from:"Sudeep S"

Re: launching in a new tab/broswer

2010-04-22 Thread Sudeep S

for ur second point ...u can create your custom command implement all the
logic in one execute block

On Fri, Apr 23, 2010 at 1:04 AM, Stefan Bachert stefanbach...@yahoo.dewrote:

Hi,

you can create a new window. (Window.open)
But as far as I remember, you can not control whether the new browser
window is a further tab or a separate window.

Stefan Bachert
http://gwtworld.de

On 21 Apr., 20:10, Vik vik@gmail.com wrote:
Hie

I am using menu like:

MenuBar aboutMenu = new MenuBar(true);
aboutMenu.addItem(Dreamweavers..., new Command(){

@Override
public void execute() {
Window.Location.replace(http://sakshum.blogspot.com;);
}

});

But this opens the link at the same place. how to open in a new tab?

Also do i have to write this much code for each menu item i create?

Thankx and Regards

Vik
Founderwww.sakshum.comwww.sakshum.blogspot.comhttp://founderwww.sakshum.comwww.sakshum.blogspot.com/

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Re: image help

2010-03-29 Thread Sudeep S

i am not sure if this is a right approach...how about placing a transparent
div over the image.
would that work.

On Tue, Mar 30, 2010 at 12:22 AM, Chris thechris...@gmail.com wrote:

 does anyone know if there is a way to disable someone from right
 clicking on an image and being able to save it?  i am trying to make
 an application where people can purchase images but if they can just
 right click it and Save Image As there isn't any point.  Any
 suggestions would be great.

 thanks

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Re: Passing parameter via POST

2010-03-24 Thread Sudeep S

HI Vincent,

I had a similar requirement, i've used a intermediate servlet to which the
data was posted ...the parameters were picked and stored in session and
later retrieved from gwt servlet.

had to follow this approach because gwt servlet doesnt take POST method.

Thanks
Sudeep

On Wed, Mar 24, 2010 at 2:22 AM, Vincent vyau5...@gmail.com wrote:

 Hi:

 I am new to GWT so please excuse this stupid question.

 I have a GWT app that I can jump from page to page.  On one page, I
 want to jump to another page with a set of parameters but I do not
 want to pass them via GET.  I like to use POST.  Is there a way to
 redirect a page in GWT with a set of parameters?

 Thanks

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Re: How to capture that the user has moved away from the current browser window.

2010-03-18 Thread Sudeep S

have you tried hiding the suggestions on blur event, to my knowledge that is
fired when the user moves away from the current window

On Fri, Mar 19, 2010 at 9:50 AM, subhro subhrajyo...@gmail.com wrote:

Hello,
I am trying to implement a google.com search form style auto-suggest
box.

I have reached a stage where the drop down with suggestions appear
correctly.
However on changing windows (click on any other app window on the
desktop) The or click any where else other that the body of the
page, DOES NOT close the drop down. I would idealy like to close this
drop down the moment the user clicks on anything else other than the
current application page

Using firebug i found that google uses a hidden table, to display all
the suggestions. It sets the visibility to hidden the moment the user
moves away from the current window to any other window. How do you
detect that the user has moved away from the current window?

Onblur of the auto-suggest textfield does not seem to work in this
case.

How are gwt experts on this list solving this loss of focus on the
current browser window event in the any GWT page?

Any pointers in this direction would be appreciated.

Thanks,
Subhro.

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Re: Inter-frame communication

2010-03-18 Thread Sudeep S

hey Jonny,

jquery has a plugin for window.post that works for all browsers.
i've used that with gwt for resizing cross domain iframe.
you can give that a shot.

On Thu, Mar 18, 2010 at 2:08 PM, jjh j...@42quarks.com wrote:

Hi,

I am wanting allow extensions to my website (essentially third-party
javascript code that can provide response to certain events, sort of
simplified, gui-less gadgets). It seems like the safest way to this is
to use iframes and inter-frame communication to limit what the third-
party code can do (to some extent).

So now I need to be able to post events to the gadget-frames and
receive responses (basically RPC between frames). I know this can be
done in javascript using postMessage (window.name hacks for older
browsers). But I'm not sure what the best way to do this in GWT is.
Does anyone have any pointers for a clean way of doing this in GWT.

Regards,
Jonny

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Re: How to center a button widget in a Panel.

2010-03-14 Thread Sudeep S

just ensure that the new panel that you have added is occupying all the
width of the parent panel.

set a border width to check that.

On Sun, Mar 14, 2010 at 4:50 AM, Rob34226 rob34...@gmail.com wrote:

 I have a DialogBox with a vertical panel.  The last thing I added was
 a button that I want to be centered.  I tried to put the button in a
 another panel and then setHorizontalAlignmnet(center) that panel in
 the parent panel but it still doesn't work.  How do you center widgets
 or set any alignment for GWT widgets? Thanks

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Help on SuggestBox

2010-02-22 Thread Sudeep S

Hi All,

I have a use case wherein there are 2 suggestboxes and the requirement is
such that the user can either select one of the suggestions or can even
input his own. When a suggestion is selected from box1, box2 is populated.
Now if the user types his own then its called as non standard suggestion and
box2 is not populated. and the same applies to box2 as well. if an option is
selected in box2 other details are fetched else if the user types his
own, they are not fetched..

on both the cases when the user enters a non standard suggestion an alert is
to be displayed saying that he is selecting a non std suggestions.

there is also one more condition that after selecting box2 if the user goes
back to change box1, all the subsequent fields are to be reset.

take the simple case of manufacturer , model , accessory and price as we see
in shopping cart

Now how can this be achieved.
On what event(s)  can i  do the validation as to what the user entered is
standard or non standard.

I've been on this one for 3-4 days now and i dont seem to get this thing rt.

Any recommendations/suggestions are welcome

Thanks
Sudeep

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Re: Get data of widgets in a Panel or dynamically determine their class

2010-02-10 Thread Sudeep S

you can try checking widget.isAttached on all the widgets.

the one widget that is added will return you a true.

now that you know the widget you can retrieve the data entered.

hope it helps

Sudeep

On Wed, Feb 10, 2010 at 9:23 PM, mrubioroy mrubio...@gmail.com wrote:

 Hi all,
  I'm dynamically adding different widgets (TextBox, CheckBox or
 TextArea) to a Panel, depending on the columns found in an SQL table.
 Once the different fields are filled up by the user and the Save
 button is clicked, the code must collect all the introduced data and
 send it to server side.
  The problem I have is: How do I access data on every widget without
 knowing what class is each one? That is, I can have access to any
 widget in the Panel, using the getWidget method:
 myPanel.getWidget(i)
  But how do I access data? I've tried something like
 TextBox myWidget;
 myWidget = (TextBox) myPanel.getWidget(i);
 String data = myWidget.getText();
  But this generates an exception if the Widget is of type CheckBox,
 because it cannot be cast to TextBox class.
  If I could determine the class of myPanel.getWidget(i), then I would
 use some if's to cast that to whatever class it's needed.

