Good knowledge source for GWTEvent Handling?
Hi, actually I trying to understand in detail the GWTEvent Handling, does anyone has good links to articles or something else helpful for that? I Thanks for your responses -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Easily fixable: Issue 2892 Option Element warnings
Thanks for the reply! Somehow didn't know I could send in patches as I missed the functionality in the GWT google code issue tracker. :) The patch is now on Rietveld and I also signed a CLA. Now I hope this patch gets applied soon :) http://gwt-code-reviews.appspot.com/632803/show Jurriaan On Jul 5, 11:39 pm, Thomas Broyer t.bro...@gmail.com wrote: On 5 juil, 13:06, Jurriaan Mous arque...@gmail.com wrote: I would like to bring an old Issue 2892 to your attention. Some option fields used as date selectors in our application keep outputting many annoying warnings. Causing a 15 to 20 second wait before we could continue on some views. Particularly year selection has a lot of years because they are for selecting birth days of older people. We could set the logging level higher but then we don't see the normal logs we included in testing. The fix is very simple. Somebody could remove the returns from the methods that should return a void to remove the warning. This is a very small task but not yet done in the years in the existence of the issue report. It would make us very happy to properly test those views with option elements in our app. :) The issue with a proposed fix:http://code.google.com/p/google-web-toolkit/issues/detail?id=2892 (I am arquelis in the issue and posted a possible fix months ago) Could somebody in the list find a way to have this issue fixed? You will be in our eternal gratitude! :) Seehttp://code.google.com/webtoolkit/makinggwtbetter.html#submittingpatches Sending patches makes things faster than explaining a fix. If you can add a unittest (in this case, it shouldn't be necessary), it's even better. But more than that, signing the Contributor License Agreement is probably a must fr contributions to be accepted. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
Dear Sir, We are developing an application using GWT, this application is very heavy of widgets, we are using a datatable that is developed in JQuery. We are suffering from a big memory leak. I did not find yet a way to resolve this problem can anyone help me please. The problem we have is that the memory on the hosted machine keeps increasing all the time. Can you please propose anyway to decrease the consumption of memory on my application? Please it is an urgent matter. nd help! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Web Runtime Curriculum Advanced v1.0 Beta
Hey Guys Was going through this great Curriculum from Forum Nokia website, thought to share it with you. This set contains the following lectures: WRT widget structure, Ajax, UI Development, Platform Services, Performance, and Homescreen Widgets. Topics covered are: • Symbian^3 • Tools • IDE • Aptana Studio • Training • UI • UI Design • Web Technology • Web Runtime (WRT) • Widget for S60 Download it here http://bit.ly/dw0rMJ -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How to put a CellTable into a fixed relative sized div?
Still no solution.. Do you think this might be a bug? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Image Format Conversion + alternative to FileOutputStream
Here is a part from a servlet I use to scale pictures:
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws ServletException,
IOException
{
...
String angleStr = request.getParameter(angle);
...
// scale the image
ParameterBlock parameterBlock = new ParameterBlock();
parameterBlock.addSource(convertedImage);
parameterBlock.add(scale);
parameterBlock.add(scale);
parameterBlock.add(0.0f);
parameterBlock.add(0.0f);
parameterBlock.add(new InterpolationNearest());
PlanarImage scaledImage = JAI.create(scale, parameterBlock);
// create a jpeg stream
ByteArrayOutputStream byteArrayOutputStream = new
ByteArrayOutputStream();
JAI.create(encode, scaledImage, byteArrayOutputStream, jpeg);
ServletOutputStream servletOutputStream = response
.getOutputStream();
servletOutputStream.write(byteArrayOutputStream.toByteArray());
On the client side use the GWT image method 'setUrl' to pass the
parameters to te servlet (angle in the example).
Maybe I've misunderstood, but this istn't really a GWT problem.
I hope this helps
Holger
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gson module problem
Welcome , i add gson lib version 1.4 and i face a problem when trying to inherit it in the gwt.xml file how i can fix this problem ??? thanks , ahmed shoeib -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: onSuccess() return value other than void?
