date:20101203

That's the exact use case for FilteredActivityMapper and
CachingActivityMapper (and how they're used AFAICT in scaffold
applications generated by String Roo for the master activities).

Thanks for the confirmation, Thomas. I felt like it was a bit cumbersome to
use, but it makes more sense as a consistent way to get that behavior in
generated code (which is unfortunate, but it is what it is).

what about situations where a display region is master in some cases
(requiring to be cached), and
detail in other cases ?

for example, when we have West, Center, and East Regions,
Center region can act as Detail for West Region in some use cases,
but in other use cases, be used as Master for East Region.

I can think of two approaches, depending on the specificity of the places.

1. Use an activity mapper for the center region but not the east region.
This would be appropriate if the center region shows the item of interest
and the east region contains some contextual detail that isn't worthy of
being encoded into a place.

2. Have both the center and east regions react to the same place where,
unlike option 1, the place contains enough context for both regions. The
east region would use that extra detail to display something specific about
the item of interest while the center region can ignore it if it doesn't
affect what's displayed.

I'm sure there are more ways to approach it. Just keep in mind that activity
mappers are for mapping places to activities. Once you decide how granular
you want your places to be, that will help determine the best use of
activity mappers.

what happens if we use CachingActivityMapper for ALL of our
ActivityMappers ?
would there be a performance problem, what are the implications,
benefits or drawbacks ?

CachingActivityMapper caches the last activity it returned, to be re-used
if we see the same place twice (
http://google-web-toolkit.googlecode.com/svn/javadoc/2.1/com/google/gwt/activity/shared/CachingActivityMapper.html).
If your concern is memory, there should be little to no overhead when using
a CachingActivityMapper. As for performance, the goal of
CachingActivityMapper is to avoid initializing a new activity (and
potentially fetching data from the server, doing client-side processing,
etc.) when the current activity already represents the requested place. I
can't think of any downside to using CachingActivityMapper... as long as the
wrapped activity mapper and the places it uses are implemented as advised
(be sure to properly implement equals() and hashCode() for your places).

-Brian

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Re: To smart GWT or not

2010-12-03 Thread Jaroslav Záruba

+1 for pure GWT 2.1

I have rather unpleasant experience with SmartGWT, but that was 1yr
ago and maybe things have changed.

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Re: AXIS2 WITH ECLIPSE AND GWT PLUGIN

2010-12-03 Thread v b

Look for adding a server in eclipse.

On Dec 3, 1:32 pm, bond daniele.re...@gmail.com wrote:
 Hi guys,
 I've a big problem. I've a gwt project with Eclipse Helios + gwt 2.1
 and gwt plugin 3.6. So my project is NOT a web project and when I run
 it Eclipse uses Jetty to deploy it.

 Now I've to creare some web services with axis 2 in order to publish
 them in my project. The web service wizard can't create my service
 because it wants a web project with Tomcat.

 There is some solutions to my problem?

 Thanks very much

 Best regards

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gwt website very slooowwww

2010-12-03 Thread cri

I know this is a little off topic, but has anyone noticed that the gwt
website is very slow the last few days. Hopefully, they know about it
and are working on the fix. Sometimes I have to wait literally minutes
for a gwt forumn search to complete, for example. Also, I just clicked
on a forum article link and it took a few minutes to come up in a page.

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gwt-maven-plugin 1.3.2.google NoInitialContextException

2010-12-03 Thread ultrafil

Hi,

I need to uses jndi to connected my apps with my postgresql database.

My jndi conf is ok on external tomcat server. (codemvn install/
code - and running tomcat is ok)

But, in dev mode, codemvn gwt:run/code i the following error:
codeCaused by: javax.naming.NoInitialContextException: Need to
specify class name in environment or system property, or as an applet
parameter, or in an application resource file:
java.naming.factory.initial/code

I put the jetty-env.xml in the WEB-INF folder.

Seeing my gwt-maven-pligin config :

codeplugin
groupIdorg.codehaus.mojo/groupId
artifactIdgwt-maven-plugin/artifactId
version1.3.2.google/version
configuration
gwtVersion${gwt.version}/gwtVersion

modulefr.grouperatp.ratp.applications.accessio.Application/
module

runTargetfr.grouperatp.ratp.applications.accessio.Application/
Application.html/runTarget

webXmlsrc/main/webapp/WEB-INF/web.xml/webXml

jettyEnvXmlsrc/main/webapp/WEB-INF/jetty-env.xml/jettyEnvXml
copyWebapptrue/copyWebapp
soycfalse/soyc
/configuration
executions
execution
goals
goalcompile/goal
goaltest/goal
/goals
/execution
/executions
/plugin
/code

I trying to added this -
Djava.naming.factory.initial=org.mortbay.naming.InitialContextFactory
on argument in run configuration but i have the same error log.

How can i solved my problem ?

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Re: AXIS2 WITH ECLIPSE AND GWT PLUGIN

2010-12-03 Thread bond

Hi,
thanks for your reply.
I created an Tomcat 6.20 server but how I can add it to my project? I
remember you that my project is a GWT Web Application Project
created with Gwt Plugin for Eclipse.

Can you send me a link of a tutorial?

Thanks very much

Regards

Daniele

On 3 Dic, 14:53, v b vnb1...@gmail.com wrote:
 Look for adding a server in eclipse.

 On Dec 3, 1:32 pm, bond daniele.re...@gmail.com wrote:

  Hi guys,
  I've a big problem. I've a gwt project with Eclipse Helios + gwt 2.1
  and gwt plugin 3.6. So my project is NOT a web project and when I run
  it Eclipse uses Jetty to deploy it.

  Now I've to creare some web services with axis 2 in order to publish
  them in my project. The web service wizard can't create my service
  because it wants a web project with Tomcat.

  There is some solutions to my problem?

  Thanks very much

  Best regards

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MySQL Error

2010-12-03 Thread du.hahn

Hi,

I'm using GWT + Mysql in my project and I get this error when running
in Eclipse:

[ERROR] javax.servlet.ServletContext log: Exception while dispatching
incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract java.lang.String
com.globalmind.gwt.dbmind.client.GreetingService.greetServer(java.lang.String,java.lang.String)'
threw an unexpected exception: java.lang.NoClassDefFoundError:
com.mysql.jdbc.Driver is a restricted class. Please see the Google
App Engine developer's guide for more details.
at
com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:
378)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
581)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
207)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:
243)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:
62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
511)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1166)
at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
58)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
43)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:
122)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
388)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
418)
at
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:
70)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at com.google.appengine.tools.development.JettyContainerService
$ApiProxyHandler.handle(JettyContainerService.java:349)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
542)
at org.mortbay.jetty.HttpConnection
$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
409)
at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.lang.NoClassDefFoundError: com.mysql.jdbc.Driver is a
restricted class. Please see the Google  App Engine developer's guide
for more details.
at
com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:
51)
at com.mysql.jdbc.Driver.clinit(Driver.java:65)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at
com.globalmind.gwt.dbmind.server.GreetingServiceImpl.conecta(GreetingServiceImpl.java:
24)
at
com.globalmind.gwt.dbmind.server.GreetingServiceImpl.greetServer(GreetingServiceImpl.java:
15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
43)
at java.lang.reflect.Method.invoke(Method.java:616)
at
com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:
100)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
562)
... 30 more

My code is (on the server side):

private void conecta(){
String driver = com.mysql.jdbc.Driver;
Connection con = null;

try {
Class.forName(driver).newInstance();
} catch (InstantiationException e) {
// TODO Auto-generated catch block

ClassCastException in client deserialization of JPA annotated entities

2010-12-03 Thread cfillol

I'm using GWT 2.1 in hosted mode.

The following GWT-RPC service that returns JPA annotated objects that
are NOT connected to database, produces a deserialization error in the
client side.

public TipoCable findTestTipoCable() {
TipoCable tp = new TipoCable();
tp.setId((long)1);
tp.setDescrip(Hola);

DesignacionCable dc = new DesignacionCable();
dc.setDescrip(sadfad);
dc.setTipoCable(tp);

tp.getDesignacionCables().add(dc);

return tp;
}

The object returned by the server is serialized with no errors, but
the client produces an error when tries to deserialize it.
If I remove JPA annotations from the entity classes, the
deserialization goes right.
Is this a bug?


I have observed that the the serialized string returned in each case
are slighty different:

The one from JPA annotated objects that produces the deserialization
error:
//OK['B',6,0,0,3,0,1,0,5,4,1,3,2,1,
[es.excentia.esco.data.model.TipoCable/
95382644,Hola,java.util.HashSet/
1594477813,es.excentia.esco.data.model.DesignacionCable/
3990987763,sadfad,java.lang.Long/4227064769],0,6]

The one from the same objects without JPA annotations, that works ok.
//OK['B',6,-1,0,5,4,1,3,2,1,
[es.excentia.esco.data.model.test.TipoCable/
4254737913,Hola,java.util.HashSet/
1594477813,es.excentia.esco.data.model.test.DesignacionCable/
1472385747,sadfad,java.lang.Long/4227064769],0,6]


Here is the error that is generated when deserializing in the client
side.

java.lang.ClassCastException: es.excentia.esco.data.model.TipoCable
cannot be cast to java.lang.Long
at
es.excentia.esco.data.model.DesignacionCable_FieldSerializer.deserialize(DesignacionCable_FieldSerializer.java:
51)
at es.excentia.esco.data.model.DesignacionCable_FieldSerializer
$Handler.deserialize(DesignacionCable_FieldSerializer.java:11)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:
91)
at
com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:
108)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:
119)
at
es.excentia.esco.data.dto.Page_FieldSerializer.deserialize(Page_FieldSerializer.java:
65)
at es.excentia.esco.data.dto.Page_FieldSerializer
$Handler.deserialize(Page_FieldSerializer.java:11)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:
91)
at
com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:
108)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:
119)
at
es.excentia.esco.data.model.TipoCable_FieldSerializer.deserialize(TipoCable_FieldSerializer.java:
51)
at es.excentia.esco.data.model.TipoCable_FieldSerializer
$Handler.deserialize(TipoCable_FieldSerializer.java:11)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:
91)
at
com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:
108)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:
119)
at
com.google.gwt.user.client.rpc.core.java.util.Collection_CustomFieldSerializerBase.deserialize(Collection_CustomFieldSerializerBase.java:
34)
at
com.google.gwt.user.client.rpc.core.java.util.ArrayList_CustomFieldSerializer.deserialize(ArrayList_CustomFieldSerializer.java:
32)
at
com.google.gwt.user.client.rpc.core.java.util.ArrayList_FieldSerializer
$Handler.deserialize(ArrayList_FieldSerializer.java:11)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:
91)
at
com.google.gwt.user.client.rpc.impl.ClientSerializationStreamReader.deserialize(ClientSerializationStreamReader.java:
108)
at
com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamReader.readObject(AbstractSerializationStreamReader.java:
119)
at
es.excentia.esco.data.dto.Page_FieldSerializer.deserialize(Page_FieldSerializer.java:
65)
at es.excentia.esco.data.dto.Page_FieldSerializer
$Handler.deserialize(Page_FieldSerializer.java:11)
at
com.google.gwt.user.client.rpc.impl.SerializerBase.deserialize(SerializerBase.java:
91)


Here are the contents of the related returned classes:

@Entity
@Table(name=tipo_cable
,schema=public
)
public class TipoCable  implements java.io.Serializable,
IsSerializable {

private static final long serialVersionUID = 1L;

private Long id;
private String descrip;
private SetDesignacionCable designacionCables = new
HashSetDesignacionCable(0);

/** default

Re: gwt2.1 Expense example--eclipse reported error to @Proxyfor

2010-12-03 Thread Charms Styler

Hi could you explain which version of eclipse your using?? And your
project config, like is it a maven project??

On Nov 11, 6:44 pm, Sun gsun...@gmail.com wrote:
 hi all:
     After downloading the project i mentioned above from gwt2.1 trunk,
 there are some errors in my eclipse project:

 @ProxyFor(com.google.gwt.sample.expenses.server.domain.Employee.class)
 public interface EmployeeProxy extends EntityProxy {
 

 }

 eclipse said:
 com.google.gwt.sample.expenses.server.domain.Employee can not be found
 in source packages. Check the inheritance chain from your module; it
 may not be inheriting a required module or a module may not be adding
 its source path entries properly.

 that's not right, because Employee is located at server package. so
 how can i get rid of this error message?

 by the way, the class comments said:
 /**
  * API Generated DTO interface based on
  * {...@link com.google.gwt.sample.expenses.server.domain.Employee}.
  * p
  * IRL this class will be generated by a JPA-savvy tool run before
 compilation.
  */
 what's JPA-savvy tool? where can i find it?

 many thanks.

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How to install GWT Designer

2010-12-03 Thread Basi Lambanog

Hello,
I'm trying to install GWT Designer onto Eclipse 3.6. The instruction
says

In Eclipse, click Help  Install New Software...

but there is no Help option on the Eclipse menu.

How else can I install GWT Designer?

Thanks,.

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Re: onResize issue with IE 7

2010-12-03 Thread mayumi

Could you please explain more in details on your workaround?
I am having same problem with IE 7.

Thanks.

On Dec 2, 10:19 am, Magnus alpineblas...@googlemail.com wrote:
 Hi,

 I found a problem with onResize on IE 7:

 My panel receives an onResize, but at this point, getOffset[Width|
 Height] returns the old window size, not the new size.

 I am currently using a workaround like this:
 Within onResize I schedule a deferred command, which does the resize
 actions later, when the new window size is returned by getOffset[Width|
 Height].

 This workaround is not nice, since I cannot hide it in some base
 class, but have to deal with in every derived class. In every onResize
 method I cannot rely on getOffset[Width|Height], so I always have to
 do the deferred stuff within the derived classes.

 Is this a known issue and can I expect a solution in the near future?
 Or is there a better workaround?

 Thank you very much!
 Magnus

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In Eclipse Helios plug in problem

2010-12-03 Thread abhishek

Hello,

I'm having a really tough time today. I upgraded my eclipse 3.6 GWT
Plug in at the update site . Almost 36% update the GWT Plug-in after
that i got error show the below

An error occurred while collecting items to be installed
session context was:(profile=epp.package.jee,
phase=org.eclipse.equinox.internal.p2.engine.phases.Collect, operand=,
action=).
Unable to read repository at
http://dl.google.com/eclipse/plugin/3.6/plugins/com.google.appengine.eclipse.sdkbundle.1.3.8_1.3.8.v201010161055.jar.
Read timed out
Unable to read repository at
http://dl.google.com/eclipse/plugin/3.6/plugins/com.google.gwt.eclipse.sdkbundle.2.1.0_2.1.0.v201010280102.jar.
Read timed out

Please tell me what is the problem regarding gwt plug-in update.

Regards
Abhishek Maheshwari

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GWT IE 7 Window Resizing Bug

2010-12-03 Thread mayumi

For a GWT project I am working on, I having trouble fixing a weird IE
7 bug having to do with window resizing.
Basically, when I re-size the window and change the history token(load
the different section of the app) center of the app stops resizing, so
sort of like becoming fixed positioning.

Center of the app is styled with  g:LayoutPanel with g:Layer as
child element.
There is no custom styling for this section of the page.
So basically when you re-size the window and re-size it back to full
screen, window does re-sizes but not the app (app is weirdly fixed in
the previously re-sized position)

Does anyone know how to fix this issue?

Thanks

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NetBeans GWT and JUNIT

2010-12-03 Thread darkling

I'm trying to debug my Junit test case because its throwing tons of
errors. However when I try to debug it instead of being able to run
it, it tells me

The test class 'com.baa.client.BaseDynamicFormTest' was not found in
module 'com.baa.AccountView'; no compilation unit for that type was
seen
com.google.gwt.junit.JUnitFatalLaunchException: The test class
'com.baa.client.BaseDynamicFormTest' was not found in module
'com.baa.AccountView'; no compilation unit for that type was seen
at
com.google.gwt.junit.JUnitShell.checkTestClassInCurrentModule(JUnitShell.java:
605)
at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:
1189)
at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:
1152)
at com.google.gwt.junit.JUnitShell.runTest(JUnitShell.java:
541)
at
com.google.gwt.junit.client.GWTTestCase.runTest(GWTTestCase.java:406)
at
com.google.gwt.junit.client.GWTTestCase.run(GWTTestCase.java:282)


So now rather than debugging the errors that are caused when I run the
test, I'm trying to debug the errors that only appear when I debug the
test!