 Thanks

 Miguel

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Re: Using the ReCaptcha Java API with GWT 2.0

2010-01-18 Thread Sudeep S

is ReCaptcha a gwt library or a simple java library.
gwt module dicatates that source code be present in the lib that
is refererred.

On Tue, Jan 19, 2010 at 1:21 AM, jfagh jfa...@gmail.com wrote:

I am trying to integrate the opensource ReCaptcha on my GWT 2.0 app. I
followed the instructions given at:
http://wiki.recaptcha.net/index.php/Overview#Java.2FJSP
And just like any added module, I added its JAR file to the lib
directory and to the classpath.
When I try to run the app with a new ReCaptcha object I get a run-time
error:
[ERROR] No source code is available for type
net.tanesha.recaptcha.ReCaptcha; did you forget to inherit a required
module?
I am not sure if I am supposed to modify the app.gwt.xml or is it just
that the ReCaptcha java library uses some methods that cannot be
translated into js by the GWT compiler.
Please help if you have any ideas.
Thank you.
James

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Re: Using the ReCaptcha Java API with GWT 2.0

2010-01-18 Thread Sudeep S

gwt compiles your java to javascript so the source code should be present in
that captcha.jar
its not sufficient if it has only .class files.
also it should have a gwt module.xml.

hope this helps

thanks
Sudeep
On Tue, Jan 19, 2010 at 1:44 AM, jfagh jfa...@gmail.com wrote:

Hi Sudeep,
ReCaptcha is just a Java library. I added its JAR file to the lib/
folder and to the classpath.
When reference methods from the library, the IDE doesn't complain but
when I run the app it gives the error I listed above.
I am not sure what you mean by: gwt module dicatates that source code
be present in the lib that is refererred.
Thanks.
James

On Jan 18, 1:59 pm, Sudeep S sudee...@gmail.com wrote:
is ReCaptcha a gwt library or a simple java library.
gwt module dicatates that source code be present in the lib that
is refererred.

On Tue, Jan 19, 2010 at 1:21 AM, jfagh jfa...@gmail.com wrote:
I am trying to integrate the opensource ReCaptcha on my GWT 2.0 app. I
followed the instructions given at:
http://wiki.recaptcha.net/index.php/Overview#Java.2FJSP
And just like any added module, I added its JAR file to the lib
directory and to the classpath.
When I try to run the app with a new ReCaptcha object I get a run-time
error:
[ERROR] No source code is available for type
net.tanesha.recaptcha.ReCaptcha; did you forget to inherit a required
module?
I am not sure if I am supposed to modify the app.gwt.xml or is it just
that the ReCaptcha java library uses some methods that cannot be
translated into js by the GWT compiler.
Please help if you have any ideas.
Thank you.
James

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Re: Using the ReCaptcha Java API with GWT 2.0

2010-01-18 Thread Sudeep S

forgot to ask,

are u using this library in the client side or the server side.
all that i told is applicable only if u are using it in the client side.
on the server side u can use it like a normal jar

On Tue, Jan 19, 2010 at 8:57 AM, Sudeep S sudee...@gmail.com wrote:

gwt compiles your java to javascript so the source code should be present
in that captcha.jar
its not sufficient if it has only .class files.
also it should have a gwt module.xml.

hope this helps

thanks
Sudeep
On Tue, Jan 19, 2010 at 1:44 AM, jfagh jfa...@gmail.com wrote:

On Jan 18, 1:59 pm, Sudeep S sudee...@gmail.com wrote:
is ReCaptcha a gwt library or a simple java library.
gwt module dicatates that source code be present in the lib that
is refererred.

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Composite and Resize event.

2010-01-07 Thread Sudeep S

Hi

I have a vertical panel which has multiple sections and each of them is a
composite. There is an option to add or remove records from these
sections.how can the container panel be reiszed/notified with the events in
the section composite. Any suggestions solutions ideas
are welcome.

Thanks
Sudeep
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Re: pls help !!!!!!!!!!

2010-01-06 Thread Sudeep S

use -style PRETTY and -logLevel DEBUG to get detailed messages

On Wed, Jan 6, 2010 at 11:33 PM, ben fenster fenster@gmail.com wrote:

 i send them they work ok in hosted but in compiled when i get to check
 status  i get exception the site is www.vzooo.com  if anyone can check
 it out and see i will apreceate it

 it is relly strange  i noticed that the gwt compile only compiles 5
 out of 6 permutations but it says compiled ok  is ther a way to get
 more detailed compile log

 On Jan 6, 7:53 pm, mariyan nenchev nenchev.mari...@gmail.com wrote:
  What do you mean by  all of the http request does not work
 
   On Wed, Jan 6, 2010 at 7:49 PM, ben fenster fenster@gmail.com
 wrote:
   how can it be that something runs great in hosted from the browser  it
   self but dont work in compile ???
 
   On Jan 6, 7:21 pm, ben fenster fenster@gmail.com wrote:
i am also using smart gwt could this be the reason for  my problems?
 
On Jan 6, 7:15 pm, olivier nouguier olivier.nougu...@gmail.com
wrote:
 
 euh your backend is full php ? If true I have no knowlegde :(
 
 On Wed, Jan 6, 2010 at 6:11 PM, ben fenster fenster@gmail.com
 
   wrote:
  i use it and no errors there also i am accessing php pages threw
 http
  request the php works ok and when i use it in hosted mode every
 thing
  is great but when i use it in compile nothing works
 
  On Jan 6, 7:03 pm, olivier nouguier olivier.nougu...@gmail.com
  wrote:
   You should use firebug to learn more !
 
   On Wed, Jan 6, 2010 at 5:55 PM, ben fenster 
 fenster@gmail.com
 
  wrote:
i have a presentation tomorrow and every thing works great i
 am
   using
gwt 2.0 but when i compile and run from the compiled version
 all
   of
the http request does not work
 
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Re: Hosting GWT app on an external site

2009-12-08 Thread Sudeep S

I guess you would have to add linker = xs in the .gwt.xml

thanks
Sudeep

On Tue, Dec 8, 2009 at 4:59 AM, Jay kry...@tpg.com.au wrote:

Hi,
I'm new to GWT and have been struggling with this issue for a while
now. I'd like to compile my GWT application so that other sites can
include my GWT application via a simple script tag

eg.
script type=text/javascript src=http://mydomain.com/MyGWTApp.js;/
script
script type=text/javascript

var myApp = new MyApp.init();
myApp.run();
/script

I've tried just using the MyGWTApp.nocache.js in external sites, but
this does not work. My guess is MyGWTApp.nocache.js can not load the
other resources (ie. other js files) that it needs?