Thanks for the replies thus far. That all makes sense. I did have strong doubts about the likelihood of what I wanted but as I am not an expert in the field I thought it was better to make sure. Actually, my problems would be solved quite quickly if I got around my initial problem that led to this posting. Basically, there is a class in my client side, under myApp.client.models.SomeModel that I need to pass to the server. The problem is that the server cannot see this class as I get an error when I try to compile it. My question is: How do I check if the class is on my SERVER classpath? Thanks :) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gson module problem
You cannot use gson in GWT. See http://groups.google.com/group/google-gson/browse_thread/thread/6c3d6476113282e/d09bb094eca25a97 for more infos. If you need a JSON parser for GWT take a look at Piriti (http:// code.google.com/p/piriti/). - Harald On 6 Jul., 12:30, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote: Welcome , i add gson lib version 1.4 and i face a problem when trying to inherit it in the gwt.xml file how i can fix this problem ??? thanks , ahmed shoeib -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
First of all: DON'T PANIC - the possibility of a good answer does not correlate with the number of exclamation marks used in the subject or text. Now concerning your problem: your problem description is very vague - essentially you are saying: my application does not work - tell me how to fix it. If the memory consumption increases on the machine that is hosting your application, the problem has nothing to do with GWT at all, since all the javascript code is generated at compile time and executed on the client side (in the browser). Your description indicates that your server side code is leaking memory. The best way to fix this problem is to thoroughly analyse your application's runtime behaviour by profiling the application with tools like JProfiler, Yourkit or the NetBeans Profiler. On 6 Jul., 11:12, tarik tarikkan...@gmail.com wrote: Dear Sir, We are developing an application using GWT, this application is very heavy of widgets, we are using a datatable that is developed in JQuery. We are suffering from a big memory leak. I did not find yet a way to resolve this problem can anyone help me please. The problem we have is that the memory on the hosted machine keeps increasing all the time. Can you please propose anyway to decrease the consumption of memory on my application? Please it is an urgent matter. nd help! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: JSON Problem
I don't think that the Gson project can be used as a GWT module.
Looks like it is for pure java development, not GWT development.
Take a look at: http://code.google.com/p/piriti/
http://code.google.com/p/piriti/This project is a GWT library that provide
JSON and XML facilities.
On Tue, Jul 6, 2010 at 5:22 AM, Ahmed Shoeib
ahmedelsayed.sho...@gmail.comwrote:
i face this problem
how i can fix it
the problem
/AdminPanel.java'
[ERROR] Line 139: No source code is available for type
com.google.gson.Gson; did you forget to inherit a required module?
Thanks,
ahmed shoeib
On Jul 5, 9:33 pm, André Moraes andr...@gmail.com wrote:
The response comes async.
When the response from the server arrives at the client the method
onResponseReceived in the RequestCallback object is called, if an
error hapens the the onErrormethod is called.
The RequestCallback object is the second parameter in the sendRequest
function call.
public void onResponseReceived(Request
request, Response response)
{
if (response.getStatusCode()
== 200 || response.getStatusCode()
== 304)
{
JavaScriptObject
responseData =
JsonHelper.stringToJso(response.getText()).cast());
// use the response
}
else
{
// invalid response
}
}
@Override
public void onError(Request request,
Throwable exception) {
// error on the resquest
}
});
On 5 jul, 15:01, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote:
you told me how to send request from client to server
now i want how yo get data from server to use it in client
and the data in json
On Jul 5, 8:12 pm, André Moraes andr...@gmail.com wrote:
This code is quite simple
The line:
re = rb.sendRequest(jsonrpc-call= + JsonHelper.jsoToString(call),
new RequestCallback()
prepare a AJAX call to the server and make your javascript object to
a
string using JsonHelper.jsoToString.
In ther server the json-string will be accessible by the parameter
jsonrpc-call.
