 20 check boxes. If this is unacceptable and you require that when the user clicks on the menu button or w/e links them to that page will build the page afresh, then your current design is the only correct way (but as mentioned might be able to have improved performance via Java RPC) If its ok to just dump it to the initial page request, your server side code must simply modify the GWT html file, inserting the data as regular javascript, like an array of values or whatever it is.Your GWT code would need to interface to some handwritten Javascript that assumes the name of that javascript array exists and loads its contents. Pretty easy. hope this helps On Jul 10, 11:43 am, Kamal Chandana Mettananda lka...@gmail.com wrote: Just to add to that; if you are using Java on your server side you may be planning to use Servlets. If that's the case you can have a look at the following tutorial. http://lkamal.blogspot.com/2008/09/java-gwt-servlets-web-app-tutorial... Cheers. On Fri, Jul 10, 2009 at 9:58 PM, Jimjim.p...@gmail.com wrote: If you plan to use Java for your server side, you don't have to use XML http requests. You can use the built-in RPC to retrieve Java objects from server and send to GWT clients or vice versa. That is a big advantage to stick to Java in server side. You can find an example inhttp://www.gwtorm.com/gwtMail.jsp. Jim http://www.gwtorm.com http://code.google.com/p/dreamsource-orm/ On Jul 10, 10:54 am, Neha Chachra neha.chac...@gmail.com wrote: Hi, I started using GWT only about a week ago and I have rather little experience with client-server interactions so I wish to make sure that I am headed in the right direction. Though, I am guessing that the question is not directly related to GWT and I apologize for that. Basically, I am making a webpage. Depending on the data in SQL server, I need to render widgets on the page. As a simple example, if there are 20 data items, then I need to make 20 check boxes with the labels as retrieved from the server. The data on the server changes rather infrequently. While I am able to do this currently, I have a feeling it's not the best approach to the problem. I am making XML Http requests to the server, and then I parse the data and render the widgets accordingly on the fly. I am wondering if that's a good solution... I am confused because it feels like I have the data already, then I should be able to avoid data requests and the consequent delay in rendering. But with this approach, I can't think of a way to update the webpage appropriately if the data in the SQL server changes. Any opinions/suggestions? Thanks a lot, Neha --~--~-~--~~~---~--~~ 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: Newbie question regarding web-application design
If you plan to use Java for your server side, you don't have to use XML http requests. You can use the built-in RPC to retrieve Java objects from server and send to GWT clients or vice versa. That is a big advantage to stick to Java in server side. You can find an example in http://www.gwtorm.com/gwtMail.jsp. Jim http://www.gwtorm.com http://code.google.com/p/dreamsource-orm/ On Jul 10, 10:54 am, Neha Chachra neha.chac...@gmail.com wrote: Hi, I started using GWT only about a week ago and I have rather little experience with client-server interactions so I wish to make sure that I am headed in the right direction. Though, I am guessing that the question is not directly related to GWT and I apologize for that. Basically, I am making a webpage. Depending on the data in SQL server, I need to render widgets on the page. As a simple example, if there are 20 data items, then I need to make 20 check boxes with the labels as retrieved from the server. The data on the server changes rather infrequently. While I am able to do this currently, I have a feeling it's not the best approach to the problem. I am making XML Http requests to the server, and then I parse the data and render the widgets accordingly on the fly. I am wondering if that's a good solution... I am confused because it feels like I have the data already, then I should be able to avoid data requests and the consequent delay in rendering. But with this approach, I can't think of a way to update the webpage appropriately if the data in the SQL server changes. Any opinions/suggestions? Thanks a lot, Neha --~--~-~--~~~---~--~~ 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: Newbie question regarding web-application design
Just to add to that; if you are using Java on your server side you may be planning to use Servlets. If that's the case you can have a look at the following tutorial. http://lkamal.blogspot.com/2008/09/java-gwt-servlets-web-app-tutorial.html Cheers. On Fri, Jul 10, 2009 at 9:58 PM, Jimjim.p...@gmail.com wrote: If you plan to use Java for your server side, you don't have to use XML http requests. You can use the built-in RPC to retrieve Java objects from server and send to GWT clients or vice versa. That is a big advantage to stick to Java in server side. You can find an example in http://www.gwtorm.com/gwtMail.jsp. Jim http://www.gwtorm.com http://code.google.com/p/dreamsource-orm/ On Jul 10, 10:54 am, Neha Chachra neha.chac...@gmail.com wrote: Hi, I started using GWT only about a week ago and I have rather little experience with client-server interactions so I wish to make sure that I am headed in the right direction. Though, I am guessing that the question is not directly related to GWT and I apologize for that. Basically, I am making a webpage. Depending on the data in SQL server, I need to render widgets on the page. As a simple example, if there are 20 data items, then I need to make 20 check boxes with the labels as retrieved from the server. The data on the server changes rather infrequently. While I am able to do this currently, I have a feeling it's not the best approach to the problem. I am making XML Http requests to the server, and then I parse the data and render the widgets accordingly on the fly. I am wondering if that's a good solution... I am confused because it feels like I have the data already, then I should be able to avoid data requests and the consequent delay in rendering. But with this approach, I can't think of a way to update the webpage appropriately if the data in the SQL server changes. Any opinions/suggestions? Thanks a lot, Neha --~--~-~--~~~---~--~~ 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: Newbie question re returning persisted objects via RPC to client
I took a slightly different approach to option 1. I created a interfaces that describe the Animal and made both the DTO and GWT implement the interfaces. This lets me control the dependencies and ended up cutting down on the amount data I needed to send to the browser. I'm actually referring to a scheduling application but to keep the Animal analogy I found that the majority of components only needed to know the animal's species and age, not every detail that was in the object. On Jun 29, 12:34 am, Dalla dalla_man...@hotmail.com wrote: You would have to do it either like you suggested; create two separate classes, one persistence class, and then one DTO class. Or you could create just a POJO and keep the persistence info in a separate mapping file. From what I understand, most tend to go with the first option. On 28 Juni, 14:09, Ben Daniel bendan...@gmail.com wrote: Let's say I want to persist Animal objects using JDO and also want to return these Animal objects via a GWT RPC service. From what I understand GWT will compile a version of Animal in javascript on the client. And I take it that any JDO persistence stuff shouldn't be going down to the client. So do I have to create two separate classes for my Animal type: one used on the server for persistence via JDO and another which the client uses over RPC. Is this the normal thing to do? --~--~-~--~~~---~--~~ 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: Newbie question re returning persisted objects via RPC to client