Cheers

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Testing GWT

2009-12-07 Thread Sudeep S

Good Day,

I am new to GWT. Just as I thought I have crossed the first hurdle of
making a gwt application, the second big challenge is already staring in my
face. TDD might not be the right word with the approach that i am following
since i have almost completed development. But i would like to know what
should be tested in gwt. Is it the UI or the RPC calls.
Unit test or Integration test.

Links to any good references, blogs would be welcome.

Thanks
Sudeep

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Re: flextable getcellcount and clear issue...

2009-11-26 Thread Sudeep S

can u post the code snippet for clearing cells.

i guess you might be doing table.clear .. that only removes the widgets from
the cells but the not cell as a whole

 u can try doing table.removeRow(index);
On Thu, Nov 26, 2009 at 11:46 AM, golfdude padysr...@gmail.com wrote:


 gwt 1.7...

 I have a flextable in which I add a row, clear the table, and then add
 another row. The getCellCount does not get reset during the second add
 to zero. So the cells get added after the first col count.

 Anybody else see this ? I see that this was reported as a bug in 2006
 but I still see the issue.


 gd

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Re: MenuBar in a Flextable cell

2009-11-24 Thread Sudeep S

Thanks a lot for your inputs Brian.

Yes I am using an absolute panel for positioning.

There seems to be a simple way to deal with this.

A menubar inside a menubar did the trick.

A menu bar with the list of items is added to a parent menubar and that
parent menubar is placed inside the cell.

It works like a charm.

thanks for ur suggestions once again

Thanks
Sudeep

On Tue, Nov 24, 2009 at 10:26 PM, Brian brian.irei...@gmail.com wrote:

I haven't had a need to be too picky about positioning, so I'm not
sure what the tricky conditions are (though I'm sure they're there).
You didn't mention how you're doing your positioning, but I can
imagine you're using either AbsolutePanel or PopupPanel. I had
suggested PopupPanel because it has a showRelativeTo(UIObject) method
that might be helpful. According to the docs, though:

from

http://google-web-toolkit.googlecode.com/svn/javadoc/1.6/com/google/gwt/user/client/ui/PopupPanel.html#showRelativeTo(com.google.gwt.user.client.ui.UIObject)

Normally, the popup is positioned directly below the relative target,
with its left edge aligned with the left edge of the target. Depending
on the width and height of the popup and the distance from the target
to the bottom and right edges of the window, the popup may be
displayed directly above the target, and/or its right edge may be
aligned with the right edge of the target.

So it looks like the algorithm that it uses for positioning may be too
variable for your needs.

One final note is that, assuming you manage to cover up the link in
the table cell, you probably don't have to remove it, which might
cause the table to shift around.

-Brian

On Nov 23, 1:12 pm, Sudeep S sudee...@gmail.com wrote:
Thank you for your suggestion.

i am trying a similar approach for this one.

instead of having a menu bar in the cell i have placed a simple link in
the
cell and when it is clicked, i capture the cell and the absolute position
of
link that is clicked.

With the absolute position of the link inhand i delete the link and place
my
menubar at that position.

having little trouble with positioning though.

thanks
Sudeep

On Mon, Nov 23, 2009 at 7:36 PM, Brian brian.irei...@gmail.com wrote:
Sounds like a tricky problem. I haven't worked with menu bars so I'm
not sure this will work. What I'm thinking is that you could use a
placeholder menu bar in the table cell that doesn't have any menu
items. Then, when that is clicked on, display a PopupPanel with the
real menu bar and position it relative to the placeholder menu bar.
You may have to play with styling on the PopupPanel to remove any
decoration and/or margins to get the effect right. You'll also have to
capture which menu item (assuming there's more than one) was clicked
on the placeholder and simulate a click on the corresponding item in
the real menu bar.

Or maybe you can do away with the menu bar in the table cell
altogether and make your own drop-down menu using PopupPanels. It
depends on what you're looking for in terms of user interface feel.

-Brian

On Nov 22, 10:56 am, Sudeep S sudee...@gmail.com wrote:
Hi,

I have a req wherein I have to add a menubar widget to every row in a
flextable. When the menubar is clicked it opens but it also expands
the
cell in which it is placed distorting the layout.

Any ideas on this one.

Thanks
Sudeep

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Re: gwt + jquery rounded corner

2009-11-23 Thread Sudeep S

my Mistake

i called the roundCorner() method before RootPanel.*get*().add(a);
it worked now ..when i called it after doing RootPanel.*get*().add(a);
Thanks
Sudeep


2009/11/23 Дмитрий Николаев blacklit...@gmail.com

 What log say?
 Do you really include jquery library ? How do you know this ?

 On 22 ноя, 22:14, Sudeep S sudee...@gmail.com wrote:
  Hi,
 
  I am trying to use jquery.corner.js to round my panel in gwt using the
 below
  code
 
  *
 
  public* *final* *native* *void* roundCorner()/*-{
 
  $wnd.$(#roundedPanel).corner(5px);
 
  }-*/;
 
  where roundedPanel is the id of the div panel. Though it is invoking
 the
  jquery.corner.js it is not rounding it. Is it not possible to round
 corners
  using this.
 
  Thanks
  Sudeep

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MenuBar in a Flextable cell

2009-11-22 Thread Sudeep S

Hi,

I have a req wherein I have to add a menubar widget to every row in a
flextable. When the menubar is clicked it opens but it also expands the
cell in which it is placed distorting the layout.

Any ideas on this one.

Thanks
Sudeep

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gwt + jquery rounded corner

2009-11-22 Thread Sudeep S

Hi,

I am trying to use jquery.corner.js to round my panel in gwt using the below
code

*

public* *final* *native* *void* roundCorner()/*-{

$wnd.$(#roundedPanel).corner(5px);

}-*/;
where roundedPanel is the id of the div panel. Though it is invoking the
jquery.corner.js it is not rounding it. Is it not possible to round corners
using this.


Thanks
Sudeep

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UI Layout and Alignments

2009-11-12 Thread Sudeep S

Hi

I am new to gwt. Can someone tell me wht are the best practices in UI Design
and alignments.

I am using a Flex Table and FlexCell formatter for almost everything. Are
there better ways to ahieve it.

Thanks
Sudeep

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Rounded Borders in GWT

2009-11-01 Thread Sudeep S

HI,

I tried to achieve Rounded Panel for a header by placing a caption Panel
inside another. But it was introducing a cell padding by default.
Can anyone suggest alternatives.