The line:
if (response.getStatusCode()
== 200 || response.getStatusCode()
== 304)
{
JavaScriptObject
responseData =
JsonHelper.stringToJso(response.getText()).cast());
// use the response
}
get the response wrote by the server and make i availabe as a
JavaScriptObject.
You can use the JSONObject class to populate and read a
JavaScriptObject.
You can read more about JSON + GWT at:
http://code.google.com/intl/webtoolkit/webtoolkit/doc/latest/DevGuide...
andhttp://
code.google.com/intl/webtoolkit/webtoolkit/articles/using_gwt_...
On 5 jul, 12:50, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote:
i want a simple example to describe it
cause i need it as soon as possible
On Jul 5, 6:18 pm, André Moraes andr...@gmail.com wrote:
re = rb.sendRequest(jsonrpc-call= +
JsonHelper.jsoToString(call),
new RequestCallback() {
@Override
public void
onResponseReceived(Request request, Response response)
{
if
(response.getStatusCode() == 200 || response.getStatusCode()
== 304)
{
JavaScriptObject
responseData =
JsonHelper.stringToJso(response.getText()).cast());
// use the response
}
else
{
// invalid response
}
}
@Override
public void onError(Request
request, Throwable exception) {
// error on the resquest
}
});
public class JsonHelper {
public static String jsoToString(JavaScriptObject jso) {
if (isJsonLibraryDefined()) {
return
Re: How GWT-RPC handles polymorphic serialization?
? 2010/7/5 André Moraes andr...@gmail.com The GWT has the standard GWT-RPC to make easier to create RPC calls and fetch data from the server, but this tool only works if we have Java on the server side. In my current project, the server side will be .NET based. So I wrote a JSON-RPC library which implements the JSON-RPC standard to provide RPC facilities. The library is OK but I don't have the serialization facilities and I need to manually populate a JavaScriptObject with the information that i want transfered. I started now to write a automated serialization for the objects based on Annotations and Generatos, but i don't know how to discover the type of my object at runtime. I have a lot of polymorphic associations and will be nice to have some of those in my DTO's. So is there a way that I can get the type of a Object in GWT at runtime or I need to provide some Interface that my DTO's will need to implement that will have a method which returns some value that identify the type? If I need to use the Interface approach, is there a way that using generators I change the code of the class and then implement in a automated way? (Whithout defining the generator for each class in the module.gwt.xml) Thanks. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- André Moraes Analista de Desenvolvimento de Sistemas andr...@gmail.com http://andredevchannel.blogspot.com/ -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: align the widgets in DocLayoutPanel
Hello all, I've created a new Vertical Panel and I've added it in East Edge. Than I put the FlexTable in the Vertical Panel. But I still didnt align it on right side. I still cant change the position.. :( private DockLayoutPanel p = new DockLayoutPanel(Unit.EM); private VerticalPanel vPanel = new VerticalPanel(); private FlexTable testFlexTable = new FlexTable(); p.addNorth(new HTML(north), 5); p.addSouth(new HTML(south), 2); p.addEast(vPanel,40); p.addWest(new HTML(west)); p.add(new HTML(center)); testFlexTable.setText(0, 0, Symbol); testFlexTable.setText(0, 1, Price); testFlexTable.setText(0, 2, Change); testFlexTable.setText(0, 3, Remove); // I have tried to set the position of the Vertical Panel. But It didnt worked. It is still left side.. vPanel.add(testFlexTable); vPanel.setHorizontalAlignment(HasAlignment.ALIGN_RIGHT); vPanel.setCellHorizontalAlignment(testFlexTable, HasAlignment.ALIGN_RIGHT); any idea? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Joseph Favara/HQ/Corp/OAI is out of the office.