I've seen lots of posts on this basic topic but they've all been
Eclipse based and I'm not sure how to translate it for Netbeans. I'm
using the GWT netbeans plugin and my test classes live in the test
directory not the src directory.
This is my module file:

?xml version=1.0 encoding=UTF-8?
!DOCTYPE module PUBLIC -//Google Inc.//DTD Google Web Toolkit 2.0.0//
EN http://google-web-toolkit.googlecode.com/svn/tags/2.0.0/distro-
source/core/src/gwt-module.dtd
module
  !-- Inherit the core Web Toolkit stuff.--
  inherits name=com.google.gwt.user.User/
  inherits name=com.smartgwt.SmartGwt/

  !-- TODO: remove from production --
  !-- provides access to SmartGWT console for debugging, to start
console enter javascript:isc.showConsole() in browser URL --
  inherits name=com.smartgwt.tools.SmartGwtTools/

  !-- SmartGWT skin that we modify --
  !-- TODO: determine if we can rename this --
  inherits name=com.smartclient.theme.silverwave.SilverWave/
  !--inherits name=com.smartgwt.SmartGwtNoTheme/--

  !-- TODO: remove from production --
  !-- For development, only compile one permutation to save time --
  !-- Possible user.agent settings: ie6,ie8, gecko, gecko1_8(FireFox
2), safari, opera --
  !--set-property name=user.agent value=ie8/--
  set-property name=user.agent value=gecko1_8/
inherits name=com.google.gwt.junit.JUnit/
   !-- Include client-side source we might like to test --
   source path=client/
   !-- Include client-side source for the test cases --
   source path=test/
  !-- Specify the app entry point class. --
  entry-point class=com.baa.client.WebAppEntryPoint/
/module


I'm trying to include the test sources in the module but I'm not sure
if I did it right. Can anyone help me?
Thanks

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Re: Form element values not binding in custom input cell (using AbstractInputCell)

AbstractInputCell is intended to be wrap a single input element, not an
entire form.  Specifically, you need to override getInputElement(parent) to
dig into the DOM and get the input element that you are wrapping.  By
default, getInputElement(parent) gets the first child of the parent,
assuming that the cell renders a single input element and nothing else.
 Still, even if you override getInputElement, you'll only be able to return
one value.

What you really need to do is create a new AbstractEditableCell.  In
onBrowserEvent, catch the change event and dig down to all of the input
elements in the form, updating the DTO as needed.

Thanks,
John LaBanca
jlaba...@google.com


On Fri, Dec 3, 2010 at 9:23 AM, sevendays fux...@gmail.com wrote:

 I have created a CellBrowser where each cell is a custom HTML
 component that features a few different HTML form components (e.g.
 age, feeling etc.).

 The form displays fine, however, I can't get the value entered in the
 form into the client-side code. The relevant element in the DOM
 doesn't have the 'value' attribute set properly.

 I have tried a few things, including:

 1) Getting the element from the DOM object using
 dom.getElementById(ELEMENT_AGE_ID), this returns an entity but value
 is null, even though I had just entered a value into this element.

 2) Recursively looping round the DOM node tree, and printing it out to
 the console (printElementTree()) - again I can see the element but the
 value is null (after entering a value).


 What am I not doing correctly? How can I get the value attribute to
 update on the element in the DOM? Once it has been updated, how do I
 get the values from the elements with IDs ELEMENT_AGE_ID,
 ELEMENT_FEELING_ID etc.?

 An extract of the code is below. Any suggestions or advice would be
 appreciated.

 ---

 public class NodeTreeItemCell extends AbstractInputCellNodeDTO,
 NodeTreeItemCell.ViewData {

public static final int CELL_WIDTH = 440;

// these statics are the HTML element IDs
public static final String ELEMENT_AGE_ID = txtAge;
public static final String ELEMENT_FEELING_ID = optFeeling;
public static final String ELEMENT_TOWN_ID = txtTown;
public static final String ELEMENT_BUTTON_UPDATE_ID = btnUpdate;

public NodeTreeItemCell() {
/*
 * Let the parent class know that our cell responds to click
 events
 and
 * keydown events.
 */
super(click, change, keyup);

}


@Override
public void render(NodeDTO value, Object key, SafeHtmlBuilder sb) {

if (value == null) {
return;
}

// Start
sb.appendHtmlConstant(div id=\hPanelRoot\
 class=\nbRoot\ );
sb.appendHtmlConstant( table);
sb.appendHtmlConstant( tr);

// left panel
sb.appendHtmlConstant( td style=\vertical-align:top;\
  id=
 \vPanelLeft\);
sb.appendHtmlConstant(  table);
sb.appendHtmlConstant(   trtd
 class=\nbIcon\*/td/tr);
sb.appendHtmlConstant(  /table);
sb.appendHtmlConstant( /td);

// main panel
sb.appendHtmlConstant( td style=\vertical-align:top;\
 id=
 \vPanelMain\ class=\nbMainPanel\);
sb.appendHtmlConstant(  table style=\width:100%;\);
sb.appendHtmlConstant(   tr);
sb.appendHtmlConstant(td);
sb.appendHtmlConstant(spanBuild:/span);
sb.appendHtmlConstant(input type=\text\
 class=\nbTextBox\
 size=\3\ maxlength=\3\ id=\ +
 SafeHtmlUtils.fromTrustedString(ELEMENT_AGE_ID) + \/input);
sb.appendHtmlConstant(span%/span);
sb.appendHtmlConstant(spanFeeling:/span);
sb.appendHtmlConstant(select id=\ +
 SafeHtmlUtils.fromTrustedString(ELEMENT_FEELING_ID) + \);
sb.appendHtmlConstant(/select);
sb.appendHtmlConstant(/td);
sb.appendHtmlConstant(   /tr);
sb.appendHtmlConstant(   tr);
sb.appendHtmlConstant(td id=\tbc\
 class=\nbItemRow\);
sb.appendHtmlConstant(spanExpected
 Complete:/span);
sb.appendHtmlConstant(input type=\text\ id=\ +
 SafeHtmlUtils.fromTrustedString(ELEMENT_TOWN_ID) + \/input);
sb.appendHtmlConstant(input type=\button\
 value=\Update\
 class=\nbButton\id=\ +
 SafeHtmlUtils.fromTrustedString(ELEMENT_BUTTON_UPDATE_ID) + \/
 input);
sb.appendHtmlConstant(/td);
sb.appendHtmlConstant(   /tr);
sb.appendHtmlConstant(  /table );
sb.appendHtmlConstant( /td);

// end
sb.appendHtmlConstant( /tr);

Re: MySQL Error

2010-12-03 Thread Paul Robinson


You have google app engine enabled, but GAE doesn't support MySQL.

Either disable GAE, or stop using MySQL.

Paul

On 03/12/10 14:10, du.hahn wrote:

Hi,

I'm using GWT + Mysql in my project and I get this error when running
in Eclipse:

[ERROR] javax.servlet.ServletContext log: Exception while dispatching
incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract java.lang.String
com.globalmind.gwt.dbmind.client.GreetingService.greetServer(java.lang.String,java.lang.String)'
threw an unexpected exception: java.lang.NoClassDefFoundError:
com.mysql.jdbc.Driver is a restricted class. Please see the Google
App Engine developer's guide for more details.
at
com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:
378)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
581)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
207)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:
243)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:
62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
511)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1166)
at
com.google.appengine.api.blobstore.dev.ServeBlobFilter.doFilter(ServeBlobFilter.java:
58)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.apphosting.utils.servlet.TransactionCleanupFilter.doFilter(TransactionCleanupFilter.java:
43)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
com.google.appengine.tools.development.StaticFileFilter.doFilter(StaticFileFilter.java:
122)
at org.mortbay.jetty.servlet.ServletHandler
$CachedChain.doFilter(ServletHandler.java:1157)
at
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:
388)
at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:
216)
at
org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:
182)
at
org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:
765)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
418)
at
com.google.apphosting.utils.jetty.DevAppEngineWebAppContext.handle(DevAppEngineWebAppContext.java:
70)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at com.google.appengine.tools.development.JettyContainerService
$ApiProxyHandler.handle(JettyContainerService.java:349)
at
org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:
152)
at org.mortbay.jetty.Server.handle(Server.java:326)
at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
542)
at org.mortbay.jetty.HttpConnection
$RequestHandler.content(HttpConnection.java:938)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:755)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:218)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
at
org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:
409)
at org.mortbay.thread.QueuedThreadPool
$PoolThread.run(QueuedThreadPool.java:582)
Caused by: java.lang.NoClassDefFoundError: com.mysql.jdbc.Driver is a
restricted class. Please see the Google  App Engine developer's guide
for more details.
at
com.google.appengine.tools.development.agent.runtime.Runtime.reject(Runtime.java:
51)
at com.mysql.jdbc.Driver.clinit(Driver.java:65)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:186)
at
com.globalmind.gwt.dbmind.server.GreetingServiceImpl.conecta(GreetingServiceImpl.java:
24)
at
com.globalmind.gwt.dbmind.server.GreetingServiceImpl.greetServer(GreetingServiceImpl.java:
15)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
57)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
43)
at java.lang.reflect.Method.invoke(Method.java:616)
at
com.google.appengine.tools.development.agent.runtime.Runtime.invoke(Runtime.java:
100)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
562)
... 30 more

My code is (on the server side):

private void conecta(){
String driver = com.mysql.jdbc.Driver;
Connection con = null;

try {

Re: Safe Html check?

2010-12-03 Thread Philip Rogers

As a best practice, it is usually best to unwrap (call
safehtml.asString()) as close to the value's use as possible. When
migrating you can replace many String occurrences with SafeHtml, and
widgets provide SafeHtml-aware methods that will automatically handle
your SafeHtml object. The toSafeString(String) method is private for
this reason--to encourage passing around SafeHtml instead of String.

Does an attribute-less span tag do anything? Allowing attributes
certainly makes span and div unsafe, as you point out with the
onclick example.

Creating your own sanitizer may be the way to go for your application,
as the one provided is quite simple (hence the name :) That said, it's
very easy to introduce security holes and I would recommend against
rolling your own. Large apps, for instance Google Wave, have been
written using SafeHtml and without custom sanitizers. (AFAIK)

Another option for you may be the SafeHtmlTemplates. The SafeHtml
guide I linked before gives all the details, and you can see some
additional uses of templates in practice in CellTable.java (and many
of the other Cell-based widgets.)

Example:
@Template(div style=\outline:none;\{0}/div)
SafeHtml div(SafeHtml contents);

Philip

On Dec 2, 2:15 pm, Ed post2edb...@gmail.com wrote:
 Apearantly I was reading too fast :(...
 I seem to need the class SimpleHtmlSanitizer .
 Thanks for the tip.

 I am using it now, but noticed that snaitizeHtml always returns an
 SafeHtml object.
   public static SafeHtml sanitizeHtml(String html);

 That's often not what I want, especially not when migrating to it's
 usage. I rather have it return a string, but that method is private:
   private static String simpleSanitize(String text) {

 As it safes me the creation of this object that I don't use.
 I use it at this moment through a central method in my UtilsGwt:
         public static String toSafeString(final String text) {
                 return SimpleHtmlSanitizer.sanitizeHtml(text).asString();
         }

 Besides that, I see you throw an exception if the specified html is
 null:
   public static SafeHtml sanitizeHtml(String html) {
     if (html == null) {
       throw new NullPointerException(html is null);
     }
     return new SafeHtmlString(simpleSanitize(html));
   }

 I would prefer you just return null, especially as it's valid to set
 null as: element.innerHtml(null)

 Hmmm I also see that span is escaped, so I probably better off
 creating my own sanitizer ;)..
 It would be nice if there would a default sanitizer that you can
 configure maybe (flexible white list)..

 Just one question: why are elements as div and span not whitelisted ?
 I think because you could do something like:
 div onclick=javascript:alert('send help. stuck in adom');

 or not?

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Re: OT: Re: how to achieve pretty URLs in GWT 2.0 application

2010-12-03 Thread Kenneth Jacker

 yes, you are right, on ff 3.6 and safari 5 it did not work for me, but on 
 good old ie6 it works.

OK, you have confirmed the problem ...

 if you need the pdf, send me a short notice

You are so kind!  But that won't be necessary.

DO-NOT-ARCHIVE
As a die hard Unix/Linux user for many years, I put on my cloak of
invisibility, made sure no one was around/looking, and discretely
used a Windoze machine.

Running IE on it allowed me to print.
/DO-NOT-ARCHIVE

Thanks for the work around!

Doesn't  Google need to do something about this?  Seems that printing
of those docs should work on most modern browsers ... including their
own Google Chrome ...

Thanks again Dominic!

-Kenneth

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Re: Can't get to default place

2010-12-03 Thread ailinykh

Yes, of course. As I told, everything works as supposed to. The only
problem- clicking back.

On Dec 3, 12:46 am, zixzigma zixzi...@gmail.com wrote:
 Have you added your newly created place to AppPlaceHistoryMapper ?

 http://code.google.com/webtoolkit/doc/latest/DevGuideMvpActivitiesAnd...

 @WithTokenizers({HelloPlace.Tokenizer.class,
 GoodbyePlace.Tokenizer.class})
 public interface AppPlaceHistoryMapper extends PlaceHistoryMapper
 {







 }

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Re: How to install GWT Designer

2010-12-03 Thread András Csányi

On 3 December 2010 10:19, Basi Lambanog restyc...@gmail.com wrote:
 Hello,
 I'm trying to install GWT Designer onto Eclipse 3.6. The instruction
 says

 In Eclipse, click Help  Install New Software...

 but there is no Help option on the Eclipse menu.

 How else can I install GWT Designer?

 Thanks,.

Should be.
File - Edit - Navigate - Search - Project - Run - Window - Help

It's first start? There is a little x on the left side, close the
advertise page and everything is going to fine.

-- 
- -
--  Csanyi Andras (Sayusi Ando)  -- http://sayusi.hu --
http://facebook.com/andras.csanyi
--  Trust in God and keep your gunpowder dry! - Cromwell

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Tutorial-Contacts2-2.1

2010-12-03 Thread Diego Lovison

http://google-web-toolkit.googlecode.com/files/Tutorial-Contacts2-2.1.zip

isnt impossible open the zip file is currupt

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Re: To smart GWT or not

2010-12-03 Thread Sanjiv Jivan

Jaroslav,
If you're happy with GWT that’s great but please do not make such vague and
baseless claims about Smart GWT. Legitimate bugs reported are fixed really
quickly and existing users can attest to this. Smart GWT currently has
around 42 open defects with a majority of them being low priority, and 16
enhancement requests ( http://code.google.com/p/smartgwt/issues/list ).
Considering the depth and breadth of features provided by the framework this
is a pretty low number of defects.

3 of the 7 issues that you filed were invalid, and 2 defects that were fixed
and the remaining 2 were marked WontFix since they were trivial pieces of
functionality that the user could easily implement.

http://code.google.com/p/smartgwt/issues/list?can=1q=reporter:jaroslav.zaruba

http://code.google.com/p/smartgwt/issues/list?can=1q=reporter:jaroslav.zarubaAnd
when you were advised how to implement a warning dialog before record
deletion on this issue that you filed (
http://code.google.com/p/smartgwt/issues/detail?id=325 ), you responded by you
are sad. Nice way to show your appreciation when using a free product.

Sanjiv

2010/12/3 Jaroslav Záruba jaroslav.zar...@gmail.com

...until you run into some SmartGWT magic - like widgets not working
without otherwise completely useless 'final' (have fun trying figure
that out), newly spanned records not appearing in tree, styles not
getting applied until mouseover, etc.
What looks like polished set of awesome widgets might turn into
nightmare which makes you throwing your deadlines out of the window.

(Like I said before, this particular experience with SmartGWT is one
year old.)

With GWT the start might be slower but you can predict the deadlines +
you're not working with 'black box'.

On 3 pro, 00:00, ckendrick charles.kendr...@gmail.com wrote:
Sorry that's quite absurd: SmartGWT is often introduced to solve
performance problems, and it solves them.

SmartGWT is intentionally designed to have a one-time-ever download of
a feature rich runtime in exchange for reducing subsequent server
requests. For example, Adaptive Filtering greatly reduces the
costliest types of database hits:

http://www.smartclient.com/smartgwt/showcase/#grid_adaptive_filter_fe...

