date:20090506


I don't really understand you Stack proposal is the HandlerManager is
already a map to hold different type of listeners and like Thomas
explained above you can influence the source.

The Concurrent access exception I already solved as I had my own
Listener Collection base that all listener collection extended. They
control did and did already the necessary queueing like now
implemented in the HandlerManager. Or just throw an exception when
concurrent access toke place, or the maximum number of listeners
exceeded, or a listener already existed, etc Many little things
that make it very easy to find bugs...
My actual Collection listener implementations where almost empty and
just a subclass with some generic specification... that's it, nothing
BIG like you mentioned.

I understand that the GWT don't want to create a lock-in situation and
hide the creation of the HandlerManager such that can easily change
this behavior in the future... But is this really an advantage and the
correct way ??.. Why not just let this open and still change this
behavior ??... I/We have to make changes anyway.. In my case:
Option 1: produce many code to code around the situation that my own
HandlerManager can't be injected as explained in:
http://code.google.com/p/google-web-toolkit/issues/detail?id=3628q=HandlerManager

Option 2: My own HandlerManager can be  injected which saved my the
bunch of code from option 1.

Either way: if the gwt team decides to change this HandlerManager
behavior, I have to deal with these changes anyway and in option 2,
this takes less time and result in less code modifications. So what's
the difference??
The same kind of coding around I see in other gwt frameworks like
gxt... (they have to change/changed a lot to support 1.6)...

So please, help me understand why the gwt dev team make these things
hidden for gwt developers??...  As I don't see any advantage of hiding
these kind of implementation details.

I am talking about implementation details in general as there are
more of these situations (can be found in this or the contributor
forum, like primitive intercaces...) and it sometimes very frustrating
when you want to implement complex functionality that is so simple in
swt and swing and not in gwt as they still choose to hide these kind
of details :(... (not because it's not possible)

My experience and advice: please just make GWT more open and
extentable.. ... ?

-- Ed



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Re: Trying to use server in another module

2009-05-06 Thread Ivan M


I have been making changes to the XML files and now it doesn't work
again. I think I left them like they were, but now when trying to
debug in a JBoss server I get the following error:

java.net.factoryurlclassloa...@4e33e7
 x.gwtlogin.server.GwtLoginServiceImpl
java.lang.ClassNotFoundException:
x.gwtlogin.server.GwtLoginServiceImpl
...

This actually makes more sense than the previous behaviour,
GwtLoginServiceImpl is not in the project.

On 8 abr, 18:52, Ivan M supertra...@gmail.com wrote:
 Sorry, too fast. I made it work including x.gwtlogin in x.dt as a
 module with no entry point. I didn't need to copy theserverclasses,
 so I have a singleserveras I wanted.

 On 8 abr, 17:28, Ivan M supertra...@gmail.com wrote:



  Hello all,
  I'm facing my first GWT development. I had the idea of developing a
 projectwith a module which I have called x.gwtlogin. Theserverof
  this module can perform queries on a LDAPserver. My idea is to have
  an instance of this module running in the applicationserverand use
  itsserverfrom any other GWT application I develop.
  Let's say one of these applications is x.dt. I have copied all
  x.gwtlogin.client classes that implement theserver'sinterfance in
  this application, so now I have two client packages in theproject:

  x.dt.client
  x.gwtlogin.client

  The problem is that when debugging in hosted mode wherever I try to
  use a x.gwtlogin.client.Class in a x.dt.client.Class, I get the
  following error:

  [ERROR] Line 20: No source code is available for type
  x.gwtlogin.client.Class; did you forget to inherit a required module?

  I suppose the problem is that GWT is not compiling and including the
  classes in x.gwtlogin.client when building x.dt.client. What can I
  do?. Is what I intend to do possible at all?.

  Thank you,
  Ivan- Ocultar texto de la cita -

 - Mostrar texto de la cita -
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RPC callback problem


Hello,

I have a problem with the callback of a RPC call. I have post in
appengine forum because i think it was a problem with the appengine
datastore, but Max Ross suggests me to post here :

http://groups.google.com/group/google-appengine-java/browse_thread/thread/75803bf6ae4eaeb7

In order to summarize :

I have two classes AudioFile and Genre. AudioFile as a field of type
Genre. Both are marked as detachable like Max says me. I add an
AudioFile in the datastore and then i do a RPC call in the client side
in order to retrieve the data :

this.gtunesService.getAudioFiles(new AsyncCallbackListAudioFile()
{
   public void onFailure(Throwable caught) {
SC.say(Gtunes.SERVER_ERROR);
}
public void onSuccess(ListAudioFile result)
{
Gtunes.this.audioFiles = result;
String buf = ;
for (AudioFile af :
Gtunes.this.audioFiles) {
buf += genre =  + af.getGenre
().getName() +  - 
+ af.getName()
+ br /;
}
SC.say(buf);
}
});


The problem is in the server side with the following code :

public ListAudioFile getAudioFiles() {
ListAudioFile audioFiles = null;
PersistenceManager pm = PMF.get().getPersistenceManager();

try {
Query q = pm.newQuery(AudioFile.class);
q.setOrdering(name);
audioFiles = new ArrayListAudioFile((ListAudioFile) 
q.execute
());
pm.detachCopyAll(audioFiles);
} finally {
pm.close();
}

System.out.println(list =  + audioFiles);
for (AudioFile audioFile : audioFiles) {
System.out.println(name =  + audioFile.getName() + 
\n);
}

return audioFiles;
}

audioFiles contains my data. But the return has a problem because i
enter in the onFailure in the client side but without any error.

However, i see that if i change the line :

audioFiles = new ArrayListAudioFile((ListAudioFile) q.execute());

for :

audioFiles = (ListAudioFile) q.execute();

I have get the following error :

5 mai 2009 22:23:23
com.google.appengine.tools.development.ApiProxyLocalImpl log
SEVERE: [1241555003875000] javax.servlet.ServletContext log:
Exception
while dispatching incoming RPC call
com.google.gwt.user.client.rpc.SerializationException: Type
'org.datanucleus.store.appengine.query.StreamingQueryResult' was not
included in the set of types which can be serialized by this
SerializationPolicy or its Class object could not be loaded. For
security purposes, this type will not be serialized.
at
com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSer
ialize
(StandardSerializationPolicy.java:83)
at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
ze
(ServerSerializationStreamWriter.java:591)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.write
Object
(AbstractSerializationStreamWriter.java:129)
at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter
$ValueWriter$8.write(ServerSerializationStreamWriter.java:146)
at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
zeValue
(ServerSerializationStreamWriter.java:530)
at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:
573)
at
com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess
(RPC.java:441)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
(RPC.java:529)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
(RemoteServiceServlet.java:166)
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.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
(TransactionCleanupFilter.java:43)
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

Module works fine in Firefox or Safari but doesn't load in Internet Explorer

2009-05-06 Thread jeremyprioux


Hello,

My module load perfectly in Firefox or Safari but not in Internet
Explorer 7.
Since I don't have any errors in my module in the firefox console
errors, I don't really know what to do...
Have you ever seen this?

Ask if you need some .gwt.xml or any others informations.
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Re: Module works fine in Firefox or Safari but doesn't load in Internet Explorer

2009-05-06 Thread jeremyprioux


update : IE says that there's some errors in my javascript code (a
variable is null). How can I know what's wrong in my java code?

On 6 mai, 09:45, jeremyprioux jeremypri...@gmail.com wrote:
 Hello,

 My module load perfectly in Firefox or Safari but not in Internet
 Explorer 7.
 Since I don't have any errors in my module in the firefox console
 errors, I don't really know what to do...
 Have you ever seen this?

 Ask if you need some .gwt.xml or any others informations.
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Re: HandlerRegistration not always so friendly ??


He Thomas,

Your suggestion about Widget::fireEvent(GwtEvent?) and
Widget::delegateEvent(Widget,GwtEvent?)  doesn't really work I
think, as you that means that the listeners have to be registered on
the specified widget.

It's merely a forward of the event to the listeners of the specified
widget.

But that's not what I want. I just want to adjust the source of the
handler manager of widget X to another widget. If I do it the way you
suggest it means I also have to move the listeners to the other source
widget as they are otherwise not informed... (the handler manager
isn't a static property in Widget).

-- Ed
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Re: RPC callback problem

2009-05-06 Thread Paul Robinson


Your onFailure method ignores the Throwable it's given. Maybe it
contains something useful?

Ouaibou wrote:
 Hello,

 I have a problem with the callback of a RPC call. I have post in
 appengine forum because i think it was a problem with the appengine
 datastore, but Max Ross suggests me to post here :

 http://groups.google.com/group/google-appengine-java/browse_thread/thread/75803bf6ae4eaeb7

 In order to summarize :

 I have two classes AudioFile and Genre. AudioFile as a field of type
 Genre. Both are marked as detachable like Max says me. I add an
 AudioFile in the datastore and then i do a RPC call in the client side
 in order to retrieve the data :

 this.gtunesService.getAudioFiles(new AsyncCallbackListAudioFile()
 {
public void onFailure(Throwable caught) {
 SC.say(Gtunes.SERVER_ERROR);
 }
 public void onSuccess(ListAudioFile result)
 {
 Gtunes.this.audioFiles = result;
 String buf = ;
 for (AudioFile af :
 Gtunes.this.audioFiles) {
 buf += genre =  + af.getGenre
 ().getName() +  - 
 + af.getName()
 + br /;
 }
 SC.say(buf);
 }
 });


 The problem is in the server side with the following code :

 public ListAudioFile getAudioFiles() {
   ListAudioFile audioFiles = null;
   PersistenceManager pm = PMF.get().getPersistenceManager();

   try {
   Query q = pm.newQuery(AudioFile.class);
   q.setOrdering(name);
   audioFiles = new ArrayListAudioFile((ListAudioFile) 
 q.execute
 ());
   pm.detachCopyAll(audioFiles);
   } finally {
   pm.close();
   }

   System.out.println(list =  + audioFiles);
   for (AudioFile audioFile : audioFiles) {
   System.out.println(name =  + audioFile.getName() + 
 \n);
   }

   return audioFiles;
   }

 audioFiles contains my data. But the return has a problem because i
 enter in the onFailure in the client side but without any error.

 However, i see that if i change the line :

 audioFiles = new ArrayListAudioFile((ListAudioFile) q.execute());

 for :

 audioFiles = (ListAudioFile) q.execute();

 I have get the following error :

 5 mai 2009 22:23:23
 com.google.appengine.tools.development.ApiProxyLocalImpl log
 SEVERE: [1241555003875000] javax.servlet.ServletContext log:
 Exception
 while dispatching incoming RPC call
 com.google.gwt.user.client.rpc.SerializationException: Type
 'org.datanucleus.store.appengine.query.StreamingQueryResult' was not
 included in the set of types which can be serialized by this
 SerializationPolicy or its Class object could not be loaded. For
 security purposes, this type will not be serialized.
 at
 com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSer
 ialize
 (StandardSerializationPolicy.java:83)
 at
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
 ze
 (ServerSerializationStreamWriter.java:591)
 at
 com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.write
 Object
 (AbstractSerializationStreamWriter.java:129)
 at
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter
 $ValueWriter$8.write(ServerSerializationStreamWriter.java:146)
 at
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
 zeValue
 (ServerSerializationStreamWriter.java:530)
 at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:
 573)
 at
 com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess
 (RPC.java:441)
 at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
 (RPC.java:529)
 at
 com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
 (RemoteServiceServlet.java:166)
 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.apphosting.utils.servlet.TransactionCleanupFilter.doFilter
 (TransactionCleanupFilter.java:43)
 at org.mortbay.jetty.servlet.ServletHandler
 $CachedChain.doFilter
 (ServletHandler.java:1084)
 at org.mortbay.jetty.servlet.ServletHandler.handle
 (ServletHandler.java:360)
 at

GWT1.6 and annotations

2009-05-06 Thread Matías Costa


Hello people.

I am developing with 1.5/eclipse/cypal-plugin, with some custom
annotations and all goes fine. But fails with gwt1.6 and the google
plugin.

Simple test case. In eclipse create a new gwt project, let's call it just 'g'

Create annotation:

package g.client;

import java.lang.annotation.*;

@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.FIELD)
public @interface Foo {
    public String bar() default bar;
}

Create class using annotation:

package g.client;

import java.io.Serializable;

public class Thing implements Serializable {

    @Foo(bar = ok)
    public double id;

    public Thing() {
    id = 25;
    }

    public double getId() {
    return id;
    }
}

GWT compile project output:

Compiling module g.G
   Refreshing module from source
  Refreshing TypeOracle
 Processing types in compilation unit:
file:/home/mati/eclipse/g/src/g/client/Thing.java
Found type 'Thing'
   Resolving annotation '@Foo(bar = ok)'
  [ERROR]
java.lang.ClassNotFoundException: g.client.Foo
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268)
at java.lang.ClassLoader.loadClass(ClassLoader.java:251)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:319)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:242)
at 
com.google.gwt.dev.javac.TypeOracleMediator.getClassLiteral(TypeOracleMediator.java:763)
at 
com.google.gwt.dev.javac.TypeOracleMediator.resolveAnnotation(TypeOracleMediator.java:831)
at 
com.google.gwt.dev.javac.TypeOracleMediator.resolveAnnotations(TypeOracleMediator.java:857)
at 
com.google.gwt.dev.javac.TypeOracleMediator.resolveField(TypeOracleMediator.java:899)
at 
com.google.gwt.dev.javac.TypeOracleMediator.resolveFields(TypeOracleMediator.java:943)
at 
com.google.gwt.dev.javac.TypeOracleMediator.resolveTypeDeclaration(TypeOracleMediator.java:1428)
at 
com.google.gwt.dev.javac.TypeOracleMediator.addNewUnits(TypeOracleMediator.java:389)
at 
com.google.gwt.dev.javac.TypeOracleMediator.refresh(TypeOracleMediator.java:417)
at 
com.google.gwt.dev.javac.CompilationState.refresh(CompilationState.java:179)
at 
com.google.gwt.dev.javac.CompilationState.init(CompilationState.java:93)
at 
com.google.gwt.dev.cfg.ModuleDef.getCompilationState(ModuleDef.java:264)
at com.google.gwt.dev.Precompile.precompile(Precompile.java:283)
at com.google.gwt.dev.Compiler.run(Compiler.java:170)
at com.google.gwt.dev.Compiler$1.run(Compiler.java:124)
at com.google.gwt.dev.CompileTaskRunner.doRun(CompileTaskRunner.java:84)
at 
com.google.gwt.dev.CompileTaskRunner.runWithAppropriateLogger(CompileTaskRunner.java:78)
at com.google.gwt.dev.Compiler.main(Compiler.java:131)
   Compiling 5 permutations
  Permutation compile succeeded
   Linking into war
  Link succeeded
   Compilation succeeded -- 19,961s

Should I just ignore the error?