Hi, I wrote an example using gwt with java app engine. http://puntosoft2k.appspot.com/gwt_gae_example.html The example shows how to create, update, delete and retrieve objects from app engine datastore to GWT client using RPC. The example use DTO approach. Source code is available. Hope that helps. Regards, Ale On Sun, Jun 28, 2009 at 9:09 AM, Ben Daniel bendan...@gmail.com wrote: Let's say I want to persist Animal objects using JDO and also want to return these Animal objects via a GWT RPC service. From what I understand GWT will compile a version of Animal in javascript on the client. And I take it that any JDO persistence stuff shouldn't be going down to the client. So do I have to create two separate classes for my Animal type: one used on the server for persistence via JDO and another which the client uses over RPC. Is this the normal thing to do? --~--~-~--~~~---~--~~ 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: Newbie question re returning persisted objects via RPC to client
You would have to do it either like you suggested; create two separate classes, one persistence class, and then one DTO class. Or you could create just a POJO and keep the persistence info in a separate mapping file. From what I understand, most tend to go with the first option. On 28 Juni, 14:09, Ben Daniel bendan...@gmail.com wrote: Let's say I want to persist Animal objects using JDO and also want to return these Animal objects via a GWT RPC service. From what I understand GWT will compile a version of Animal in javascript on the client. And I take it that any JDO persistence stuff shouldn't be going down to the client. So do I have to create two separate classes for my Animal type: one used on the server for persistence via JDO and another which the client uses over RPC. Is this the normal thing to do? --~--~-~--~~~---~--~~ 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: Newbie Question - Integrate GWT on Existing page
In the default application that is created using the webAppCreator.cmd or the Eclipse plugin you will see they add specific elements to specefic parts of the page. In the HTML under the body you will see: table align=center tr td colspan=2 style=font-weight:bold;Please enter your name:/td /tr tr td id=nameFieldContainer/td td id=sendButtonContainer/td /tr /table Then in the corresponding GWT code you will see: RootPanel.get(nameFieldContainer).add(nameField); RootPanel.get(sendButtonContainer).add(sendButton); So it's going to put those widgets in the .add() exactly where the id is. So you could use the same idea to place your ticker exactly where you want it. Hope this helps. On Jun 24, 12:12 am, Andrew Myers am2...@gmail.com wrote: Thanks Pavel I will give it a try. I am going nuts with some Javascript libraries at the moment, and hopefully this will be much easier for me as a Java programmer :-)_ 2009/6/24 Pavel Byles pavelby...@gmail.com Sure it's feasible. Just create ur GWT widget and include the *.nocache.js file in your html. You can use GWT to place the widget anywhere on your page. On Tue, Jun 23, 2009 at 10:32 PM, Andrew am2...@gmail.com wrote: Hi All, Is it possible to integrate GWT onto an existing page? For example, if I wanted to write a GWT news ticker or something similar and put it into a block on the homepage of an existing site, is this feasible? And if so, are there any examples avialable? Most of the examples I have found seem to pertain to when you are writing the whole app in GWT. Thanks! Andrew. -- -Pav --~--~-~--~~~---~--~~ 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: Newbie Question - Integrate GWT on Existing page
Sure it's feasible. Just create ur GWT widget and include the *.nocache.js file in your html. You can use GWT to place the widget anywhere on your page. On Tue, Jun 23, 2009 at 10:32 PM, Andrew am2...@gmail.com wrote: Hi All, Is it possible to integrate GWT onto an existing page? For example, if I wanted to write a GWT news ticker or something similar and put it into a block on the homepage of an existing site, is this feasible? And if so, are there any examples avialable? Most of the examples I have found seem to pertain to when you are writing the whole app in GWT. Thanks! Andrew. -- -Pav --~--~-~--~~~---~--~~ 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: Newbie Question - Integrate GWT on Existing page
Thanks Pavel I will give it a try. I am going nuts with some Javascript libraries at the moment, and hopefully this will be much easier for me as a Java programmer :-)_ 2009/6/24 Pavel Byles pavelby...@gmail.com Sure it's feasible. Just create ur GWT widget and include the *.nocache.js file in your html. You can use GWT to place the widget anywhere on your page. On Tue, Jun 23, 2009 at 10:32 PM, Andrew am2...@gmail.com wrote: Hi All, Is it possible to integrate GWT onto an existing page? For example, if I wanted to write a GWT news ticker or something similar and put it into a block on the homepage of an existing site, is this feasible? And if so, are there any examples avialable? Most of the examples I have found seem to pertain to when you are writing the whole app in GWT. Thanks! Andrew. -- -Pav --~--~-~--~~~---~--~~ 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: Newbie question about war file deployment for Tomcat
In your ApplicationName.gwt.xml, there is an attribute rename like module rename-to=showcase, so you just try http://localhost:8080/showcase/ApplicationName.html. Jim http://www.gwtorm.com http://code.google.com/p/dreamsource-orm/ On May 12, 7:48 am, bartomas barto...@gmail.com wrote: Hi, I've generated a war file using GWT. I have placed it in the webapps folder of the tomcat directory (which is installed locally). How do I now start the application from a client browser? I have triedhttp://localhost:8080/ApplicationName but it doesnt work. I guess I'm missing something basic. Thanks very much for any help. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: newbie question - link event handling
public class MyHyperlink extends Hyperlink
{
public MyHyperlink(Element e)
{
super(e);
}
}
Then find the Element you want using DOM or gquery pass it to your the
constructor. Not sure why it's protected in Hyperlink. Then use the
handlers/listeners as for a regular widget.
On Sat, Apr 11, 2009 at 1:56 AM, Adam T adam.t...@gmail.com wrote:
Hi Joe,
Maybe the History class can help you here. It allows you to pick a
token off the url and change you applications status appropriately -
a token is essentially everything after the hash (#)
In the case where a user navigates to a url such as
http://gwt.google.com/samples/Mail/Mail.html#foo the token would be
foo and the history class would pick this up and act appropriately.
Similarly when you click on your hyperlink it would change the URL
from http://somthing to http://something#foo.
A google search on gwt history should bring up a few tutorials (though
they will most likely use GWT 1.5 and not the new GWT 1.6 syntax, but
that should be OK for now - the new 1.6 syntax would use
ValueChangeHandlerString and the History.addValueChange() method
instead of HistoryListeners classes and History.addHistoryListener()
method - I'd suggest get used to the old approach before switching to
the new one)
Hope that helps, at least a bit!
//Adam
On 10 Apr, 14:46, Joe Hudson joe...@gmail.com wrote:
hello,
I know this is a silly question but I haven't found a reference to
this...