.. and allows you to introduce an extremely powerful data highlighting
system with no server load at all:

http://blog.isomorphic.com/?p=234

If your application is the kind we target - complex enterprise
applications which are used repeatedly and for significant lengths of
time - this provides a gigantic performance boost, and once-ever
download of cachable JavaScript files is a negligible factor.

Look at a deployed SmartGWT application and you've got users humming
along, ripping through the interface and nothing being downloaded
anymore because it's all cached. And everyone is getting fast
responses from the database because the Smart GWT framework is
minimizing database load.

The larger your application becomes, the more these benefits accrue.
And, by the time you've built an application with comparable
functionality with core GWT or another GWT-based framework, you're
going to be downloading the same size runtime as SmartGWT anyway.

On Dec 1, 1:44 pm, aarnott andrew.wj.arn...@gmail.com wrote:

I've found Smart GWT to have rather poor performance and it comes at
the added cost of massive javascript libraries (even when they are
gzipped). If you are anything like me, you will probably find that you
lose time in the long run by going with Smart GWT because you will
want to get rid of it later to boost performance.

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Re: CSS3 Selector nth-child

2010-12-03 Thread dusty

I guess this is already a recorded issue:
http://code.google.com/p/google-web-toolkit/issues/detail?id=4422

--Dusty

On Dec 2, 10:53 am, dusty du...@campbell-web.com wrote:
 Hello,

 Using UiBinder I have an embedded CSS style and want to use nth-
 child(even).  The Uibinder crashes saying it can't interpret the CSS.
 If I replace even with a number it says it is expecting IDENT.  Is
 this possible with GWT?

 Here is my CSS segment:

 ui:style
         .productlist {
                 cursor: pointer;
                 width: 50em;
                 padding: 10px 10px 0px 10px;
         }

         .productlist tr:nth-child(even) {
                 background-color: silver;
         }

 /ui:style

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Re: Tutorial-Contacts2-2.1

2010-12-03 Thread Chris Conroy

(looking into it)

On Fri, Dec 3, 2010 at 10:48 AM, Diego Lovison diegolovi...@gmail.comwrote:

 http://google-web-toolkit.googlecode.com/files/Tutorial-Contacts2-2.1.zip

 isnt impossible open the zip file is currupt

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Re: gwt-maven-plugin / google plugin for eclipse / working for anyone?!?!

2010-12-03 Thread PhilBeaudoin

A valuable resource that has helped me quite a bit are the POMs from
Harald Pehl in his various open source projects. Check out:

Super POM with global settings:
http://code.google.com/p/pehl-parent/source/browse/trunk/pom.xml

Super POM for Piriti:
http://code.google.com/p/piriti/source/browse/trunk/pom.xml

Piriti Core module (framework character):
http://code.google.com/p/piriti/source/browse/trunk/core/pom.xml

Piriti Sample module (GWT App deployed on AppEngine):
http://code.google.com/p/piriti/source/browse/trunk/sample/pom.xml


We are in the process of migrating gwt-platform to Maven, so you might
find some information in there too:
http://code.google.com/p/gwt-platform/issues/detail?id=211

Cheers,

 Philippe


On Dec 2, 4:25 pm, cri chuck.irvine...@gmail.com wrote:
 No. No errors other than the ones mentioned in the original post.
 After resolving those errors, we could run the default project using
 run as / web application. The problem only comes after we add
 dependencies to our pom file.

 On Dec 2, 2:43 pm, David Chandler drfibona...@google.com wrote:







  Do you see errors in any of the Eclipse consoles (including Maven console)
  while doing the import?

  On Thu, Dec 2, 2010 at 3:28 PM, cri chuck.irvine...@gmail.com wrote:
   We are trying to use gwt-maven-plugin to generate our mavenized gwt
   project. Our versions are:

   eclipse helios
   gwt 2.1
   gwt-maven-plugin 2.1.1-SNAPSHOT

   We generate our initial project with the command line:

   mvn archetype:generate \
   -DarchetypeRepository=https://nexus.codehaus.org/content/groups/
   snapshots-group/  \
   -DarchetypeGroupId=org.codehaus.mojo \
   -DarchetypeArtifactId=gwt-maven-plugin \
   -DarchetypeVersion=2.1.1-SNAPSHOT

   We then import the project into eclipse using import / as existing
   project.

   Here are the problems we then encountered:

   (1) Eclipse compile errors complaining of unknown classes. These are
   classes the plugin generates and places in target/generated-sources/
   gwt. The classes are Messages.java and GreetingServiceAsync.java. We
   work around this problem by adding  target/generated-sources/gwt to
   our eclipse project classpath.

   (2) The class GwtTesttest.java has eclipse compile errors. We don't
   care much about this so for the moment we are just deleting that
   class.

   (3) This is the problem we can't find a workaround for. If we add
   dependencies to our pom, say spring framework, they then get added
   automatically to the Libraries/Maven Dependencies. The problem comes
   when we invoke Run As... / Web Application. Jetty fails to find
   classes in our newly added maven dependency, e.g Spring.

   Is there anyone out there that can shed some light on this? Thanks

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Spring mappings with 2 GWTapp - upgrade 2.0 to 2.1

2010-12-03 Thread Tom

Hi,

I developped two GWT applications app1 et app2 with spring in GWT 2.0
I do some stuff in app1 then I go on app2 with the line :

Window.open(GWT.getHostPageBaseURL()+app2.html, _self, );

These two apps are in the same webapp. Moreover I defined the
mapping :

beans
bean id=urlMapping
class=org.gwtwidgets.server.spring.GWTHandler
property name=mappings
map
entry key=/app1/service1.rpc 
value-ref=action.service1 /
entry key=/app2/service2.rpc 
value-ref=action.service2 /
/map
/property
/bean
/beans

The application worked fine with GWT 2.0.
The problem occurs when I upgraded GWT to  2.1.

the mapping works but the link between app1 et app2 failes. I get the
error :

springWebapp: ERROR: The serialization policy file '/avenanceportage/
6C7454447EB3F5DE8F334854ABD1DC32.gwt.rpc' was not found; did you
forget to include it in this deployment?
- springWebapp: WARNING: Failed to get the SerializationPolicy
'6C7454447EB3F5DE8F334854ABD1DC32' for module 'http://localhost:8080/
test/test2/'; a legacy, 1.3.3 compatible, serialization policy will be
used.  You may experience SerializationExceptions as a result.

The file  '6C7454447EB3F5DE8F334854ABD1DC32' doesn't exist in any
folder.

Thanks
Thomas



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Ship a GWT app as a desktop app with local server?

2010-12-03 Thread Brett Thomas

Hi all, sort of an off beat question: what's the best cross-platform library
for a local web server, that could effectively make a standard GWT app into
a desktop app? Ideal would be super light weight, and just allow users to
run the app offline, with local data. Language could be Java, C++ or Python.


If curious about why such a library would be desired, some background at the
end of the email...
Thanks for the help,
Brett

***
Background:

I'm about to build an app for researchers to browse and analyze large
scientific datasets. We want to permit two uses:
-- Web version: users can browse/analyze common public datasets over the web
-- Local version: users can do the same browsing/analysis on their own data
set, *without* transferring the data to the server.

The plan now is to build a desktop app for this. I'd love to make it a
browser app instead, with GWT as the front end. If we went this route, we'd
have to provide some software download for the local version. Here are the
options I can think of:
1 -- Local version is a completely separate app. Hope to avoid this so users
get the same interface on web/local.
2 -- Use Gears (or Adobe Air). Avoided because that would require
transferring server side analysis code to javascript (or Actionscript).
(Right?)
3 -- Ship an executable that starts a local web server. User views app at
http://localhost:12345/ in the browser.
(Any others I'm missing?)

I am trying to assess the feasability of #3. The ideal workflow of our app
would be:
-- Researcher checks out our site in the browser and tries it out. Likes it,
clicks the Try this on your own data button
-- Downloads executable with mystery web server described above :)
-- Double clicks executable and a minor GUI shows up with a Get started!
button
-- User clicks, and the app is loaded in the browser at
http://localhost:[whatever
port]/. The app looks the same as it did online with the same functionality,
except the Select data set option lists local files...

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Re: MySQL Error

2010-12-03 Thread du.hahn

Hi Paul,

I disabled the GAE and now i have this error:

 [WARN] Nested in java.lang.ExceptionInInitializerError:
org.apache.commons.logging.LogConfigurationException:
org.apache.commons.logging.LogConfigurationException: No suitable Log
constructor [Ljava.lang.Class;@106df95 for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category) (Caused by
org.apache.commons.logging.LogConfigurationException: No suitable Log
constructor [Ljava.lang.Class;@106df95 for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category))
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:
543)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:
235)
at
org.apache.commons.logging.impl.LogFactoryImpl.getInstance(LogFactoryImpl.java:
209)
at org.apache.commons.logging.LogFactory.getLog(LogFactory.java:351)
at org.apache.jasper.servlet.JspServlet.clinit(JspServlet.java:58)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native
Method)
at
sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:
57)
at
sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:
45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:532)
at java.lang.Class.newInstance0(Class.java:372)
at java.lang.Class.newInstance(Class.java:325)
at org.mortbay.jetty.servlet.Holder.newInstance(Holder.java:153)
at org.mortbay.jetty.servlet.ServletHolder.doStart(ServletHolder.java:
253)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
at
org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:
616)
at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
at
org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:
1220)
at
org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:
513)
at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:
448)
at com.google.gwt.dev.shell.jetty.JettyLauncher
$WebAppContextWithReload.doStart(JettyLauncher.java:447)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
130)
at
org.mortbay.jetty.handler.RequestLogHandler.doStart(RequestLogHandler.java:
115)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
at
org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:
130)
at org.mortbay.jetty.Server.doStart(Server.java:222)
at
org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:
39)
at
com.google.gwt.dev.shell.jetty.JettyLauncher.start(JettyLauncher.java:
542)
at com.google.gwt.dev.DevMode.doStartUpServer(DevMode.java:431)
at com.google.gwt.dev.DevModeBase.startUp(DevModeBase.java:1053)
at com.google.gwt.dev.DevModeBase.run(DevModeBase.java:795)
at com.google.gwt.dev.DevMode.main(DevMode.java:282)
Caused by: org.apache.commons.logging.LogConfigurationException: No
suitable Log constructor [Ljava.lang.Class;@106df95 for
org.apache.commons.logging.impl.Log4JLogger (Caused by
java.lang.NoClassDefFoundError: org/apache/log4j/Category)
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:
413)
at
org.apache.commons.logging.impl.LogFactoryImpl.newInstance(LogFactoryImpl.java:
529)
... 31 more
Caused by: java.lang.NoClassDefFoundError: org/apache/log4j/Category
at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2406)
at java.lang.Class.getConstructor0(Class.java:2716)
at java.lang.Class.getConstructor(Class.java:1674)
at
org.apache.commons.logging.impl.LogFactoryImpl.getLogConstructor(LogFactoryImpl.java:
410)
... 32 more
Caused by: java.lang.ClassNotFoundException: org.apache.log4j.Category
at java.net.URLClassLoader$1.run(URLClassLoader.java:217)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:205)
at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294)
at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
... 37 more

The code is the same.

Thanks for help!



On Dec 3, 12:38 pm, Paul Robinson ukcue...@gmail.com wrote:
 You have google app engine enabled, but GAE doesn't support MySQL.

 Either disable GAE, or stop using MySQL.

 Paul

 On 03/12/10 14:10, du.hahn wrote:







  Hi,

  I'm using GWT + Mysql in my project

Re: onResize issue with IE 7

2010-12-03 Thread Magnus

Hi Mayumi,

I am happy that there is someone else struggling with this problem.

Well, within onResize I just call resizeLater:

 public void onResize()
 {
  super.onResize();
  resizeLater();
 }

Ans resizeLater just schedules this action to be performed later:

 private void resizeLater ()
 {
  Scheduler.get().scheduleDeferred
  (
   new ScheduledCommand()
   {
public void execute()
{
 myResize ();
}
   }
  );
 }

And in myResize I do the resize actions themselves. When this method
is called, the new sizes are available through getOffset[Width|
Height].

But this is not a solution for me, since I have to deal with this
stuff in every subclass.

HTH (but I hope that someone helps me .-))
Magnus

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CellTable composite Header

2010-12-03 Thread manstis

Hi,

I'd like to make a composite Header for CellTable.

My requirements are:-
* Multiple rows
* ColSpan in one of the multiple rows
* Multiple Clickable elements in each TH's TD

Naively my plan was to generate the required HTML in the Header's
render method and hook up clickHandlers to some of the elements;
however (obviously) the render method only returns HTML which is used
by CellTable to populate the inner HTML of elements already created
(namely the TH and TD elements).

Furthermore to provide the multi-row\colspan requirements I planned on
using the same Header for all columns (so CellTable spans all columns)
and generate HTML for a nested table - with multiple rows\colspan etc.
Provided the nested table's column widths match those of the CellTable
and I override CSS to remove padding and margins it gives the required
effect.

I also found that click events do not get raised when the Header
contains HTML for another table.

So, some questions:-
* Does anybody have advice on implementing composite headers?
* Can you attach Handlers to HTML elements created in a render method?
* How can I get Click Events to pass through to a nested HTML table?
* Would I be better off writing my own Widget rather than use
CellTable?

Thanks for reading this far.

Mike

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Re: How to install GWT Designer

2010-12-03 Thread Basi Lambanog

Thank you for your reply.

I'm new to Eclipse (though not to IDEs). When I start Eclipse I don't
see the expected menu items like File Edit Navigate, etc. Instead, I
see the Package Explorer perspective and a bunch of icons (related to
cutting and pasting along the top where the menu items should be.

I installed the Eclipse IDE for Java developers Helios package. Mac
Mini OSX 10.6.

I'm missing a menu. I can't order anything. I'm hungry!

Thanks.



On Dec 3, 8:33 am, András Csányi sayusi.a...@gmail.com wrote:
 On 3 December 2010 10:19, Basi Lambanog restyc...@gmail.com wrote:

  Hello,
  I'm trying to install GWT Designer onto Eclipse 3.6. The instruction
  says

  In Eclipse, click Help  Install New Software...

  but there is no Help option on the Eclipse menu.

  How else can I install GWT Designer?

  Thanks,.

 Should be.
 File - Edit - Navigate - Search - Project - Run - Window - Help

 It's first start? There is a little x on the left side, close the
 advertise page and everything is going to fine.

 --
 - -
 --  Csanyi Andras (Sayusi Ando)  
 --http://sayusi.hu--http://facebook.com/andras.csanyi
 --  Trust in God and keep your gunpowder dry! - Cromwell

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Re: Ship a GWT app as a desktop app with local server?

2010-12-03 Thread Gaurav Vaish

Why not use Jetty (Embeddable, Lightweight Java Servlet Container -
cross platform).



--
Happy Hacking,
Gaurav Vaish
http://www.mastergaurav.com


On Dec 3, 10:09 pm, Brett Thomas brettptho...@gmail.com wrote:
 Hi all, sort of an off beat question: what's the best cross-platform library
 for a local web server, that could effectively make a standard GWT app into
 a desktop app? Ideal would be super light weight, and just allow users to
 run the app offline, with local data. Language could be Java, C++ or Python.

 If curious about why such a library would be desired, some background at the
 end of the email...
 Thanks for the help,
 Brett

 ***
 Background:

 I'm about to build an app for researchers to browse and analyze large
 scientific datasets. We want to permit two uses:
 -- Web version: users can browse/analyze common public datasets over the web
 -- Local version: users can do the same browsing/analysis on their own data
 set, *without* transferring the data to the server.

 The plan now is to build a desktop app for this. I'd love to make it a
 browser app instead, with GWT as the front end. If we went this route, we'd
 have to provide some software download for the local version. Here are the
 options I can think of:
 1 -- Local version is a completely separate app. Hope to avoid this so users
 get the same interface on web/local.
 2 -- Use Gears (or Adobe Air). Avoided because that would require
 transferring server side analysis code to javascript (or Actionscript).
 (Right?)
 3 -- Ship an executable that starts a local web server. User views app 
 athttp://localhost:12345/in the browser.
 (Any others I'm missing?)

 I am trying to assess the feasability of #3. The ideal workflow of our app
 would be:
 -- Researcher checks out our site in the browser and tries it out. Likes it,
 clicks the Try this on your own data button
 -- Downloads executable with mystery web server described above :)
 -- Double clicks executable and a minor GUI shows up with a Get started!
 button
 -- User clicks, and the app is loaded in the browser 
 athttp://localhost:[whatever
 port]/. The app looks the same as it did online with the same functionality,
 except the Select data set option lists local files...