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Re: Simple RPC Issue


http://groups.google.com/group/Google-Web-Toolkit/msg/1e8c310b4002e72a

On May 6, 6:47 am, Omer Shakil omer.sha...@gmail.com wrote:
 @PersistenceCapable(identityType = IdentityType.APPLICATION)
 public class Group implements Serializable {
   @PrimaryKey
   @Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
   @Extension(vendorName=datanucleus, key=gae.encoded-pk, value=true)
   private String encodedKey;

   @Persistent
   private String name;

   @Persistent
   private ListMembership members;

 }

 @RemoteServiceRelativePath(service)
 public interface Service extends RemoteService {
   Group createGroup(final String name);

 }

 I get this exception when I call createGroup, what am I missing?

 com.google.appengine.tools.development.ApiProxyLocalImpl log
 SEVERE: [1241583692799000] javax.servlet.ServletContext log: Exception while
 dispatching incoming RPC call
 com.google.gwt.user.client.rpc.SerializationException: Type
 'org.datanucleus.sco.backed.ArrayList' was not included in the set of types
 which can be serialized by this SerializationPolicy or its Class object
 could not be loaded. For security purposes, this type will not be
 serialized.
 at
 com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSerialize(StandardSerializationPolicy.java:83)
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Re: Module works fine in Firefox or Safari but doesn't load in Internet Explorer


What OS are you using ? Is the hosted mode working fine ? From the
scarce information you gave, it looks like a null pointer exception in
your code but all I can do is guess with that much information.

 How can I know what's wrong in my java code?

Normally that's what HostedMode debugging is for. But if you really
can't identify the problem in hosted mode, the you could try compiling
in PRETTY or DETAILED style and then IE will at least tell you a more
meaningful name for the null variable.

Hope that helps;

Salvador

On May 6, 10:49 am, jeremyprioux jeremypri...@gmail.com wrote:
 update : IE says that there's some errors in my javascript code (a
 How can I know what's wrong in my java code?

 On 6 mai, 09:45, jeremyprioux jeremypri...@gmail.com wrote:

  Hello,

  My module load perfectly in Firefox or Safari but not in Internet
  Explorer 7.
  Since I don't have any errors in my module in the firefox console
  errors, I don't really know what to do...
  Have you ever seen this?

  Ask if you need some .gwt.xml or any others informations.


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Clearing all PopupPanels with one command (Not root panel)

2009-05-06 Thread matttai


Hi guys,

I have an interesting issue.

I am trying to do a command similar to clear screen. Where from the
main entry point I pretty much create every widget in the app on
several levels into a single panel main.

When it comes to clearing the screen it is simple to call main.clear()

However, PopupPanels seem to be owned by the RootPanel and remain
onscreen.

Calling RootPanel.get().clear() isnt desirable as that rids the screen
of the main element.

Unless there is a way to reinstantiate the main element from an inner
element by calling a method in the entrypoint but i dont think that
seems to be possible.

Is there any solutions to clear all PopupPanels short of passing
references of these panels up and and down N levels deep to the main
panel to manually call hide() on? As this way seems really
inefficient.

Cheers,

Matt
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Re: RPC callback problem


Oops it right, if i print the caught says :

This application is out of date, please click the refresh button on
your browser.
com.google.gwt.user.client.rpc.impl.RequestCallbackAdapter.onResponseReceived
(RequestCallbackAdapter.java:204)
com.google.gwt.http.client.Request.fireOnResponseReceivedImpl
(Request.java:264)
com.google.gwt.http.client.Request.fireOnResponseReceivedAndCatch
(Request.java:236)
com.google.gwt.http.client.Request.fireOnResponseReceived(Request.java:
227)
sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
sun.reflect.NativeMethodAccessorImpl.invoke
(NativeMethodAccessorImpl.java:39)
sun.reflect.DelegatingMethodAccessorImpl.invoke
(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:585)
com.google.gwt.dev.shell.MethodAdaptor.invoke(MethodAdaptor.java:103)
com.google.gwt.dev.shell.mac.MethodDispatch.invoke(MethodDispatch.java:
71)
org.eclipse.swt.internal.carbon.OS.ReceiveNextEvent(Native Method)
org.eclipse.swt.widgets.Display.sleep(Display.java:3801)
com.google.gwt.dev.SwtHostedModeBase.sleep(SwtHostedModeBase.java:241)
com.google.gwt.dev.SwtHostedModeBase.processEvents
(SwtHostedModeBase.java:236)
com.google.gwt.dev.HostedModeBase.pumpEventLoop(HostedModeBase.java:
558)
com.google.gwt.dev.HostedModeBase.run(HostedModeBase.java:405)
com.google.gwt.dev.HostedMode.main(HostedMode.java:232)

It's strange. What can i do ?

Thanks for your help.

On 6 mai, 11:01, Paul Robinson ukcue...@gmail.com wrote:
 Your onFailure method ignores the Throwable it's given. Maybe it
 contains something useful?



 Ouaibou wrote:
  Hello,

  I have a problem with the callback of a RPC call. I have post in
  appengine forum because i think it was a problem with the appengine
  datastore, but Max Ross suggests me to post here :

 http://groups.google.com/group/google-appengine-java/browse_thread/th...

  In order to summarize :

  I have two classes AudioFile and Genre. AudioFile as a field of type
  Genre. Both are marked as detachable like Max says me. I add an
  AudioFile in the datastore and then i do a RPC call in the client side
  in order to retrieve the data :

  this.gtunesService.getAudioFiles(new AsyncCallbackListAudioFile()
  {
                         public void onFailure(Throwable caught) {
                                  SC.say(Gtunes.SERVER_ERROR);
                          }
                          public void onSuccess(ListAudioFile result)
  {
                                  Gtunes.this.audioFiles = result;
                                  String buf = ;
                                  for (AudioFile af :
  Gtunes.this.audioFiles) {
                                          buf += genre =  + af.getGenre
  ().getName() +  - 
                                                          + af.getName()
  + br /;
                                  }
                                  SC.say(buf);
                          }
                  });

  The problem is in the server side with the following code :

  public ListAudioFile getAudioFiles() {
             ListAudioFile audioFiles = null;
             PersistenceManager pm = PMF.get().getPersistenceManager();

             try {
                     Query q = pm.newQuery(AudioFile.class);
                     q.setOrdering(name);
                     audioFiles = new ArrayListAudioFile((ListAudioFile) 
  q.execute
  ());
                     pm.detachCopyAll(audioFiles);
             } finally {
                     pm.close();
             }

             System.out.println(list =  + audioFiles);
             for (AudioFile audioFile : audioFiles) {
                     System.out.println(name =  + audioFile.getName() + 
  \n);
             }

             return audioFiles;
     }

  audioFiles contains my data. But the return has a problem because i
  enter in the onFailure in the client side but without any error.

  However, i see that if i change the line :

  audioFiles = new ArrayListAudioFile((ListAudioFile) q.execute());

  for :

  audioFiles = (ListAudioFile) q.execute();

  I have get the following error :

  5 mai 2009 22:23:23
  com.google.appengine.tools.development.ApiProxyLocalImpl log
  SEVERE: [1241555003875000] javax.servlet.ServletContext log:
  Exception
  while dispatching incoming RPC call
  com.google.gwt.user.client.rpc.SerializationException: Type
  'org.datanucleus.store.appengine.query.StreamingQueryResult' was not
  included in the set of types which can be serialized by this
  SerializationPolicy or its Class object could not be loaded. For
  security purposes, this type will not be serialized.
          at
  com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSer
  ialize
  (StandardSerializationPolicy.java:83)
          at
  com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
  ze
  (ServerSerializationStreamWriter.java:591)
          at
  com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.write

Re: javax.servlet.ServletContext log: Exception while dispatching incoming RPC call

2009-05-06 Thread jimmy


I met same exception before, please check this link below, hope it
help.
http://groups.google.com/group/google-appengine-java/browse_thread/thread/703b52768b10c049

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Re: Module works fine in Firefox or Safari but doesn't load in Internet Explorer

2009-05-06 Thread jeremyprioux


Everything was fine with the hosted mode.

Using pretty and detailed compilation helps me to see that was
something wrong with history handling in IE. Then I realized that I
had forgotten the html code :
iframe src=javascript:'' id=__gwt_historyFrame tabIndex='-1'
style=position:absolute;width:0;height:0;border:0/iframe
Quite strange that it worked in FF and Safari, no?

Thanks for your help !

On 6 mai, 10:23, Salvador Diaz diaz.salva...@gmail.com wrote:
 What OS are you using ? Is the hosted mode working fine ? From the
 scarce information you gave, it looks like a null pointer exception in
 your code but all I can do is guess with that much information.

  How can I know what's wrong in my java code?

 Normally that's what HostedMode debugging is for. But if you really
 can't identify the problem in hosted mode, the you could try compiling
 in PRETTY or DETAILED style and then IE will at least tell you a more
 meaningful name for the null variable.

 Hope that helps;

 Salvador

 On May 6, 10:49 am, jeremyprioux jeremypri...@gmail.com wrote:

  update : IE says that there's some errors in my javascript code (a
  How can I know what's wrong in my java code?

  On 6 mai, 09:45, jeremyprioux jeremypri...@gmail.com wrote:

   Hello,

   My module load perfectly in Firefox or Safari but not in Internet
   Explorer 7.
   Since I don't have any errors in my module in the firefox console
   errors, I don't really know what to do...
   Have you ever seen this?

   Ask if you need some .gwt.xml or any others informations.
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GWT1.6.4: anybody facing problems with DecoratedStackPanel.setHeight() ?

2009-05-06 Thread TomJanssens


Hello,

I am using a DecoratedStackPanel in my application. If I call
DecoratedStackPanel.setHeight() when the window is resized, the
DecoratedStackPanel becomes too big. The values I am passing are
correct. It seems like it is setting the size of the widget that is
added to the DecoratedStackPanel, and not the size of the
DecoratedStackPanel itself.

Anybody facing the same problem?

Cheers
Tom


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Re: RPC callback problem


Okay, thanks Salvador, I will see that :o)

On 6 mai, 11:17, Salvador Diaz diaz.salva...@gmail.com wrote:
 Everybody seems to be missing this since app engine for java was
 released. Try reading the GWT Developer Guide guys, you'll find all
 kinds of interesting and useful stuff.

 Anyway, the problem is that you can't use any
 org.datanucleus.store.appengine.* classes in your client-side code.
 You have to use the DTO pattern.

 Here's one of the discussions related to this topic from a couple of
 days 
 ago:http://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa...

 You could also try searching the forum, that'd keep us from answering
 the same question for the n-th time.

 Hope that helps;

 Salvador

 PS: The relevant part of the developer documentation discussing this
 is 
 here:http://code.google.com/webtoolkit/doc/1.6/DevGuideCodingBasics.html#D...

 On May 6, 11:01 am, Paul Robinson ukcue...@gmail.com wrote:



  Your onFailure method ignores the Throwable it's given. Maybe it
  contains something useful?

  Ouaibou wrote:
   Hello,

   I have a problem with the callback of a RPC call. I have post in
   appengine forum because i think it was a problem with the appengine
   datastore, but Max Ross suggests me to post here :

  http://groups.google.com/group/google-appengine-java/browse_thread/th...

   In order to summarize :

   I have two classes AudioFile and Genre. AudioFile as a field of type
   Genre. Both are marked as detachable like Max says me. I add an
   AudioFile in the datastore and then i do a RPC call in the client side
   in order to retrieve the data :

   this.gtunesService.getAudioFiles(new AsyncCallbackListAudioFile()
   {
                          public void onFailure(Throwable caught) {
                                   SC.say(Gtunes.SERVER_ERROR);
                           }
                           public void onSuccess(ListAudioFile result)
   {
                                   Gtunes.this.audioFiles = result;
                                   String buf = ;
                                   for (AudioFile af :
   Gtunes.this.audioFiles) {
                                           buf += genre =  + af.getGenre
   ().getName() +  - 
                                                           + af.getName()
   + br /;
                                   }
                                   SC.say(buf);
                           }
                   });

   The problem is in the server side with the following code :

   public ListAudioFile getAudioFiles() {
              ListAudioFile audioFiles = null;
              PersistenceManager pm = PMF.get().getPersistenceManager();

              try {
                      Query q = pm.newQuery(AudioFile.class);
                      q.setOrdering(name);
                      audioFiles = new 
   ArrayListAudioFile((ListAudioFile) q.execute
   ());
                      pm.detachCopyAll(audioFiles);
              } finally {
                      pm.close();
              }

              System.out.println(list =  + audioFiles);
              for (AudioFile audioFile : audioFiles) {
                      System.out.println(name =  + audioFile.getName() + 
   \n);
              }

              return audioFiles;
      }

   audioFiles contains my data. But the return has a problem because i
   enter in the onFailure in the client side but without any error.

   However, i see that if i change the line :

   audioFiles = new ArrayListAudioFile((ListAudioFile) q.execute());

   for :

   audioFiles = (ListAudioFile) q.execute();

   I have get the following error :

   5 mai 2009 22:23:23
   com.google.appengine.tools.development.ApiProxyLocalImpl log
   SEVERE: [1241555003875000] javax.servlet.ServletContext log:
   Exception
   while dispatching incoming RPC call
   com.google.gwt.user.client.rpc.SerializationException: Type
   'org.datanucleus.store.appengine.query.StreamingQueryResult' was not
   included in the set of types which can be serialized by this
   SerializationPolicy or its Class object could not be loaded. For
   security purposes, this type will not be serialized.
           at
   com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSer
   ialize
   (StandardSerializationPolicy.java:83)
           at
   com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
   ze
   (ServerSerializationStreamWriter.java:591)
           at
   com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.write
   Object
   (AbstractSerializationStreamWriter.java:129)
           at
   com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter
   $ValueWriter$8.write(ServerSerializationStreamWriter.java:146)
           at
   com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
   zeValue
   (ServerSerializationStreamWriter.java:530)
           at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:
   573)
           at

Re: GWT1.6.4: anybody facing problems with DecoratedStackPanel.setHeight() ?

2009-05-06 Thread alex.d


This was already discussed in this group. It's better to set the size
of the widgets inside the decoratedPanel.

On 6 Mai, 12:40, TomJanssens jansse...@gmail.com wrote:
 Hello,

 I am using a DecoratedStackPanel in my application. If I call
 DecoratedStackPanel.setHeight() when the window is resized, the
 DecoratedStackPanel becomes too big. The values I am passing are
 correct. It seems like it is setting the size of the widget that is
 added to the DecoratedStackPanel, and not the size of the
 DecoratedStackPanel itself.

 Anybody facing the same problem?

 Cheers
 Tom
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annotated timeline and menu

2009-05-06 Thread ytbryan


hi all,

anybody has a workaround for the google visualization annotated
timeline being always on top of the drop down menu?


when i have an annotated timeline, i cannot see  my drop down menu.
drop down menu works fine with other visualization.

thanks

/bryan


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InitialContext not supported!

2009-05-06 Thread zb


Recently, I have change my gwt working environment from Cypal to
Google Plugin. Everything seems fine except compile error:
'javax.naming.InitialContext is not supported by Google App Engine's
Java runtime environment' in code line 'InitialContext ctx = new
InitialContext();'.
I use this to connect to EJB 3.0 middle layer.
Does anyone have a solution?

Best regards,
Žarko Bodroški.


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Re: GWT1.6.4: anybody facing problems with DecoratedStackPanel.setHeight() ?

2009-05-06 Thread TomJanssens


Hello,

Thanks for the quick answer.

I can understand that for a DecoratorPanel, but I was talking about
the DecoratedStackPanel. And the normal StackPanel has the same
issues.

It looks like I have to do workaround, and calculate the size of
widgets in the StackPanel.

Cheers
Tom

On May 6, 1:13 pm, alex.d alex.dukhov...@googlemail.com wrote:
 This was already discussed in this group. It's better to set thesize
 of the widgets inside thedecoratedPanel.