If I have links within the html document but outside of the GWT
application (see the #foo link below). How can I (or, is this
possible) to capture this event from within the GWT application?
body
a href=#foohow can I get this link event in the GWT app?/a
script type=text/javascript language='javascript'
src='com.google.gwt.sample.mail.Mail.nocache.js'/script
/body
Also, if I am coming to the app for the first time and I provide a
link likehttp://gwt.google.com/samples/Mail/Mail.html#foo
How, in the app would I know that the foo name was passed?
Thank you very much for the help.
Joe
--~--~-~--~~~---~--~~
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
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Re: newbie question - link event handling
Thank you Vitali and Adam for you help, that is exactly what I needed to
know - I'll try it out.
Joe
On Sat, Apr 11, 2009 at 2:09 AM, Vitali Lovich vlov...@gmail.com wrote:
public class MyHyperlink extends Hyperlink
{
public MyHyperlink(Element e)
{
super(e);
}
}
Then find the Element you want using DOM or gquery pass it to your the
constructor. Not sure why it's protected in Hyperlink. Then use the
handlers/listeners as for a regular widget.
On Sat, Apr 11, 2009 at 1:56 AM, Adam T adam.t...@gmail.com wrote:
Hi Joe,
Maybe the History class can help you here. It allows you to pick a
token off the url and change you applications status appropriately -
a token is essentially everything after the hash (#)
In the case where a user navigates to a url such as
http://gwt.google.com/samples/Mail/Mail.html#foo the token would be
foo and the history class would pick this up and act appropriately.
Similarly when you click on your hyperlink it would change the URL
from http://somthing to http://something#foo.
A google search on gwt history should bring up a few tutorials (though
they will most likely use GWT 1.5 and not the new GWT 1.6 syntax, but
that should be OK for now - the new 1.6 syntax would use
ValueChangeHandlerString and the History.addValueChange() method
instead of HistoryListeners classes and History.addHistoryListener()
method - I'd suggest get used to the old approach before switching to
the new one)
Hope that helps, at least a bit!
//Adam
On 10 Apr, 14:46, Joe Hudson joe...@gmail.com wrote:
hello,
I know this is a silly question but I haven't found a reference to
this...
If I have links within the html document but outside of the GWT
application (see the #foo link below). How can I (or, is this
possible) to capture this event from within the GWT application?
body
a href=#foohow can I get this link event in the GWT app?/a
script type=text/javascript language='javascript'
src='com.google.gwt.sample.mail.Mail.nocache.js'/script
/body
Also, if I am coming to the app for the first time and I provide a
link likehttp://gwt.google.com/samples/Mail/Mail.html#foo
How, in the app would I know that the foo name was passed?
Thank you very much for the help.
Joe
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Re: newbie question - link event handling
Hi Joe, Maybe the History class can help you here. It allows you to pick a token off the url and change you applications status appropriately - a token is essentially everything after the hash (#) In the case where a user navigates to a url such as http://gwt.google.com/samples/Mail/Mail.html#foo the token would be foo and the history class would pick this up and act appropriately. Similarly when you click on your hyperlink it would change the URL from http://somthing to http://something#foo. A google search on gwt history should bring up a few tutorials (though they will most likely use GWT 1.5 and not the new GWT 1.6 syntax, but that should be OK for now - the new 1.6 syntax would use ValueChangeHandlerString and the History.addValueChange() method instead of HistoryListeners classes and History.addHistoryListener() method - I'd suggest get used to the old approach before switching to the new one) Hope that helps, at least a bit! //Adam On 10 Apr, 14:46, Joe Hudson joe...@gmail.com wrote: hello, I know this is a silly question but I haven't found a reference to this... If I have links within the html document but outside of the GWT application (see the #foo link below). How can I (or, is this possible) to capture this event from within the GWT application? body a href=#foohow can I get this link event in the GWT app?/a script type=text/javascript language='javascript' src='com.google.gwt.sample.mail.Mail.nocache.js'/script /body Also, if I am coming to the app for the first time and I provide a link likehttp://gwt.google.com/samples/Mail/Mail.html#foo How, in the app would I know that the foo name was passed? Thank you very much for the help. Joe --~--~-~--~~~---~--~~ 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: Newbie question
Thanks Paul !! On Apr 3, 7:03 pm, Paul Robinson ukcue...@gmail.com wrote: redzediwrote: Hi All, Here are a couple of elementary questions, pardon me if they sound very naive but i really really need to know the answer :- 1. why do we need to do a setEndPoint on the client-side stub we get from GWT.create() ?? because you choose what the name of your servlet will be in your web.xml. It can't know what name you put in there. 2. is the resultant stub as thus created threadsafe or is their any kind of restrictions of its being used simultaneously i.e can i save a reference of the stub as a static variable and call it from anywhere in my code ?? Client-side GWT code runs in the browser and is therefore single-threaded. Paul --~--~-~--~~~---~--~~ 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: Newbie question
redzedi wrote: Hi All, Here are a couple of elementary questions, pardon me if they sound very naive but i really really need to know the answer :- 1. why do we need to do a setEndPoint on the client-side stub we get from GWT.create() ?? because you choose what the name of your servlet will be in your web.xml. It can't know what name you put in there. 2. is the resultant stub as thus created threadsafe or is their any kind of restrictions of its being used simultaneously i.e can i save a reference of the stub as a static variable and call it from anywhere in my code ?? Client-side GWT code runs in the browser and is therefore single-threaded. Paul --~--~-~--~~~---~--~~ 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: Newbie Question on GWT/JSON