I will be out of the office starting 07/06/2010 and will not return until 07/07/2010. I will respond to your message when I return. If this is urgnet please contact Paul Frasceschini at 105628 -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
Use the new data table widget in gwt 2.1 M2 On Jul 6, 10:40 pm, metrixon metri...@gmail.com wrote: First of all: DON'T PANIC - the possibility of a good answer does not correlate with the number of exclamation marks used in the subject or text. Now concerning your problem: your problem description is very vague - essentially you are saying: my application does not work - tell me how to fix it. If the memory consumption increases on the machine that is hosting your application, the problem has nothing to do with GWT at all, since all the javascript code is generated at compile time and executed on the client side (in the browser). Your description indicates that your server side code is leaking memory. The best way to fix this problem is to thoroughly analyse your application's runtime behaviour by profiling the application with tools like JProfiler, Yourkit or the NetBeans Profiler. On 6 Jul., 11:12, tarik tarikkan...@gmail.com wrote: Dear Sir, We are developing an application using GWT, this application is very heavy of widgets, we are using a datatable that is developed in JQuery. We are suffering from a big memory leak. I did not find yet a way to resolve this problem can anyone help me please. The problem we have is that the memory on the hosted machine keeps increasing all the time. Can you please propose anyway to decrease the consumption of memory on my application? Please it is an urgent matter. nd help! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: align the widgets in DocLayoutPanel
Hi,
this works.
public class A implements EntryPoint {
/**
* This is the entry point method.
*/
public void onModuleLoad() {
DockLayoutPanel p = new DockLayoutPanel(Unit.EM);
p.addNorth(new HTML(north), 5);
p.addSouth(new HTML(south), 4);
HTML east = new HTML(div style='float: right;'east/div);
p.addEast(east, 20);
p.addWest(new HTML(west), 6);
Style style = p.getElement().getStyle();
style.setPosition(Position.ABSOLUTE);
style.setLeft(0, Unit.PX);
style.setRight(0, Unit.PX);
style.setTop(0, Unit.PX);
style.setBottom (0, Unit.PX);
RootPanel.get().add(p);
}
}
Stefan Bachert
http://gwtworld.de
On Jul 2, 6:06 pm, Stefan Bachert stefanbach...@yahoo.de wrote:
Hi,
try
DockLayoutPanel p = new DockLayoutPanel(Unit.EM);
p.addNorth(new HTML(north), 5);
p.addSouth(new HTML(south), 2);
HTML east = new HTML(east);
east.getElement().getStyle().setProperty(marginRight, auto);
p.addEast(east, 20);
p.addWest(new HTML(west), 2);
Not tested yet
Stefan Bacherthttp://gwtworld.de
On Jul 2, 10:28 am, nasionalem sakarya.me...@gmail.com wrote:
Hello,
I'm new in GWT development and need some help.
I use GWT 2.0 and in my project I have a DockLayoutPanel which
inculudes north, south, east and west. I have added a widget in East
edge. But Its on right side of the East edge. How can I align the
widget to the right side in East edge?
// Sample Code
DockLayoutPanel p = new DockLayoutPanel(Unit.EM);
p.addNorth(new HTML(north), 5);
p.addSouth(new HTML(south), 2);
p.addEast(new HTML(east), 20);
p.addWest(new HTML(west), 2);
p.addEast(sampleWidget,20);
//I have tried this
//
mainPanel.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_RIGHT);
//But it just align the things (texts, buttons...) to right side in
the widget.
// The widget still right side
Thanks
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Re: SuggestBox question - is it possible to react on sub sequences of the words?
Thanks for your reponses. So now I know that it is addtionally effort to do it, so I can talk to my project manager :-) I just wanted to be sure, that there is not a easy/fast way to do it. On 4 Jul., 10:30, Sebastian Rothbucher sebastian.rothbuc...@clarities.de wrote: Hi, I guess you have to provide an own SuggestionOracle which searches a List with a search algorithm that is a s good as possible... - I did provide an own suggestion oracle for another occation and it works quite well... On Jul 2, 5:21 pm, crojay78 croja...@googlemail.com wrote: Hi, I am using the suggest box in my app. Now I'm searching for the possibility to change the filter. Is it possible to change the behaviour so that not only words which start with the input will be suggested also words where the input occurs anywhere in the name. If I have a list like this Jim Tim Mike Frank Now it just reacts if you hit the first character. But I want that if you type in im you would have Jim and Tim as suggestions Thanks -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Make a Banner rotator whit ClientBundle or Java Script Nativ, what do you recomended?