 On 6 Mai, 12:40, TomJanssens jansse...@gmail.com wrote:

  Hello,

  I am using a DecoratedStackPanel in my application. If I call
  DecoratedStackPanel.setHeight() when the window is resized, the
  DecoratedStackPanel becomes too big. The values I am passing are
  correct. It seems like it is setting thesizeof the widget that is
  added to the DecoratedStackPanel, and not thesizeof the
  DecoratedStackPanel itself.

  Anybody facing the same problem?

  Cheers
  Tom
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Re: Module works fine in Firefox or Safari but doesn't load in Internet Explorer




On 6 mai, 12:23, jeremyprioux jeremypri...@gmail.com wrote:
 Everything was fine with the hosted mode.

 Using pretty and detailed compilation helps me to see that was
 something wrong with history handling in IE. Then I realized that I
 had forgotten the html code :
     iframe src=javascript:'' id=__gwt_historyFrame tabIndex='-1'
 style=position:absolute;width:0;height:0;border:0/iframe
 Quite strange that it worked in FF and Safari, no?

No actually, because only IE6 and IE7 need this IFrame as a workaround
to push an entry in the browsing history; in other browsers
(including IE8), setting the location.hash does this without the need
for navigating this hidden iframe.
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Re: Calling a different HTML page

2009-05-06 Thread harjit.singh


Thanks for the answer. When I have multiple modules and try to run the
application. The GWT webserver asks me to choose a module to run. Is
there any way to specify a default module to run when you have more
than one module ?

Thanks

- Harjit

On May 5, 8:20 pm, Vishesh visheshs...@gmail.com wrote:
 Try the code between the tags:
 code
 String lnk = GWT.getModuleBaseURL() + newPage.html?Parameter1= +
 parameter1 Parameter2= + parameter2;
 Window.open(lnk,New Window,);
 /code
 It will open a new window which can be a different module with its onw
 onModuleLoad() within the same project.
 Hope this helps..
 Vish..

 On Tue, May 5, 2009 at 6:26 PM, harjit.singh 



 harjit.si...@content-studios.com wrote:

  Sumit,

  Thanks for the response. I did the way you described it using JSP.

  I have one more question on the same lines. how can I call another
  module from a link ?

  Thanks

  - Harjit

  On May 5, 2:53 pm, Sumit Chandel sumitchan...@google.com wrote:
   Hi Harjit,

   Assuming that you really need these windows to be actual native browser
   windows (and not simply popup panels, in which case you could use the
   PopupPanel class), and further assuming that the HTML in the new windows
   will need to be populated with some data from the server-side, here is a
   proposed solution.

   Let's say you want to have some link-styled text that can be clicked to
   create the new window. You could do this by creating an HTML snippet and
   adding a click handler to it. You would also need to style the HTML
  snippet
   to make it look like a link.

   In the click handler, you could make a callback to your server-side that
   could read in whatever data is passed in the call and generate an HTML
  page
   that will be served in the new window. Once the RPC completes, you can
   create a new window sourced to the generated HTML page in the onSuccess()
   method.

   Alternatively, you could pre-generated these pages in timed background
  RPCs
   and simply create an anchor tag sourced to the generated pages once
  they're
   ready.

   Hope that helps,
   -Sumit Chandel

   On Fri, May 1, 2009 at 2:15 PM, harjit.singh 

   harjit.si...@content-studios.com wrote:

Hi there,

I have an GWT application. Right now what I'm doing is that I'm
displaying the data in a single grid with all the buttons in a row .
Each button has a listener. when i click one of the buttons, it hides
the other widgets and displays the required widgets on the same page
and displays some data on the same page. I have added a back button to
the page and when the back button is clicked the app hides the panels
and displays the other panels.

What I need to do is following

1) instead of having a button I need a link and when that link is
clicked it would open the a URL in a seperate window and then later on
display some data in that window.

What approach should I take ?

How can I have multiple htmls and call them from the GWT module or
have multiple entry points to the application and call it ?

Thanks

-

 --
 Vishesh Sahu
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Re: HandlerRegistration not always so friendly ??




On 6 mai, 10:57, Ed post2edb...@hotmail.com wrote:
 He Thomas,

 Your suggestion about Widget::fireEvent(GwtEvent?) and
 Widget::delegateEvent(Widget,GwtEvent?)  doesn't really work I
 think, as you that means that the listeners have to be registered on
 the specified widget.

 It's merely a forward of the event to the listeners of the specified
 widget.

 But that's not what I want. I just want to adjust the source of the
 handler manager of widget X to another widget. If I do it the way you
 suggest it means I also have to move the listeners to the other source
 widget as they are otherwise not informed... (the handler manager
 isn't a static property in Widget).

You're breaking the principle of least surprise: if I register a
handler on a widget, I expect the source of the event to be that
specific widget, so that I can use the same handler on more than one
widget and switch/case (well, actually if/else) depending on the
event's source, as explained in
http://code.google.com/webtoolkit/doc/1.6/FAQ_UI.html#As_the_application_grows,_event_handlers_seem_to_fire_more_slowl

As for your maximum number of handler use case, you can ask how many
handlers have been registered for a given event type
(Widget::getHandlerCount), so you can override add*Handler and throw
if this number is too high.

...eventually, you can still have access to a private field using
JSNI, so you can inject your own HandlerManager this way if you really
want to...
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Re: MultiWordSuggest Help




On 6 mai, 08:15, Yogi yogesh@gmail.com wrote:
 I have a suggestbox with MultiWordSuggestOracle. I need to type in
 name which is firstName +  +lastname and when user selects a item, i
 want the replaced text to be the id of the user. I am not sure how to
 implement this.

You can't; you have to use your own SuggestOracle (which can delegate
to an internal MultiWordSuggestOracle if you want; you could then wrap
each MultiWordSuggestion in your own Suggestion class which would map
back the firstName lastName --from the
MultiWordSuggestion::getReplacementText-- to the user id in your
getReplacementText method)
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Re: HandlerRegistration not always so friendly ??


 You're breaking the principle of least surprise: if I register a
 handler on a widget, I expect the source of the event to be that

Exactly my point why I want to change the source.
Your suggestion works with single widget components, but not really
wel for composite widgets.

Example: suppose you have a composite widget that contains a chexkbox
and label.
The composite contains a addClickHandler method to add a click
handler.
This method will simple forward the call to the underlying checkbox
and label.
The listener will expect the source to be the composite widget like
you mentioned above, which isn't the case in the above (in the past
you could change the sender widget in the listener).

Note: ofcourse you can create a single listener in the composite that
is added to the checkbox and label that will forward his event to the
contained listeners. But don't forget this is just an example and
there are more where this is desirable..

-- Ed
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Re: How to suppress the token change for Hyperlink




On 5 mai, 21:12, George Georgovassilis g.georgovassi...@gmail.com
wrote:
 Hi Kevin,

 had the same problem. Similar to Isaac's solution I used labels to do
 the trick, but that left a shallow aftertaste since you have to put a
 lot of work into them (make them focuseable etc for keyboard
 navigation) and they still don't feel like real links. Left aside the
 cool stuff you can do by right clicking on links.

OK, so just use an Anchor instead of Hyperlink if you want a link
without history management.


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Re: How to change the base URL for the app in Hosted Mode??

2009-05-06 Thread Rajeev Dayal

If you'd like, you can enter a full URL in the URL field for the launch
configuration. That is, you can enter http://yourhostname.com:8080, and the
hosted browser will start up and attempt to navigate to that URL. In this
example, I'm assuming that you're launch configuration specifies that the
built-in server will be listening on port 8080.

On Tue, May 5, 2009 at 11:38 AM, k9mab mab.m...@gmail.com wrote:


 Is it possible to get this to use the actual hostname instead of
 localhost?

 I'm trying to tie this into CAS auth filter which redirects to a login
 page on the CAS server, which in turn redirects back to my page after
 auth is successful. I get through the CAS auth ok but the redirect
 back to my app doesn't work. I'm guessing that this is because the CAS
 client on my side is passing a localhost URL to the CAS server and the
 CAS server post-auth redirect back to my app fails because localhost
 doesn't have the same meaning over there.

 Mike

 On May 4, 11:03 am, Rajeev Dayal rda...@google.com wrote:
  Hey Tim,
 
  Right now, we have not built functionality into the Eclipse Plugin to
 detect
  when you want to launch your app and hit a particular servlet; we only
  append tohttp://localhost:8080/when you perform a right-click launch
  against a particular file (HTML or JSP).
 
  To change the default URL for a launch, follow the instructions here
 (esp.
  the GWT Settings section):
 
  http://code.google.com/eclipse/docs/running_and_debugging.html
 
  Rajeev
 
  On Fri, May 1, 2009 at 11:01 PM, TimOnGmail timbes...@gmail.com wrote:
 
   Hi all...
 
   When I run a GWT app in Tomcat, I can specify the base URL in the
   web.xml, or just by the fact that the webapp is known by the name of
   the directory it's in in the webapps directory.
 
   However, running in the Eclipse plugin, in hosted mode, it seems it
   always runs ashttp://localhost:8080.
 
   How can I change it so that it'shttp://localhost:8080/myAppor
   something different than the default?
 
   - Tim
 


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Re: HandlerRegistration not always so friendly ??


I remember trying this bubbling of events which didn't work for focus
events
So I am a bit sceptic about this, but maybe it improved..

 ...but I'm yet to see a concrete example of your needs that lead you
 to develop this heavy/distorted workaround framework you're talking
about...

That's not so difficult: I need an event interceptor for every basic
widget like explained above.
That is: I need to do things before the listeners are informed and a
confirmation of the interceptor that they are allowed to be informed
(event preview is too global in my case).

This isn't possible with the current HandlerManager so I have to
inject my own - the heavy/distored workaround framework  as you
call it, which is just based on standard design patterns, so it works
well/clean and clear.
It's just it wouldn't be necessary if Gwt would be more open like
explained above.


Ofcourse I can put those checks  you talk about in  the widget, but
that's not very elegant and I don't like to copy/paste code as I need
it on more places...
It's nice if you have just a few widgets, but not for me where I have
to meet complex requirements and have tons of widgets generated...
Ofcourse I can influence the HandlerManager in jnsi but that's fare
from elegant ... and not testable as the HandlerManager is not a
gwt specific thing, I can use it in any event manager application...


- Ed


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Re: Optimisation of obfuscated mode


This is true,

I was thinking of this later, and saw that in many cases, this COULD
be done,
And it can be done outside of the gwt compiler, if you like.

Some fancy regexp to find functions with EXACT method bodies and
renaming+deletion could potentially decrease file sizes dramatically,
but only for Obfuscated code...  Possibly a fourth compiler option
PRODUCTION which would do all the extra permutations for final
builds, using text functions after the Java-JavaScript magic
happens.  One look at the logic trees from the compiler is enough to
scare a stone into cold sweat, so to me, it seems easier to just use
RegExp; capture the argument names, back-reference them in the method
bodies, create generic method signatures, search for equalities, and
then replace them down to a minimum.

If someone who actually works on the compiler has any input, I'd love
to hear it.

/Starring this issue now...
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Re: Unique identifier


What do you call a GWT instance ? Do you know that GWT applications
are just HTML + js + servlets ? (servlets are the RPC implementations)



On May 6, 12:53 pm, Joakim Sjöberg joakim.sjob...@artificial-
solutions.com wrote:
 Hello!

 I am trying to build a function that stores data about each GWT instance that 
 is running in a database. Is there anyway
 way to get some sort of unique identifier from GWT in an easy way? I have 
 looked some at session handling, is that
 the right way to go? Should I use the RPC functionality for this?

 Joakim Sjöberg

 Technical Consultant
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i18n possible to change properties file name

2009-05-06 Thread denis56


His,

Does anyone know if it is possible (maybe with annotation) on the
interface extending Messages interface point to the property file that
should be used?

I am trying to use existing properties file, which is trivially called
messages.properties and forced to name interface also Messages and
capitalizing the file name, otherwise keys for my properties cannot be
found.

thanks

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Re: annotated timeline and menu


Annotated tiimeline is a flash animation so try this:

http://kb2.adobe.com/cps/155/tn_15523.html

Hope that helps,

Salvador

On May 6, 2:10 pm, ytbryan ytbr...@gmail.com wrote:
 hi all,

 anybody has a workaround for the google visualization annotated
 timeline being always on top of the drop down menu?

 when i have an annotated timeline, i cannot see  my drop down menu.
 drop down menu works fine with other visualization.

 thanks

 /bryan
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Re: InitialContext not supported!


Remove the App Engine support from your project.

Cheers,

Salvador

On May 6, 2:35 pm, zb zarkobodro...@gmail.com wrote:
 Recently, I have change my gwt working environment from Cypal to
 Google Plugin. Everything seems fine except compile error:
 'javax.naming.InitialContext is not supported by Google App Engine's
 Java runtime environment' in code line 'InitialContext ctx = new
 InitialContext();'.
 I use this to connect to EJB 3.0 middle layer.
 Does anyone have a solution?

 Best regards,
 Žarko Bodroški.
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RE: Unique identifier

2009-05-06 Thread Joakim Sjöberg


Hi!

Yes I know that, more or less what I want is some way to uniquely identify 
every time a user
goes into my page. When they do that I want to put that into a database (for 
example time when they used
my page) and in the end I want when they come to the end of my page (it's a 
form page) record the time
when they were finished. And for that I need to have a unique identifier that I 
can use to update the 
database with.

Hope this helps to explain more what I want.

// Joakim

-Original Message-
From: Google-Web-Toolkit@googlegroups.com 
[mailto:google-web-tool...@googlegroups.com] On Behalf Of Salvador Diaz
Sent: Wednesday, May 06, 2009 4:16 PM
To: Google Web Toolkit
Subject: Re: Unique identifier


What do you call a GWT instance ? Do you know that GWT applications
are just HTML + js + servlets ? (servlets are the RPC implementations)



On May 6, 12:53 pm, Joakim Sjöberg joakim.sjob...@artificial-
solutions.com wrote:
 Hello!

 I am trying to build a function that stores data about each GWT instance that 
 is running in a database. Is there anyway
 way to get some sort of unique identifier from GWT in an easy way? I have 
 looked some at session handling, is that
 the right way to go? Should I use the RPC functionality for this?

 Joakim Sjöberg

 Technical Consultant


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Re: Calling a different HTML page


Google Web Toolkit 1.6.4
HostedMode [-noserver] [-port port-number | auto] [-whitelist
whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-
gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-
startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers
count] module[s]

where
  -noserver  Prevents the embedded web server from running
  -port  Specifies the TCP port for the embedded web server
(defaults to )
  -whitelist Allows the user to browse URLs that match the
specified regexes (comma or space separated)
  -blacklist Prevents the user browsing URLs that match the
specified regexes (comma or space separated)
  -logLevel  The level of logging detail: ERROR, WARN, INFO,
TRACE, DEBUG, SPAM, or ALL
  -gen   The directory into which generated files will be
written for review
  -style Script output style: OBF[USCATED], PRETTY, or
DETAILED (defaults to OBF)
  -eaDebugging: causes the compiled output to check assert
statements.
  -serverSpecifies a different embedded web server to run
(must implement ServletContainerLauncher)
  -startupUrlAutomatically launches the specified URL
  -war   The war directory to write output files into
(defaults to war)
  -extra The directory into which extra, non-deployed files
will be written
  -workDir   The compiler work directory (must be writeable;
defaults to a system temp dir)
  -localWorkers  Specifies the number of local workers to use when
compiling permutations
and
  module[s]  Specifies the name(s) of the module(s) to host

On May 6, 3:02 pm, harjit.singh harjit.si...@content-studios.com
wrote:
 Thanks for the answer. When I have multiple modules and try to run the
 application. The GWT webserver asks me to choose a module to run. Is
 there any way to specify a default module to run when you have more
 than one module ?