Whoops, forgot my footnote: [1] http://www.ietf.org/rfc/rfc4627.txt I don't know if that makes it official. I believe the official entity that vets mime types is IANA, but on their site I couldn't quickly get to an official list of recognized mime types. Still, if Doug Crockford says the type is application/json, and almost everyone uses that, that's the standard. That's how the internet works; standards bodies can wax rhapsodic about whatever they fancy, but if no one does it, it's not something you should be doing either, regardless of whether or not its the 'official standard', so, there you have it. Oh, and martykube: Be careful that your soul doesn't waft out the window that is giving you that fresh air. As a general rule, if PHP is a good fit for you, grails, rails, or django are usually an even better fit. On Jan 4, 11:48 pm, rakesh wagh rake...@gmail.com wrote: You probably got your answer by now. Think this way. JSON string is like any other string. The transport mechanism does not have to know weather it is json or text or number or binary or otherwise. With that said, you can use forms with get or post(knowing the advantages drawback of each will help you select the right mechanism) and simply posting it to your php page. In your php page, read the request parameters as if they were any other parameters. As a matter of fact you can even append the json string as part of your target page url with a variable name and expect the json string (with a hyperlink click) to reach its destination as expected. Good luck! Rakesh Wagh On Jan 3, 9:09 pm, Ian ikra...@gmail.com wrote: I am new to the Web application world; I am trying to encapsulate my set of data in a JSONObject, convert to string, and send it (async POST) to a PHP page using GWT's RequestBuilder. GWT's tutorial discusses the trip from the server back to the client and not the other way around where I am unclear about. Do I need to set the header? Currently I set it to: builder.setHeader(Content-Type, application/x-www-form- urlencoded); However, this works fine as long as am sending key1=value1key2=values where I can retrieve variable via $_POST ['key1'] or $_POST['key2'] But I am not sure how to send a JSON string where it can be retrieved in a php page. I have tried sending myvar=MyJsonString but cannot retrieve in my php page. How should $_POST reference the JSON object? Any clarification would be much appreciated. Thanks, Ian --~--~-~--~~~---~--~~ 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: Newbie Question on GWT/JSON
On Sun, Jan 4, 2009 at 11:31 PM, Reinier Zwitserloot reini...@gmail.com wrote: JSON's mimetype is application/json (see [1] below). You missed the [1] below part and my interest is piqued. Is application/json an officially accepted MIME type? Oh, PHP. Every single time someone posts a code snippet written in PHP, my aesthetic sense blows its brains out in sheer despair. And this one is up there, which is really saying something. I think its a conspiracy by the zend folks to make the inner child of developers worldwide die a little inside every time they come in contact with it. Sadistic bastards. Too bad the truth can be so inflammatory Ian --~--~-~--~~~---~--~~ 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: Newbie Question on GWT/JSON
You probably got your answer by now. Think this way. JSON string is like any other string. The transport mechanism does not have to know weather it is json or text or number or binary or otherwise. With that said, you can use forms with get or post(knowing the advantages drawback of each will help you select the right mechanism) and simply posting it to your php page. In your php page, read the request parameters as if they were any other parameters. As a matter of fact you can even append the json string as part of your target page url with a variable name and expect the json string (with a hyperlink click) to reach its destination as expected. Good luck! Rakesh Wagh On Jan 3, 9:09 pm, Ian ikra...@gmail.com wrote: I am new to the Web application world; I am trying to encapsulate my set of data in a JSONObject, convert to string, and send it (async POST) to a PHP page using GWT's RequestBuilder. GWT's tutorial discusses the trip from the server back to the client and not the other way around where I am unclear about. Do I need to set the header? Currently I set it to: builder.setHeader(Content-Type, application/x-www-form- urlencoded); However, this works fine as long as am sending key1=value1key2=values where I can retrieve variable via $_POST ['key1'] or $_POST['key2'] But I am not sure how to send a JSON string where it can be retrieved in a php page. I have tried sending myvar=MyJsonString but cannot retrieve in my php page. How should $_POST reference the JSON object? Any clarification would be much appreciated. Thanks, Ian --~--~-~--~~~---~--~~ 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: Newbie Question on GWT/JSON
Whatever possessed you to send the application/x-www-form- urlencoded as mime type? JSON is nothing like form-encoded. That's like sending your HTML as image/jpeg just for kicks. Don't do that. JSON's mimetype is application/json (see [1] below). If you want to be nice, you should actually set that in the header (as follows: Content-type: application/json; encoding=UTF-8 - note that JSON is defined to be UTF-8 encoded, so you're just clarifying there, you can't pick your own encoding). And, yes, of course, in PHP you would have to get the entire request body, instead of letting PHP try to parse it as form data. Possibly PHP is presuming that the data IS form encoded when there is no header at all. Is file_get_contents(php://input); really the only feasible way to get the entire body in PHP? Oh, PHP. Every single time someone posts a code snippet written in PHP, my aesthetic sense blows its brains out in sheer despair. And this one is up there, which is really saying something. I think its a conspiracy by the zend folks to make the inner child of developers worldwide die a little inside every time they come in contact with it. Sadistic bastards. On Jan 4, 6:52 am, Ian ikra...@gmail.com wrote: For those who might be facing a similar problem and others who might be interested in my previous question I have come up with an answer. First my disclaimer: the solution below may not be the proper one but it does work. Now on to the solution: On the GWT Client Side: JSONObject jObject = new JSONObject(); jObject .put(propA, new JSONString(valA)); jObject .put(... RequestBuilder builder = new RequestBuilder(RequestBuilder.POST, YOUR_PHP_URL); builder.sendRequest(jObject.toString(), new YourReponseHandler()); Note that there is no setHeader. On the PHP side: Get the raw data instead of $_POST $jsonReq = file_get_contents(php://input); Decode the json request $request = json_decode($jsonReq); Cheers, Ian On Jan 3, 10:09 pm, Ian ikra...@gmail.com wrote: I am new to the Web application world; I am trying to encapsulate my set of data in a JSONObject, convert to string, and send it (async POST) to a PHP page using GWT's RequestBuilder. GWT's tutorial discusses the trip from the server back to the client and not the other way around where I am unclear about. Do I need to set the header? Currently I set it to: builder.setHeader(Content-Type, application/x-www-form- urlencoded); However, this works fine as long as am sending key1=value1key2=values where I can retrieve variable via $_POST ['key1'] or $_POST['key2'] But I am not sure how to send a JSON string where it can be retrieved in a php page. I have tried sending myvar=MyJsonString but cannot retrieve in my php page. How should $_POST reference the JSON object? Any clarification would be much appreciated. Thanks, Ian --~--~-~--~~~---~--~~ 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: Newbie question - GWT not creating files in Hosted mode.
Doh, thanks Thomas, schoolboy error! On Oct 10, 9:24 am, Thomas Broyer [EMAIL PROTECTED] wrote: On 9 oct, 13:24, fancyplants [EMAIL PROTECTED] wrote: [WARN] Resource not found: com.app.gwt.client.Main.nocache.js; (could a file be missing from the public path or a servlet tag misconfigured in module com.app.gwt.Main.gwt.xml ?) [...] script type=text/javascript language=javascript src=com.app.gwt.client.Main.nocache.js/script Your module is named com.app.gwt.Main, not com.app.gwt.client.Main (which happens to be the name of your module's EntryPoint) --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie question - GWT not creating files in Hosted mode.