Thanks
Sudeep

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Re: Rounded Borders in GWT

2009-11-01 Thread Sudeep S

Thank you Chrisom,

I will give it a try.

On Sun, Nov 1, 2009 at 6:36 PM, chrisom sommerm...@googlemail.com wrote:


 You could give this one a try. It's easy to use.
 http://advanced-gwt.sourceforge.net/borders.html

 On Nov 1, 8:17 am, Sudeep S sudee...@gmail.com wrote:
  HI,
 
  I tried to achieve Rounded Panel for a header by placing a caption Panel
  inside another. But it was introducing a cell padding by default.
  Can anyone suggest alternatives.
 
  Thanks
  Sudeep

 


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Packaging Applications in GWT

2009-10-30 Thread Sudeep S

Hello, 

 

Can someone suggest the techniques/best practices involved in packaging the
GWT applications where the client code and server code reside separately.

 

Thanks

Sudeep 


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GWT + ContentServer

2009-10-30 Thread Sudeep S

Hi

Is it possible to deploy the GWT client code on Content Server and the
server code on Application Server. My current application heavily uses
Content Server for the front end, so I need to find a way to get GWT working
with Content Server.

Thanks
Sudeep

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Re: GWT + ContentServer

2009-10-30 Thread Sudeep S

We are using Fatwire

On Sat, Oct 31, 2009 at 12:17 AM, maratkalibek maratkali...@gmail.comwrote:


 Hi,
 can you name your Content Server?

 GWT is only about client side and can interoperate with servers by
 JSON or GWT built-in RPC. So your server must provide one of this
 approaches.

 On 31 окт, 00:24, Sudeep S sudee...@gmail.com wrote:
  Hi
 
  Is it possible to deploy the GWT client code on Content Server and the
  server code on Application Server. My current application heavily uses
  Content Server for the front end, so I need to find a way to get GWT
 working
  with Content Server.
 
  Thanks
  Sudeep
  


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Re: Session-Confusion

2009-10-26 Thread Sudeep S

Hi Philip,

You need not create a new session for every tab.
Rather what you can do is, ensure that every request from a new tab passes a
Id to the gwt module and use your session like

...request.setAttribute( 'SESSION_DATA_'+Id, sessionData )

since your client is passing the id, it can use the same id at a later stage
to retrieve the data (i used a random number). But i doubt if this can be
used in distributed server envrionment where sessions are not replicated
across all the servers.

Thanks
Sudeep
On Mon, Oct 26, 2009 at 9:25 PM, Thomas Broyer t.bro...@gmail.com wrote:




 On 26 oct, 12:38, philipp.bouil...@gmail.com
 philipp.bouil...@gmail.com wrote:
  ?
 
  Thanks, Paul, but I fear I don't (quite) understand.
  Are you saying that I have to start FF with command line options in
  order to be able to create different session IDs for different tabs?
  Even if that should be so, I can hardly communicate this information
  to all our clients and ask them to start their FF with those options
  (let alone those clients that are using different browsers, like IE 8
  for example).

 Are your clients *expected* to open the app twice side-by-side with
 different credentials? Most webapps do not allow it (including Google
 apps and apps hosted on AppEngine, as well as Yahoo! and Microsoft
 apps, to cite a few).

  Isn't there a way of getting different session IDs for different tabs?

 Sure: do not use cookies to maintain sessions (servlet containers
 usually have a way of disabling cookie-based sessions).

 But you'd better not use sessions at all if you can: if your GWT app
 is a single-page app, then the page itself can maintain the session
 without the need for cookies: just pass the credentials (generally an
 authentication ticket that the server generated in response to a
 request to a login servlet) with all your calls (e.g. use
 RequestBuilder.addHeader, and if you use RPC, use the
 RpcRequestBuilder to do the same, if you use a GWT 2.0 milestone or
 similar).
 See Ray Ryan's talk at Google I/O last spring:

 http://code.google.com/events/io/2009/sessions/GoogleWebToolkitBestPractices.html
 (look for statelessness)
 You can also google for REST, RESTful or RESTful web services.

 


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Re: HashMap argument type mismatch

2009-10-26 Thread Sudeep S

2 quick questions.

1. are u using generics.
2. have all the objects of your hashmap implemented isSeriliazable or
Serilizable interface.

On Mon, Oct 26, 2009 at 10:51 AM, Palani pas...@gmail.com wrote:


 Hello,
I am in the process of converting from gwt 1.5 to 1.7.1 and
 getting the following error
 when I am trying to get a HashMap from the server.

 Any idea why this might happen?
 I am using JDK 1.6.0_13.

 The request looks like

 5|0|4|http://localhost:54002/Webclient/webclient/|
 E2C9084EB9E82F1F373FDB40DF5D423D|http://localhost:54002/Webclient/webclient/%7CE2C9084EB9E82F1F373FDB40DF5D423D%7C
 com.client.web.client.WebClientService|getPropertiesMapNew|1|2|3|4|0|


 method Return Type shows as class java.util.HashMap

 typeSignature is java.util.HashMap/962170901

 customSerializar is class
 com.google.gwt.user.client.rpc.core.java.util.HashMap_CustomFieldSerializer

 args is [[1,[java.util.HashMap/962170901],0,5], {XXX=}] looks
 like in Method.invoke


 public static void

 com.google.gwt.user.client.rpc.core.java.util.HashMap_CustomFieldSerializer.serialize

 (com.google.gwt.user.client.rpc.SerializationStreamWriter,java.util.HashMap)
 throws com.google.gwt.user.client.rpc.SerializationException






 =
 Exception while dispatching incoming RPC call
 com.google.gwt.user.client.rpc.SerializationException:
 java.lang.IllegalArgumentException: argument type mismatch
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeWithCustomSerializer
 (ServerSerializationStreamWriter.java:690)
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl
 (ServerSerializationStreamWriter.java:659)
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize
 (ServerSerializationStreamWriter.java:593)
at

 com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject
 (AbstractSerializationStreamWriter.java:129)
at
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter
 $ValueWriter$8.write(ServerSerializationStreamWriter.java:146)
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue
 (ServerSerializationStreamWriter.java:530)
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass
 (ServerSerializationStreamWriter.java:636)
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl
 (ServerSerializationStreamWriter.java:666)
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize
 (ServerSerializationStreamWriter.java:593)
at

 com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject
 (AbstractSerializationStreamWriter.java:129)
at
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter
 $ValueWriter$8.write(ServerSerializationStreamWriter.java:146)
at