 Thanks

 - Harjit

 On May 5, 8:20 pm, Vishesh visheshs...@gmail.com wrote:

  Try the code between the tags:
  code
  String lnk = GWT.getModuleBaseURL() + newPage.html?Parameter1= +
  parameter1 Parameter2= + parameter2;
  Window.open(lnk,New Window,);
  /code
  It will open a new window which can be a different module with its onw
  onModuleLoad() within the same project.
  Hope this helps..
  Vish..

  On Tue, May 5, 2009 at 6:26 PM, harjit.singh 

  harjit.si...@content-studios.com wrote:

   Sumit,

   Thanks for the response. I did the way you described it using JSP.

   I have one more question on the same lines. how can I call another
   module from a link ?

   Thanks

   - Harjit

   On May 5, 2:53 pm, Sumit Chandel sumitchan...@google.com wrote:
Hi Harjit,

Assuming that you really need these windows to be actual native browser
windows (and not simply popup panels, in which case you could use the
PopupPanel class), and further assuming that the HTML in the new windows
will need to be populated with some data from the server-side, here is a
proposed solution.

Let's say you want to have some link-styled text that can be clicked to
create the new window. You could do this by creating an HTML snippet and
adding a click handler to it. You would also need to style the HTML
   snippet
to make it look like a link.

In the click handler, you could make a callback to your server-side that
could read in whatever data is passed in the call and generate an HTML
   page
that will be served in the new window. Once the RPC completes, you can
create a new window sourced to the generated HTML page in the 
onSuccess()
method.

Alternatively, you could pre-generated these pages in timed background
   RPCs
and simply create an anchor tag sourced to the generated pages once
   they're
ready.

Hope that helps,
-Sumit Chandel

On Fri, May 1, 2009 at 2:15 PM, harjit.singh 

harjit.si...@content-studios.com wrote:

 Hi there,

 I have an GWT application. Right now what I'm doing is that I'm
 displaying the data in a single grid with all the buttons in a row .
 Each button has a listener. when i click one of the buttons, it hides
 the other widgets and displays the required widgets on the same page
 and displays some data on the same page. I have added a back button to
 the page and when the back button is clicked the app hides the panels
 and displays the other panels.

 What I need to do is following

 1) instead of having a button I need a link and when that link is
 clicked it would open the a URL in a seperate window and then later on
 display some data in that window.

 What approach should I take ?

 How can I have multiple htmls and call them from the GWT module or
 have multiple entry points to the application and call it ?

 Thanks

 -

  --
  Vishesh Sahu


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Re: Unique identifier


You could use gwt-log:
http://code.google.com/p/gwt-log/
with a RemoteLogger

Hope that helps,

Salvador

On May 6, 4:33 pm, Joakim Sjöberg joakim.sjob...@artificial-
solutions.com wrote:
 Hi!

 Yes I know that, more or less what I want is some way to uniquely identify 
 every time a user
 goes into my page. When they do that I want to put that into a database (for 
 example time when they used
 my page) and in the end I want when they come to the end of my page (it's a 
 form page) record the time
 when they were finished. And for that I need to have a unique identifier that 
 I can use to update the
 database with.

 Hope this helps to explain more what I want.

 // Joakim

 -Original Message-
 From: Google-Web-Toolkit@googlegroups.com 
 [mailto:google-web-tool...@googlegroups.com] On Behalf Of Salvador Diaz
 Sent: Wednesday, May 06, 2009 4:16 PM
 To: Google Web Toolkit
 Subject: Re: Unique identifier

 What do you call a GWT instance ? Do you know that GWT applications
 are just HTML + js + servlets ? (servlets are the RPC implementations)

 On May 6, 12:53 pm, Joakim Sjöberg joakim.sjob...@artificial-
 solutions.com wrote:
  Hello!

  I am trying to build a function that stores data about each GWT instance 
  that is running in a database. Is there anyway
  way to get some sort of unique identifier from GWT in an easy way? I have 
  looked some at session handling, is that
  the right way to go? Should I use the RPC functionality for this?

  Joakim Sjöberg

  Technical Consultant


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Re: HandlerRegistration not always so friendly ??


So, after having my errors pointed out to me, I did my research and
realized that I was talking about HandlerRegistrations, not
HandlerManager.  Oops...

...I've been trying to avoid as much of the Collections routines in
favor of custom JSNI stacks; they might obscure bugs, but they run
much faster.

Anyway, if you need an event model where you can turn one source
widget into another, why not just make a static class, widgetMapper,
with a
static private MapWidget,Widget map //or
MapWidget,WidgetCollection {If you need one-to-many},
public static Widget delegate(Widget x){
return map.containsKey(x)?map.get(x):x;
}

Then just call Widget src =  widgetMapper.delegate(((Widget)
event.getSource()); inside your handlers.  Since you've already
overridden HandlerManager, consider adding a static field: lastWidget,
which is either the Source Widget, or it's delegate source.

If your root event panel needs to forward events with a modified
Source object,
widgetMapper.delegate(((Widget)event.getSource()).fireEvent(event);
if you aren't forwarding the events to widgets with registered
handlers, you don't need to change the event's Source object, you just
need to turn the supplied Source into your desired Source.

Furthermore, if you need to do some testing before calling fireEvent,
make a testing interface that accepts two Widgets, and returns
boolean.  You could then send your events to a static function that
checks for a delegate widget. then checks for a test object linked to
the widgets, then, if test(x,y)==true, set a static Widget/
WidgetCollection instance to the delegate object and return true.
Then, your specific handlers can do if(widgetMapper.isValid(event))
{Widget newSource = widgetMapper.getLastWidget(); ...}  ...You could
even use generics or whatever you like.

The benefit of doing this statically as opposed to instance prototypes
is that your objects don't need to directly reference and re-reference
each other {reduces memory leakage}.  Also, you can get your code
reuse you were looking for

Anyway, I'm somewhat confused about what, exactly, you want...  If you
post some actual source of what you're doing, I'd probably be less
abstract and maybe even make a little sense... All I know is that if
you don't want to forward the event to Handlers added to sub-widgets,
then your issue likely isn't with event.getSource().  I am likely
wrong, but I don't really care.


Personally, I like static list objects that link a Widgets hashCode to
interface functions that take things like Event or Widget or whatever
you need as a parameter, and then use a static function like
xRun(int hash,Event x){
  if (jsMap.hasKey(hash))
  jsMap.castGet(hash).run(x);
}xRun(Object hash,Event x){xRun(hash.hashCode(),x);



xRun(event.getSource(),event);

where jsMap extends JavaScriptObject, uses JSNI to map ints to
Objects, and generics to return items in whatever class is needed.
HashMapObject,Event could work, but HashMapWidget,Event would
require a sometimes-needless cast from getSource() to Widget.

Good luck friend!
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Re: Trying to use server in another module


I've had some luck with adding multiple module-definitions in my build
file.
Instead of just x.dt or x.gwtlogin, put both {in ant}

  target name=hosted depends=javac description=Run hosted
mode
java failonerror=true fork=true
classname=com.google.gwt.dev.HostedMode
  classpath
pathelement location=src/
path refid=project.class.path/
  /classpath
  jvmarg value=-Xmx768M/
  arg value=-style/
  arg value=PRETTY/
  arg value=aiyx.x51.xInk/
  arg value=aiyx.X/
  arg value=x.dt/
  arg value=x.gwtlogin/
/java
  /target

This tells HostedMode to create all the specified modules, and have
them present in the active classpath.  It might bloat your compile
time a little, but it should help resolve classNotFounds

Of course, I'm basically ignorant of your server setup, but this is
how I use HostedMode to debug multiple projects that contain each
other in iframes
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Bar code scanner

2009-05-06 Thread hezjing

Hi
My customer is asking if my GWT application is able to accept input from the
bar code scanner.

I have not done anything with bar code scanner before this, but this is what
I got from Google:
A bar code scanner is typically comes with a keyboard wedge output or
a RS232 output.

I think there is no problem if using bar code scanner with keyboard wedge
output,
the scanner will input the string into the text field as if the user is
typing it from the keyboard.

The problem is when the customer is using bar code RS232 output, how do I
populate the string into the text field?


-- 

Hez

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overwriting locale client property

2009-05-06 Thread denis56


My client should specify locale with attribute language=xx set in
the query string. I tried pasting updated code from i18n..gwt.xml
module but getting an error Unexpected exception in locale detection,
using default: TypeError: invalid 'in' operand kd[a].

property-provider name=locale
![CDATA[
  try {
  var locale;

  // Look for the locale as a url argument
  if (locale == null) {
var args = location.search;
var startLang = args.indexOf(language);
if (startLang = 0) {
  var language = args.substring(startLang);
  var begin = language.indexOf(=) + 1;
  var end = language.indexOf();
  if (end == -1) {
end = language.length;
  }
  locale = language.substring(begin, end);
}
  }

  if (locale == null) {
// Look for the locale on the web page
locale = __gwt_getMetaProperty(language)
  }

  if (locale == null) {
return default;
  }

  while (!__gwt_isKnownPropertyValue(language,  locale)) {
var lastIndex = locale.lastIndexOf(_);
if (lastIndex == -1) {
  locale = default;
  break;
} else {
  locale = locale.substring(0,lastIndex);
}
  }
  return locale;
} catch(e){
  alert(Unexpected exception in locale detection, using default:
 + e);
  return default;
}
  ]]
  /property-provider

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Re: Two web.xml for hosted mode and real mode

2009-05-06 Thread olel


Thanks a lot! Somehow that had not worked some days ago, but now it
does. ;-)

On 4 Mai, 19:08, Sumit Chandel sumitchan...@google.com wrote:
 Hi Ole,

 In GWT 1.5.3, you don't need to define the servlets a second time in the
 web.xml file generated and used by the embedded Tomcat server in hosted
 mode. You should instead define your servlet targets in your GWT module XML
 file. There are servlet tags defined in the module XML that you can use to
 define your servlets and have them automatically copied over into the
 generated web.xml file for hosted mode.

 For more details, check out the documentation linked below:

 http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5s=goog...

 Hope that helps,
 -Sumit Chandel

 On Wed, Apr 29, 2009 at 12:18 AM, olel lauri...@engram.de wrote:

  Hi,

  I have a question concerning the web.xml files in a GWT 1.5.3
  application. As we are using some none-RPC servlets we need to define
  them in the web.xml.

  As far as I understand it there are two web.xml files. One in src\main
  \webapp\WEB-INF\ and one in tomcat\webapps\ROOT\WEB-INF. The first
  one is used when the WAR is created by maven 2 and the second one is
  used for the hosted mode.
  Unfortunately we therefore have to define the servlets in both files
  which is obviously error-prone. Is there a way to simplify that or am
  I doing something wrong?

  Thanks in advance,
  Ole
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In need of a GWT developer in Utah

2009-05-06 Thread Randi


I have a 6 month contract for a GWT/J2EE developer in Utah.

Other than GWT and J2EE experience candidates need to have experience
using Spring and Hibernate and WebLogic.

The position is with a State agency and because of the nature of the
work the position requires both US and Utah citizenship.

Please contact me at rthur...@smithjohnson.com if you are interested
in the position.

Thanks!

Randi


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Re: How to suppress the token change for Hyperlink


George's hack with the boolean for don't do history stuff is
actually a surprisingly good way to deal with History Events.

In order to achieve History events from multiple sources with multiple
targets, some validation on HistoryToken is needed, and using a
boolean variable will let you change this functionality
programmatically.  This might not seem like a big deal until you
notice how you can't click a history-link after it's been clicked
once.  Say, you open an iframe on a history event, and once it's
closed, you want to let the user click on it again without having to
click on anything else.  The only way is to inject a useless
HistoryToken with History.newItem(do nothing,false);, but now you
will lose directionality {as forward to do nothing looks like
backward to do nothing}, which means you now need to inject (go
forward,false); AND (go backward,false), and when a REAL history
event is fired, do History.goBack();History.goBack(); or
History.goForward();History.goForward();

It may seem like a gross hack, but it DOES help you to make your
application more static and bookmarkable.

Using anchor overrides and doing it all in javascript means you lose
state when the user actually presses back or forward, AND when power-
users view your site, they might want to open a few windows at the
same time by Ctrl+clicking links.  We all do it, and if every link
opens javascript:void(0);, the only way to have multiple tabs of
content is to open each to the home page and manually navigate the to
the application state you want to test / experience.

Taking the time to hack with History support will be worth it when
your users start bookmarking your content, and that bookmark actually
points to the content they want to see next time.
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Using GWT to produce pure JavaScript libraries

2009-05-06 Thread Manuel Carrasco

  I've released
JsChismeshttp://code.google.com/p/gwtchismes/wiki/JsChismes_Documentationwhich
is the result of exporting
gwtchismes http://code.google.com/p/gwtchismes library code in order to
populate its classes and methods into native javascript.
The goal of this port is that the set of widgets can now be used directly in
html pages without the need of knowing anything about gwt and java. So
non-java developers (ruby, php ..) and designers can use the library in
their pages with a little effort.

I see several advantages in using GWT to produce javascript libraries:  IDE,
re-factoring, name-spaces, reusing code, debugging, testing, coverage tools,
obfuscate, optimize, browser compatibility  etc. and this technique is
easier since Ray Cromwell's
gwt-exporthttp://code.google.com/p/gwt-exporter/library makes it
pretty simple.


Manolo Carrasco

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Re: Gears GWT API on Android behaving differently?

2009-05-06 Thread Evan Ruff


Ok I seriously think I'm about to lose it here. This is driving me
nuts!!!

For some reason, I cannot get the following class to run in Android
without throwing a Wrong Number of SQL Parameters Exception. It
throws the error on my G1 (Android 1.1) and on my Cupcake Emulator. It
works without fail on every other platform I've tried it on. Also, it
seems to work find if I just copy/paste the insert user method into
the DatabaseDemo app from the Gears Sample application. Does anyone
have any idea what could be happening here? I'm using GWT 1.5.3 and
Gears 1.2.0. I feel like I've tried every possible permutation of this
code and still have not been successful!

Could someone maybe give this thing an old run and test with the
Android Emulator?