On 9 oct, 13:24, fancyplants [EMAIL PROTECTED] wrote: [WARN] Resource not found: com.app.gwt.client.Main.nocache.js; (could a file be missing from the public path or a servlet tag misconfigured in module com.app.gwt.Main.gwt.xml ?) [...] script type=text/javascript language=javascript src=com.app.gwt.client.Main.nocache.js/script Your module is named com.app.gwt.Main, not com.app.gwt.client.Main (which happens to be the name of your module's EntryPoint) --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie question - adding GWT to my existing application
Suri, Let's take it one step at a time. The first problem is your source directive. It should look like this: source path=./ The path is the folder at the root of a hierarchy, not a single file. Since your path was defective, the Client1 source was not found, and that caused the import statement to fail the compile. The rest of the diagnostics you can just ignore. As for you later question, GWT does need the Java source (and does not need the .class files). GWT does have a limitation that inherited source needs to be packaged for inheritance. You can't just throw arbitrary jars at a GWT compile the way you can in actual Java. That's because of the limitations inherent in compiling to Javascript. Walden On Oct 1, 4:51 pm, Suri [EMAIL PROTECTED] wrote: Hi Walden, Here's what I did: 1) My current project is set up with the source code as *project - webroot (all JSP, WEB-INF, etc lie here) - src - package - subpackage - Class1 - Class2 - subpackage2 - Class3* So now when adding GWT here's what i did: 1) I ran the applicationCreator command under the project directory, so if the name of my GWT module is going to be gwt_test *project - webroot - src - gwt_test * So in order to import Class1, i created a subpackage.gwt.xml under the subpackage directory * - subpackage - subpackage.gwt.xml - Class1 - Class2* The contents of this were *module source path=Class1/ /module* Now in my GWT module gwt_test - src - package1 - subpackage - gwt - client - Gwt_test.java I added the import statement to the Gwt_test.java as a regular import - import package.subpackage.Class1 I modified the class path of gwt_test-compile.cmd to contain the additional path to the subpackage.gwt.xml i.e *C:/./subpackage.gwt.xml * Upon trying to GWT compile this, i still get the error Removing units with errors [ERROR] Errors in 'file:/C:/eclipse_workspace/project/gwt_test/src/package1/ subpackage.gwt.client.Gwt_test.java' [ERROR] Line 12: The import package.subpackage.Class1 cannot be resolved Compiling module package1.subpackage.gwt.client.Gwt_test Computing all possible rebind results for 'package1.subpackage.gwt.client.Gwt_test' Rebinding package1.subpackage.gwt.client.Gwt_test.java Checking rule generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/ [ERROR] Unable to find type 'package1.subpackage.gwt.client.Gwt_test' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a r equired module or a module may not be adding its source path entries properly [ERROR] Build failed Actual class names have been substituted for privacy. Let me know what I'm doing wrong. Also additionally, I'd still like to know how to deal with this if I had to be importing from a jar. I ask, because ideally I do not want to be disturbing the current code structure too much and for curiosity I'd like to know the limitation of GWT with this regard. When I do import from a jar, does the jar being used need to have the source files as well as the class files for the project. So for example if I was trying to use some 3rd party or open source jar, then how would this work because most of the time we'd be downloading and using binaries right. Thanks Suri - Hide quoted text - - Show quoted text - On Sep 29, 8:47 am, walden [EMAIL PROTECTED] wrote: Suri, If the current Java code is in the same project where you are adding GWT on the client, you don't need a jar. Your current Java code does have to be sanitized to meet the 'closed world' requirements of the GWT compiler. Read the documentation on the GWT compiler and JRE emulation classes for details. Your current Java code will have to be findable by the GWT compiler, which means there must be a .gwt.xml file on the classpath when you run the GWT compiler (you'll need to create that), and it needs to indicate where the compile sources are. There are basically two ways to approach this part: 1. keep your sources exactly where they are; place your Pkg1.gwt.xml file in the root folder of the smallest containing sub-tree for all the classes you need to include, and use the source path=x/ tag as many times as necessary to indicate (and hopefully isolate) just the classes you want compiled by GWT. 2. do a little folder reorganization so that the classes you will share between server and client side are isolated cleanly; have a 'client' folder at the root of that sub-tree, and place your Pkg1.gwt.xml file as a direct sibling to the client folder. Then you
Re: Newbie question - adding GWT to my existing application
Ah, gotcha. Thanks Walden. I had the initial idea of having the '.' But then refrained thinking I could point to the single class. I mis- understood the first reply then. Thanks for the reply to the second question as well. I'll go ahead and see how this works out. Appreciate the patience. Suri On Oct 2, 8:28 am, walden [EMAIL PROTECTED] wrote: Suri, Let's take it one step at a time. The first problem is your source directive. It should look like this: source path=./ The path is the folder at the root of a hierarchy, not a single file. Since your path was defective, the Client1 source was not found, and that caused the import statement to fail the compile. The rest of the diagnostics you can just ignore. As for you later question, GWT does need the Java source (and does not need the .class files). GWT does have a limitation that inherited source needs to be packaged for inheritance. You can't just throw arbitrary jars at a GWT compile the way you can in actual Java. That's because of the limitations inherent in compiling to Javascript. Walden On Oct 1, 4:51 pm, Suri [EMAIL PROTECTED] wrote: Hi Walden, Here's what I did: 1) My current project is set up with the source code as *project - webroot (all JSP, WEB-INF, etc lie here) - src - package - subpackage - Class1 - Class2 - subpackage2 - Class3* So now when adding GWT here's what i did: 1) I ran the applicationCreator command under the project directory, so if the name of my GWT module is going to be gwt_test *project - webroot - src - gwt_test * So in order to import Class1, i created a subpackage.gwt.xml under the subpackage directory * - subpackage - subpackage.gwt.xml - Class1 - Class2* The contents of this were *module source path=Class1/ /module* Now in my GWT module gwt_test - src - package1 - subpackage - gwt - client - Gwt_test.java I added the import statement to the Gwt_test.java as a regular import - import package.subpackage.Class1 I modified the class path of gwt_test-compile.cmd to contain the additional path to the subpackage.gwt.xml i.e *C:/./subpackage.gwt.xml * Upon trying to GWT compile this, i still get the error Removing units with errors [ERROR] Errors in 'file:/C:/eclipse_workspace/project/gwt_test/src/package1/ subpackage.gwt.client.Gwt_test.java' [ERROR] Line 12: The import package.subpackage.Class1 cannot be resolved Compiling module package1.subpackage.gwt.client.Gwt_test Computing all possible