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GWT JavaDoc failures KeyPress v. KeyDown

This is my first entry in what will be a continuing series of pointing
out GWT JavaDocs achieving Microsoftian levels of saying everything
while explaining nothing.  Why? Because if you're going to actually
write documentation, it shouldn't be totally worthless.

KeyPressHandler: Handler interface for KeyPressEvent events
KeyDownHandler: Handler interface for KeyDownEvent events

KeyPressEvent : Represents a native key press event
KeyDownEvent: Represents a native key down event

Does anyone believe this documentation provides anything of value?
I sure don't.  What I want to know is what is teh difference between
these two things?  What, EXACTLY, is a KeyDownEvent?  How does it
differ from  KeyPressEvent ?  When would I use one, when would I use
the other?  Which one should I use if I want to fire off a command
when the user hits Enter or Return?

The first place most people are going to look to answer these
questions is the JavaDoc.  If you're programming in Eclipse (and, if
you're not, you're wasting a lot of time and killing your
productivity), you get the JavaDoc whenever you hover over one of
these objects, which means that the fist place to put anything and
everything the user needs to know is there (you want to put it other
places, too?  Great.  Disk space is cheap.  Programmer time is not).

So, what IS the difference between the two?  Anyone know?  Because
while I could make a guess, I'm not paid to guess, I'm paid to know.
(And yes, I'd be quite happy to pay ~$50 to get JavaDoc for GWT that
were something more than the pointless repeating of what's already
there.  Anyone selling something like that for GWT 2.1?)

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Re: GWT JavaDoc failures KeyPress v. KeyDown

2010-12-03 Thread Jeff Schwartz

KeyPress - triggered when the user presses a key and releases it (key down
and then key up)
KeyDown - triggered when the user presses the key (key down)

Perhaps the documentation assumes some prior knowledge of javascript and dom
events and though GWT tries to shield the developer from much of it it
cannot do so 100%.

Jeff

On Fri, Dec 3, 2010 at 1:47 PM, Greg Dougherty
dougherty.greg...@mayo.eduwrote:

This is my first entry in what will be a continuing series of pointing
out GWT JavaDocs achieving Microsoftian levels of saying everything
while explaining nothing. Why? Because if you're going to actually
write documentation, it shouldn't be totally worthless.

KeyPressHandler: Handler interface for KeyPressEvent events
KeyDownHandler: Handler interface for KeyDownEvent events

KeyPressEvent : Represents a native key press event
KeyDownEvent: Represents a native key down event

Does anyone believe this documentation provides anything of value?
I sure don't. What I want to know is what is teh difference between
these two things? What, EXACTLY, is a KeyDownEvent? How does it
differ from KeyPressEvent ? When would I use one, when would I use
the other? Which one should I use if I want to fire off a command
when the user hits Enter or Return?

The first place most people are going to look to answer these
questions is the JavaDoc. If you're programming in Eclipse (and, if
you're not, you're wasting a lot of time and killing your
productivity), you get the JavaDoc whenever you hover over one of
these objects, which means that the fist place to put anything and
everything the user needs to know is there (you want to put it other
places, too? Great. Disk space is cheap. Programmer time is not).

So, what IS the difference between the two? Anyone know? Because
while I could make a guess, I'm not paid to guess, I'm paid to know.
(And yes, I'd be quite happy to pay ~$50 to get JavaDoc for GWT that
were something more than the pointless repeating of what's already
there. Anyone selling something like that for GWT 2.1?)

--
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Re: GWT JavaDoc failures KeyPress v. KeyDown

2010-12-03 Thread Jim Douglas

It can help to remember that GWT generates JavaScript, so GWT concepts
(widgets, events, etc) generally map pretty much directly to
JavaScript concepts.

In this case, you can start with a google search for those events:

http://www.google.com/search?q=keydown+keypress+keyup

The first item in that search is excellent:

http://www.quirksmode.org/dom/events/keys.html

Bookmark and use this site [quirksmode.org, run by Peter-Paul Koch
(ppk)] as a regular reference.

This reference page + test page is also excellent:

http://unixpapa.com/js/key.html
http://unixpapa.com/js/testkey.html

FWIW, JavaScript and Java key events work very similarly, so the Java
KeyEvent documentation is helpful from a conceptual point of view:

http://download.oracle.com/javase/6/docs/api/java/awt/event/KeyEvent.html

Java KEY_PRESSED = JavaScript keydown
Java KEY_TYPED = JavaScript keypress
Java KEY_RELEASED = JavaScript keyup

On Dec 3, 10:47 am, Greg Dougherty dougherty.greg...@mayo.edu wrote:
 This is my first entry in what will be a continuing series of pointing
 out GWT JavaDocs achieving Microsoftian levels of saying everything
 while explaining nothing.  Why? Because if you're going to actually
 write documentation, it shouldn't be totally worthless.

 KeyPressHandler: Handler interface for KeyPressEvent events
 KeyDownHandler: Handler interface for KeyDownEvent events

 KeyPressEvent : Represents a native key press event
 KeyDownEvent: Represents a native key down event

 Does anyone believe this documentation provides anything of value?
 I sure don't.  What I want to know is what is teh difference between
 these two things?  What, EXACTLY, is a KeyDownEvent?  How does it
 differ from  KeyPressEvent ?  When would I use one, when would I use
 the other?  Which one should I use if I want to fire off a command
 when the user hits Enter or Return?

 The first place most people are going to look to answer these
 questions is the JavaDoc.  If you're programming in Eclipse (and, if
 you're not, you're wasting a lot of time and killing your
 productivity), you get the JavaDoc whenever you hover over one of
 these objects, which means that the fist place to put anything and
 everything the user needs to know is there (you want to put it other
 places, too?  Great.  Disk space is cheap.  Programmer time is not).

 So, what IS the difference between the two?  Anyone know?  Because
 while I could make a guess, I'm not paid to guess, I'm paid to know.
 (And yes, I'd be quite happy to pay ~$50 to get JavaDoc for GWT that
 were something more than the pointless repeating of what's already
 there.  Anyone selling something like that for GWT 2.1?)

-- 
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Re: NetBeans GWT and JUNIT

2010-12-03 Thread darkling

I also wanted to add my Test class in case something in there is being
done wrong:





package com.baa.client;

import com.baa.client.model.WebAppRestDataSource;
import com.baa.client.presentation.DummyDynamicFormPresentation;
import com.baa.client.presentation.DynamicFormPresentation;
import com.google.gwt.junit.client.GWTTestCase;
import com.smartgwt.client.data.Criteria;
import com.smartgwt.client.data.DSRequest;
import com.smartgwt.client.data.DSResponse;

/**
 *
 * @author mmagliocca
 */
public class BaseDynamicFormTest extends GWTTestCase{

public BaseDynamicFormTest()
{
//ClasspathUtility.printDuplicates();
}

@Override
public String getModuleName() {
return com.baa.Scaffolding;
}



/*
@Test
public void testTest() {
}

@Test
public void testSave() {
}

@Test
public void testCancel() {
}

@Test
public void testGetPermissionsObject() {
}
*/
//@Test
public void testFetchData()
{
   int x =1;
   x++; //finishTest();
}

//@Test
public void testGetXSD()
{
BaseDynamicFormImpl impl = new BaseDynamicFormImpl();
TestDynamicFormXSDDSCallBack xsdCallBack = new
TestDynamicFormXSDDSCallBack();
TestDynamicFormDataDSCallBack dataCallBack = new
TestDynamicFormDataDSCallBack();
Criteria criteria = new Criteria(ID, 3);
dataCallBack.setForm(impl);
xsdCallBack.setForm(impl);
xsdCallBack.setForm(impl);
xsdCallBack.setDsCallback(dataCallBack);
xsdCallBack.setForm(impl);
this.delayTestFinish(5000);
impl.fetchXSD(criteria, xsdCallBack);
}

/*
@Test
public void testSetValidator() {
}
*/
public class BaseDynamicFormImpl extends BaseDynamicForm {

public DynamicFormPresentation getPermissionsObject() {
return new DummyDynamicFormPresentation(null);
}
}

public class TestDynamicFormXSDDSCallBack extends
DynamicFormXSDCallBack
{
@Override
public void execute(WebAppRestDataSource ds) {
finishTest();
super.execute(ds);
//validate correctness
}
}

public class TestDynamicFormDataDSCallBack extends
DynamicFormDataCallBack
{
@Override
public void execute(DSResponse response, Object rawData,
DSRequest request)
{
super.execute(response, rawData, request);
//validate correctness
finishTest();
}
}
}




On Dec 3, 9:24 am, darkling darkling...@aol.com wrote:
 I'm trying to debug my Junit test case because its throwing tons of
 errors. However when I try to debug it instead of being able to run
 it, it tells me

 The test class 'com.baa.client.BaseDynamicFormTest' was not found in
 module 'com.baa.AccountView'; no compilation unit for that type was
 seen
 com.google.gwt.junit.JUnitFatalLaunchException: The test class
 'com.baa.client.BaseDynamicFormTest' was not found in module
 'com.baa.AccountView'; no compilation unit for that type was seen
         at
 com.google.gwt.junit.JUnitShell.checkTestClassInCurrentModule(JUnitShell.java:
 605)
         at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:
 1189)
         at com.google.gwt.junit.JUnitShell.runTestImpl(JUnitShell.java:
 1152)
         at com.google.gwt.junit.JUnitShell.runTest(JUnitShell.java:
 541)
         at
 com.google.gwt.junit.client.GWTTestCase.runTest(GWTTestCase.java:406)
         at
 com.google.gwt.junit.client.GWTTestCase.run(GWTTestCase.java:282)

 So now rather than debugging the errors that are caused when I run the
 test, I'm trying to debug the errors that only appear when I debug the
 test!

 I've seen lots of posts on this basic topic but they've all been
 Eclipse based and I'm not sure how to translate it for Netbeans. I'm
 using the GWT netbeans plugin and my test classes live in the test
 directory not the src directory.
 This is my module file:

 ?xml version=1.0 encoding=UTF-8?
 !DOCTYPE module PUBLIC -//Google Inc.//DTD Google Web Toolkit 2.0.0//
 EN http://google-web-toolkit.googlecode.com/svn/tags/2.0.0/distro-
 source/core/src/gwt-module.dtd
 module
   !-- Inherit the core Web Toolkit stuff.                        --
   inherits name=com.google.gwt.user.User/
   inherits name=com.smartgwt.SmartGwt/

   !-- TODO: remove from production --
   !-- provides access to SmartGWT console for debugging, to start
 console enter javascript:isc.showConsole() in browser URL --
   inherits name=com.smartgwt.tools.SmartGwtTools/

   !-- SmartGWT skin that we modify --
   !-- TODO: determine if we can rename this --
   inherits name=com.smartclient.theme.silverwave.SilverWave/
   !--inherits name=com.smartgwt.SmartGwtNoTheme/--

   !-- TODO: remove from production --
   !-- For development, only compile one permutation to save time --
   !-- Possible user.agent settings: ie6,ie8, gecko, gecko1_8(FireFox
 2), safari, opera --
   !--set-property

Re: GWT JavaDoc failures KeyPress v. KeyDown

Jeff,

Thank you. That' lets me know which one I want to use.

If I knew JavaScript and DOM, or, for that matter, even WANTED to know
JavaScript and DOM, I wouldn't be using GWT, I'd be writing the
JavaScript myself. No?

The whole point of using something like GWT is that it lets a Java
programmer write a web app w/o having to learn all the crap that
normal web app writers have to wade through. That's certainly why I
spent the time and effort to learn GWT. For that matter, I presume
that the people writing things like the KeyPressEventHandler DO know
JavaScript and DOM. So, really, how hard is it for them to put that
knowledge into the documentation? Isn't that what the documentation
is THERE for?

I write a JavaDoc header for every routine I write. And the point of
that header is to explain why it is that someone would be calling that
routine, and what they'll get by calling it. To my mind that's the
MINIMUM that should be in any JavaDoc, and if you're not going to
cover that, you should stop wasting time and just not write anything.
Do you disagree?

What % of the GWT JavaDoc actually answer those questions? 1%? 10%?

Greg

On Dec 3, 1:09 pm, Jeff Schwartz jefftschwa...@gmail.com wrote:
KeyPress - triggered when the user presses a key and releases it (key down
and then key up)
KeyDown - triggered when the user presses the key (key down)

Perhaps the documentation assumes some prior knowledge of javascript and dom
events and though GWT tries to shield the developer from much of it it
cannot do so 100%.

Jeff

On Fri, Dec 3, 2010 at 1:47 PM, Greg Dougherty
dougherty.greg...@mayo.eduwrote:

KeyPressHandler: Handler interface for KeyPressEvent events
KeyDownHandler: Handler interface for KeyDownEvent events

KeyPressEvent : Represents a native key press event
KeyDownEvent: Represents a native key down event

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Re: onResize issue with IE 7

2010-12-03 Thread mayumi

A senior developer that I work with found the solution.
We used forceLayout() on LayoutPanel which will
layout the children immediately.

Thanks for the reply.

Mayumi

On Dec 3, 12:20 pm, Magnus alpineblas...@googlemail.com wrote:
 Hi Mayumi,

 I am happy that there is someone else struggling with this problem.

 Well, within onResize I just call resizeLater:

  public void onResize()
  {
   super.onResize();
   resizeLater();
  }

 Ans resizeLater just schedules this action to be performed later:

  private void resizeLater ()
  {
   Scheduler.get().scheduleDeferred
   (
    new ScheduledCommand()
    {
     public void execute()
     {
      myResize ();
     }
    }
   );
  }

 And in myResize I do the resize actions themselves. When this method
 is called, the new sizes are available through getOffset[Width|
 Height].

 But this is not a solution for me, since I have to deal with this
 stuff in every subclass.

 HTH (but I hope that someone helps me .-))
 Magnus

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Re: GWT JavaDoc failures KeyPress v. KeyDown

2010-12-03 Thread David Chandler

Hi Greg,

Prior to joining Google, I thought (and still do think) that the GWT
developer guides are actually pretty rich for an open source project and
many of the Javadocs, too. Of course, there are always holes and we welcome
constructive feedback through the issue tracker.

GWT is open source, so I hope you will contribute Javadocs as you find
things that can be improved.

/dmc

On Fri, Dec 3, 2010 at 2:50 PM, Greg Dougherty
dougherty.greg...@mayo.eduwrote:

Jeff,

Thank you. That' lets me know which one I want to use.

If I knew JavaScript and DOM, or, for that matter, even WANTED to know
JavaScript and DOM, I wouldn't be using GWT, I'd be writing the
JavaScript myself. No?

What % of the GWT JavaDoc actually answer those questions? 1%? 10%?

Greg

On Dec 3, 1:09 pm, Jeff Schwartz jefftschwa...@gmail.com wrote:
KeyPress - triggered when the user presses a key and releases it (key
down
and then key up)
KeyDown - triggered when the user presses the key (key down)

Perhaps the documentation assumes some prior knowledge of javascript and
dom
events and though GWT tries to shield the developer from much of it it
cannot do so 100%.

Jeff

On Fri, Dec 3, 2010 at 1:47 PM, Greg Dougherty
dougherty.greg...@mayo.eduwrote:

KeyPressHandler: Handler interface for KeyPressEvent events
KeyDownHandler: Handler interface for KeyDownEvent events

KeyPressEvent : Represents a native key press event
KeyDownEvent: Represents a native key down event

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You

Calling EJB from RPC method

2010-12-03 Thread dato.java

Hello ,

I am developing simple GWT application with EJB 3.0 ,and user Apache
Maven 3.0 , but my porblem is that when i try to call some ejb method
from rpc method it fails with error:

2010-12-03 18:26:34,698 ERROR [org.apache.catalina.core.ContainerBase.
[jboss.web].[localhost].[/gwt-mvc-ui]] Exception while dispatching
incoming RPC call
com.google.gwt.user.server.rpc.UnexpectedException: Service method
'public abstract java.lang.String
david.chokhonelidze.gwt.mvc.ui.client.ApplicationService.addCustomer(java.lang.String)'
threw an unexpected exception: java.lang.NullPointerException
at
com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:
378)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
581)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
207)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:
243)
at
com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:
62)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
290)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
206)
at
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:
96)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
235)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
206)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
230)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
175)
at
org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:
182)
at
org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:
84)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
127)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:
102)
at
org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:
157)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:
109)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:
262)
at
org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
844)
at org.apache.coyote.http11.Http11Protocol
$Http11ConnectionHandler.process(Http11Protocol.java:583)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:
446)
at java.lang.Thread.run(Thread.java:662)
Caused by: java.lang.NullPointerException
at
david.chokhonelidze.gwt.mvc.ui.server.ApplicationServiceImpl.addCustomer(ApplicationServiceImpl.java:
26)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
562)
... 23 more

I see that it cant inject my ejb, so what is solution?