 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue
 (ServerSerializationStreamWriter.java:530)
at com.google.gwt.user.server.rpc.RPC.encodeResponse(RPC.java:573)
at com.google.gwt.user.server.rpc.RPC.encodeResponseForSuccess
 (RPC.java:441)
at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse
 (RPC.java:529)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall
 (RemoteServiceServlet.java:166)
at com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost
 (RemoteServiceServlet.java:86)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at
 org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:
 487)
at org.mortbay.jetty.servlet.ServletHandler.handle
 (ServletHandler.java:362)
at org.mortbay.jetty.security.SecurityHandler.handle
 (SecurityHandler.java:216)
at org.mortbay.jetty.servlet.SessionHandler.handle
 (SessionHandler.java:181)
at org.mortbay.jetty.handler.ContextHandler.handle
 (ContextHandler.java:729)
at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:
 405)
at org.mortbay.jetty.handler.ContextHandlerCollection.handle
 (ContextHandlerCollection.java:206)
at org.mortbay.jetty.handler.HandlerWrapper.handle
 (HandlerWrapper.java:152)
at org.mortbay.jetty.Server.handle(Server.java:324)
at
 org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:
 505)
at org.mortbay.jetty.HttpConnection$RequestHandler.content
 (HttpConnection.java:843)
at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
at org.mortbay.io.nio.SelectChannelEndPoint.run

Re: GWT.log listener in hosted mode

2009-10-26 Thread Sudeep S

Hi Alan,

You can use gwt_log or i_log for remote logging gwt logger.

Thanks
Sudeep

On Sun, Oct 25, 2009 at 10:59 PM, al.hicks al.hi...@gmail.com wrote:


 Hello,

 I am looking for some help. I want to be able to listen to the GWT.log
 messages that are output in the hosted mode console and use them in
 another application. Currently I am only interested in doing this
 locally. My thoughts are that the simplest way to achieve this is to
 some how write them to a file? Does anyone know how to do this?
 Ideally there would be a way that I can do this would modifying the
 GWT code base.

 Any help/ advice would be great.

 Thanks,
 Alan.


 


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Re: HashMap argument type mismatch

2009-10-26 Thread Sudeep S

in your service impl you have not used a generic version of  hashmap.
try the below code

public HashMapString, String getPropertiesMap()
   throws InvalidSessionException {
change from  *HashMap m = new HashMap(); to   HashMapString,String
m = new HashMapString,String();
*   m.put(XXX, );
   return m;
   }

Thanks
Sudeep


On Mon, Oct 26, 2009 at 11:38 PM, Palani pas...@gmail.com wrote:



 Thanks for the reply.
 (1) Yes, I am using generics.

 (2) I am putting only String in the map

 Below is how the code looks like



// method that gets the data from the server
public void getPropertiesMap {
AsyncCallbackHashMapString, String callback =
 new
 AsyncCallbackHashMapString, String() {
public void onSuccess(HashMapString,
 String result) {

}
public void onFailure(Throwable caught) {
System.out.println(caught);

}

};
service.getPropertiesMap(callback);
}


// Method declartion in the service ( I tried without the
 @gwt.typeArgs declaration also).

/**
* @gwt.typeArgs HashMapString, String
 */
HashMapString, String getPropertiesMap() throws
 InvalidSessionException;


//Method declaration in ServiceAsync
void getPropertiesMap(AsyncCallbackHashMapString, String
 callback);




// Service Impl method

public HashMapString, String getPropertiesMap()
throws InvalidSessionException {
*HashMap m = new HashMap();
 *   m.put(XXX, );
return m;
}




 On Oct 26, 12:49 pm, Sudeep S sudee...@gmail.com wrote:
  2 quick questions.
 
  1. are u using generics.
  2. have all the objects of your hashmap implemented isSeriliazable or
  Serilizable interface.
 
  On Mon, Oct 26, 2009 at 10:51 AM, Palani pas...@gmail.com wrote:
 
   Hello,
  I am in the process of converting from gwt 1.5 to 1.7.1 and
   getting the following error
   when I am trying to get a HashMap from the server.
 
   Any idea why this might happen?
   I am using JDK 1.6.0_13.
 
   The request looks like
 
   5|0|4|http://localhost:54002/Webclient/webclient/|http://localhost:54002/Webclient/webclient/%7C
   E2C9084EB9E82F1F373FDB40DF5D423D|
 http://localhost:54002/Webclient/webclient/%7CE2C9084EB9E82F1F373FDB4...
com.client.web.client.WebClientService|getPropertiesMapNew|1|2|3|4|0|
 
   method Return Type shows as class java.util.HashMap
 
   typeSignature is java.util.HashMap/962170901
 
   customSerializar is class
  
 com.google.gwt.user.client.rpc.core.java.util.HashMap_CustomFieldSerializer
 
   args is [[1,[java.util.HashMap/962170901],0,5], {XXX=}] looks
   like in Method.invoke
 
   public static void
 
  
 com.google.gwt.user.client.rpc.core.java.util.HashMap_CustomFieldSerializer.serialize
 
  
 (com.google.gwt.user.client.rpc.SerializationStreamWriter,java.util.HashMap)
   throws com.google.gwt.user.client.rpc.SerializationException
 
   =
   Exception while dispatching incoming RPC call
   com.google.gwt.user.client.rpc.SerializationException:
   java.lang.IllegalArgumentException: argument type mismatch
  at
 
  
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeWithCustomSerializer
   (ServerSerializationStreamWriter.java:690)
  at
 
  
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl
   (ServerSerializationStreamWriter.java:659)
  at
 
  
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize
   (ServerSerializationStreamWriter.java:593)
  at
 
  
 com.google.gwt.user.client.rpc.impl.AbstractSerializationStreamWriter.writeObject
   (AbstractSerializationStreamWriter.java:129)
  at
   com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter
   $ValueWriter$8.write(ServerSerializationStreamWriter.java:146)
  at
 
  
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeValue
   (ServerSerializationStreamWriter.java:530)
  at
 
  
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeClass
   (ServerSerializationStreamWriter.java:636)
  at
 
  
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serializeImpl
   (ServerSerializationStreamWriter.java:666)
  at
 
  
 com.google.gwt.user.server.rpc.impl.ServerSerializationStreamWriter.serialize
   (ServerSerializationStreamWriter.java:593

Re: how to send variables in form panel

2009-10-22 Thread Sudeep S

multipart requests have to be sent via a FORM panel

On Thu, Oct 22, 2009 at 6:53 PM, Lazo Apostolovski qbox2...@gmail.comwrote:


 Its probably a multipart message :S

 Try googling for how to accept multipart message on the server side

 here is some example but i don't know if you find usefull.

 public HashMapString, InputStream parseMultipartMessage(
  HttpServletRequest request) {

mapWithStreams = new HashMapString, InputStream();

boolean isMultipart = ServletFileUpload.isMultipartContent(request);
try {
  if (isMultipart) {
FileItemFactory factory = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(factory);