rebind results for 'package1.subpackage.gwt.client.Gwt_test' Rebinding package1.subpackage.gwt.client.Gwt_test.java Checking rule generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/ [ERROR] Unable to find type 'package1.subpackage.gwt.client.Gwt_test' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a r equired module or a module may not be adding its source path entries properly [ERROR] Build failed Actual class names have been substituted for privacy. Let me know what I'm doing wrong. Also additionally, I'd still like to know how to deal with this if I had to be importing from a jar. I ask, because ideally I do not want to be disturbing the current code structure too much and for curiosity I'd like to know the limitation of GWT with this regard. When I do import from a jar, does the jar being used need to have the source files as well as the class files for the project. So for example if I was trying to use some 3rd party or open source jar, then how would this work because most of the time we'd be downloading and using binaries right. Thanks Suri - Hide quoted text - - Show quoted text - On Sep 29, 8:47 am, walden [EMAIL PROTECTED] wrote: Suri, If the current Java code is in the same project where you are adding GWT on the client, you don't need a jar. Your current Java code does have to be sanitized to meet the 'closed world' requirements of the GWT compiler. Read the documentation on the GWT compiler and JRE emulation classes for details. Your current Java code will have to be findable by the GWT compiler, which means there must be a .gwt.xml file on the classpath when you run the GWT compiler (you'll need to create that), and it needs to indicate where the compile sources are. There are basically two ways to approach this part: 1. keep your sources exactly where they are; place your Pkg1.gwt.xml file in the root folder of the smallest
Re: Newbie question - adding GWT to my existing application
An updated attempt.. I changed my classpath to point to the applications 'src' folder and not the file directly and updated the Gwt_test.gwt.xml file to include the line as inherits name='package.subpackage.subpackage'/ Now when trying to compile I get this error Loading module 'package1.subpackage.gwt.client.Gwt_test' Loading inherited module 'package.subpackage.subpackage' [WARN] Non-canonical source package: ./ Removing units with errors [ERROR] Errors in 'file:/C:/../gwt/client/Gwt_test.java' [ERROR] Line 11: The import Class1 cannot be resolved Compiling module package1.subpackage.gwt.Gwt_test Computing all possible rebind results for 'package1.subpackage.gwt.client.Gwt_test' Rebinding package1.subpackage.gwt.client.Gwt_test Checking rule generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/ [ERROR] Unable to find type 'package1.subpackage.gwt.client.Gwt_test' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a r equired module or a module may not be adding its source path entries properly [ERROR] Build failed Seems like it went a bit ahead except I'm not sure what the problem is now. On Oct 2, 9:21 am, Suri [EMAIL PROTECTED] wrote: Ah, gotcha. Thanks Walden. I had the initial idea of having the '.' But then refrained thinking I could point to the single class. I mis- understood the first reply then. Thanks for the reply to the second question as well. I'll go ahead and see how this works out. Appreciate the patience. Suri On Oct 2, 8:28 am, walden [EMAIL PROTECTED] wrote: Suri, Let's take it one step at a time. The first problem is your source directive. It should look like this: source path=./ The path is the folder at the root of a hierarchy, not a single file. Since your path was defective, the Client1 source was not found, and that caused the import statement to fail the compile. The rest of the diagnostics you can just ignore. As for you later question, GWT does need the Java source (and does not need the .class files). GWT does have a limitation that inherited source needs to be packaged for inheritance. You can't just throw arbitrary jars at a GWT compile the way you can in actual Java. That's because of the limitations inherent in compiling to Javascript. Walden On Oct 1, 4:51 pm, Suri [EMAIL PROTECTED] wrote: Hi Walden, Here's what I did: 1) My current project is set up with the source code as *project - webroot (all JSP, WEB-INF, etc lie here) - src - package - subpackage - Class1 - Class2 - subpackage2 - Class3* So now when adding GWT here's what i did: 1) I ran the applicationCreator command under the project directory, so if the name of my GWT module is going to be gwt_test *project - webroot - src - gwt_test * So in order to import Class1, i created a subpackage.gwt.xml under the subpackage directory * - subpackage - subpackage.gwt.xml - Class1 - Class2* The contents of this were *module source path=Class1/ /module* Now in my GWT module gwt_test - src - package1 - subpackage - gwt - client - Gwt_test.java I added the import statement to the Gwt_test.java as a regular import - import package.subpackage.Class1 I modified the class path of gwt_test-compile.cmd to contain the additional path to the subpackage.gwt.xml i.e *C:/./subpackage.gwt.xml * Upon trying to GWT compile this, i still get the error Removing units with errors [ERROR] Errors in 'file:/C:/eclipse_workspace/project/gwt_test/src/package1/ subpackage.gwt.client.Gwt_test.java' [ERROR] Line 12: The import package.subpackage.Class1 cannot be resolved Compiling module package1.subpackage.gwt.client.Gwt_test Computing all possible rebind results for 'package1.subpackage.gwt.client.Gwt_test' Rebinding package1.subpackage.gwt.client.Gwt_test.java Checking rule generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/ [ERROR] Unable to find type 'package1.subpackage.gwt.client.Gwt_test' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a r equired module or a module may not be adding its source path entries properly [ERROR] Build failed Actual class names have been substituted for privacy. Let me know what I'm doing wrong. Also
Re: Newbie question - adding GWT to my existing application
Hi Walden Did what you said and also modified the xxx-compile.cmd file to add the class path for the gwt.xml file so the new class path is @java -Xmx256M -cp %~dp0\src;%~dp0\bin;C:/app/src/package/subpackage/ subpackage.gwt.xml;C:/.../gwt-user.jar;C:/.../gwt-dev-windows.jar com.google.gwt.dev.GWTCompiler -out %~dp0\www %* package1.subpackage.gwt.client.Gwt_test And the Gwt_test.gwt.xml has been modified to include the line inherits name='src.package.subpackage.subpackage.'