Hi, Your question sounds like you want to add ads. ClientBundle is good for small static images. But do you want to recompile your app each time when an ads changes? Stefan Bachert http://gwtworld.de On 5 Jul., 14:10, Jero jero.carr...@gmail.com wrote: It is possible to insert multiple images with ClienteBundle and make a banner rotator? or make whit java script? Thanks Very much, Greetigs Jero. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Best way to handle multiple ajax calls of the same widget
Hi.
I'm working in a page that has some items that if the user clicks at
one, a table will be updated with an ajax call that brings the
information about the item clicked.
The problem is that when the user choose a item ( making the ajax call
A ) and them choose another ( making the ajax call B without waiting
for the first ajax call to complete ) sometimes the ajax call B
completes before the A one and them the widget updates the table with
the B data. After the A completes, the table updates with the A data
and thats the problem.
Is there a way to control that? I was thinking in abort the first call
but I really don't know how to do that. Has anyone come across with
this issue and has a good way to solve that?
The code:
dispatch.executeWithCache(new GetMedia(id),
new AsyncCallbackGetMediaResult() {
@Override
public void onFailure(Throwable caught)
{
table.removeAllRows();
table.setHTML(0, 0, Connection
Failure);
t.cancel();
}
@Override
public void onSuccess(GetMediaResult
result) {
t.cancel();
if (result.getMediaList() !=
null) {
if (mediaList != null) {
mediaList.clear();
}
mediaList =
result.getMediaList();
$(#projects h1,
getElement()).html(Conta strong + id + /
strong com strong + mediaList.size() + /strong campanhas);
initFill(15, 1);
if (status != null) {
updateTable(0,
15, status);
}
}
}
});
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Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
when I am testing my application on IE6, the problem that I find, is that the memory consumption keeps increasing. The same thing for Firefox. Besides, I apologize because my web application is running but once I click too many times the memory increases and it crashes. Can you please tell me how I can fix this? Thank you in advance. I am using a data table that has been developed in JQuery. And it seems that when I go to another page My application still references the same datatable. I want to know if there exist a way to delete all the doms and divisions that every time I create my table. If there exist any methods that I can add on the unload method when I detach my widget. Honestly it is an urgent matter, can you help me please? Thank you. On Tue, Jul 6, 2010 at 1:16 PM, Daniel Le Clere daniel.lecl...@gmail.comwrote: Use the new data table widget in gwt 2.1 M2 On Jul 6, 10:40 pm, metrixon metri...@gmail.com wrote: First of all: DON'T PANIC - the possibility of a good answer does not correlate with the number of exclamation marks used in the subject or text. Now concerning your problem: your problem description is very vague - essentially you are saying: my application does not work - tell me how to fix it. If the memory consumption increases on the machine that is hosting your application, the problem has nothing to do with GWT at all, since all the javascript code is generated at compile time and executed on the client side (in the browser). Your description indicates that your server side code is leaking memory. The best way to fix this problem is to thoroughly analyse your application's runtime behaviour by profiling the application with tools like JProfiler, Yourkit or the NetBeans Profiler. On 6 Jul., 11:12, tarik tarikkan...@gmail.com wrote: Dear Sir, We are developing an application using GWT, this application is very heavy of widgets, we are using a datatable that is developed in JQuery. We are suffering from a big memory leak. I did not find yet a way to resolve this problem can anyone help me please. The problem we have is that the memory on the hosted machine keeps increasing all the time. Can you please propose anyway to decrease the consumption of memory on my application? Please it is an urgent matter. nd help! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Tarik Kandil Consultant Informatique -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How GWT-RPC handles polymorphic serialization?