ListFileItem items = upload.parseRequest(request);

for (FileItem item : items) {
  mapWithStreams.put(item.getFieldName(), item.getInputStream());
}
  } else {
mapWithStreams.put(DEFAULT_KEY, request.getInputStream());
  }
} catch (FileUploadException e) {
  e.printStackTrace();
} catch (IOException e) {
  e.printStackTrace();
}
return mapWithStreams;

 In normal message (not multipart) data from the text fields come like
 the body of the message. If you try to transfer file in normal message
 then Stream is send like the body of the message. So you can transver
 only Parameters or only stream. If you want to transfer parameters and
 stream in same message you need to use multipart message. In multipart
 message InputStream come on server like a body of the message. If that
 input stream contain multipart message you need to parse that message.
 So in one part you will have values from input fields and in other part
 you will have Stream for uploaded file. Read about multipart messages on
 the wiki site. Code abowe will parse all input streams from multipart
 message and place them to the HasMap. The Key in HashMap is the File
 name. You can access to streams later when you need them. To the
 parameters you can access on the same way like you deed before:

request.getParameter(parameterName);

 Good luck.

 YoeZ wrote:
  Hey abhiram,
 
  I still have a problem in server side,, can you tell me how to catch
  variable from client.
 
  Let say I have a textbox in client.
 
  Textbox txtComment = new Textbox;
  txtComment.setName(txtComment);
  txtComment .setText(hello);
 
  in server side:
  I've tried:
  String varXXX = (String) request.getParameter(txtComment);
 
  but that's not working. :(
 
  and I've also tried like this :
 
  try {
  List items = upload.parseRequest(request);
  Iterator it = items.iterator();
  while (it.hasNext()) {
  FileItem item = (FileItem) it.next();
  if (item.isFormField()) {
String name = item.getFieldName();
if (name.equals(txtComment)) {
ret = item.getString();
}
  return ret;
  }
  }
  } catch (FileUploadException e) {
  return null;
  }
 
  but still null return.
 
  can you tell me how to catch it.
 
  regards
 
 
 
 
  On Oct 21, 12:32 am, abhiram wuntakal abhir...@gmail.com wrote:
 
  Hey Yoez,
 
Not sure if it helps. But i have a workaround solution for this. Make
 it a
  two-step process. First use a RemoteServiceServlet to pass across your
  variables to the server side and then save these values into some
 variables
  on the server side.
 
   Then you can use a HTTPServlet to pass across your file contents to the
  server side. Now you have the file as well as the variables.
 
   HTH,
  Cheers,
  Abhiram
 
 
 
  On Mon, Oct 19, 2009 at 6:12 PM, YoeZ juz...@gmail.com wrote:
 
 
  thanks ian,, but i'm using GWT and tried to uploadfile which is must
  using FormPanel.
  I have successfully upload my file to server with UploadFile widget,
  but I have another textboxes too. and dunno how to catch inside
  FormPanel.
 
  On Oct 19, 7:15 pm, Ian Bambury ianbamb...@gmail.com wrote:
 
  You'll stand more chance of an answer if you ask that question in a
 Java
  forum. This is a GWT group.
  Ian
 
  http://examples.roughian.com
 
  2009/10/19 YoeZ juz...@gmail.com
 
  hello... please help
 
  On Oct 18, 12:31 am, YoeZ juz...@gmail.com wrote:
 
  Hi.
 
  I have 1 form panel with some textboxes and file upload.
  the question is, how to get variables from client/form panel in
  servlet?
  i created DTO/Pojo object to hold variables in client, but i donk
 
  know
 
  how to catch in servlet..
 
  please help
 
  thanks
 
  
 
 


 


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Re: debug gwt compiled javascript

2009-10-21 Thread Sudeep S

Thank you Ian

Thank you Adligo, reg logging library approach, can we turn off the loggers
without having to deploy the code again.

-Sudeep

On Wed, Oct 21, 2009 at 10:58 PM, Adligo sc...@adligo.com wrote:


 Hi,

  I would recommend the following;
 1) Add a uncaught exception handler and if that doesn't solve the
 issue
 2) pick a log library gwt-log or i_log (my adligo packages)
direct the log output back to the server, so you can determine
 where the code is blowing up, add a try catch to catch your
 exception.  As a last resort work in halves to determine the location
 of the blowup.

 Cheers,
 Scott

 On Oct 20, 1:29 pm, Ian Bambury ianbamb...@gmail.com wrote:
  Hi Sudeep,
  This, in my experience, is usually due to IE being politically correct
 and
  FF being lenient (as opposed to FF being correct and IE being complete
 ,
  which is what people would tell you if things were the other way around)
 
  Assuming you are on Linux and using something less that GWT v2.0, then
 the
  easiest way to sort it out is to run the project on a Windows machine
 (since
  hosted mode uses IE and you'll get an error with a line number)
 
  If that isn't an option, then compile with -style PRETTY or DETAILED,
 which
  will at least tell you the method that is failing - have a look at it,
 and
  post again if you can't see the problem.
 
  Ian
 
  http://examples.roughian.com
 
  2009/10/20 Sudeep S sudee...@gmail.com
  
   hello,
 
   I hav my gwt app, compiled and running fine on FF,
 
   but on IE it says that *this.h.a* is null or not an object.
 
   Any ideas how to debug/backtrack the java code for such an error.
 
   Thanks
   Sudeep
 


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Re: Creating new methods for Async class

2009-10-20 Thread Sudeep S

I am doing something like

*

public* *interface* UtilService *extends* RemoteService {

MapString, MapString, RateCard[] fetchdata (Customer objCustomer);
}

*

public* *interface* UtilServiceAsync {
*

void* fetchData(Customer objCustomer ,AsyncCallbackMapString, MapString,
Card[] callback);

}
and this works without any hassles.

I have even tried ArrayList ..works without a problem..

but make sure all the attributes of list have implemented Serializable or
isSerilizable interface.
Thanks
Sudeep
On Tue, Oct 20, 2009 at 9:55 AM, Ralf B ralf.bie...@gmail.com wrote:


 Your return value is an ArrayList, not a String - so much about
 compatibility of types. However I am not sure if you can actually
 return an ArrayList (due to the requirement to have implemented the
 Serializable interface). Working with String[] directly will certainly
 work but would  require you to turn your return value into a static
 String array.

 Ralf


 On Mon, Oct 19, 2009 at 4:54 PM, michael.d.clay...@hotmail.com
 michael.d.clay...@hotmail.com wrote:
 
  I have an implementation method that I want to return an
  arraylistString from the DB.
 