/ Upon running this I get the following error Loading module 'package1.subpackage.gwt.client.Gwt_test' Loading inherited module 'src.package.subpackage.subpackage.gwt.xml' [ERROR] Unable to find 'src/package/subpackage/ subpackage.gwt.xml' on your classpath; could be a typo , or maybe you forgot to include a classpath entry for source? [ERROR] Line 4: Unexpected exception while processing element 'inherits' com.google.gwt.core.ext.UnableToCompleteException: (see previous log entries) Is the classpath being set wrongly? On Oct 2, 9:21 am, Suri [EMAIL PROTECTED] wrote: Ah, gotcha. Thanks Walden. I had the initial idea of having the '.' But then refrained thinking I could point to the single class. I mis- understood the first reply then. Thanks for the reply to the second question as well. I'll go ahead and see how this works out. Appreciate the patience. Suri On Oct 2, 8:28 am, walden [EMAIL PROTECTED] wrote: Suri, Let's take it one step at a time. The first problem is your source directive. It should look like this: source path=./ The path is the folder at the root of a hierarchy, not a single file. Since your path was defective, the Client1 source was not found, and that caused the import statement to fail the compile. The rest of the diagnostics you can just ignore. As for you later question, GWT does need the Java source (and does not need the .class files). GWT does have a limitation that inherited source needs to be packaged for inheritance. You can't just throw arbitrary jars at a GWT compile the way you can in actual Java. That's because of the limitations inherent in compiling to Javascript. Walden On Oct 1, 4:51 pm, Suri [EMAIL PROTECTED] wrote: Hi Walden, Here's what I did: 1) My current project is set up with the source code as *project - webroot (all JSP, WEB-INF, etc lie here) - src - package - subpackage - Class1 - Class2 - subpackage2 - Class3* So now when adding GWT here's what i did: 1) I ran the applicationCreator command under the project directory, so if the name of my GWT module is going to be gwt_test *project - webroot - src - gwt_test * So in order to import Class1, i created a subpackage.gwt.xml under the subpackage directory * - subpackage - subpackage.gwt.xml - Class1 - Class2* The contents of this were *module source path=Class1/ /module* Now in my GWT module gwt_test - src - package1 - subpackage - gwt - client - Gwt_test.java I added the import statement to the Gwt_test.java as a regular import - import package.subpackage.Class1 I modified the class path of gwt_test-compile.cmd to contain the additional path to the subpackage.gwt.xml i.e *C:/./subpackage.gwt.xml * Upon trying to GWT compile this, i still get the error Removing units with errors [ERROR] Errors in 'file:/C:/eclipse_workspace/project/gwt_test/src/package1/ subpackage.gwt.client.Gwt_test.java' [ERROR] Line 12: The import package.subpackage.Class1 cannot be resolved Compiling module package1.subpackage.gwt.client.Gwt_test Computing all possible rebind results for 'package1.subpackage.gwt.client.Gwt_test' Rebinding package1.subpackage.gwt.client.Gwt_test.java Checking rule generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/ [ERROR] Unable to find type 'package1.subpackage.gwt.client.Gwt_test' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a r equired module or a module may not be adding its source path entries properly [ERROR] Build failed Actual class names have been substituted for privacy. Let me know what I'm doing wrong. Also additionally, I'd still like to know how to deal with this if I had to be importing from a jar. I ask, because ideally I do not want to be disturbing the current code structure too much and for curiosity I'd like to know the limitation of GWT with this regard. When I do
Re: Newbie question - adding GWT to my existing application
Hi Walden, Here's what I did: 1) My current project is set up with the source code as *project - webroot (all JSP, WEB-INF, etc lie here) - src - package - subpackage - Class1 - Class2 - subpackage2 - Class3* So now when adding GWT here's what i did: 1) I ran the applicationCreator command under the project directory, so if the name of my GWT module is going to be gwt_test *project - webroot - src - gwt_test * So in order to import Class1, i created a subpackage.gwt.xml under the subpackage directory * - subpackage - subpackage.gwt.xml - Class1 - Class2* The contents of this were *module source path=Class1/ /module* Now in my GWT module gwt_test - src - package1 - subpackage - gwt - client - Gwt_test.java I added the import statement to the Gwt_test.java as a regular import - import package.subpackage.Class1 I modified the class path of gwt_test-compile.cmd to contain the additional path to the subpackage.gwt.xml i.e *C:/./subpackage.gwt.xml * Upon trying to GWT compile this, i still get the error Removing units with errors [ERROR] Errors in 'file:/C:/eclipse_workspace/project/gwt_test/src/package1/subpackage.gwt.client.Gwt_test.java' [ERROR] Line 12: The import package.subpackage.Class1 cannot be resolved Compiling module package1.subpackage.gwt.client.Gwt_test Computing all possible rebind results for 'package1.subpackage.gwt.client.Gwt_test' Rebinding package1.subpackage.gwt.client.Gwt_test.java Checking rule generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/ [ERROR] Unable to find type 'gov.nsf.oirm.pims.gwt.client.TestUI' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a r equired module or a module may not be adding its source path entries properly [ERROR] Build failed Actual class names have been substituted for privacy. Let me know what I'm doing wrong. Also additionally, I'd still like to know how to deal with this if I had to be importing from a jar. I ask, because ideally I do not want to be disturbing the current code structure too much and for curiosity I'd like to know the limitation of GWT with this regard. When I do import from a jar, does the jar being used need to have the source files as well as the class files for the project. So for example if I was trying to use some 3rd party or open source jar, then how would this work because most of the time we'd be downloading and using binaries right. Thanks Suri On Mon, Sep 29, 2008 at 8:47 AM, walden [EMAIL PROTECTED] wrote: Suri, If the current Java code is in the same project where you are adding GWT on the client, you don't need a jar. Your current Java code does have to be sanitized to meet the 'closed world' requirements of the GWT compiler. Read the documentation on the GWT compiler and JRE emulation classes for details. Your current Java code will have to be findable by the GWT compiler, which means there must be a .gwt.xml file on the classpath when you run the GWT compiler (you'll need to create that), and it needs to indicate where the compile sources are. There are basically two ways to approach this part: 1. keep your sources exactly where they are; place your Pkg1.gwt.xml file in the root folder of the smallest containing sub-tree for all the classes you need to include, and use the source path=x/ tag as many times as necessary to indicate (and hopefully isolate) just the classes you want compiled by GWT. 2. do a little folder reorganization so that the classes you will share between server and client side are isolated cleanly; have a 'client' folder at the root of that sub-tree, and place your Pkg1.gwt.xml file as a direct sibling to the client folder. Then you don't need source tags. Try that, report any errors you get, and we'll sort it out from there. Walden On Sep 27, 3:30 pm, Suri [EMAIL PROTECTED] wrote: Hi All, I'm a GWT newbie and I've just come fresh after reading up the basics from the Google GWT tutorial. Here's my situation: I have an existing Java based web application (Struts based). Now I'm trying to add a new module to it and figure I'd try to incorporate GWT - mostly because I expect the new module to be a few very dynamic pages communicating with the server often. Now my first question is, how do I reference my current Java code in this GWT program. i.e if i have the following com.pkg1.Class1; com.pkg1.pkg2.Class2; in my existing Java code, and in my GWT java class I import these 2 classes for implementation, what are the exact steps I need to follow so that these are correctly added to the GWT