Here is the stand alone class:

public class TestGears implements EntryPoint
{
/*
| C O N S T A N T S |
*/

private static final String DB_NAME = moose_db;
private static final String INSERT_USER = INSERT INTO userTable
(user_id, sessionId, name, email) values ( ?, ?, ?, ? );
private static final String CREATE_USER_TABLE = CREATE TABLE IF NOT
EXISTS userTable ( user_id TEXT NOT NULL, sessionId TEXT, name TEXT,
email TEXT );

/*
|I N S T A N C E   V A R I A B L E S|
*/

private Database db;

/*
| C O N S T R U C T O R S   |
*/

/*
|   P U B L I CA P IM E T H O D S   |
*/

public void onModuleLoad()
{
User testUser = new User();
testUser.id = 100L;
testUser.name = Forced Manual ;
testUser.currentSessionId = FAKESESSION;

this.db = Factory.getInstance().createDatabase();
this.db.open( DB_NAME );
try
{
db.execute( DROP TABLE IF EXISTS userTable );
this.db.execute( CREATE_USER_TABLE );
}
catch ( DatabaseException e )
{
Window.alert( e.getMessage() );
}

insertUser( testUser );

}

/*
|N O N - P U B L I CM E T H O D S   |
*/

public void insertUser( User theUser )
{
final String[] params = new String[] { Long.toString( 
theUser.id ) ,
theUser.currentSessionId , theUser.name ,  };
try
{
db.execute( INSERT_USER, params );
}
catch ( DatabaseException e )
{
String parameterString = new String();
parameterString += [ ;
for ( String param : params )
{
parameterString += param + , ;
}
parameterString = parameterString.substring( 0,
parameterString.length() - 2 );
parameterString +=  ];

Window.alert( insertUser:  + e.getMessage() +  -  +
parameterString );
}
}

/*
|   I N L I N EC L A S S E S|
*/

public class User
{
public Long id;
public String name = new String();
public String currentSessionId = new String();
}
}



On May 5, 2:24 pm, Evan Ruff evan.r...@gmail.com wrote:
 Oh also, I should add, that I checked out the DB structure using the
 little DB explorer guy that is available in the vanilla gears distro.

 The SQLite DB looks identical as the one on the other platforms, just
 without data ('cause of all the SQL errors, I assume)

 Thanks!

 E

 On May 5, 2:22 pm,EvanRuffevan.r...@gmail.com wrote:

  Hey guys,

  I've got a pretty heavy gears app the works great in IE, Firefox and
  Chrome; however, I'm getting some inconsistencies when running it on
  Android using Gears GWT API 1.2.0. Whenever I seem to run ANY query, I
  get a Wrong number of SQL parameters DatabaseException. Everything
  works perfectly in the other browsers.

  I'm debugging back to the client and my info is:
  Exception Message: Wrong number of SQL parameters.
  Method: selectUserByUserId
  Parameters: [ 1 ]

  Here is the method:

  private static final String SELECT_USER = SELECT

Re: How to suppress the token change for Hyperlink




On 6 mai, 17:47, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
 George's hack with the boolean for don't do history stuff is
 actually a surprisingly good way to deal with History Events.

 In order to achieve History events from multiple sources with multiple
 targets, some validation on HistoryToken is needed, and using a
 boolean variable will let you change this functionality
 programmatically.  This might not seem like a big deal until you
 notice how you can't click a history-link after it's been clicked
 once.  Say, you open an iframe on a history event, and once it's
 closed, you want to let the user click on it again without having to
 click on anything else.  The only way is to inject a useless
 HistoryToken with History.newItem(do nothing,false);, but now you
 will lose directionality {as forward to do nothing looks like
 backward to do nothing}, which means you now need to inject (go
 forward,false); AND (go backward,false), and when a REAL history
 event is fired, do History.goBack();History.goBack(); or
 History.goForward();History.goForward();

 It may seem like a gross hack, but it DOES help you to make your
 application more static and bookmarkable.

I find it much easier/better to just use an Anchor with a ClickHandler
that mimics the Hyperlink (Hyperlink would be equivalent to wrap the
Anchor in a SimplePanel and set the panel's primary style name to gwt-
Hyperlink).

final String TARGET_HISTORY_TOKEN = targetHistorytoken;
Anchor anchor = new Anchor(text, # + TARGET_HISTORY_TOKEN);
anchor.addClickHandler(new ClickHandler() {
   static final HyperlinkImpl impl = GWT.create(HyperlinkImpl.class);

   public void onClick(ClickEvent event) {
  if (impl.handleAsClick(Event.as(event.getNativeEvent( {
 // do your stuff here and choose whether to call the
following History.newItem
 History.newItem(targetHistoryToken);
 // ...though always prevent default (a priori), unless that's
not what you want...
 event.preventDefault();
  }
   }
});

 Using anchor overrides and doing it all in javascript means you lose
 state when the user actually presses back or forward, AND when power-
 users view your site, they might want to open a few windows at the
 same time by Ctrl+clicking links.  We all do it, and if every link
 opens javascript:void(0);, the only way to have multiple tabs of
 content is to open each to the home page and manually navigate the to
 the application state you want to test / experience.

 Taking the time to hack with History support will be worth it when
 your users start bookmarking your content, and that bookmark actually
 points to the content they want to see next time.

In your iframe sample use case above, though, you're mis-using the
history/hyperlink, as the history state is not stable (you can
close the iframe, whatever it means to you), and you're expecting
the hyperlink to take an action (re-open the closed iframe), not
only navigate to a given history state. It would be quite easy to
solve (hack!) by testing the current history getToken() and then call
newItem(x) or fireCurrentHistoryState(). I'm using such a hack (in
response to async requests though; instead of rewriting my app) and it
works pretty well.
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Re: Optimisation of obfuscated mode

2009-05-06 Thread Elias Martenson


Ah, that's not a bad idea actually. Using a regex that is… I might
actually try that.

I haven't actually looked at the compiler source yet, but I think I'll
do that tomorrow. I'll update if I come up with anything.

On 6 Maj, 22:00, Alyxandor a.revolution.ultra.b...@gmail.com wrote:
 This is true,

 I was thinking of this later, and saw that in many cases, this COULD
 be done,
 And it can be done outside of the gwt compiler, if you like.

 Some fancy regexp to find functions with EXACT method bodies and
 renaming+deletion could potentially decrease file sizes dramatically,
 but only for Obfuscated code...  Possibly a fourth compiler option
 PRODUCTION which would do all the extra permutations for final
 builds, using text functions after the Java-JavaScript magic
 happens.  One look at the logic trees from the compiler is enough to
 scare a stone into cold sweat, so to me, it seems easier to just use
 RegExp; capture the argument names, back-reference them in the method
 bodies, create generic method signatures, search for equalities, and
 then replace them down to a minimum.

 If someone who actually works on the compiler has any input, I'd love
 to hear it.

 /Starring this issue now...
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Re: overwriting locale client property




On 6 mai, 17:36, denis56 denis.ergashb...@gmail.com wrote:
 My client should specify locale with attribute language=xx set in
 the query string. I tried pasting updated code from i18n..gwt.xml
 module but getting an error Unexpected exception in locale detection,
 using default: TypeError: invalid 'in' operand kd[a].

         property-provider name=locale
     ![CDATA[
       try {
       var locale;

       // Look for the locale as a url argument
       if (locale == null) {
         var args = location.search;
         var startLang = args.indexOf(language);
         if (startLang = 0) {
           var language = args.substring(startLang);
           var begin = language.indexOf(=) + 1;
           var end = language.indexOf();
           if (end == -1) {
             end = language.length;
           }
           locale = language.substring(begin, end);
         }
       }

       if (locale == null) {
         // Look for the locale on the web page
         locale = __gwt_getMetaProperty(language)
       }

       if (locale == null) {
         return default;
       }

       while (!__gwt_isKnownPropertyValue(language,  locale)) {

Should probably be locale here.

         var lastIndex = locale.lastIndexOf(_);
         if (lastIndex == -1) {
               locale = default;
           break;
         } else {
           locale = locale.substring(0,lastIndex);
         }
       }
       return locale;
     } catch(e){
       alert(Unexpected exception in locale detection, using default:
  + e);
       return default;
     }
   ]]
   /property-provider
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Re: Gears GWT API on Android behaving differently?

2009-05-06 Thread Eric Ayers

I looked at your code and didn't see anything obviously wrong.  I searched
on some of the Gears groups and found a similar report, but no answer.

It is worth nothing that the version of Gears on android is different
(older) than the version you are getting when you install Gears on a desktop
browser.  Can we rule out the GWT bindings?  Could you write a simple
program that reproduces (or fails to reproduce) the problem in straight
JavaScript?

-Eric.
-- 
Eric Z. Ayers - GWT Team - Atlanta, GA USA
http://code.google.com/webtoolkit/

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Re: Gears GWT API on Android behaving differently?

2009-05-06 Thread Eric Ayers

If it turns out to be reproducible outside of GWT, I was going to point you
at the android-developers google group.
http://groups.google.com/group/android-developers


On Wed, May 6, 2009 at 1:45 PM, Eric Ayers zun...@google.com wrote:

 I looked at your code and didn't see anything obviously wrong.  I searched
 on some of the Gears groups and found a similar report, but no answer.

 It is worth nothing that the version of Gears on android is different
 (older) than the version you are getting when you install Gears on a desktop
 browser.  Can we rule out the GWT bindings?  Could you write a simple
 program that reproduces (or fails to reproduce) the problem in straight
 JavaScript?

 -Eric.
 --
 Eric Z. Ayers - GWT Team - Atlanta, GA USA
 http://code.google.com/webtoolkit/




-- 
Eric Z. Ayers - GWT Team - Atlanta, GA USA
http://code.google.com/webtoolkit/

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Re: Gears GWT API on Android behaving differently?

2009-05-06 Thread Evan Ruff


Hey Eric,

I'm pretty much terrified of Javascript.

I'm a little hesitant to make any determination whatsoever as to the
cause of the problem. When I run the GWT Gears Sample DatabaseDemo
project, it works as expected. I can even replace all of the DB
specifics with the internals of my tables/queries and it seems to
work! It's just so freakin' frustrating.

RememberTheMilk and the mobile GMail seem to make use of Gears on
Android without issue, so I really don't know where to go from here.
Any other suggestions?

Here's the replaced DatabaseDemo code, fwiw:

public class Gears implements EntryPoint
{
private static final int NUM_SAVED_ROWS = 3;
private static final int NUM_DATA_TABLE_COLUMNS = 3;

private final Button addButton = new Button( Add );
private final Button clearButton = new Button( Clear Database );
private Database db;
private final TextBox input = new TextBox();
private final FlexTable dataTable = new FlexTable();

public void onModuleLoad()
{
VerticalPanel outerPanel = new VerticalPanel();
outerPanel.setSpacing( 10 );
outerPanel.getElement().getStyle().setPropertyPx( margin, 15 
);

HorizontalPanel textAndButtonsPanel = new HorizontalPanel();
textAndButtonsPanel.add( new Label( Enter a Phrase:  ) );
textAndButtonsPanel.add( input );
textAndButtonsPanel.add( addButton );
textAndButtonsPanel.add( clearButton );
outerPanel.add( textAndButtonsPanel );
outerPanel.add( new Label( Last 3 Entries: ) );
outerPanel.add( dataTable );

for ( int i = 0; i = NUM_SAVED_ROWS; ++i )
{
dataTable.insertRow( i );
for ( int j = 0; j  NUM_DATA_TABLE_COLUMNS; j++ )
{
dataTable.addCell( i );
}
}
dataTable.setWidget( 0, 0, new HTML( bId/b ) );
dataTable.setWidget( 0, 1, new HTML( bPhrase/b ) );
dataTable.setWidget( 0, 2, new HTML( bTimestamp/b ) );

// Create the database if it doesn't exist.
try
{
db = Factory.getInstance().createDatabase();
db.open( database-demo );

db.execute( DROP TABLE IF EXISTS user );
db.execute( CREATE TABLE IF NOT EXISTS user ( user_id 
TEXT NOT
NULL, sessionId TEXT, name TEXT, email TEXT ) );
}
catch ( DatabaseException e )
{
RootPanel.get( demo ).add( new HTML( Error opening 
or creating
database: font color=\red\ + e.toString() + /font ) );
// Fatal error. Do not build the interface.
return;
}

input.addKeyboardListener( new KeyboardListenerAdapter()
{
@Override
public void onKeyDown( Widget sender, char keyCode, int 
modifiers )
{
if (keyCode == KeyboardListener.KEY_ENTER)
{
insertPhrase();
}
}
} );

addButton.addClickListener( new ClickListener()
{
public void onClick( Widget sender )
{
insertPhrase();
}
} );

clearButton.addClickListener( new ClickListener()
{
public void onClick( Widget sender )
{
clearPhrases();
displayRecentPhrases();
}
} );

RootPanel.get( demo ).add( outerPanel );
displayRecentPhrases();
}

/**
 * Remove all phrases from the database.
 */
private void clearPhrases()
{
try
{
db.execute( DELETE FROM Phrases );
}
catch ( DatabaseException e )
{
Window.alert( e.toString() );
}
}

/**
 * Fill the labels with the phrases from the database.
 */
private void displayRecentPhrases()
{
try
{
ResultSet rs = db.execute( SELECT name, email FROM 
user );
int i;

for ( i = 1; rs.isValidRow(); ++i, rs.next() )
{

I have a problem withn the refresh file

2009-05-06 Thread arnaud


Hello every one,
i'm using gwt 16.4 and GWT-ext 2.0.5.When i modify the html file
siteAfrikaSciences.html  i have the result of the old file. I try to
changem the name of the file and i put 2 at it's end
siteAfrikaSciences2.html. Unable to find the file - correct. But when
i modify to the correct name siteAfrikaSciences.html i have this error

HTTP ERROR: 503
SERVICE_UNAVAILABLE
RequestURI=/siteAfrikaSciences.html

I try to clean and rebuild with Ant i have this error of build:
Buildfile: C:\Documents and Settings\Arnaud AGOSSA\Bureau
\ProjetSiteInternetArnaud\gwt-windows-1.6.4\siteAfrikaSciences
\build.xml
libs:
 [copy] Copying 1 file to C:\Documents and Settings\Arnaud AGOSSA
\Bureau\ProjetSiteInternetArnaud\gwt-windows-1.6.4\siteAfrikaSciences
\war\WEB-INF\lib
javac:
[javac] Compiling 4 source files to C:\Documents and Settings
\Arnaud AGOSSA\Bureau\ProjetSiteInternetArnaud\gwt-
windows-1.6.4\siteAfrikaSciences\war\WEB-INF\classes

BUILD FAILED
C:\Documents and Settings\Arnaud AGOSSA\Bureau\ProjetSiteInternetArnaud
\gwt-windows-1.6.4\siteAfrikaSciences\build.xml:25: Unable to find a
javac compiler;
com.sun.tools.javac.Main is not on the classpath.
Perhaps JAVA_HOME does not point to the JDK.
It is currently set to C:\Program Files\Java\jre1.6.0

The class Directory is also empty.
What can i do?
Thank you for your response
Arnaud


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Re: RPC callback problem


I have tried with DTO but i always have the following error :

This application is out of date, please click the refresh button on
your browser.

I have empty my cache, but the problem persists.

Someone has an idea ?

Thanks.

On 6 mai, 12:51, Ouaibou ouai...@gmail.com wrote:
 Okay, thanks Salvador, I will see that :o)

 On 6 mai, 11:17, Salvador Diaz diaz.salva...@gmail.com wrote:



  Everybody seems to be missing this since app engine for java was
  released. Try reading the GWT Developer Guide guys, you'll find all
  kinds of interesting and useful stuff.

  Anyway, the problem is that you can't use any
  org.datanucleus.store.appengine.* classes in your client-side code.
  You have to use the DTO pattern.

  Here's one of the discussions related to this topic from a couple of
  days 
  ago:http://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa...

  You could also try searching the forum, that'd keep us from answering
  the same question for the n-th time.

  Hope that helps;

  Salvador

  PS: The relevant part of the developer documentation discussing this
  is 
  here:http://code.google.com/webtoolkit/doc/1.6/DevGuideCodingBasics.html#D...

  On May 6, 11:01 am, Paul Robinson ukcue...@gmail.com wrote:

   Your onFailure method ignores the Throwable it's given. Maybe it
   contains something useful?