  Here is the method:
 
  public ArrayListString greetClients() {
 String result = ;
 Connection conn = null;
 Statement st = null;
 
 String sql = select distinct dealernumber from
 financialaccount;
 ArrayListString clients = new ArrayListString();
 try{
 Class.forName(com.mysql.jdbc.Driver);
 conn =
 DriverManager.getConnection(jdbc:mysql://localhost:3306/
  DB, user, password);
 st = conn.createStatement();
 ResultSet rs = st.executeQuery(sql);
 while(rs.next()){
 if(rs.getString(0)!=null){
 clients.add(rs.getString(0));
 }
 
 }
 
 //System.out.println(result);
 st.close();
 conn.close();
 }catch(Exception e){
 e.printStackTrace();
 }
 
 
 return clients;
 }
 
  When I try to create the methods in the other classes; in the Service
  and ServiceAsync class I get this error:
 
  Return type is not compatible with the AsyncCallback parameter from
  GreetingServiceAsync.getClients
  Here is are my classes:
 
  GreetingService.java
  package com.appcrown.dashboard.client;
 
  import java.util.ArrayList;
  import java.util.List;
 
  import com.google.gwt.user.client.rpc.RemoteService;
  import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
 
  /**
   * The client side stub for the RPC service.
   */
  @RemoteServiceRelativePath(greet)
  public interface GreetingService extends RemoteService {
 String greetServer(String name);
 ArrayListString getClients(); //gives error
  }
 
 
 
  GreetingServiceAsync.java
  package com.appcrown.dashboard.client;
 
  import java.util.ArrayList;
 
  import com.google.gwt.user.client.rpc.AsyncCallback;
 
  /**
   * The async counterpart of codeGreetingService/code.
   */
  public interface GreetingServiceAsync {
 void greetServer(String input, AsyncCallbackString callback);
 void getClients(AsyncCallbackString callback); //gives error
  }
 
 
 
 
  
 

 


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Re: Creating new methods for Async class

2009-10-20 Thread Sudeep S

try doing

ListString clients = new ArrayListString();

instead of

ArrayListString clients = new ArrayListString();

On Tue, Oct 20, 2009 at 11:31 PM, Sudeep S sudee...@gmail.com wrote:

 I am doing something like

 *

 public
 **interface* UtilService *extends* RemoteService {

 MapString, MapString, RateCard[] fetchdata (Customer objCustomer);
 }
 *

 public
 **interface* UtilServiceAsync {*

 void
 *fetchData(Customer objCustomer ,AsyncCallbackMapString, MapString,
 Card[] callback);

 }
 and this works without any hassles.

 I have even tried ArrayList ..works without a problem..

 but make sure all the attributes of list have implemented Serializable or
 isSerilizable interface.
 Thanks
 Sudeep
   On Tue, Oct 20, 2009 at 9:55 AM, Ralf B ralf.bie...@gmail.com wrote:


 Your return value is an ArrayList, not a String - so much about
 compatibility of types. However I am not sure if you can actually
 return an ArrayList (due to the requirement to have implemented the
 Serializable interface). Working with String[] directly will certainly
 work but would  require you to turn your return value into a static
 String array.

 Ralf


 On Mon, Oct 19, 2009 at 4:54 PM, michael.d.clay...@hotmail.com
 michael.d.clay...@hotmail.com wrote:
 
  I have an implementation method that I want to return an
  arraylistString from the DB.
 
  Here is the method:
 
  public ArrayListString greetClients() {
 String result = ;
 Connection conn = null;
 Statement st = null;
 
 String sql = select distinct dealernumber from
 financialaccount;
 ArrayListString clients = new ArrayListString();
 try{
 Class.forName(com.mysql.jdbc.Driver);
 conn =
 DriverManager.getConnection(jdbc:mysql://localhost:3306/
  DB, user, password);
 st = conn.createStatement();
 ResultSet rs = st.executeQuery(sql);
 while(rs.next()){
 if(rs.getString(0)!=null){
 clients.add(rs.getString(0));
 }
 
 }
 
 //System.out.println(result);
 st.close();
 conn.close();
 }catch(Exception e){
 e.printStackTrace();
 }
 
 
 return clients;
 }
 
  When I try to create the methods in the other classes; in the Service
  and ServiceAsync class I get this error:
 
  Return type is not compatible with the AsyncCallback parameter from
  GreetingServiceAsync.getClients
  Here is are my classes:
 
  GreetingService.java
  package com.appcrown.dashboard.client;
 
  import java.util.ArrayList;
  import java.util.List;
 
  import com.google.gwt.user.client.rpc.RemoteService;
  import com.google.gwt.user.client.rpc.RemoteServiceRelativePath;
 
  /**
   * The client side stub for the RPC service.
   */
  @RemoteServiceRelativePath(greet)
  public interface GreetingService extends RemoteService {
 String greetServer(String name);
 ArrayListString getClients(); //gives error
  }
 
 
 
  GreetingServiceAsync.java
  package com.appcrown.dashboard.client;
 
  import java.util.ArrayList;
 
  import com.google.gwt.user.client.rpc.AsyncCallback;
 
  /**
   * The async counterpart of codeGreetingService/code.
   */
  public interface GreetingServiceAsync {
 void greetServer(String input, AsyncCallbackString callback);
 void getClients(AsyncCallbackString callback); //gives error
  }
 
 
 
 
  
 

 



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debug gwt compiled javascript

2009-10-20 Thread Sudeep S

hello,

I hav my gwt app, compiled and running fine on FF,

but on IE it says that *this.h.a* is null or not an object.

Any ideas how to debug/backtrack the java code for such an error.

Thanks
Sudeep

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JSNI Help

2009-10-17 Thread Sudeep S

Hi,

I am trying to make a jsni method call and using the return value, I want to
invoke another method in the calling html.

Using the getData() method in the html, I am calling getId() whose
implementation is in the gwt module. The getId returns an Id which is used
to make another function call from the parent html.

*JS in html*

var id;

function getData(){
 getId();
 if(typeof(id)!== 'undefined') {
fetchData(id);
 }
}

function fetchData(id){
 // Implementation here
}

*JSNI code*

public native void publishGetId() /*-{
  var jsId = th...@com.foo.test::instanceId;
  $wnd.getId = function() {
   $wnd.id = jsId;
  };
 }-*/;

the instanceId is an int and non static and on the pageload is not
initialised, but is updated at a later stage.

The method is publishGetId is called on the onModuleLoad.

*The strange behavior that i am facing is that even though the instanceId is
getting updated the jsId is not reflecting the same.It shows undefined all
the time.*

The getData() is called from the parent html after gwt module is loaded and
after the instanceId is updated.

Any help would be greatly appreciated.