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Re: onResize issue with IE 7

2010-12-03 Thread PhilBeaudoin

I'm working with Mayumi on this bug and I'm pretty sure there is a
problem somewhere in GWT. In our case, it happens with deeply nested
layout panels. To reproduce the bug, we removeFromParent() a panel in
the middle of the hierarchy and later re-add() it. At that point, the
children of the re-added panel have wrong width/height and their width/
height does not update when resizing the browser window. (Again, only
in IE7.)

I have fixed the problem by calling forceLayout() recursively on the
nested layout panels. I do this by calling the following method on the
reattached panel right after we add() it:

private void forceLayoutRecursive(Widget widget) {
HasWidgets parent = null;
if (widget instanceof LayoutPanel) {
((LayoutPanel) widget).forceLayout( );
parent = (HasWidgets) widget;
}
if (widget instanceof DockLayoutPanel) {
((DockLayoutPanel) widget).forceLayout( );
parent = (HasWidgets) widget;
}
if (parent != null) {
IteratorWidget iter = parent.iterator( );
while (iter.hasNext( )) {
Widget child = iter.next( );
forceLayoutRecursive(child);
}
}
}

If I had more time I would work on a simple test case that reproduces
the problem and file an issue... :)

   Philippe

On Dec 3, 12:01 pm, mayumi mayumi.liyan...@gmail.com wrote:
 A senior developer that I work with found the solution.
 We used forceLayout() on LayoutPanel which will
 layout the children immediately.

 Thanks for the reply.

 Mayumi

 On Dec 3, 12:20 pm, Magnus alpineblas...@googlemail.com wrote:







  Hi Mayumi,

  I am happy that there is someone else struggling with this problem.

  Well, within onResize I just call resizeLater:

   public void onResize()
   {
    super.onResize();
    resizeLater();
   }

  Ans resizeLater just schedules this action to be performed later:

   private void resizeLater ()
   {
    Scheduler.get().scheduleDeferred
    (
     new ScheduledCommand()
     {
      public void execute()
      {
       myResize ();
      }
     }
    );
   }

  And in myResize I do the resize actions themselves. When this method
  is called, the new sizes are available through getOffset[Width|
  Height].

  But this is not a solution for me, since I have to deal with this
  stuff in every subclass.

  HTH (but I hope that someone helps me .-))
  Magnus

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Re: Ship a GWT app as a desktop app with local server?

As much as I like GWT, I think it might not be the right tool for your
situation.

Your two use cases are:

* Remote data and compute
* Local data and compute (unless you meant that desktop use would use remote
compute, but I don't think so because that would require transmitting local
data to the server)

While being able to reuse the UI (for both consistency and
development efficiency) is a good goal, it sounds like your real substance
is the analysis algorithms. What language are those implemented in?

Assuming you're using Java, you do have some options. A separate desktop
application is one of them. You could also go with a webapp and use
something like Jetty on the desktop, like Gaurav suggested. I think that
would be awkward in desktop mode as you'd have two processes to worry about,
the jetty server and the browser, which may be tricky to do well and may be
confusing to users. Plus your access to the local filesystem is going to be
awkward. You'd probably have to present an upload widget to invoke the
system file dialog, but then just pass the file path to the locally running
server for it to open directly (which hopefully it would be able to do...)

You might instead want to look into using Swing, SWT, JavaFX, or Apache
Pivot. I went to a NEJUG talk about Pivot earlier this year and was pretty
impressed with it. Some things even reminded me of GWT.

One catch, though... I'm not sure if it's just their demos, but they require
Java 6, and they don't quite work in-browser on Mac OS X 10.5. Supposedly
they do work in 10.6, but I haven't upgraded yet so I can't confirm. (See
http://mail-archives.apache.org/mod_mbox/pivot-user/201006.mbox/%3c8d8726ba-54bd-4745-87d1-40d067b34...@mac.com%3efor
the response to my question on the Pivot mailing list.)

-Brian

On Fri, Dec 3, 2010 at 1:36 PM, Gaurav Vaish gaurav.va...@gmail.com wrote:

Why not use Jetty (Embeddable, Lightweight Java Servlet Container -
cross platform).

--
Happy Hacking,
Gaurav Vaish
http://www.mastergaurav.com

On Dec 3, 10:09 pm, Brett Thomas brettptho...@gmail.com wrote:
Hi all, sort of an off beat question: what's the best cross-platform
library
for a local web server, that could effectively make a standard GWT app
into
a desktop app? Ideal would be super light weight, and just allow users to
run the app offline, with local data. Language could be Java, C++ or
Python.

If curious about why such a library would be desired, some background at
the
end of the email...
Thanks for the help,
Brett

***
Background:

I'm about to build an app for researchers to browse and analyze large
scientific datasets. We want to permit two uses:
-- Web version: users can browse/analyze common public datasets over the
web
-- Local version: users can do the same browsing/analysis on their own
data
set, *without* transferring the data to the server.

The plan now is to build a desktop app for this. I'd love to make it a
browser app instead, with GWT as the front end. If we went this route,
we'd
have to provide some software download for the local version. Here are
the
options I can think of:
1 -- Local version is a completely separate app. Hope to avoid this so
users
get the same interface on web/local.
2 -- Use Gears (or Adobe Air). Avoided because that would require
transferring server side analysis code to javascript (or Actionscript).
(Right?)
3 -- Ship an executable that starts a local web server. User views app
athttp://localhost:12345/in the browser.
(Any others I'm missing?)

I am trying to assess the feasability of #3. The ideal workflow of our
app
would be:
-- Researcher checks out our site in the browser and tries it out. Likes
it,
clicks the Try this on your own data button
-- Downloads executable with mystery web server described above :)
-- Double clicks executable and a minor GUI shows up with a Get
started!
button
-- User clicks, and the app is loaded in the browser
athttp://localhost:[whatever
port]/. The app looks the same as it did online with the same
functionality,
except the Select data set option lists local files...

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Getting a user Enter key

Ok, the tutorial says that to get a user pressing an enter key in a
TextBox you should write something like the following:

http://code.google.com/webtoolkit/doc/latest/tutorial/manageevents.html

public void onKeyPress (KeyPressEvent event)
{
charkeyPress = event.getCharCode();
int keyCode = keyPress;
if (keyPress == KeyCodes.KEY_ENTER)
goToRecord ();
}

Unfortunately, when I do that, I get a keyCode of 0 for  Enter, Tab,
and Left Arrow (the keys I tested), while I get the actual key when I
type a number key.  What gives?  Is the tutorial wrong?  If so, what
should I be calling?

TIA,

Greg

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Re: CellTable, how to create a cell with custom listbox

2010-12-03 Thread savilak

Can you please give me a hint on this?


On Nov 29, 6:22 pm, savilak savi...@gmail.com wrote:
 I have to create a CellTable with cells that contain ListBoxes.

 The issue is that I want each item of the listbox to contain an Image
 and Text!
 Standard ListBoxes does not allow us to use images at its items
 (select optionItem 1/option /select).

 What is the best approach I can follow to implement this?

 Thank you for your time.

 Savilak

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Google's CellTree documentation - CellTreeExample2.java won't compile !


In Google's documentation for CelLTree,
http://code.google.com/webtoolkit/doc/latest/DevGuideUiCellWidgets.html#celltree

the sample code provided for CellTreeExample2 doesnt compile:
http://google-web-toolkit.googlecode.com/svn/trunk/user/javadoc/com/google/gwt/examples/cellview/CellTreeExample2.java

the problem is in :

CellComposer cell = new AbstractCellComposer() {
  @Override
  public void render(Context context, Composer value,
SafeHtmlBuilder sb) {
if (value != null) {
  sb.appendEscaped(value.getName());
}
  }
};

and

ListDataProviderPlaylist dataProvider = new
ListDataProviderPlaylist(
((Composer) value).getPlaylists());
CellPlaylist cell = new AbstractCellPlaylist() {
  @Override
  public void render(Context context, Playlist value,
SafeHtmlBuilder sb) {
if (value != null) {
  sb.appendEscaped(value.getName());
}
  }
};


IDE suggests:

- The method render(AutoBeanVisitor.Context,
ApplicationMain.Composer, SafeHtmlBuilder) of type new
AbstractCellApplicationMain.Composer(){} must override or implement
a supertype
 method

- Context cannot be resolved to a type


the problem is Context.
do you know what is the correct type for Context ? is it
AutoBeanVisitor ?

h

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Re: Google's CellTree documentation - CellTreeExample2.java won't compile !

does anyone know how the problem mentioned can be fixed ?

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Re: GWT JavaDoc failures KeyPress v. KeyDown

Greg,

For what it's worth, I had very similar feelings when I ran into a very
similar problem. (I was trying to get consistent behavior when pressing
enter or tab. Tab is a tricky one because different browsers do different
things with different events to handle element focus. Hint: in Safari, you
may have to call event.preventDefault() in order to prevent focus shifting
to funny places, though that might depend on whether or not you're also
trying to manage focus).

To make a long story short, this is a very problematic area when it comes to
cross-browser compatibility. If you're survived it (despite frustrations),
you're in pretty good shape.

This is probably one of the worst corners you'll find in GWT because it
actually affects functionality. There are still issues with things rendering
differently, but at least those are only visual. There's not much you can do
about that other than to learn how to deal with some and avoid the others.

There are some areas where GWT does hide some of the complexity (element
visibility, for example), but GWT is more about leveling the behavior of
JavaScript than the DOM.

-Brian

On Fri, Dec 3, 2010 at 3:05 PM, David Chandler drfibona...@google.comwrote:

 Hi Greg,

 Prior to joining Google, I thought (and still do think) that the GWT
 developer guides are actually pretty rich for an open source project and
 many of the Javadocs, too. Of course, there are always holes and we welcome
 constructive feedback through the issue tracker.

 GWT is open source, so I hope you will contribute Javadocs as you find
 things that can be improved.

 /dmc


 On Fri, Dec 3, 2010 at 2:50 PM, Greg Dougherty dougherty.greg...@mayo.edu
  wrote:

 Jeff,

 Thank you.  That' lets me know which one I want to use.

 If I knew JavaScript and DOM, or, for that matter, even WANTED to know
 JavaScript and DOM, I wouldn't be using GWT, I'd be writing the
 JavaScript myself.  No?

 The whole point of using something like GWT is that it lets a Java
 programmer write a web app w/o having to learn all the crap that
 normal web app writers have to wade through.  That's certainly why I
 spent the time and effort to learn GWT.  For that matter, I presume
 that the people writing things like the KeyPressEventHandler DO know
 JavaScript and DOM.  So, really, how hard is it for them to put that
 knowledge into the documentation?  Isn't that what the documentation
 is THERE for?

 I write a JavaDoc header for every routine I write.  And the point of
 that header is to explain why it is that someone would be calling that
 routine, and what they'll get by calling it.  To my mind that's the
 MINIMUM that should be in any JavaDoc, and if you're not going to
 cover that, you should stop wasting time and just not write anything.
 Do you disagree?

 What % of the GWT JavaDoc actually answer those questions?  1%?  10%?

 Greg

 On Dec 3, 1:09 pm, Jeff Schwartz jefftschwa...@gmail.com wrote:
  KeyPress - triggered when the user presses a key and releases it (key
 down
  and then key up)
  KeyDown - triggered when the user presses the key (key down)
 
  Perhaps the documentation assumes some prior knowledge of javascript and
 dom
  events and though GWT tries to shield the developer from much of it it
  cannot do so 100%.
 
  Jeff
 
  On Fri, Dec 3, 2010 at 1:47 PM, Greg Dougherty
  dougherty.greg...@mayo.eduwrote:
 
 
 
   This is my first entry in what will be a continuing series of pointing
   out GWT JavaDocs achieving Microsoftian levels of saying everything
   while explaining nothing.  Why? Because if you're going to actually
   write documentation, it shouldn't be totally worthless.
 
   KeyPressHandler: Handler interface for KeyPressEvent events
   KeyDownHandler: Handler interface for KeyDownEvent events
 
   KeyPressEvent : Represents a native key press event
   KeyDownEvent: Represents a native key down event
 
   Does anyone believe this documentation provides anything of value?
   I sure don't.  What I want to know is what is teh difference between
   these two things?  What, EXACTLY, is a KeyDownEvent?  How does it
   differ from  KeyPressEvent ?  When would I use one, when would I use
   the other?  Which one should I use if I want to fire off a command
   when the user hits Enter or Return?
 
   The first place most people are going to look to answer these
   questions is the JavaDoc.  If you're programming in Eclipse (and, if
   you're not, you're wasting a lot of time and killing your
   productivity), you get the JavaDoc whenever you hover over one of
   these objects, which means that the fist place to put anything and
   everything the user needs to know is there (you want to put it other
   places, too?  Great.  Disk space is cheap.  Programmer time is not).
 
   So, what IS the difference between the two?  Anyone know?  Because
   while I could make a guess, I'm not paid to guess, I'm paid to know.
   (And yes, I'd be quite happy to pay ~$50 to get JavaDoc for GWT that
   were something more

Re: Tutorial-Contacts2-2.1

2010-12-03 Thread Doug Kramer

Thanks for reporting this issue. This was a bogus download, so I
removed it.



There's no link to that file from the Developer Guide (only to
Tutorial-Contact.zip and Tutorial-Contact2.zip).
The file Tutorial-Contact2.zip covers both 2.0 and 2.1

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Re: Getting a user Enter key

Greg,

As I mentioned in a thread earlier today (
http://groups.google.com/group/google-web-toolkit/browse_thread/thread/82a98103dfa76528),
try using a KeyDownEvent handler and inspect
event.getNativeEvent().getKeyCode()
instead of event.getCharCode().

From the other thread, it sounds like this behavior may have changed in 2.1,
so it could be that the documentation is wrong, but only as of fairly
recently.

-Brian

On Fri, Dec 3, 2010 at 3:21 PM, Greg Dougherty
dougherty.greg...@mayo.eduwrote:

 Ok, the tutorial says that to get a user pressing an enter key in a
 TextBox you should write something like the following:

 http://code.google.com/webtoolkit/doc/latest/tutorial/manageevents.html

public void onKeyPress (KeyPressEvent event)
{
charkeyPress = event.getCharCode();
int keyCode = keyPress;
if (keyPress == KeyCodes.KEY_ENTER)
goToRecord ();
}

 Unfortunately, when I do that, I get a keyCode of 0 for  Enter, Tab,
 and Left Arrow (the keys I tested), while I get the actual key when I
 type a number key.  What gives?  Is the tutorial wrong?  If so, what
 should I be calling?

 TIA,

 Greg

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Re: Getting a user Enter key

2010-12-03 Thread David Chandler

Also see http://code.google.com/p/google-web-toolkit/issues/detail?id=5558for
a workaround.

/dmc

On Fri, Dec 3, 2010 at 3:36 PM, Brian Reilly brian.irei...@gmail.comwrote:

Greg,

As I mentioned in a thread earlier today (
http://groups.google.com/group/google-web-toolkit/browse_thread/thread/82a98103dfa76528),
try using a KeyDownEvent handler and inspect
event.getNativeEvent().getKeyCode()
instead of event.getCharCode().

From the other thread, it sounds like this behavior may have changed in
2.1, so it could be that the documentation is wrong, but only as of fairly
recently.

-Brian

On Fri, Dec 3, 2010 at 3:21 PM, Greg Dougherty dougherty.greg...@mayo.edu
wrote:

Ok, the tutorial says that to get a user pressing an enter key in a
TextBox you should write something like the following:

http://code.google.com/webtoolkit/doc/latest/tutorial/manageevents.html

public void onKeyPress (KeyPressEvent event)
{
charkeyPress = event.getCharCode();
int keyCode = keyPress;
if (keyPress == KeyCodes.KEY_ENTER)
goToRecord ();
}

Unfortunately, when I do that, I get a keyCode of 0 for Enter, Tab,
and Left Arrow (the keys I tested), while I get the actual key when I
type a number key. What gives? Is the tutorial wrong? If so, what
should I be calling?