   Ouaibou wrote:
Hello,

I have a problem with the callback of a RPC call. I have post in
appengine forum because i think it was a problem with the appengine
datastore, but Max Ross suggests me to post here :

   http://groups.google.com/group/google-appengine-java/browse_thread/th...

In order to summarize :

I have two classes AudioFile and Genre. AudioFile as a field of type
Genre. Both are marked as detachable like Max says me. I add an
AudioFile in the datastore and then i do a RPC call in the client side
in order to retrieve the data :

this.gtunesService.getAudioFiles(new AsyncCallbackListAudioFile()
{
                       public void onFailure(Throwable caught) {
                                SC.say(Gtunes.SERVER_ERROR);
                        }
                        public void onSuccess(ListAudioFile result)
{
                                Gtunes.this.audioFiles = result;
                                String buf = ;
                                for (AudioFile af :
Gtunes.this.audioFiles) {
                                        buf += genre =  + af.getGenre
().getName() +  - 
                                                        + af.getName()
+ br /;
                                }
                                SC.say(buf);
                        }
                });

The problem is in the server side with the following code :

public ListAudioFile getAudioFiles() {
           ListAudioFile audioFiles = null;
           PersistenceManager pm = PMF.get().getPersistenceManager();

           try {
                   Query q = pm.newQuery(AudioFile.class);
                   q.setOrdering(name);
                   audioFiles = new 
ArrayListAudioFile((ListAudioFile) q.execute
());
                   pm.detachCopyAll(audioFiles);
           } finally {
                   pm.close();
           }

           System.out.println(list =  + audioFiles);
           for (AudioFile audioFile : audioFiles) {
                   System.out.println(name =  + audioFile.getName() + 
\n);
           }

           return audioFiles;
   }

audioFiles contains my data. But the return has a problem because i
enter in the onFailure in the client side but without any error.

However, i see that if i change the line :

audioFiles = new ArrayListAudioFile((ListAudioFile) q.execute());

for :

audioFiles = (ListAudioFile) q.execute();

I have get the following error :

5 mai 2009 22:23:23
com.google.appengine.tools.development.ApiProxyLocalImpl log
SEVERE: [1241555003875000] javax.servlet.ServletContext log:
Exception
while dispatching incoming RPC call
com.google.gwt.user.client.rpc.SerializationException: Type
'org.datanucleus.store.appengine.query.StreamingQueryResult' was not
included in the set of types which can be serialized by this
SerializationPolicy or its Class object could not be loaded. For
security purposes, this type will not be serialized.
        at
com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSer
ialize
(StandardSerializationPolicy.java:83)
        at
com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.seriali
ze
(ServerSerializationStreamWriter.java:591)
        at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.write
Object
(AbstractSerializationStreamWriter.java:129)
        at

Re: Debugging a GWT project in netbeans + glassfish

2009-05-06 Thread Sumit Chandel

Hi Ariel,
Assuming you're using the GWT4NB plugin for your application, you should
probably try posting up on the GWT4NB support group. There should be a way
to pass more memory to the hosted mode process through the plugin launch
configuration, which is what you'll need to do to get over the
java.lang.OutOfMemoryError block.

GWT4NB Discussion forum:
https://gwt4nb.dev.java.net/servlets/ForumMessageList?forumID=2603

Hope that helps,
-Sumit Chandel

On Fri, May 1, 2009 at 6:45 AM, ariel_ro bonnano@gmail.com wrote:


 Hello everybody!

 I have a question related to the debugging process of GWT apps.
 Basically when I set a breakpoint at any line in Netbeans IDE a window
 asks me weather I want to launch hosted mode(server-side) or client
 mode. After that, the GWT Development Shell along with a browser
 window appear but the Shell has the following message to display:

 [ERROR] Failure to load module 'timetable.Main'
 java.lang.OutOfMemoryError: Java heap space
at java.util.Arrays.copyOf(Arrays.java:2882)
at java.lang.AbstractStringBuilder.expandCapacity
 (AbstractStringBuilder.java:100)
at
 java.lang.AbstractStringBuilder.append(AbstractStringBuilder.java:
 390)
at java.lang.StringBuffer.append(StringBuffer.java:224)
at
 org.eclipse.jdt.internal.compiler.Compiler.handleInternalException
 (Compiler.java:467)
at org.eclipse.jdt.internal.compiler.Compiler.compile(Compiler.java:
 411)
at com.google.gwt.dev.javac.JdtCompiler.doCompile(JdtCompiler.java:
 277)
at
 com.google.gwt.dev.javac.JdtCompiler.compile(JdtCompiler.java:193)
at com.google.gwt.dev.javac.CompilationState.compile
 (CompilationState.java:115)
at com.google.gwt.dev.cfg.ModuleDef.updateTypeOracle(ModuleDef.java:
 477)
at
 com.google.gwt.dev.cfg.ModuleDef.getTypeOracle(ModuleDef.java:324)
at com.google.gwt.dev.GWTShell
 $BrowserWidgetHostImpl.createModuleSpaceHost(GWTShell.java:252)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.gwtOnLoad
 (BrowserWidgetIE6.java:72)
at com.google.gwt.dev.shell.ie.BrowserWidgetIE6$External.invoke
 (BrowserWidgetIE6.java:139)
at com.google.gwt.dev.shell.ie.IDispatchImpl.Invoke
 (IDispatchImpl.java:294)
at com.google.gwt.dev.shell.ie.IDispatchImpl.method6
 (IDispatchImpl.java:194)
at org.eclipse.swt.internal.ole.win32.COMObject.callback6
 (COMObject.java:117)
at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method)
at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:1925)
at
 org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:2966)
at com.google.gwt.dev.GWTShell.pumpEventLoop(GWTShell.java:720)
at com.google.gwt.dev.GWTShell.run(GWTShell.java:593)
at com.google.gwt.dev.GWTShell.main(GWTShell.java:357)

 [ERROR] Out of memory; to increase the amount of memory, use the -Xmx
 flag at startup (java -Xmx128M ...)

 I tried many things to increase the memory but none seems to work. Not
 being able to debug my application is a serios drawback for me.

 Any help will be highly appreciated!

 Thanks in advance,
 Ariel

 


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I don't know how to add handlers to widgets!

2009-05-06 Thread Stephen Cagle


This is probably a really simple thing, but I don't know how to
implement the following.

package mods.client.resultSelector;

import com.google.gwt.event.dom.client.MouseDownEvent;
import com.google.gwt.event.dom.client.MouseDownHandler;
import com.google.gwt.event.dom.client.MouseMoveEvent;
import com.google.gwt.event.dom.client.MouseMoveHandler;
import com.google.gwt.event.dom.client.MouseOutEvent;
import com.google.gwt.event.dom.client.MouseOutHandler;
import com.google.gwt.event.dom.client.MouseUpEvent;
import com.google.gwt.event.dom.client.MouseUpHandler;
import com.google.gwt.user.client.ui.AbsolutePanel;
import com.google.gwt.user.client.ui.Composite;

public class MousyAbsolutePanel extends Composite implements
MouseDownHandler {

AbsolutePanel abs = new AbsolutePanel();

public MousyAbsolutePanel(int width){
System.out.println(MousyAbsolutePanel being created with 
width: +
width);
initWidget(abs);
abs.setWidth(String.valueOf(width));
abs.setHeight(100%);
abs.setStyleName(mousyAbsolutePanel);
}

public void onMouseDown(MouseDownEvent event) {
System.out.println(onMouseDown());
}

}

I want to have what is effectively a absolutePanel that can accept
mouse events. However, within the Composite object I don't know how to
tie the the handler I have written (the onMouseDown() thing) with the
abs variable. To put it sucinctly, I wan the abs AbsolutePanel to
respond when it is clicked upon, but AbsolutePanels do not naturally
accept click events. How do I go about doing this?
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horizontal and vertical flow panels

2009-05-06 Thread Sudhir


I've made horizontal and vertical flow panels and put them up here:

http://blog.sudhirj.com/2009/05/vertical-and-horizontal-flow-panels-in.html

Any idea why something like this isn't in GWT in the first place? It
would be useful... The tables implementation seems very messy.

Sudhir Jonathan

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RPC Call and onSuccess get File.

2009-05-06 Thread Sergio Silva



I have a problem downloading a file using Internet Explorer 7:

I Have a GWT almost offline application that works and generates
lots of data that will be written into a PDF report.

The only call that the application do to a servlet is when he needs to
generate the PDF report.

I'm using birt engine to generate the PDF report, and i'm doing a RPC
call to generate the pdf:


On GWT file:

reportService.generateReport(...lots of params..., new AsyncCallback
() {

public void onFailure(final Throwable throwable) {
}

public void onSuccess(final Object o) {
Frame downloadFrame = new Frame();
downloadFrame .setSize(0px, 0px);
downloadFrame .setVisible(false);
RootPanel.get().add(downloadFrame );
downloadFrame .setUrl(GWT.getModuleBaseURL() +
DownloadReportService);
 }
 });

The report PDF is sucessfully generated and placed on a temporary dir,
where it will be loaded by the DownloadReportService.


This works fine withall firefox versions but in IE7 it doesn't let me
download the file until I accept a raised warning of download blocked
(appears when the address it's not localhost address and with default
ie7 settings).

When i accept the download warning all the information in my
application is clean because IE refreshes the page.

I saw this problem solved on another threads on this list, and i tried
to do it that way, but it didn't work.
(Using Window.open or Window.Location.assign Window.Location.assign).


I want to get rid of the download warning, or if not possible, make
sure the page is not refreshed and the content cleaned! Can anyone
help me?


The DownloadReportService (extends HttpServlet) code:

protected void doGet(HttpServletRequest request, HttpServletResponse
response) throws ServletException, IOException {
String dir = C:\\tmp;
String fileName = test.pdf;

// Open file
File f = new File(dir + \\ + fileName);
ServletOutputStream op = response.getOutputStream();
ServletContext context = getServletConfig().getServletContext
();
String mimetype = context.getMimeType(fileName);

// Set the servlet response
response.setContentType((mimetype != null) ? mimetype :
application/octet-stream);
response.setContentLength((int) f.length());
response.setHeader(Content-Disposition, attachment;
filename=\ + fileName + \);

// Stream to the requester.
byte[] bbuf = new byte[BUFSIZE];
DataInputStream in = new DataInputStream(new FileInputStream
(f));

int length;
while ((length = in.read(bbuf)) != -1) {
op.write(bbuf, 0, length);
}

in.close();
op.flush();
op.close();

}



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RE: Unique identifier

2009-05-06 Thread Joakim Sjöberg


Hi!

Seems good, but I still got the problem with the unique identifier, right?

// Joakim

-Original Message-
From: Google-Web-Toolkit@googlegroups.com 
[mailto:google-web-tool...@googlegroups.com] On Behalf Of Salvador Diaz
Sent: Wednesday, May 06, 2009 4:46 PM
To: Google Web Toolkit
Subject: Re: Unique identifier


You could use gwt-log:
http://code.google.com/p/gwt-log/
with a RemoteLogger

Hope that helps,

Salvador

On May 6, 4:33 pm, Joakim Sjöberg joakim.sjob...@artificial-
solutions.com wrote:
 Hi!

 Yes I know that, more or less what I want is some way to uniquely identify 
 every time a user
 goes into my page. When they do that I want to put that into a database (for 
 example time when they used
 my page) and in the end I want when they come to the end of my page (it's a 
 form page) record the time
 when they were finished. And for that I need to have a unique identifier that 
 I can use to update the
 database with.

 Hope this helps to explain more what I want.

 // Joakim

 -Original Message-
 From: Google-Web-Toolkit@googlegroups.com 
 [mailto:google-web-tool...@googlegroups.com] On Behalf Of Salvador Diaz
 Sent: Wednesday, May 06, 2009 4:16 PM
 To: Google Web Toolkit
 Subject: Re: Unique identifier

 What do you call a GWT instance ? Do you know that GWT applications
 are just HTML + js + servlets ? (servlets are the RPC implementations)

 On May 6, 12:53 pm, Joakim Sjöberg joakim.sjob...@artificial-
 solutions.com wrote:
  Hello!

  I am trying to build a function that stores data about each GWT instance 
  that is running in a database. Is there anyway
  way to get some sort of unique identifier from GWT in an easy way? I have 
  looked some at session handling, is that
  the right way to go? Should I use the RPC functionality for this?

  Joakim Sjöberg

  Technical Consultant




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Re: RPC callback problem


There was a little mistake in my DTO. Now all is okay.

Thanks for your help.

On 6 mai, 20:23, Ouaibou ouai...@gmail.com wrote:
 I have tried with DTO but i always have the following error :

 This application is out of date, please click the refresh button on
 your browser.

 I have empty my cache, but the problem persists.

 Someone has an idea ?

 Thanks.

 On 6 mai, 12:51, Ouaibou ouai...@gmail.com wrote:



  Okay, thanks Salvador, I will see that :o)

  On 6 mai, 11:17, Salvador Diaz diaz.salva...@gmail.com wrote:

   Everybody seems to be missing this since app engine for java was
   released. Try reading the GWT Developer Guide guys, you'll find all
   kinds of interesting and useful stuff.

   Anyway, the problem is that you can't use any
   org.datanucleus.store.appengine.* classes in your client-side code.
   You have to use the DTO pattern.

   Here's one of the discussions related to this topic from a couple of
   days 
   ago:http://groups.google.com/group/Google-Web-Toolkit/browse_thread/threa...

   You could also try searching the forum, that'd keep us from answering
   the same question for the n-th time.

   Hope that helps;

   Salvador

   PS: The relevant part of the developer documentation discussing this
   is 
   here:http://code.google.com/webtoolkit/doc/1.6/DevGuideCodingBasics.html#D...

   On May 6, 11:01 am, Paul Robinson ukcue...@gmail.com wrote:

Your onFailure method ignores the Throwable it's given. Maybe it
contains something useful?

Ouaibou wrote:
 Hello,

 I have a problem with the callback of a RPC call. I have post in
 appengine forum because i think it was a problem with the appengine
 datastore, but Max Ross suggests me to post here :

http://groups.google.com/group/google-appengine-java/browse_thread/th...

 In order to summarize :

 I have two classes AudioFile and Genre. AudioFile as a field of type
 Genre. Both are marked as detachable like Max says me. I add an
 AudioFile in the datastore and then i do a RPC call in the client side
 in order to retrieve the data :

 this.gtunesService.getAudioFiles(new AsyncCallbackListAudioFile()
 {
                        public void onFailure(Throwable caught) {
                                 SC.say(Gtunes.SERVER_ERROR);
                         }
                         public void onSuccess(ListAudioFile result)
 {
                                 Gtunes.this.audioFiles = result;
                                 String buf = ;
                                 for (AudioFile af :
 Gtunes.this.audioFiles) {
                                         buf += genre =  + 
 af.getGenre
 ().getName() +  - 
                                                         + af.getName()
 + br /;
                                 }
                                 SC.say(buf);
                         }
                 });

 The problem is in the server side with the following code :

 public ListAudioFile getAudioFiles() {
            ListAudioFile audioFiles = null;
            PersistenceManager pm = PMF.get().getPersistenceManager();

            try {
                    Query q = pm.newQuery(AudioFile.class);
                    q.setOrdering(name);
                    audioFiles = new 
 ArrayListAudioFile((ListAudioFile) q.execute
 ());
                    pm.detachCopyAll(audioFiles);
            } finally {
                    pm.close();
            }

            System.out.println(list =  + audioFiles);
            for (AudioFile audioFile : audioFiles) {
                    System.out.println(name =  + audioFile.getName() 
 + \n);
            }

            return audioFiles;
    }

 audioFiles contains my data. But the return has a problem because i
 enter in the onFailure in the client side but without any error.