Thanks
Sudeep

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Re: JSNI Help

2009-10-17 Thread Sudeep S

This the code that I am using currently.



On Sat, Oct 17, 2009 at 5:12 PM, Sudeep S sudee...@gmail.com wrote:

 Hi,

 I am trying to make a jsni method call and using the return value, I want
 to invoke another method in the calling html.

 Using the getData() method in the html, I am calling getId() whose
 implementation is in the gwt module. The getId returns an Id which is used
 to make another function call from the parent html.

 *JS in html*

 var id;

 function getData(){
  getId();
  if(typeof(id)!== 'undefined') {
 fetchData(id);
  }
 }

 function fetchData(id){
  // Implementation here
 }

 *JSNI code*

 public native void publishGetId() /*-{
 $wnd.getId = function() {
 *var jsId = 
 **th...@com.foo.test::instanceId*th...@com.foo.test::instanceId
 *;  *

$wnd.id = jsId;
   };
  }-*/;

 the instanceId is an int and non static and on the pageload is not
 initialised, but is updated at a later stage.

 The method is publishGetId is called on the onModuleLoad.

 *The strange behavior that i am facing is that even though the instanceId
 is getting updated the jsId is not reflecting the same.It shows
 undefined all the time.*

 The getData() is called from the parent html after gwt module is loaded and
 after the instanceId is updated.

 Any help would be greatly appreciated.

 Thanks
 Sudeep


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How to read POST parameters in GWT

2009-10-09 Thread Sudeep S

Hi,
I am new to gwt.

I am invoking a gwt module from an external html and passing parameters in
the POST.

How can they be retrieved in the gwt app.

Thanks
Sudeep

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Integrating GWT with JSP

2009-10-08 Thread Sudeep S


Hi,

I have a requirement wherein my application loads an external gwt
application as a widget in its iframe.

The application's UI is developed using JSP.

Can someone suggest me the best practices followed in communicating
with external GWT applications (passing

data back and forth).


Thanks
Sudeep
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Re: Integrating GWT with JSP

2009-10-08 Thread Sudeep S

 Thanks a lot Venkat !!! for your prompt reply..

 Before I can start experimenting on JSNI,
 just wanted to know does JSNI work when both JSP and GWT
 (gwt module hosted on a  different domain is loaded as an iframe in jsp)
 come from different domains.


Thanks
Sudeep


On Fri, Oct 9, 2009 at 10:16 AM, venki pola.ve...@gmail.com wrote:


 You have to use JSNI(Java Script Native Interface) which is provided
 by GWT. Using this you can able to access java script code of your jsp
 page. If you wish to send any data from your jsp to GWT module then
 export that variable in java script of your jsp page. In your module
 write one JSNI method and write your stuff to take the data from your
 java script code of jsp page.

 On Oct 9, 12:19 am, Sudeep S sudee...@gmail.com wrote:
  Hi,
 
  I have a requirement wherein my application loads an external gwt
  application as a widget in its iframe.
 
  The application's UI is developed using JSP.
 
  Can someone suggest me the best practices followed in communicating
  with external GWT applications (passing
 
  data back and forth).
 
  Thanks
  Sudeep
 


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Passing data from GWT to JSP across domains

2009-10-06 Thread Sudeep S


Hi,

I am new to gwt.

I had to prototype an application that loads a gwt application from a
different domain as an iframe in a parent jsp.

The gwt module is a utility which is used across mulitple applications
(its some sort of complex calculator).

It only has one button 'calculate' to trigger an event to perform
calculation and display the results in the iframe.

The challenge that i am confronted with is, I have a save and sumbit
options in my parent jsp and not on the gwt module. On click on the
save or submit options I will have to process the gwt data in the host
application.

The approach I had taken was,once the gwt module completes calculation
it stores all the data in a session.

Then on click of the submit or save options, an asynchronous call is
made to a servlet in the gwt module that stores the gwt session data
and using jquery the cross domain data exchange is achieved.

The problem in short is The processing happens in one system and the
event is trigerred from a different system

Can this be done in a better way without using session, to pass the
data between the gwt and the parent jsp.

Thanks in advance



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Re: rpc serialization problem

2009-10-06 Thread Sudeep S

 Hey Benjamin,

 Since u are using Generics ensure that all the classes Service, ServiceAync
and ServiceImpl
 use the same signature i.e ListSubCatagory  .
   btw which version of gwt are u using.

 Also, you can the temp dir where u can find a rpc.log file with the list of
all objects that are serialized.



On Wed, Oct 7, 2009 at 2:20 AM, Benjamin bsaut...@gmail.com wrote:


 I'm struggeling with this now - did you guys solve it?  I have a
 simple client class that will be a parent in a simple parent-child
 relationship.  If i add an ArrayList property to the parent class (i
 don't even have to decorate it as persistant) i get

 EVERE: [1254861190636000] javax.servlet.ServletContext log: Exception
 while dispatching incoming RPC call
 com.google.gwt.user.client.rpc.SerializationException: Type
 'org.datanucleus.sco.backed.List' was not included in the set of types
 which can be serialized by this SerializationPolicy or its Class
 object could not be loaded. For security purposes, this type will not
 be serialized.

 i've tried java.util.list and java.util.arraylist with same result -
 defiitly not a 'org.datanucleus.sco.backed.List'

 what's odd is that the RPC call runs in a way and the object is
 persisted but without the list field.

 Anyway - this seems like something that can't be passed in an RPC call
 but i don't see why

 @PersistenceCapable(identityType = IdentityType.APPLICATION)
 public class Catagory extends BaseTreeModel implements Serializable {

 public  Catagory() {}

private static final long serialVersionUID = 1L;
@PrimaryKey
@Persistent(valueStrategy = IdGeneratorStrategy.IDENTITY)
@Extension(vendorName=datanucleus, key=gae.encoded-pk,
 value=true)
private String key;

 @Persistent(mappedBy = catagory)
   private  ListSubCatagory subcatagories;


 }



 On Sep 22, 5:43 am, Angel gonzalezm.an...@gmail.com wrote:
  i have the same problem
 
  On 5 ago, 04:52, mike m...@introspect.com wrote:
 
 
 
   I have a simple one-to-many betwen two entities.  The parent entity
   uses List to contain the child entities.  I am able to persist these
   entities in the datastore without problems.
 
   However, when reading a root entity at the server, I get:
 
   rpc.SerializationException: Type 'org.datanucleus.sco.backed.List' was
   not included in the set of types  which can be serialized...
 
   The entities are successfully read from the datastore, but something
   in Datanucleus doesn't build the List correctly.
 
   Has anyone found a workaround for this serialization problem.
 
   Thanks
 
   GWT 1.7 GAE 1.2.2- Hide quoted text -
 
  - Show quoted text -
 


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