TIA,

Greg

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Re: GWT JavaDoc failures KeyPress v. KeyDown

Hi David,

I must humbly disagree.  Maybe I just don't see enough Open Source
projects, but MySQL, which I use on a regular basis, has documentation
that is easy to search, has it all in one place, and does a good job
of explaining what's going on.

The GWT documentation, OTOH, in my experience NEVER gives you a
COMPLETE explanation on how to do anything.  Which I find very
frustrating, especially since I assume that, before you folks claim to
have created a feature, you've actually TESTED that feature, which
means that somewhere you must have the code that works out that
feature to its fullest extent.  Given that it's an open source
project, I honestly fail to see why you wouldn't make that test code
publicly available.

But if you have, I can't find it anywhere.

Take the CellTable for example.  Clearly the purpose of the thing is
to have something that lets you download chunks of data from a server,
and display it quickly.  So, what do all the examples for how to use
a CellTable show?  How to display local data.  Is there ANYONE,
ANYWHERE, who's going to use it for that purpose in an actual GWT
application?  So why is that the example?  Presumably someone's
actually written a GWT app that gets information from a servlet using
RPC.  Where is that code?

Or, take a really frustrating case, because it was SO close to being
great documentation.  You've got a nice code sample at
http://code.google.com/webtoolkit/doc/latest/DevGuideCodingBasicsHistory.html
You've got an entirely different one in the history JavaDoc.  Any
reason why they couldn't be combined in one example, that includes the
sample versions of addSelectionHandler and addValueChangeHandler that
the JavaDoc lack, AND includes the rather vital
History.fireCurrentHistoryState (); that the Coding Basics lack?

Personally, if I were writing things for an open source project, it
would be because I actually wanted people to use the things I was
writing.  So what's the point of writing great code if the
documentation is so poor that few people can figure out how to use it?

As for adding things to the project, there's a couple of problems with
that:
1: The places where I want something added to the documentation are
places where I don't know what the heck is going on.  So I'd be the
last person to add it.
2: My contract specifies that everything I write belongs to the people
paying me.  So I can't take the code I've written and add it to the
GWT code base / documentation, because I lack the rights to it.
3: I'm working 50 hours a week writing code.  By the time I get home,
I lack the mental energy necessary to write code for any purpose.

If you want to email me off list with a simple way to update the
JavaDocs with what I've learned and think I can legally offer, there's
some things I'd be happy to update.  But the key word there is
SIMPLE.  If it requires jumping through a lot of hoops, then I've got
much better things to do with my time.

Respectfully,

Greg

On Dec 3, 2:05 pm, David Chandler drfibona...@google.com wrote:
 Hi Greg,

 Prior to joining Google, I thought (and still do think) that the GWT
 developer guides are actually pretty rich for an open source project and
 many of the Javadocs, too. Of course, there are always holes and we welcome
 constructive feedback through the issue tracker.

 GWT is open source, so I hope you will contribute Javadocs as you find
 things that can be improved.

 /dmc

 On Fri, Dec 3, 2010 at 2:50 PM, Greg Dougherty
 dougherty.greg...@mayo.eduwrote:



  Jeff,

  Thank you.  That' lets me know which one I want to use.

  If I knew JavaScript and DOM, or, for that matter, even WANTED to know
  JavaScript and DOM, I wouldn't be using GWT, I'd be writing the
  JavaScript myself.  No?

  The whole point of using something like GWT is that it lets a Java
  programmer write a web app w/o having to learn all the crap that
  normal web app writers have to wade through.  That's certainly why I
  spent the time and effort to learn GWT.  For that matter, I presume
  that the people writing things like the KeyPressEventHandler DO know
  JavaScript and DOM.  So, really, how hard is it for them to put that
  knowledge into the documentation?  Isn't that what the documentation
  is THERE for?

  I write a JavaDoc header for every routine I write.  And the point of
  that header is to explain why it is that someone would be calling that
  routine, and what they'll get by calling it.  To my mind that's the
  MINIMUM that should be in any JavaDoc, and if you're not going to
  cover that, you should stop wasting time and just not write anything.
  Do you disagree?

  What % of the GWT JavaDoc actually answer those questions?  1%?  10%?

  Greg

  On Dec 3, 1:09 pm, Jeff Schwartz jefftschwa...@gmail.com wrote:
   KeyPress - triggered when the user presses a key and releases it (key
  down
   and then key up)
   KeyDown - triggered when the user presses the key (key down)

   Perhaps the documentation assumes some prior knowledge

Re: onResize issue with IE 7

2010-12-03 Thread PhilBeaudoin

Just found this issue which is basically recommending the same
workaround as the one proposed here:
http://code.google.com/p/google-web-toolkit/issues/detail?id=5245

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New book: Google App Engine Java and GWT Application Development

2010-12-03 Thread Supercobra Thatbytes

hi,

Some of you may be interested in a book I co-authored that has just
been published:
Google App Engine Java and GWT Application Development by Amy Unruh
and Daniel Guermeur, from Packt.

The book describes many of the techniques and approaches used to
develop GAE+GWT applications, and includes an app developed
throughout  the book as a running example. It has a particular focus
on some of the technologies useful for building scalable social-media-
oriented applications, including: MVP and UiBinder, using the Channel
API for push, using Facebook and Twitter OAuth for authorization, JDO,
the Task Queue, transactions and transactional tasks, Memcache, and
XMPP.


This is the Packt Publishing link:
- http://link.packtpub.com/5XWJBI

Book blog w/ table of contents:
- http://theconnectr.blogspot.com/

Enjoy.

-- Daniel

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MVP place/view/page navigation control: hardcode vs. declarative

2010-12-03 Thread Michael W

Since GWT 2.0, Google provides MVP pattern to develop large scale GWT
application.
However, the logic of navigating to the next view/page is hard coded
in the Java code.

For example of GWT 2.1.0 HelloMVP, first it requires to register all
places(view/page) with AppPlaceHistoryMapper, then the navigation
logic is embedded inside ViewImpl.

In order to navigation from hello to goodbye, the following piece of
code is needed in HelloViewImpl:

   listener.goTo(new GoodbyePlace(name));

As we know, for server side development, we can use struct-config.xml
for Struts and/or spring-servlet.xml for Spring MVC to control the
navigation.

Just wonder:
Is there any reason that MVP does not provide a similar approach like
Struts/Spring by using declarative config of navigation?

BR/

--Michael

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UiBinder Internationalization

2010-12-03 Thread Srividhya Ramachandran

I am having trouble with UiBinder Internationalization. I create a
LocalizableResource.properties file with messages and use keys for the
messages in the **.ui.xml files. Basically followed the steps in showcase
sample project and find that the messages are not being picked up from the
properties file, but still come from the ui.xml files.
Anybody experienced this problem before?
I read somewhere that in previous versions of GWT (i am using 2.1) the
messages for default locale always came from the ui.xml file even though you
provide a  .properties file. Is this still an issue? Thanks for taking the
time to read and reply.
V

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Re: Getting a user Enter key

Thank you both, that worked like a charm.

Greg

On Dec 3, 2:54 pm, David Chandler drfibona...@google.com wrote:
Also seehttp://code.google.com/p/google-web-toolkit/issues/detail?id=5558for
a workaround.

/dmc

On Fri, Dec 3, 2010 at 3:36 PM, Brian Reilly brian.irei...@gmail.comwrote:

Greg,

As I mentioned in a thread earlier today (
http://groups.google.com/group/google-web-toolkit/browse_thread/threa...),
try using a KeyDownEvent handler and inspect
event.getNativeEvent().getKeyCode()
instead of event.getCharCode().

From the other thread, it sounds like this behavior may have changed in
2.1, so it could be that the documentation is wrong, but only as of fairly
recently.

-Brian

On Fri, Dec 3, 2010 at 3:21 PM, Greg Dougherty dougherty.greg...@mayo.edu
wrote:

Ok, the tutorial says that to get a user pressing an enter key in a
TextBox you should write something like the following:

http://code.google.com/webtoolkit/doc/latest/tutorial/manageevents.html

public void onKeyPress (KeyPressEvent event)
{
char keyPress = event.getCharCode();
int keyCode = keyPress;
if (keyPress == KeyCodes.KEY_ENTER)
goToRecord ();
}

TIA,

Greg

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Re: CellTable composite Header

Mike -

Most of what you want to do is not supported yet, but we plan to add support
in GWT 2.2.

Thanks,
John LaBanca
jlaba...@google.com

On Fri, Dec 3, 2010 at 1:24 PM, manstis michael.ans...@gmail.com wrote:

Hi,

I'd like to make a composite Header for CellTable.

My requirements are:-
* Multiple rows

Planned for GWT 2.2.

* ColSpan in one of the multiple rows

Available in GWT 2.1.1, which is coming soon. If two headers == each other,
they will colspan.

* Multiple Clickable elements in each TH's TD

Sounds like a bug. Can you open an issue on the issue tracker for this.
Including a table in a Cell shouldn't affect events.

Naively my plan was to generate the required HTML in the Header's
render method and hook up clickHandlers to some of the elements;
however (obviously) the render method only returns HTML which is used
by CellTable to populate the inner HTML of elements already created
(namely the TH and TD elements).

Furthermore to provide the multi-row\colspan requirements I planned on
using the same Header for all columns (so CellTable spans all columns)
and generate HTML for a nested table - with multiple rows\colspan etc.
Provided the nested table's column widths match those of the CellTable
and I override CSS to remove padding and margins it gives the required
effect.

I also found that click events do not get raised when the Header
contains HTML for another table.

So, some questions:-
* Does anybody have advice on implementing composite headers?
* Can you attach Handlers to HTML elements created in a render method?
* How can I get Click Events to pass through to a nested HTML table?
* Would I be better off writing my own Widget rather than use
CellTable?

Thanks for reading this far.

Mike

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Re: Google's CellTree documentation - CellTreeExample2.java won't compile !

GWT 2.1.1 will add the Context parameter to Cell methods.  Its a breaking
change, but it allows us to pass the row index and cell index, and add more
variables in the future without another breaking change.

You can use the following example that is compatible with GWT 2.1.0.
http://google-web-toolkit.googlecode.com/svn/tags/2.1.0/user/javadoc/com/google/gwt/examples/cellview/CellTreeExample2.java

Thanks,
John LaBanca
jlaba...@google.com


On Fri, Dec 3, 2010 at 3:27 PM, metalhammer29a metalhammer...@gmail.comwrote:

 does anyone know how the problem mentioned can be fixed ?

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Re: CellTable, how to create a cell with custom listbox

You can create a Popup containing your list of options (some people have
used a vertical MenuBar as a list of selectable items). When the user
clicks on the Cell, open the Popup. When they select an option, close it.
DatePickerCell is a good example of this technique.

We'll probably include a CustomListBoxCell in a future version of GWT, but
it isn't on the agenda for GWT 2.2.

Thanks,
John LaBanca
jlaba...@google.com

On Fri, Dec 3, 2010 at 3:24 PM, savilak savi...@gmail.com wrote:

Can you please give me a hint on this?

On Nov 29, 6:22 pm, savilak savi...@gmail.com wrote:
I have to create a CellTable with cells that contain ListBoxes.

The issue is that I want each item of the listbox to contain an Image
and Text!
Standard ListBoxes does not allow us to use images at its items
(select optionItem 1/option /select).

What is the best approach I can follow to implement this?

Thank you for your time.

Savilak

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Re: Google's CellTree documentation - CellTreeExample2.java won't compile !

Thank you.

are GWT 2.1.1 features available to the public ?

Would be nice to look at what is going to be added in future releases,
and be prepared for changes.

I don't think I could find GWT 2.1.1 in the trunk.


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Best way to handle Hierarchical structures/queries in GWT + GAE Datastore

I have a Hierarchical structure, similar to Folders/Directories.

I am going to use CellTreeWidget for data presentation.
and planning to use RequestFactory/JDO/Google Data Store /GAE for
persistence/data access.


What is the best way to deal with this situation?

two approaches for the model that I could think of:

Approach #1:
class Folder {
String id;
String name;
Folder parent;
}

or
Approach #2:
class Folder {
String id;
String name;
Folder parent;
ListFolder children; // here we are keeping/references to the
children

}

with Approach #1:

Query #1: we Select Folders whose parent is null -- this gives us
the  list of top level folders

now that we have top level folders, every time user selects an item,
we can fetch child folders from the server

Query #2:
user selects a folder -- selects folders whose parent is the selected
folder

my concern is this approach could be slow, as upon each slection, user
has to wait for children (if any) to be fetched.

the alternative is to use Approach #2:

with this, since we are having references to children folders,when
user selects an item,
we already have its children. somehow like being one step ahead from
the user.


or better yet,
is is possible to issue Hierarchical Queries on App Engine datastore ?
so that with one single query, we can get multiple levels deep into
the tree structure ?


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Re: Google's CellTree documentation - CellTreeExample2.java won't compile !

We're working on GWT 2.1.1 in the GWT 2.1 release branch:
http://code.google.com/p/google-web-toolkit/source/browse/#svn/releases/2.1

All GWT 2.1.1 features are also available in the trunk. If you would like
to preview new features, you can checkout the 2.1 release branch or trunk by
following these instructions:
http://code.google.com/webtoolkit/makinggwtbetter.html#workingoncode

Remember that both trunk and the release branch are less stable than an
actual release. Also, we always upload a release candidate (and sometimes
beta) jars before we release, so you can also preview those jars.

Thanks,
John LaBanca
jlaba...@google.com

On Fri, Dec 3, 2010 at 5:10 PM, metalhammer29a metalhammer...@gmail.comwrote:

Thank you.

are GWT 2.1.1 features available to the public ?

Would be nice to look at what is going to be added in future releases,
and be prepared for changes.

I don't think I could find GWT 2.1.1 in the trunk.

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Re: Ship a GWT app as a desktop app with local server?

2010-12-03 Thread nino ekambi

Hello you Adobe AIR will perfectly fit your need. you can use adobe AIR with
GWT without any use of JavaScript using the library here :
http://code.google.com/p/gwt4air/

http://code.google.com/p/gwt4air/for any help feel free to contact me

Regards,

Alain

2010/12/3 Brian Reilly brian.irei...@gmail.com

As much as I like GWT, I think it might not be the right tool for your
situation.

Your two use cases are:

* Remote data and compute
* Local data and compute (unless you meant that desktop use would use
remote compute, but I don't think so because that would require transmitting
local data to the server)

One catch, though... I'm not sure if it's just their demos, but they
require Java 6, and they don't quite work in-browser on Mac OS X 10.5.
Supposedly they do work in 10.6, but I haven't upgraded yet so I can't
confirm. (See
http://mail-archives.apache.org/mod_mbox/pivot-user/201006.mbox/%3c8d8726ba-54bd-4745-87d1-40d067b34...@mac.com%3efor
the response to my question on the Pivot mailing list.)

-Brian

On Fri, Dec 3, 2010 at 1:36 PM, Gaurav Vaish gaurav.va...@gmail.comwrote:

Why not use Jetty (Embeddable, Lightweight Java Servlet Container -
cross platform).

--
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http://www.mastergaurav.com

On Dec 3, 10:09 pm, Brett Thomas brettptho...@gmail.com wrote:
Hi all, sort of an off beat question: what's the best cross-platform
library
for a local web server, that could effectively make a standard GWT app
into
a desktop app? Ideal would be super light weight, and just allow users
to
run the app offline, with local data. Language could be Java, C++ or
Python.

If curious about why such a library would be desired, some background at
the
end of the email...
Thanks for the help,
Brett

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SuggestBox is overengineered

2010-12-03 Thread George Georgovassilis

So I've been on a webapp of mine that does RPC, Google Maps, MVP, uses
a ton of stock and homebrewn widgets and plenty of other things,
touching most of the GWT API and, like in every other GWT App I've
done so far it also uses SuggestBox. And like in every other GWT App
I've written, I come to battle the usual cross browser compatibility
issues, double events firing, display issues etc [1] that haunt
SuggestBox.

A discouraging look at the SOYC report reveals that a whooping 17% of
the code volume is courtesy of SuggestBox  friends, so I decide to
write a (simpler) version (something like they [2] are doing) which
results in a 15% reduction of the gzipped code.

On a side note: this made me really appreciate the ingenuity of the
original SuggestBox author - there is a myriad of details one needs to
take care of, for instance keeping track of focus/blur events between
the listbox and textbox.