 However, i see that if i change the line :

 audioFiles = new ArrayListAudioFile((ListAudioFile) q.execute());

 for :

 audioFiles = (ListAudioFile) q.execute();

 I have get the following error :

 5 mai 2009 22:23:23
 com.google.appengine.tools.development.ApiProxyLocalImpl log
 SEVERE: [1241555003875000] javax.servlet.ServletContext log:
 Exception
 while dispatching incoming RPC call
 com.google.gwt.user.client.rpc.SerializationException: Type
 'org.datanucleus.store.appengine.query.StreamingQueryResult' was not
 included in the set of types which can be serialized by this
 SerializationPolicy or its Class object could not be loaded. For
 security purposes, this type will not be serialized.
         at
 com.google.gwt.user.server.rpc.impl.StandardSerializationPolicy.validateSer
 ialize
 (StandardSerializationPolicy.java:83)
         at

Re: Bar code scanner

2009-05-06 Thread gpike


Hi Hez,

  It's been my experience that most if not all scanners come with
either a hardware or software keyboard wedge. If it doesn't you may
want to look at the problem differently. Provide a software keyboard
wedge, what this will do is receive the input from RS-232 or USB and
emulate keyboard input for the platforms you want to support. Then
your GWT app doesn't have to worry about it. The one thing you may
need to account for is sometimes the input is wrapped in a beginning
and end character i.e. 1234 becomes *1234*.

Regards,

Gordon
http://devbright.com

On May 6, 9:35 am, hezjing hezj...@gmail.com wrote:
 Hi
 My customer is asking if my GWT application is able to accept input from the
 bar code scanner.

 I have not done anything with bar code scanner before this, but this is what
 I got from Google:
 A bar code scanner is typically comes with a keyboard wedge output or
 a RS232 output.

 I think there is no problem if using bar code scanner with keyboard wedge
 output,
 the scanner will input the string into the text field as if the user is
 typing it from the keyboard.

 The problem is when the customer is using bar code RS232 output, how do I
 populate the string into the text field?

 --

 Hez
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onResponseReceived - Functioning in hosted/IE Only

2009-05-06 Thread eb


Hey all,

I'm working on a simple GWT application, but for some reason I cannot
get my compiled version to function in FireFox or Opera.  It works
fine in IE/Hosted mode, meaning that it fetches the XML and displays
what it needs to on the screen.  In FireFox and Opera, the
onResponseRecieved never gets fired, albeit the URL is functional if I
paste it in a browser.  I'm done some searching, and the only thing
that came up was IE's interpretation vs. FireFox/Opera of same domain,
but since it is localhost talking to localhost, it shouldn't matter?
I'm assuming it has to be something with either the way the url is
handled in the RequestBuilder or something I'm missing.

I'm sure this is something trivial, and I would be most appreciative
if someone could point me in the right direction.  Here is the code
I'm working with - thanks again:

public static void getXml(String input, final VerticalPanel
nodePanel) {

String url = http://localhost/test.xml;;
RequestBuilder builder = new RequestBuilder(RequestBuilder.GET,
URL.encode(url));
try {
Request request = builder.sendRequest(null, new 
RequestCallback() {
public void onError(Request request, Throwable 
exception) {
   System.out.println(onError triggered.);
}
public void onResponseReceived(Request request, 
Response response)
{

Nodes[] toRender = 
parseString(response.getText());
renderView(toRender, nodePanel);
}
});
} catch (RequestException e) {
e.printStackTrace();
}
}

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How do I get gwt-user javadoc with GWT 1.6 Eclipse plugin?

2009-05-06 Thread Allen Holub


I've been trying the new 1.6 Eclipse plugin, but when I hit shift-F2
on a GWT class, no javadoc pops up. The message that *does* pop up
says that I should modify the properties page of the parent jar, but I
see no way to do that. Can somebody give me step-by-step directions
for hooking up Eclipse to the javadoc for gwt-user.jar?

Thanks.
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Re: InitialContext not supported!

2009-05-06 Thread zb


That's it. Thanks.

On May 6, 4:32 pm, Salvador Diaz diaz.salva...@gmail.com wrote:
 Remove the App Engine support from your project.

 Cheers,

 Salvador

 On May 6, 2:35 pm, zb zarkobodro...@gmail.com wrote:

  Recently, I have change my gwt working environment from Cypal to
  Google Plugin. Everything seems fine except compile error:
  'javax.naming.InitialContext is not supported by Google App Engine's
  Java runtime environment' in code line 'InitialContext ctx = new
  InitialContext();'.
  I use this to connect to EJB 3.0 middle layer.
  Does anyone have a solution?

  Best regards,
  Žarko Bodroški.
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Re: Eclipse Plugin Compile Button Stack Overflow

2009-05-06 Thread Sumit Chandel

Hi Denis,
If the command line workaround works for you, you can proceed to deploy your
GWT application to Google App Engine by invoking the uploader utility with
the command below:

..\appengine-java-sdk\bin\appcfg.cmd update war

The GWT compiler will generate output in a standard war structure, which you
can then directly deploy to Google App Engine to host your application. If
you're using the AppEngine SDK that came with the Eclipse plugin, you can
find it in the directory below:

\eclipse\plugins\com.google.appengine.eclipse.sdkbundle_1.2.0.v200904062334\appengine-java-sdk-1.2.0\bin

You can read more about deploying your application to Google App Engine at
the link below:

http://code.google.com/appengine/docs/java/gettingstarted/uploading.html

Hope that helps,
-Sumit Chandel

On Tue, May 5, 2009 at 6:10 AM, denis denis.at...@gmail.com wrote:

Thanks. I understand that I can avoid the button. I will try the
workaround with line mode.

As I said, my purpose is to export a GWT application to Google App
Engine.
GWT Eclipse plugin invokes the GWT compiler leading to the stack
overflow.

Denis

On 5 mai, 14:40, Miguel Méndez mmen...@google.com wrote:
We have a fix that allows you to specify the VM args for both the GWT
Compile toolbar action as well as the GWT Compilation that takes place
during deploy.
As a work around, you can invoke the GWT compiler manually, seehttp://
code.google.com/webtoolkit/doc/1.6/DevGuideCompilingAndDebuggi...,
and then deploy from the command line.

We should be pushing a plugin update very shortly.

On Tue, May 5, 2009 at 2:43 AM, denis denis.at...@gmail.com wrote:

I have the same issue.
With the regular compiler, I can avoid stack overflow error thanks to
-Xmx512m -Xms128m -Xss8M in the VM arguments box.

But, with GWT compiler, I have not found a way to set these arguments,
and the compiler is stopped with the stack overflow error.
Using GWT compiler is automated for App Engine deployment.

What shall I do?

Denis

On 30 avr, 18:06, Vitali Lovich vlov...@gmail.com wrote:
On Thu, Apr 30, 2009 at 10:25 AM, mounier.flor...@gmail.com

mounier.flor...@gmail.com wrote:

I'm waiting for it too and its starting to take time just for two
options...
Why does deploying force compilation (which fails so badly) ?

Because that's what deployment is? Maybe I'm not understanding your
question. Hosted mode (which runs the Java code in a JVM) is just
for
debugging. For deployment, you compile the Java code into actual
Javascript.

BTW what does it change to use GWT trunk ?

From what I could tell, not much. But there could be more unknown
bugs
whatnot. However, it should compile - according to the Google
developers,
they have other internal teams working against trunk.

I'm using it and I still have the issue... (and I can't deploy and
oophm doesn't have a compile button yet, fortunately i can compile
with ant)

So what's the issue? What do you mean you can't deploy? You just
said
you
can compile with ant. OOPHM should get the compile button eventually
- I
never found a particular need to use it. Just run your ant script.

On 23 avr, 15:59, Miguel Méndez mmen...@google.com wrote:
We've updated the compile UI to allow you to tweak the -Xss and
-Xmx
settings. It will be part of the upcoming point release of the
plugin.
In the meantime, the compile button in hosted mode is one work
around.
You
can also compile a version of the GWT trunk and have the plugin
use
that
SDK
for the project.

On Thu, Apr 23, 2009 at 3:51 AM, mihai007 mihai@gmail.com
wrote:

oh well add me to the list. this should have priority as it
turns
the
use of plugin useless if I can't compile
any workarounds?

On 8 Abr, 16:11, Brian hibr...@gmail.com wrote:
Just installed the Google plugin for Eclipse, and hit the
Compile
button on my project. It gave me astackoverflowerror.
Prior to using the plugin, I'd compile by hitting the Compile
button
in the hosted mode browser. In the Run/Debug Eclipse
configuration,
I
have -Xss4k -Xmx256M
Compiles worked fine with those flags and the Compile button
from
hosted mode.

How do I set the Xss flag for use by the Compile button in
the
eclipse
toolbar? I tried putting it in the Advanced section, but
this
just
informed me it wasn't an appropriate gwt compiler option.

This isn't stopping me from doing anything, as I can still
compile
from hosted mode, just curious how to set it up. I checked
the
plugin
faq, but couldn't find anything there.

--
Miguel

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You received this message

Re: How To add GWT component on request

2009-05-06 Thread Sumit Chandel

Hi wera,
If you have control over the button in the host page, you should probably
include it as part of the widgets in your GWT application to
programmatically add the GWT component you want to display when the button
is clicked from within your GWT code. You could potentially do something
like:

Button addGwtComponent = new Button(Add my widget!);
addGwtComponent.addClickHandler(new ClickHandler() {
  @Override
  public void onClick(ClickEvent event) {
RootPanel.get(gwcontainer).add(myGwtComponent);
  }
});

You can even take this further if you have control over whether the div is
necessarily in the first place, in which case you can just add
myGwtComponent to a panel that may have previously not displayed anything.

If you don't have control over elements in the page, you could expose an
initialization bridge method that would execute something similar to the
RootPanel.get(gwcontainer).add(myGwtComponent) mentioned above. Check out
the FAQ below for more details on how to expose a bridge method:

http://code.google.com/webtoolkit/doc/1.6/FAQ_Client.html#How_do_I_call_Java_methods_from_handwritten_JavaScript_or_third

Hope that helps,
-Sumit Chandel




On Sun, May 3, 2009 at 11:27 AM, wera svet...@gmail.com wrote:


 Hi,

 I've got HTML page that contains

  + some content
  + div
  + button

 A click on button should create Ajax request and on success add GWT
 component to Div (replace it with the content that returned from
 server).

 I thought that when I add includes of GWT scripts to DOM, it would
 reload a GWT component.
 But it doesn't work correctly. Is there another way to do it?


 thanks!


 


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Re: Unique identifier

2009-05-06 Thread Adligo


Hi,

  I would go with the HttpSession identifier, it should always be
unique (something like 1 in 1 billion chance it will duplicate over a
year).  Also if I was going to add a log to do it, I would use the
adligo i_log code (I'm partial I wrote it), but its already on in your
Servlet api so assumeing your calling a rpc mehod somewhere.

//something like...
myRPC() {
 super.getThreadLocalRequest().getSession().getId();
}

Cheers,
Scott

On May 6, 2:43 pm, Joakim Sjöberg joakim.sjob...@artificial-
solutions.com wrote:
 Hi!

 Seems good, but I still got the problem with the unique identifier, right?

 // Joakim

 -Original Message-
 From: Google-Web-Toolkit@googlegroups.com 
 [mailto:google-web-tool...@googlegroups.com] On Behalf Of Salvador Diaz
 Sent: Wednesday, May 06, 2009 4:46 PM
 To: Google Web Toolkit
 Subject: Re: Unique identifier

 You could use gwt-log:http://code.google.com/p/gwt-log/
 with a RemoteLogger

 Hope that helps,

 Salvador

 On May 6, 4:33 pm, Joakim Sjöberg joakim.sjob...@artificial-
 solutions.com wrote:
  Hi!

  Yes I know that, more or less what I want is some way to uniquely identify 
  every time a user
  goes into my page. When they do that I want to put that into a database 
  (for example time when they used
  my page) and in the end I want when they come to the end of my page (it's a 
  form page) record the time
  when they were finished. And for that I need to have a unique identifier 
  that I can use to update the
  database with.

  Hope this helps to explain more what I want.

  // Joakim

  -Original Message-
  From: Google-Web-Toolkit@googlegroups.com 
  [mailto:google-web-tool...@googlegroups.com] On Behalf Of Salvador Diaz
  Sent: Wednesday, May 06, 2009 4:16 PM
  To: Google Web Toolkit
  Subject: Re: Unique identifier

  What do you call a GWT instance ? Do you know that GWT applications
  are just HTML + js + servlets ? (servlets are the RPC implementations)

  On May 6, 12:53 pm, Joakim Sjöberg joakim.sjob...@artificial-
  solutions.com wrote:
   Hello!

   I am trying to build a function that stores data about each GWT instance 
   that is running in a database. Is there anyway
   way to get some sort of unique identifier from GWT in an easy way? I have 
   looked some at session handling, is that
   the right way to go? Should I use the RPC functionality for this?

   Joakim Sjöberg

   Technical Consultant
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Re: Using GWT to produce pure JavaScript libraries

2009-05-06 Thread subendu


Hi,

Thanks for the excellent and great looking widgets.

Can you add something like Window.confirm() to the list of available
components?

Rgds
Subendu

On May 6, 11:11 am, Manuel Carrasco manuel.carrasc...@gmail.com
wrote:
   I've released
 JsChismeshttp://code.google.com/p/gwtchismes/wiki/JsChismes_Documentationwhich
 is the result of exporting
 gwtchismes http://code.google.com/p/gwtchismes library code in order to
 populate its classes and methods into native javascript.
 The goal of this port is that the set of widgets can now be used directly in
 html pages without the need of knowing anything about gwt and java. So
 non-java developers (ruby, php ..) and designers can use the library in
 their pages with a little effort.

 I see several advantages in using GWT to produce javascript libraries:  IDE,
 re-factoring, name-spaces, reusing code, debugging, testing, coverage tools,
 obfuscate, optimize, browser compatibility  etc. and this technique is
 easier since Ray Cromwell's
 gwt-exporthttp://code.google.com/p/gwt-exporter/library makes it
 pretty simple.

 Manolo Carrasco

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Intergrating other GWT projects in eclipse

2009-05-06 Thread Donald.W.Long


Hi all,

I need a bit of help with the following.

I am using the latest 1.6. GWT tools.

I created a java project and created a new widget.  I then exported
the widget via eclipse to a jar file.  At this point I then created a
full GWT project and attempted to use the jar file in the project.

I can not figure out how to use this jar file in my eclipse GWT
project.  I can make it an external jar file for eclipse and the
eclipse env is happy.  When I try to run the application from eclipse
I get all sorts of errors.

I added an inherits in the xml file for the jar file and also added
the jar file to the run classpath.

When I launched the program I always get that it can not find the jar
file.

How do you use a jar file from another project in a GWT 1.6 project.

NOTE: I even tried moving the jar file to the war\WEB-INF\lib and this
did not work.

HELP HELP

Thanks Donald W. Long

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Re: Intergrating other GWT projects in eclipse

2009-05-06 Thread sim123


If I am understanding your problem correctly, you are trying to
inherit a module.