Re: Newbie question - adding GWT to my existing application
Hi Walden, Here's what I did: 1) My current project is set up with the source code as *project - webroot (all JSP, WEB-INF, etc lie here) - src - package - subpackage - Class1 - Class2 - subpackage2 - Class3* So now when adding GWT here's what i did: 1) I ran the applicationCreator command under the project directory, so if the name of my GWT module is going to be gwt_test *project - webroot - src - gwt_test * So in order to import Class1, i created a subpackage.gwt.xml under the subpackage directory * - subpackage - subpackage.gwt.xml - Class1 - Class2* The contents of this were *module source path=Class1/ /module* Now in my GWT module gwt_test - src - package1 - subpackage - gwt - client - Gwt_test.java I added the import statement to the Gwt_test.java as a regular import - import package.subpackage.Class1 I modified the class path of gwt_test-compile.cmd to contain the additional path to the subpackage.gwt.xml i.e *C:/./subpackage.gwt.xml * Upon trying to GWT compile this, i still get the error Removing units with errors [ERROR] Errors in 'file:/C:/eclipse_workspace/project/gwt_test/src/package1/ subpackage.gwt.client.Gwt_test.java' [ERROR] Line 12: The import package.subpackage.Class1 cannot be resolved Compiling module package1.subpackage.gwt.client.Gwt_test Computing all possible rebind results for 'package1.subpackage.gwt.client.Gwt_test' Rebinding package1.subpackage.gwt.client.Gwt_test.java Checking rule generate-with class='com.google.gwt.user.rebind.ui.ImageBundleGenerator'/ [ERROR] Unable to find type 'package1.subpackage.gwt.client.Gwt_test' [ERROR] Hint: Previous compiler errors may have made this type unavailable [ERROR] Hint: Check the inheritance chain from your module; it may not be inheriting a r equired module or a module may not be adding its source path entries properly [ERROR] Build failed Actual class names have been substituted for privacy. Let me know what I'm doing wrong. Also additionally, I'd still like to know how to deal with this if I had to be importing from a jar. I ask, because ideally I do not want to be disturbing the current code structure too much and for curiosity I'd like to know the limitation of GWT with this regard. When I do import from a jar, does the jar being used need to have the source files as well as the class files for the project. So for example if I was trying to use some 3rd party or open source jar, then how would this work because most of the time we'd be downloading and using binaries right. Thanks Suri - Hide quoted text - - Show quoted text - On Sep 29, 8:47 am, walden [EMAIL PROTECTED] wrote: Suri, If the current Java code is in the same project where you are adding GWT on the client, you don't need a jar. Your current Java code does have to be sanitized to meet the 'closed world' requirements of the GWT compiler. Read the documentation on the GWT compiler and JRE emulation classes for details. Your current Java code will have to be findable by the GWT compiler, which means there must be a .gwt.xml file on the classpath when you run the GWT compiler (you'll need to create that), and it needs to indicate where the compile sources are. There are basically two ways to approach this part: 1. keep your sources exactly where they are; place your Pkg1.gwt.xml file in the root folder of the smallest containing sub-tree for all the classes you need to include, and use the source path=x/ tag as many times as necessary to indicate (and hopefully isolate) just the classes you want compiled by GWT. 2. do a little folder reorganization so that the classes you will share between server and client side are isolated cleanly; have a 'client' folder at the root of that sub-tree, and place your Pkg1.gwt.xml file as a direct sibling to the client folder. Then you don't need source tags. Try that, report any errors you get, and we'll sort it out from there. Walden On Sep 27, 3:30 pm, Suri [EMAIL PROTECTED] wrote: Hi All, I'm a GWT newbie and I've just come fresh after reading up the basics from the Google GWT tutorial. Here's my situation: I have an existing Java based web application (Struts based). Now I'm trying to add a new module to it and figure I'd try to incorporate GWT - mostly because I expect the new module to be a few very dynamic pages communicating with the server often. Now my first question is, how do I reference my current Java code in this GWT program. i.e if i have the following com.pkg1.Class1; com.pkg1.pkg2.Class2; in my existing Java code, and in my GWT java class I import these 2 classes for implementation, what are the exact steps I need to follow so that these are
Re: Newbie question - adding GWT to my existing application
Suri, If the current Java code is in the same project where you are adding GWT on the client, you don't need a jar. Your current Java code does have to be sanitized to meet the 'closed world' requirements of the GWT compiler. Read the documentation on the GWT compiler and JRE emulation classes for details. Your current Java code will have to be findable by the GWT compiler, which means there must be a .gwt.xml file on the classpath when you run the GWT compiler (you'll need to create that), and it needs to indicate where the compile sources are. There are basically two ways to approach this part: 1. keep your sources exactly where they are; place your Pkg1.gwt.xml file in the root folder of the smallest containing sub-tree for all the classes you need to include, and use the source path=x/ tag as many times as necessary to indicate (and hopefully isolate) just the classes you want compiled by GWT. 2. do a little folder reorganization so that the classes you will share between server and client side are isolated cleanly; have a 'client' folder at the root of that sub-tree, and place your Pkg1.gwt.xml file as a direct sibling to the client folder. Then you don't need source tags. Try that, report any errors you get, and we'll sort it out from there. Walden On Sep 27, 3:30 pm, Suri [EMAIL PROTECTED] wrote: Hi All, I'm a GWT newbie and I've just come fresh after reading up the basics from the Google GWT tutorial. Here's my situation: I have an existing Java based web application (Struts based). Now I'm trying to add a new module to it and figure I'd try to incorporate GWT - mostly because I expect the new module to be a few very dynamic pages communicating with the server often. Now my first question is, how do I reference my current Java code in this GWT program. i.e if i have the following com.pkg1.Class1; com.pkg1.pkg2.Class2; in my existing Java code, and in my GWT java class I import these 2 classes for implementation, what are the exact steps I need to follow so that these are correctly added to the GWT program and can compile. So far, I haven't seemed to have found a definitive answer to this problem. I saw a few solutions of people saying a jar needs to be included and it needs to have a name.gwt.xml file which gets inherited or something but didn't quite understand what exactly they meant.Some others spoke about source code having to be available for the program to compile in order to convert the javascript. The reading ended up leaving me in a half baked situation which still doesn't help my GWT program compile. I'd really appreciate some help and maybe a few fundamentals on what needs to be happening. Thanks Suri --~--~-~--~~~---~--~~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