[1]
https://code.google.com/p/google-web-toolkit/issues/list?can=2q=suggestboxcolspec=ID+Type+Status+Owner+Milestone+Summary+Starscells=tiles

[2] http://www.airbnb.com/

[3]

import java.util.ArrayList;
import java.util.List;

import com.google.gwt.core.client.GWT;
import com.google.gwt.core.client.Scheduler;
import com.google.gwt.dom.client.Style.Unit;
import com.google.gwt.event.dom.client.BlurEvent;
import com.google.gwt.event.dom.client.BlurHandler;
import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.FocusHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.event.dom.client.KeyDownHandler;
import com.google.gwt.event.dom.client.KeyEvent;
import com.google.gwt.event.dom.client.KeyPressEvent;
import com.google.gwt.event.dom.client.KeyPressHandler;
import com.google.gwt.event.logical.shared.HasValueChangeHandlers;
import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.event.shared.HandlerRegistration;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.HasText;
import com.google.gwt.user.client.ui.ListBox;
import com.google.gwt.user.client.ui.SuggestOracle;
import com.google.gwt.user.client.ui.SuggestOracle.Request;
import com.google.gwt.user.client.ui.SuggestOracle.Response;
import com.google.gwt.user.client.ui.SuggestOracle.Suggestion;
import com.google.gwt.user.client.ui.TextBox;

public class SuggestBox extends Composite implements BlurHandler,
KeyDownHandler, ChangeHandler, ClickHandler,
SuggestOracle.Callback, FocusHandler, HasText,
HasValueChangeHandlersString {

private TextBox textbox = new TextBox();
private ListBox listOfSuggestions = new ListBox();
private SuggestOracle oracle;
private FlowPanel panel = new FlowPanel();
private Timer timer;
private boolean hasFocus;
private String lastAnnouncedValue = ;

public SuggestBox(SuggestOracle oracle) {
initWidget(panel);
this.oracle = oracle;
panel.add(textbox);
panel.add(listOfSuggestions);
setStyleName(SuggestBox);

listOfSuggestions.setVisibleItemCount(10);
//textbox.addKeyPressHandler(this);
textbox.addKeyDownHandler(this);
textbox.addFocusHandler(this);
listOfSuggestions.addFocusHandler(this);
listOfSuggestions.addChangeHandler(this);
listOfSuggestions.addClickHandler(this);
listOfSuggestions.addBlurHandler(this);
textbox.addBlurHandler(this);
hideListOfSuggestions();
}

private void hideListOfSuggestions() {
listOfSuggestions.removeStyleName(hidden);
listOfSuggestions.addStyleName(hidden);
}

private void showListOfSuggestions() {

listOfSuggestions.getElement().getStyle().setLeft(textbox.getAbsoluteLeft(),
Unit.PX);

listOfSuggestions.getElement().getStyle().setTop(textbox.getAbsoluteTop()
+ textbox.getOffsetHeight(), Unit.PX);
listOfSuggestions.removeStyleName(hidden);
}

private boolean isListOfSuggestionsShowing() {
return !listOfSuggestions.getStyleName().contains(hidden);
}

private void showSuggestions(String text) {
oracle.requestSuggestions(new SuggestOracle.Request(text), 
this);
}

private void showSuggestionsForCurrentText() {
if (timer != null)
timer.cancel();
timer =

equals and hashCode methods server and client side

2010-12-03 Thread Sydney

Hello,

I organized my project using a standard approach:
src/client
src/server
src/shared

I put my model classes into src/shared because they are used in RPC
calls. In some of them I generated the equals and hashCode methods
using eclipse. Then when I run my app I have an exception about
Float.floatToIntBits() method that does not exist in Float. I
understand why I got this exception because that method is not
supported client side. So I was wondering how I could replace that
method.

Snippet of hashCode(); alpha and beta are defined as float.

@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + Float.floatToIntBits(alpha);
result = prime * result + Float.floatToIntBits(beta);
result = prime * result
+ ((timestamp == null) ? 0 : timestamp.hashCode());
return result;
}

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Re: equals and hashCode methods server and client side

You can use gwt-hashcode-equals, which is  port of HashCodeBuilder and
EqualsBuilder from the Apache Commons project to Google Web Toolkit.

http://code.google.com/p/gwt-hashcode-equals/

your hashCode, equals,  would become a lot more cleaner too.

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Re: Calling EJB from RPC method

2010-12-03 Thread Gaurav Vaish

Hi,

I am not quite sure what's your EJB configuration and how are the
EJB's being loaded... but to me it seems that in the GWT-Service
method addCustomer you're working with a null pointer.

Note that GWT-RPC (server-side) will not automatically setup the bean.
You'll need to use the JNDI etc in your server code to ensure that the
bean is available.


Disclaimer: I am not an EJB expert. Albeit, I hate them
passionately. ;)


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http://www.mastergaurav.com


On Dec 3, 7:32 pm, dato.java david.chokhoneli...@gmail.com wrote:
 Hello ,

 I am developing simple GWT application with EJB 3.0 ,and user Apache
 Maven 3.0 , but my porblem is that when i try to call some ejb method
 from rpc method it fails with error:

 2010-12-03 18:26:34,698 ERROR [org.apache.catalina.core.ContainerBase.
 [jboss.web].[localhost].[/gwt-mvc-ui]] Exception while dispatching
 incoming RPC call
 com.google.gwt.user.server.rpc.UnexpectedException: Service method
 'public abstract java.lang.String
 david.chokhonelidze.gwt.mvc.ui.client.ApplicationService.addCustomer(java.lang.String)'
 threw an unexpected exception: java.lang.NullPointerException
         at
 com.google.gwt.user.server.rpc.RPC.encodeResponseForFailure(RPC.java:
 378)
         at
 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
 581)
         at
 com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:
 207)
         at
 com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:
 243)
         at
 com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:
 62)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:710)
         at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
 290)
         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
 206)
         at
 org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:
 96)
         at
 org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:
 235)
         at
 org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:
 206)
         at
 org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:
 230)
         at
 org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:
 175)
         at
 org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:
 182)
         at
 org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:
 84)
         at
 org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:
 127)
         at
 org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:
 102)
         at
 org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:
 157)
         at
 org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:
 109)
         at
 org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:
 262)
         at
 org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:
 844)
         at org.apache.coyote.http11.Http11Protocol
 $Http11ConnectionHandler.process(Http11Protocol.java:583)
         at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:
 446)
         at java.lang.Thread.run(Thread.java:662)
 Caused by: java.lang.NullPointerException
         at
 david.chokhonelidze.gwt.mvc.ui.server.ApplicationServiceImpl.addCustomer(ApplicationServiceImpl.java:
 26)
         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
         at
 sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
 39)
         at
 sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:
 25)
         at java.lang.reflect.Method.invoke(Method.java:597)
         at
 com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:
 562)
         ... 23 more

 I see that it cant inject my ejb, so what is solution?

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Re: Best way to handle Hierarchical structures/queries in GWT + GAE Datastore

forgot to add that my question is mainly toward Recursive entities.
what is the best data structure to use ?
(a Folder, can have Zero or Many Folders, and Zero or Many Documents)

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How do you style td elements in a CellTable?

2010-12-03 Thread James Moore

I'd like to apply styles like the ones in CellTable#renderRowValues,
but based on some conditions of my own.  The current set of a dozen or
so styles looks completely hardcoded in that method; there's no logic
in renderRowValues I see that would let me get in there and apply my
own style in addition to the dozen or so that are there.  Ideally I'd
like renderRowValues to just ask the cell what styles should be
applied to the td - is there a way to do that that I'm missing?

-- 
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ja...@restphone.com
http://jamesmoorecode.blogspot.com/

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CellTree How to render different cell types at a given level ?

How to implement this use case, which is also mentioned in Google
documentation ?
Each node has a Cell of a specific type; usually, all Cells at a
given level are of the same type, but that isn't required. [1]

I am using GWT CellTree.
public static class MyFolderTreeModel implements TreeViewModel

@Override
public T NodeInfo? getNodeInfo(T value)

in this method, I check each Node value

if( value instance of Folder)
//data provider
//render

return new DefaultNodeInfoFolder(dataProvider, cell);

The problem is, each Folder can contain child Folders AND Files.
but I can return only one from getNodeInfo.

Does anyone know how I can get around this problem ?


[1] 
http://code.google.com/webtoolkit/doc/latest/DevGuideUiCellWidgets.html#celltree

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Re: CellTree How to render different cell types at a given level ?

2010-12-03 Thread Subhrajyoti Moitra

http://google-web-toolkit.googlecode.com/svn/trunk/user/javadoc/com/google/gwt/examples/cellview/CellTreeExample2.java

see the code for this example. What you describe is implemented in the
example below, with 3 levels, (ie 3 different objects).
HTH.

Thanks,
Subhro.

On Sat, Dec 4, 2010 at 10:34 AM, metalhammer29a metalhammer...@gmail.comwrote:

 How to implement this use case, which is also mentioned in Google
 documentation ?
 Each node has a Cell of a specific type; usually, all Cells at a
 given level are of the same type, but that isn't required. [1]

 I am using GWT CellTree.
 public static class MyFolderTreeModel implements TreeViewModel

 @Override
 public T NodeInfo? getNodeInfo(T value)

 in this method, I check each Node value

 if( value instance of Folder)
 //data provider
 //render

 return new DefaultNodeInfoFolder(dataProvider, cell);

 The problem is, each Folder can contain child Folders AND Files.
 but I can return only one from getNodeInfo.

 Does anyone know how I can get around this problem ?


 [1]
 http://code.google.com/webtoolkit/doc/latest/DevGuideUiCellWidgets.html#celltree

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Re: CellTable, how to create a cell with custom listbox

2010-12-03 Thread Efstathios Kalyvas

Thank you very much John for pointing the direction.

I'll do it and share it.

On Fri, Dec 3, 2010 at 11:50 PM, John LaBanca jlaba...@google.com wrote:

We'll probably include a CustomListBoxCell in a future version of GWT, but
it isn't on the agenda for GWT 2.2.

Thanks,
John LaBanca
jlaba...@google.com

On Fri, Dec 3, 2010 at 3:24 PM, savilak savi...@gmail.com wrote:

Can you please give me a hint on this?

On Nov 29, 6:22 pm, savilak savi...@gmail.com wrote:
I have to create a CellTable with cells that contain ListBoxes.

The issue is that I want each item of the listbox to contain an Image
and Text!
Standard ListBoxes does not allow us to use images at its items
(select optionItem 1/option /select).

What is the best approach I can follow to implement this?

Thank you for your time.

Savilak

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[gwt-contrib] Re: Comment on RequestFactory_2_1_1 in google-web-toolkit


Comment by dain.kaplan:

Is there an expected release date for 2.1.1? I very much want to use the  
server-side AutoBean code.


For more information:
http://code.google.com/p/google-web-toolkit/wiki/RequestFactory_2_1_1

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[gwt-contrib] A couple of questions before getting started

2010-12-03 Thread Luis Solano

Hi
My name is Luis, I'm from Spain and I'm ready to contribute to GWT.

I have checked out the trunk and configured my eclipse as said here:
http://code.google.com/p/google-web-toolkit/source/browse/trunk/eclipse/README.txt.
I have set the checkstyle and the error/warning configuration and then
imported the gwt-user and gwt-dev projects. The problem is that I get
33 checkstyle problems and 3314 Java Problems (all warnings and the
first 100 are raw type warnings) in revision 9344. is this ok? if yes,
should this warnings be solved? And just in case, it's ok to send
patches with warnings? (I guess the answer is NO).

The other question is about the workspace encoding. I'm on a mac.
Should I leave the MacRoman encoding for my workspace or should I
change it to another like utf-8?

Thank you!
- Luis

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Re: [gwt-contrib] Breaking change proposed: future proofing Activity in 2.1.1

2010-12-03 Thread Neil Fuller

Full disclosure - I am the one who has suggested a possible evolution of
Activity. I was suggested the introduction of a mechanism to allow an
existing Activity to be informed when the Place has changed but the Activity
has not (e.g. when there is a change in Place tokens). I commented about how
difficult it would be to add a method to Activity without introducing a
break and Ray kindly started this thread.

I agree with Amir about the concerns. The AbstractActivity class and the
interface it implements has to have sensible, obvious, do-nothing
implementation otherwise subclasses have to override the behavior they don't
want and it all gets messy. Also, in Java we get to have one base class, so
extending AbstractActivity precludes extending something else. Several APIs
I've worked with have moved away from a design that requires developers to
extend a particular class. e.g. JUnit

Removal of the interface entirely would make mocking with frameworks like
EasyMock more difficult. Although things like the EasyMock classextension
make it possible to mock non-interfaces it's not ideal and obviously isn't
an option in a GWT test case.

Personally I'd like to try to keep the interface for these reasons. How
about the documentation is beefed up on the interface to say You should
extend AbstractActivity rather than implement Activity directly otherwise
you may be broken if it doesn't already, but leave the interface in place
for people who want to take on the risk of a break? I guess it depends on
how much Activity is expected to change in future. In the case I have in
mind to Activity the implementation would probably have an obvious no-op
implementation, but without having talked about that it's hard to be sure.
Luckily, I'm pretty sure that the use of AbstractActivity is what most
people will have done anyway.

I've just started looking at the Activity framework and this particular
wrinkle was the first we hit, but I wonder how many more things the
ActivityManager (and associated classes) would want to call on the Activity
interface so the need to evolve Activity much further may not be required. I
do agree that now would be a good time to do this kind of change, though,
because it's only going to get harder.

Neil.

On 3 December 2010 05:39, Amir Kashani amirkash...@gmail.com wrote:

 We've adopted the new MVP framework pretty heavily in a couple of new
 projects and at this point, I don't think we've ever not used
 AbstractActivity. So, as long as the existing methods in Activity don't
 become inaccessible to non-GWT code (i.e. not package protected or final), I
 don't see a problem.

 My only concern is that while making it an abstract class makes it easier
 to evolve, it also make it easier to default behavior that the end-user may
 not want. If a mechanism isn't provided to override this behavior, then
 someone may end up having to roll their own MVP framework for an otherwise
 minor issue. With a something as powerful and complex as this framework,
 that'd be a real shame. So, *please please please,* be cautious with this
 power: reasonable default behavior and the ability to override.

 Thanks!

 - Amir

 On Thu, Dec 2, 2010 at 7:55 PM, Ray Ryan rj...@google.com wrote:

 We're making a few breaking changes in 2.1.1 to the new features
 introduced in 2.1. (We're not supposed to do that kind of thing, but are
 hoping to get away with it in this quick follow up release before there is
 much adoption.)

 I'd like to add a change to Activity to that list, in order to allow it
 to evolve in later releases when breakage of any kind won't be an option:
 I'd like to make Activity an abstract class instead of an interface,
 basically rename AbstractActivity.

 Any objections?

 rjrjr

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[gwt-contrib] Fix external issues 5521, 5446, 5332, javadoc links (issue1186801)

2010-12-03 Thread rice


Reviewers: rchandia,

Description:
Fix external issues 5521, 5446, 5332, javadoc links


Please review this at http://gwt-code-reviews.appspot.com/1186801/show

Affected files:
  M user/src/com/google/gwt/dom/client/OptionElement.java
  M user/src/com/google/gwt/dom/client/Touch.java
  M user/src/com/google/gwt/event/dom/client/TouchEvent.java
  M user/src/com/google/gwt/i18n/client/LocalizableResource.java
  M user/src/com/google/gwt/i18n/client/Messages.java
  M user/src/com/google/gwt/user/client/ui/ImageBundle.java
  M user/src/com/google/gwt/user/server/rpc/RPCServletUtils.java


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[gwt-contrib] Comment on AutoBean in google-web-toolkit


Comment by larse...@gmail.com:

{{{
@Category(PersonCategory.class)
interface MyFactory {
  // Would be illegal without a category providing an implementation of  
doSomething()

  AutoBeanPerson person();
}
}}}

Shouldn't this read

{{{
@Category(PersonCategory.class)
interface MyFactory extends AutoBeanFactory{
  // Would be illegal without a category providing an implementation of  
marry(AutoBeanPerson person, Person spouse)

  AutoBeanPerson person();
}
}}}

For more information:
http://code.google.com/p/google-web-toolkit/wiki/AutoBean

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Re: [gwt-contrib] Breaking change proposed: future proofing Activity in 2.1.1

2010-12-03 Thread Ray Ryan

Let me push harder for the abstract class. If the class is documented to
forbid non-trivial default implementations, there would be no need to mock
it, and no chance of breaking people who decide to use the interface
directly for whatever reason.