This is what I did to inherit another module, when both projects are
in my eclipse environment :

Go to Project Properties  Java Build Path  Libraries  Add External
Class Folder  Add source folder of your widget project.

You could Add the widget project to refer the classes instead of
creating and using a jar file.

I hope it helps.


On May 6, 5:41 pm, Donald.W.Long donald.w.l...@thelongsfamily.com
wrote:
 Hi all,

 I need a bit of help with the following.

 I am using the latest 1.6. GWT tools.

 I created a java project and created a new widget.  I then exported
 the widget via eclipse to a jar file.  At this point I then created a
 full GWT project and attempted to use the jar file in the project.

 I can not figure out how to use this jar file in my eclipse GWT
 project.  I can make it an external jar file for eclipse and the
 eclipse env is happy.  When I try to run the application from eclipse
 I get all sorts of errors.

 I added an inherits in the xml file for the jar file and also added
 the jar file to the run classpath.

 When I launched the program I always get that it can not find the jar
 file.

 How do you use a jar file from another project in a GWT 1.6 project.

 NOTE: I even tried moving the jar file to the war\WEB-INF\lib and this
 did not work.

 HELP HELP

 Thanks Donald W. Long
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How to load the Application again along with destroying the thread on cancel button press event?

2009-05-06 Thread mishal


Hi Sir,
I m newbei for this forum.
I have just strated learing GWT.
I have 1 java application which is running at the Backend side in
Different No. of threads.
While i am going to put my GWT application in running state and try to
cancel the process,my application at the Backend side is not going to
be stopped ,becoz it has its own seperate threads and there is no
control at the GWT RPC side to stop it even though i have used the
threads destroy and stop methods.At last it is giving exception for
the Thread destroy and stop method.

Hoping that i have explained it properly and whom so ever reading this
is getting,
Can any body help me out from this problem and give some solution?

please provide any valuable code snippet which can destroy the backend
running threads and GWT can get back its control to the application
load module part.

Please provide any links or code...
Thanking with you an anticipation in advance.

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Re: GWTCanvas, in a nested Grid == buggy shifts in x-coordinates in IE7. Workarounds?

2009-05-06 Thread John Gunther


I filed an issue with the GWT incubator project that reproduces this
problem with a much simpler chunk of code (all you need is a single
grid, no nesting required) than where I initially found it in the more
complicated code:

http://code.google.com/p/google-web-toolkit-incubator/issues/detail?id=275

Pretty sure it's a GWTCanvas bug. In the issue above I provide code to
reproduce it and a workaround.

John

On May 6, 12:43 am, John Gunther johncurtisgunt...@yahoo.com wrote:
 I'm using a GWTCanvas widget inside of div inside of...inside of a
 Grid widget inside of another Grid widget inside of...etc.

 It all works just fine in Firefox.

 But in IE7 I'm finding that, unless I left-align the innermost Grid
 cell, the x-coordinates are getting mangled, shifting the stuff drawn
 inside the canvas (in this case, they are pie slices, but I have also
 seen it with rectangles in an earlier test with somewhat less
 nesting...but still with those same two nested Grids) along x
 inappropriately.

 Oddly, the canvas itself is positioned correctly, it is as if the
 drawn elements within it are dragged to the right-in some cases (right-
 aligned) entirely off the canvas, in others
 (center-aligned) seems about half-way.

 I'm seeing this within a complex nested DOM structure, have not yet
 tested if any old Grid cell would produce this problem.

 Other, similar, stuff, not nested in a Grid (but nested in divs only)
 renders just fine in both FF and IE,

 The outer Grid is hidden and the inner is visible, which is kind of an
 unusual combination and thus could have something to do with it,
 perhaps?

 Has anyone seen anything like this before? Any workarounds (nothing
 I've tried so far to beat this has worked).

 John
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Re: Calling a different HTML page

2009-05-06 Thread Vishesh

I implemented a much easier way of defining which default module to use
while loading or compiling. Create a completely new .html .css file pointing
to your other module and you can edit the eclipse .launch file by changing
the line

code
stringAttribute key=org.eclipse.jdt.launching.PROGRAM_ARGUMENTS
value=-out www GWTApp/GWTApp.html/
/code

to the new .html file which loads the other module in the same project.

code
stringAttribute key=org.eclipse.jdt.launching.PROGRAM_ARGUMENTS
value=-out www GWTAppNew/GWTAppNew.html/
/code

Keep in mind to edit the new .html file and point it to the new module in
the src value.
code
  script type=text/javascript language=javascript
src=GWTAppNew.nocache.js/script
/code

I implemented it and it works like a charm. I even have the second module
called from the first module using a link. The only complex part comes while
deploying, when you will have to compile both the modules separately and
keep it in one war file (if deployed on tomcat).
Hope this helps... Let me know if you need more help on it, but I recommend
you first experiment it yourself.
Vishesh..

On Wed, May 6, 2009 at 10:38 AM, Salvador Diaz diaz.salva...@gmail.comwrote:


 Google Web Toolkit 1.6.4
 HostedMode [-noserver] [-port port-number | auto] [-whitelist
 whitelist-string] [-blacklist blacklist-string] [-logLevel level] [-
 gen dir] [-style style] [-ea] [-server servletContainerLauncher] [-
 startupUrl url] [-war dir] [-extra dir] [-workDir dir] [-localWorkers
 count] module[s]

 where
  -noserver  Prevents the embedded web server from running
  -port  Specifies the TCP port for the embedded web server
 (defaults to )
  -whitelist Allows the user to browse URLs that match the
 specified regexes (comma or space separated)
  -blacklist Prevents the user browsing URLs that match the
 specified regexes (comma or space separated)
  -logLevel  The level of logging detail: ERROR, WARN, INFO,
 TRACE, DEBUG, SPAM, or ALL
  -gen   The directory into which generated files will be
 written for review
  -style Script output style: OBF[USCATED], PRETTY, or
 DETAILED (defaults to OBF)
  -eaDebugging: causes the compiled output to check assert
 statements.
  -serverSpecifies a different embedded web server to run
 (must implement ServletContainerLauncher)
  -startupUrlAutomatically launches the specified URL
  -war   The war directory to write output files into
 (defaults to war)
  -extra The directory into which extra, non-deployed files
 will be written
  -workDir   The compiler work directory (must be writeable;
 defaults to a system temp dir)
  -localWorkers  Specifies the number of local workers to use when
 compiling permutations
 and
  module[s]  Specifies the name(s) of the module(s) to host

 On May 6, 3:02 pm, harjit.singh harjit.si...@content-studios.com
 wrote:
  Thanks for the answer. When I have multiple modules and try to run the
  application. The GWT webserver asks me to choose a module to run. Is
  there any way to specify a default module to run when you have more
  than one module ?
 
  Thanks
 
  - Harjit
 
  On May 5, 8:20 pm, Vishesh visheshs...@gmail.com wrote:
 
   Try the code between the tags:
   code
   String lnk = GWT.getModuleBaseURL() + newPage.html?Parameter1= +
   parameter1 Parameter2= + parameter2;
   Window.open(lnk,New Window,);
   /code
   It will open a new window which can be a different module with its onw
   onModuleLoad() within the same project.
   Hope this helps..
   Vish..
 
   On Tue, May 5, 2009 at 6:26 PM, harjit.singh 
 
   harjit.si...@content-studios.com wrote:
 
Sumit,
 
Thanks for the response. I did the way you described it using JSP.
 
I have one more question on the same lines. how can I call another
module from a link ?
 
Thanks
 
- Harjit
 
On May 5, 2:53 pm, Sumit Chandel sumitchan...@google.com wrote:
 Hi Harjit,
 
 Assuming that you really need these windows to be actual native
 browser
 windows (and not simply popup panels, in which case you could use
 the
 PopupPanel class), and further assuming that the HTML in the new
 windows
 will need to be populated with some data from the server-side, here
 is a
 proposed solution.
 
 Let's say you want to have some link-styled text that can be
 clicked to
 create the new window. You could do this by creating an HTML
 snippet and
 adding a click handler to it. You would also need to style the HTML
snippet
 to make it look like a link.
 
 In the click handler, you could make a callback to your server-side
 that
 could read in whatever data is passed in the call and generate an
 HTML
page
 that will be served in the new window. Once the RPC completes, you
 can
 create a new window sourced to the generated HTML page in the
 onSuccess()
 method.
 
 Alternatively, you could pre-generated these pages in timed
 background

Eclipse Plugin of GWT ORM

2009-05-06 Thread Jim


Dreamsource ORM has been used in three major applications for over
three years. It solves the following problems:
1. Whatever you codes happens in database. No merge
2. No detached enhanced object.
3. No lazy loading. Just eager loading because you can expect whatever
you want during coding.
4. Easy to learn and use because it just mirrors SQL statements.
5. High performance compared to Hibernate
6. High productivity compared to Hibernate.
7. It can be used in GWT and any other frameworks without third party
libraries.
8. It provides most demanding features in a small library.
9. It provides more flexible query feature than JPA 2.0.
10. Eclipse plugin to generate ORM code is available from
http://www.gwtorm.com/products.jsp. Ten minutes evaluation will make
big difference.


You can find Spring and GWT examples from http://www.gwtorm.com/examples.jsp.



Any feedback is appreciated.
Jim Xie
http://www.gwtorm.com
http://code.google.com/p/dreamsource-orm/
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Re: horizontal and vertical flow panels

2009-05-06 Thread Adam T


Sudhir - why not post this idea to the GWT contributors forum as well
- you might get some detailed answers/comments from there (http://
groups.google.se/group/Google-Web-Toolkit-Contributors).

//Adam

On 6 Maj, 18:56, Sudhir sudhi...@gmail.com wrote:
 I've made horizontal and vertical flow panels and put them up here:

 http://blog.sudhirj.com/2009/05/vertical-and-horizontal-flow-panels-i...

 Any idea why something like this isn't in GWT in the first place? It
 would be useful... The tables implementation seems very messy.

 Sudhir Jonathan
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SCRIPT elem to read JSON src does not work

2009-05-06 Thread Blessed Geek


There is a nice article on JSON over GWT. (Or is it GWT over JSON)
http://code.google.com/support/bin/answer.py?answer=65632topic=11368

I don't understand the reason for callbacks to get JSON data as I
could just code a RESTful URL for src. Therefore, I simply use the
script tag:
script src=json source from one of my servers/

But that is not the point. The point is the script element inserter
codes shown in the article do not work.

The article proposes two ways to insert a script element in GWT.

Method 1:

public void addScript_(String url)
{
Element e = DOM.createElement(script);
DOM.setAttribute(e, language, JavaScript);
DOM.setAttribute(e, src, url);
DOM.appendChild(RootPanel.get().getElement(), e);
}


Method 2:

public static native void addScript(String url)
/*-{
var scr = document.createElement(script);
scr.setAttribute(language, JavaScript);
scr.setAttribute(src, url);
document.getElementsByTagName(body)[0].appendChild(scr);
}-*/;


Method 1 uses GWT API while Method 2 uses native access.
(I am still wondering what's native about javascript. I think it's
because it's the only code escape directive allowed by java compiler).

Anyway, the article says Method 1 would not work due to GWT generated
code sitting in another iframe. Actually, Method 1 works only on
Microsoft IE. It fails on Firefox, Chrome  Safari.

While Method 2 - the solution to relocate the json data to the proper
window - does not work at all in any of the four browser brands.

On GWT Eclipse hosted browser, method 1 (the supposed flawed method)
works perfectly while method 2 (the supposed solution) does not work
at all.

Could someone advise how to properly insert a script element in GWT
for the document to read RESTful json data? At least explain the
possibilities why the methods worked/did not worked. Would be very
much appreciated.

I could know when it does not work because at the end of the json
data, I have

alert(jsondatasrc.member);



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Attach a widget to an element

2009-05-06 Thread David Terei


I have a project using GWT which integrates with existing HTML. I want
to be able to place widgets into the page by retrieving HTML elements
with specific ID's and inserting the widget as a child.

In 1.5 I just used:

RootPanel.get(id).add(widget);

However I found as many people did once upgrading to 1.6 that this
isn't a good way as nested elements cause problems. So I'm trying to
figure out how this should be done. Simple DOM manipulation gets the
widget in the right place and displaying properly but doesn't setup
any of its event handlers properly.

I have two solutions at the moment, although neither are ideal:

Solution 1:
Add the widget to the root panel and then moves it via DOM
manipulation to be a child of its hook element.

RootPanel.get().add(widget);
widget.getElement().getParentElement().removeChild(widget.getElement
());
DOM.getElementById(id).appendChild(widget.getElement());

Solution 2:
Attach via DOM, fix events by calling onAttach via proxy class to get
around onAttach being protected.

DOM.getElementById(id).appendChild(w.getElement());
WidgetUtils.WidgetOnAttach(w);

WidgetUtils Class:

package com.google.gwt.user.client.ui;
public class WidgetUtils {
public static void WidgetOnAttach(Widget w) {
w.onAttach();
}
}

Both these methods seem to work fine, have tried both by converting
all my old 1.5 RootPanel.get(id).add(widget) calls to both of these
methods under 1.6 and all tests have passed. However, both are
somewhat of a hack and I seeing if there is a better way.

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[gwt-contrib] Re: I've implemented Java stack trace support for web mode

2009-05-06 Thread Alex Epshteyn


Hi Joel, thanks for the pointer!  StackTraceCreator looks pretty cool,
but I don't think there's any overlap with my work.

If I understand correctly, when you're running code compiled with OBF
it would give you a trace with elements like abc(), def(), ghi().

Here is what you get with my framework (actual output from an
exception in an OBF'd app in running in web mode):

java.lang.IllegalStateException: Should not reach this point
StackTesterWidget.thirdMethod(StackTesterWidget.java:39)
StackTesterWidget.secondMethod(StackTesterWidget.java:35)
StackTesterWidget.firstMethod(StackTesterWidget.java:31)
.onClick(StackTesterWidget.java:23)

In my case this information doesn't come from the
FF-Opera-etc-specific exception support.  It's maintained separately
from the browser.

Alex


On Tue, May 5, 2009 at 11:39 PM, Joel Webber j...@google.com wrote:
 Alex,
 Do check out com.google.gwt.core.client.impl.StackTraceCreator (in trunk).
 If I'm understanding your proposal correctly, there may be a great deal of
 overlap there.
 Cheers,
 joel.

 On Tue, May 5, 2009 at 6:47 PM, Alex Epshteyn alexander.epsht...@gmail.com
 wrote:

  Are there any new developments on this front in the core GWT code?

 The reason I ask is to be sure that I'm not duplicating your efforts
 and wasting my time.

 On Tue, May 5, 2009 at 4:31 PM, Alex Epshteyn
 alexander.epsht...@gmail.com wrote:
  I have a working implementation which produces stack traces
  representing the original Jave source code when Javascript exceptions
  occur in web mode.   I plan to deploy this in production on my site,
  typeracer.com in my next release.
 
  I'd like to polish up my implementation over the next few weeks,
  measure performance, and present it at Google I/O at the end of the
  month.
 
  We've talked about adding similar features to the GWT compiler in the
  past on this forum, but my site couldn't wait (I was getting too many
  cryptic exceptions logged from users), so I decided to go ahead and do
  it my way.  I ended up doing it externally to GWT, without any changes
  to the GWT compiler or any other code.
 
  Are there any new developments on this front in the core GWT code?




 


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[gwt-contrib] Re: Add name to Anchor tag using GWT Anchor widget