You need to use deferred binding i.e. GWT.create and write a code generator. I suggest you check out the GWT source code from SVN and look at their RPC generator code. On Jul 6, 8:54 am, André Moraes andr...@gmail.com wrote: ? 2010/7/5 André Moraes andr...@gmail.com The GWT has the standard GWT-RPC to make easier to create RPC calls and fetch data from the server, but this tool only works if we have Java on the server side. In my current project, the server side will be .NET based. So I wrote a JSON-RPC library which implements the JSON-RPC standard to provide RPC facilities. The library is OK but I don't have the serialization facilities and I need to manually populate a JavaScriptObject with the information that i want transfered. I started now to write a automated serialization for the objects based on Annotations and Generatos, but i don't know how to discover the type of my object at runtime. I have a lot of polymorphic associations and will be nice to have some of those in my DTO's. So is there a way that I can get the type of a Object in GWT at runtime or I need to provide some Interface that my DTO's will need to implement that will have a method which returns some value that identify the type? If I need to use the Interface approach, is there a way that using generators I change the code of the class and then implement in a automated way? (Whithout defining the generator for each class in the module.gwt.xml) Thanks. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2Bunsubs cr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- André Moraes Analista de Desenvolvimento de Sistemas andr...@gmail.comhttp://andredevchannel.blogspot.com/ -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Get the event associated with the flex table row
Hi, The idea here is to copy a row from one flex table to another. Copying is okay but when the copied row gets inserted as a new row in target flex table, the row looses the event associated with it. Each row is a composite widget consists of a label and button. The button has a delete functionality and label has some load functionality on double click. Is there any way to retain the events associated with button and label as a row so that when copied to another table should function the same way as it was in the previous table. Thanks, Ankit -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT 2.0.4 is now available
Sorry, what I meant was, projects developed at Google rarely utilize Maven. On Jul 4, 10:55 am, Mikael Couzic mikaelcou...@gmail.com wrote: I'm pretty sure the GWT group is not providing them because very few, if any, projects internally utilize maven. I do not agree. I use Maven, I believe many GWT projects use Maven, and the GWT group should make the effort to manage GWT releases on the Maven central repository. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Image Format Conversion + alternative to FileOutputStream
I was able to make the above code work with changes. But yours seems a
good approach as well.
Thank you for the help :)
On Jul 6, 3:21 pm, hriess hriess.chemn...@t-online.de wrote:
Here is a part from a servlet I use to scale pictures:
protected void doPost(HttpServletRequest request,
HttpServletResponse response) throws
ServletException, IOException
{
...
String angleStr = request.getParameter(angle);
...
// scale the image
ParameterBlock parameterBlock = new ParameterBlock();
parameterBlock.addSource(convertedImage);
parameterBlock.add(scale);
parameterBlock.add(scale);
parameterBlock.add(0.0f);
parameterBlock.add(0.0f);
parameterBlock.add(new InterpolationNearest());
PlanarImage scaledImage = JAI.create(scale, parameterBlock);
// create a jpeg stream
ByteArrayOutputStream byteArrayOutputStream = new
ByteArrayOutputStream();
JAI.create(encode, scaledImage, byteArrayOutputStream, jpeg);
ServletOutputStream servletOutputStream = response
.getOutputStream();
servletOutputStream.write(byteArrayOutputStream.toByteArray());
On the client side use the GWT image method 'setUrl' to pass the
parameters to te servlet (angle in the example).
Maybe I've misunderstood, but this istn't really a GWT problem.