WRT to the single base class problem, I was initially going to propose that
we also add interface IsActivity { Activity asActivity(); } and make
Activity implement it. But I didn't see any immediate use for it, since
nothing at the moment accepts an Activity as an argument, and nothing
returns one except for ActivityMapper. If such a need appeared it would be
trivial to add.

You buying it? Is the loss of easyMock too much?

On Fri, Dec 3, 2010 at 12:36 AM, Neil Fuller nful...@google.com wrote:

 Full disclosure - I am the one who has suggested a possible evolution of
 Activity. I was suggested the introduction of a mechanism to allow an
 existing Activity to be informed when the Place has changed but the Activity
 has not (e.g. when there is a change in Place tokens). I commented about how
 difficult it would be to add a method to Activity without introducing a
 break and Ray kindly started this thread.

 I agree with Amir about the concerns. The AbstractActivity class and the
 interface it implements has to have sensible, obvious, do-nothing
 implementation otherwise subclasses have to override the behavior they don't
 want and it all gets messy. Also, in Java we get to have one base class, so
 extending AbstractActivity precludes extending something else. Several APIs
 I've worked with have moved away from a design that requires developers to
 extend a particular class. e.g. JUnit

 Removal of the interface entirely would make mocking with frameworks like
 EasyMock more difficult. Although things like the EasyMock classextension
 make it possible to mock non-interfaces it's not ideal and obviously isn't
 an option in a GWT test case.

 Personally I'd like to try to keep the interface for these reasons. How
 about the documentation is beefed up on the interface to say You should
 extend AbstractActivity rather than implement Activity directly otherwise
 you may be broken if it doesn't already, but leave the interface in place
 for people who want to take on the risk of a break? I guess it depends on
 how much Activity is expected to change in future. In the case I have in
 mind to Activity the implementation would probably have an obvious no-op
 implementation, but without having talked about that it's hard to be sure.
 Luckily, I'm pretty sure that the use of AbstractActivity is what most
 people will have done anyway.

 I've just started looking at the Activity framework and this particular
 wrinkle was the first we hit, but I wonder how many more things the
 ActivityManager (and associated classes) would want to call on the Activity
 interface so the need to evolve Activity much further may not be required. I
 do agree that now would be a good time to do this kind of change, though,
 because it's only going to get harder.

 Neil.

 On 3 December 2010 05:39, Amir Kashani amirkash...@gmail.com wrote:

 We've adopted the new MVP framework pretty heavily in a couple of new
 projects and at this point, I don't think we've ever not used
 AbstractActivity. So, as long as the existing methods in Activity don't
 become inaccessible to non-GWT code (i.e. not package protected or final), I
 don't see a problem.

 My only concern is that while making it an abstract class makes it easier
 to evolve, it also make it easier to default behavior that the end-user may
 not want. If a mechanism isn't provided to override this behavior, then
 someone may end up having to roll their own MVP framework for an otherwise
 minor issue. With a something as powerful and complex as this framework,
 that'd be a real shame. So, *please please please,* be cautious with
 this power: reasonable default behavior and the ability to override.

 Thanks!

 - Amir

 On Thu, Dec 2, 2010 at 7:55 PM, Ray Ryan rj...@google.com wrote:

 We're making a few breaking changes in 2.1.1 to the new features
 introduced in 2.1. (We're not supposed to do that kind of thing, but are
 hoping to get away with it in this quick follow up release before there is
 much adoption.)

 I'd like to add a change to Activity to that list, in order to allow it
 to evolve in later releases when breakage of any kind won't be an option:
 I'd like to make Activity an abstract class instead of an interface,
 basically rename AbstractActivity.

 Any objections?

 rjrjr

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 Registered in England Number: 3977902

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[gwt-contrib] Re: Fix external issues 5521, 5446, 5332, javadoc links (issue1186801)

2010-12-03 Thread jat


LGTM


http://gwt-code-reviews.appspot.com/1186801/show

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Re: [gwt-contrib] A couple of questions before getting started

2010-12-03 Thread Scott Blum

On Thu, Dec 2, 2010 at 1:35 PM, Luis Solano luissolan...@gmail.com wrote:

 I have checked out the trunk and configured my eclipse as said here:

 http://code.google.com/p/google-web-toolkit/source/browse/trunk/eclipse/README.txt
 .
 I have set the checkstyle and the error/warning configuration and then
 imported the gwt-user and gwt-dev projects. The problem is that I get
 33 checkstyle problems and 3314 Java Problems (all warnings and the
 first 100 are raw type warnings) in revision 9344. is this ok? if yes,
 should this warnings be solved? And just in case, it's ok to send
 patches with warnings? (I guess the answer is NO)


It's sort of a known-issue broken-window.  Some of them stem from
third-party code that has come into GWT, such as Rhino or ASM.  Removing
warnings in original GWT code is generally a Good Thing.


 The other question is about the workspace encoding. I'm on a mac.
 Should I leave the MacRoman encoding for my workspace or should I
 change it to another like utf-8?


All GWT java source is UTF-8, so definitely use that.

Scott

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Re: [gwt-contrib] A couple of questions before getting started

2010-12-03 Thread Stephen Haberman


 Some of them stem from third-party code that has come into GWT, such
 as Rhino or ASM.

I've been crossing my fingers about this feature for awhile now:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=220928

(No idea if the 3rd party code is currently in separate source folders,
but it might be worth moving it over to separate folders just to ignore
the warnings, when/if this feature ever ships.)

- Stephen


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[gwt-contrib] Undeprecate HandlerManager and TabPanel, neither of which is quite (issue1187801)

2010-12-03 Thread rjrjr


Reviewers: jlabanca,

Description:
Undeprecate HandlerManager and TabPanel, neither of which is quite
ready to die yet.


Please review this at http://gwt-code-reviews.appspot.com/1187801/show

Affected files:
  M user/src/com/google/gwt/event/shared/HandlerManager.java
  M user/src/com/google/gwt/user/client/ui/TabPanel.java
  M user/src/com/google/gwt/user/client/ui/Widget.java


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[gwt-contrib] Re: Undeprecate HandlerManager and TabPanel, neither of which is quite (issue1187801)

2010-12-03 Thread rjrjr


John, there have been internal discussions about both of these
un-deprecations. Joel wants TabPanel to be blessed again, and we lack
any alternative to HandlerManager for widget developers so far.

On 2010/12/03 18:47:12, rjrjr wrote:




http://gwt-code-reviews.appspot.com/1187801/show

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[gwt-contrib] Re: Undeprecate HandlerManager and TabPanel, neither of which is quite (issue1187801)

2010-12-03 Thread rjrjr


http://code.google.com/p/google-web-toolkit/issues/detail?id=5709

http://gwt-code-reviews.appspot.com/1187801/show

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[gwt-contrib] [google-web-toolkit] r9353 committed - Fixes two issues...


Revision: 9353
Author: rchan...@google.com
Date: Fri Dec  3 03:56:03 2010
Log: Fixes two issues
Issue 5460: Scaffold app expenses does not store decimal values
Issue 5663: DoubleParser rounds values to integers
Thanks to t.bro...@gmail.com

Review at http://gwt-code-reviews.appspot.com/1181802

http://code.google.com/p/google-web-toolkit/source/detail?r=9353

Modified:
 /trunk/user/src/com/google/gwt/text/client/DoubleParser.java
 /trunk/user/test/com/google/gwt/text/client/DoubleParserTest.java

===
--- /trunk/user/src/com/google/gwt/text/client/DoubleParser.java	Fri Oct  8  
06:15:38 2010
+++ /trunk/user/src/com/google/gwt/text/client/DoubleParser.java	Fri Dec  3  
03:56:03 2010

@@ -46,7 +46,7 @@
 }

 try {
-  return  
Math.rint(NumberFormat.getDecimalFormat().parse(object.toString()));

+  return NumberFormat.getDecimalFormat().parse(object.toString());
 } catch (NumberFormatException e) {
   throw new ParseException(e.getMessage(), 0);
 }
===
--- /trunk/user/test/com/google/gwt/text/client/DoubleParserTest.java	Tue  
Oct  5 17:59:14 2010
+++ /trunk/user/test/com/google/gwt/text/client/DoubleParserTest.java	Fri  
Dec  3 03:56:03 2010

@@ -30,7 +30,7 @@
   }

   public void testOuroborus() throws ParseException {
-assertEquals(123,  
DoubleRenderer.instance().render(DoubleParser.instance().parse(123)));
+assertEquals(123.5,  
DoubleRenderer.instance().render(DoubleParser.instance().parse(123.5)));

   }

   public void testNull() throws ParseException {

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[gwt-contrib] [google-web-toolkit] r9354 committed - In CompilingClassLoader, refuse to load a class if its compilation uni...


Revision: 9354
Author: con...@google.com
Date: Fri Dec  3 05:03:49 2010
Log: In CompilingClassLoader, refuse to load a class if its compilation  
unit has errors.


Review at http://gwt-code-reviews.appspot.com/1167801

Review by: sco...@google.com
http://code.google.com/p/google-web-toolkit/source/detail?r=9354

Modified:
 /trunk/dev/core/src/com/google/gwt/dev/shell/CompilingClassLoader.java

===
--- /trunk/dev/core/src/com/google/gwt/dev/shell/CompilingClassLoader.java	 
Wed Dec  1 13:52:36 2010
+++ /trunk/dev/core/src/com/google/gwt/dev/shell/CompilingClassLoader.java	 
Fri Dec  3 05:03:49 2010

@@ -1018,10 +1018,7 @@

 // Get the bytes, compiling if necessary.
 byte[] classBytes = findClassBytes(className);
-if (classBytes == null) {
-  throw new ClassNotFoundException(className);
-}
-
+
 if (HasAnnotation.hasAnnotation(classBytes, GwtScriptOnly.class)) {
   scriptOnlyClasses.add(className);
   maybeInitializeScriptOnlyClassLoader();
@@ -1113,7 +1110,7 @@
   }

   @SuppressWarnings(deprecation)
-  private byte[] findClassBytes(String className) {
+  private byte[] findClassBytes(String className) throws  
ClassNotFoundException {

 if (JavaScriptHost.class.getName().equals(className)) {
   // No need to rewrite.
   return javaScriptHostBytes;
@@ -1136,6 +1133,12 @@

 CompilationUnit unit = (compiledClass == null)
 ? getUnitForClassName(lookupClassName) : compiledClass.getUnit();
+
+if (unit != null  unit.isError()) {
+  throw new ClassNotFoundException(Cannot load class  + className
+  +  because it has errors.);
+}
+
 if (emmaAvailable) {
   /*
* build the map for anonymous classes. Do so only if unit has  
anonymous

@@ -1148,11 +1151,10 @@
unit.hasAnonymousClasses()  jsniMethods != null
jsniMethods.size()  0  !unit.createdClassMapping()) {
 if (!unit.constructAnonymousClassMappings(logger)) {
-  logger.log(TreeLogger.ERROR,
+  throw new ClassNotFoundException(
   Our heuristic for mapping anonymous classes between  
compilers 
   + failed. Unsafe to continue because the wrong jsni  
code 

   + could end up running. className =  + className);
-  return null;
 }
   }
 }
@@ -1199,6 +1201,10 @@
   }
   classBytes = newBytes;
 }
+
+if (classBytes == null) {
+  throw new ClassNotFoundException(className);
+}
 return classBytes;
   }

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[gwt-contrib] [google-web-toolkit] r9355 committed - Adding methods to insert columns, get the column count, and get column...


Revision: 9355
Author: jlaba...@google.com
Date: Fri Dec  3 05:16:36 2010
Log: Adding methods to insert columns, get the column count, and get  
columns by index in a CellTable. Thesemethods are very useful for changing  
the visible Columns.  Currently, users must remove all columns, then re-add  
them just to insert a single column.


Review at http://gwt-code-reviews.appspot.com/1181801

Review by: sbruba...@google.com
http://code.google.com/p/google-web-toolkit/source/detail?r=9355

Modified:
 /trunk/user/src/com/google/gwt/user/cellview/client/CellTable.java
 /trunk/user/test/com/google/gwt/user/cellview/client/CellTableTest.java

===
--- /trunk/user/src/com/google/gwt/user/cellview/client/CellTable.java	Wed  
Dec  1 05:40:20 2010
+++ /trunk/user/src/com/google/gwt/user/cellview/client/CellTable.java	Fri  
Dec  3 05:16:36 2010

@@ -592,91 +592,59 @@
   }

   /**
-   * Adds a column to the table.
+   * Adds a column to the end of the table.
*
* @param col the column to be added
*/
   public void addColumn(ColumnT, ? col) {
-addColumn(col, (Header?) null, (Header?) null);
+insertColumn(getColumnCount(), col);
   }

   /**
-   * Adds a column to the table with an associated header.
+   * Adds a column to the end of the table with an associated header.
*
* @param col the column to be added
* @param header the associated {...@link Header}
*/
   public void addColumn(ColumnT, ? col, Header? header) {
-addColumn(col, header, null);
+insertColumn(getColumnCount(), col, header);
   }

   /**
-   * Adds a column to the table with an associated header and footer.
+   * Adds a column to the end of the table with an associated header and  
footer.

*
* @param col the column to be added
* @param header the associated {...@link Header}
* @param footer the associated footer (as a {...@link Header} object)
*/
   public void addColumn(ColumnT, ? col, Header? header, Header?  
footer) {

-headers.add(header);
-footers.add(footer);
-columns.add(col);
-boolean wasinteractive = isInteractive;
-updateDependsOnSelection();
-
-// Move the keyboard selected column if the current column is not
-// interactive.
-if (!wasinteractive  isInteractive) {
-  keyboardSelectedColumn = columns.size() - 1;
-}
-
-// Sink events used by the new column.
-SetString consumedEvents = new HashSetString();
-{
-  SetString cellEvents = col.getCell().getConsumedEvents();
-  if (cellEvents != null) {
-consumedEvents.addAll(cellEvents);
-  }
-}
-if (header != null) {
-  SetString headerEvents = header.getCell().getConsumedEvents();
-  if (headerEvents != null) {
-consumedEvents.addAll(headerEvents);
-  }
-}
-if (footer != null) {
-  SetString footerEvents = footer.getCell().getConsumedEvents();
-  if (footerEvents != null) {
-consumedEvents.addAll(footerEvents);
-  }
-}
-CellBasedWidgetImpl.get().sinkEvents(this, consumedEvents);
-
-redraw();
+insertColumn(getColumnCount(), col, header, footer);
   }

   /**
-   * Adds a column to the table with an associated String header.
+   * Adds a column to the end of the table with an associated String  
header.

*
* @param col the column to be added
* @param headerString the associated header text, as a String
*/
   public void addColumn(ColumnT, ? col, String headerString) {
-addColumn(col, new TextHeader(headerString), null);
+insertColumn(getColumnCount(), col, headerString);
   }

   /**
-   * Adds a column to the table with an associated {...@link SafeHtml} header.
+   * Adds a column to the end of the table with an associated {...@link  
SafeHtml}

+   * header.
*
* @param col the column to be added
* @param headerHtml the associated header text, as safe HTML
*/
   public void addColumn(ColumnT, ? col, SafeHtml headerHtml) {
-addColumn(col, new SafeHtmlHeader(headerHtml), null);
+insertColumn(getColumnCount(), col, headerHtml);
   }

   /**
-   * Adds a column to the table with an associated String header and  
footer.
+   * Adds a column to the end of the table with an associated String  
header and

+   * footer.
*
* @param col the column to be added
* @param headerString the associated header text, as a String
@@ -684,12 +652,12 @@
*/
   public void addColumn(ColumnT, ? col, String headerString,
   String footerString) {
-addColumn(col, new TextHeader(headerString), new  
TextHeader(footerString));

+insertColumn(getColumnCount(), col, headerString, footerString);
   }

   /**
-   * Adds a column to the table with an associated {...@link SafeHtml} header  
and

-   * footer.
+   * Adds a column to the end of the table with an associated {...@link  
SafeHtml}

+   * header and footer.
*
* @param col the column to be added
* @param headerHtml the associated header text, as

[gwt-contrib] [google-web-toolkit] r9356 committed - Fix external issues 5521, 5446, 5332, javadoc links...