I hope this helps
Holger
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Re: GWT 2.0.4 is now available
It'll probably come with GWT 2.1, because of the integration with Spring Roo which requires Maven good news, thanks! On Jul 6, 4:15 pm, jhulford jhulf...@gmail.com wrote: Sorry, what I meant was, projects developed at Google rarely utilize Maven. On Jul 4, 10:55 am, Mikael Couzic mikaelcou...@gmail.com wrote: I'm pretty sure the GWT group is not providing them because very few, if any, projects internally utilize maven. I do not agree. I use Maven, I believe many GWT projects use Maven, and the GWT group should make the effort to manage GWT releases on the Maven central repository. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
Can you tell me the name of the new datatable in this version? thank you On Tue, Jul 6, 2010 at 1:16 PM, Daniel Le Clere daniel.lecl...@gmail.comwrote: Use the new data table widget in gwt 2.1 M2 On Jul 6, 10:40 pm, metrixon metri...@gmail.com wrote: First of all: DON'T PANIC - the possibility of a good answer does not correlate with the number of exclamation marks used in the subject or text. Now concerning your problem: your problem description is very vague - essentially you are saying: my application does not work - tell me how to fix it. If the memory consumption increases on the machine that is hosting your application, the problem has nothing to do with GWT at all, since all the javascript code is generated at compile time and executed on the client side (in the browser). Your description indicates that your server side code is leaking memory. The best way to fix this problem is to thoroughly analyse your application's runtime behaviour by profiling the application with tools like JProfiler, Yourkit or the NetBeans Profiler. On 6 Jul., 11:12, tarik tarikkan...@gmail.com wrote: Dear Sir, We are developing an application using GWT, this application is very heavy of widgets, we are using a datatable that is developed in JQuery. We are suffering from a big memory leak. I did not find yet a way to resolve this problem can anyone help me please. The problem we have is that the memory on the hosted machine keeps increasing all the time. Can you please propose anyway to decrease the consumption of memory on my application? Please it is an urgent matter. nd help! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Tarik Kandil Consultant Informatique -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: RPC - which exception types may be used???
Hi,
what if an SQLException occurrs on the server?
in MyServiceImpl.java:
public boolean saveRecord (Record rec) // throws Exception
{
try
{
dbs.saveUser (usr);
}
catch (SQLException e)
{
// create MyException and throw it?
}
return (true);
}
Should I define an own Exception type or can I pass SQLException over
RPC somehow?
Thanks
Magnus
On Jul 5, 10:24 pm, andreas horst.andrea...@googlemail.com wrote:
From what I know you can use any type of exception, but:
- GWT needs to know the source (file) of the exception (it's either in
an inherited module or in your 'client' code or what ever package you
declared in your *.gwt.xml)
- it needs to be serializable (implement Serializable and do not
forget empty constructor)
That's it I think.
Andreas
On 5 Jul., 18:55, Magnus alpineblas...@googlemail.com wrote:
Hi,
I am trying to implement an RPC call that loads a record from a
database:
User loadUser (String nickname) throws Exception;
I tried different Exception types:
SQLException: results in mystic errors (not serializable)
Exception: results in error uncaught exception at the service call
IllegalArgumentException: works, but is not that what I want
Question 1:
What Exception types may be used for RPC?
Question 2:
Where (which source files) do I have to declare the exception?
Service
ServiceAsync
ServiceImpl
Thanks
Magnus
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Re: RPC - which exception types may be used???
Hi, another point is: If I declare my own exception type SystemService, and if I let the method throw this exception in all three implementation files (...Service, ...ServiceAsync, ...ServiceImpl), then I get an uncaught exception compiler error at the service invocation point. But this is not the case in the GreetingService example... What do I have to do that I can invoke the service callback without try/catch? Thanks Magnus -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Execute commands between RPC requests
Thank you Thomas, but I can not, please see where this error:
I created a class MyRpcRequestBuilder:
public class MyRpcRequestBuilder extends RpcRequestBuilder {
public MyRpcRequestBuilder() {
// Do something here
}
public void doSetCallback(RequestBuilder rb, RequestCallback callback) {
// Do something here
}
public void doFinish(RequestBuilder rb) {
// Do something here
}
}
Interface xxxServiceAsync:
public interface xxxServiceAsync {
public RequestBuilder method(String variable, AsyncCallbackVoid
callback);
}
And in class I try to use the feature do so:
xxxServiceAsync Service = GWT.create (xxxService.class);
RpcRequestBuilder theBuilder = new MyRpcRequestBuilder();
...
try {
service.metodo (variable, new AsyncCallbackVoid() {
public void onSuccess(Void result) {
// Do something here
}
public void onFailure (Throwable caught) {
// Do something here
}
}).send();
} catch (Exception ex) {
Window.alert (ex.getMessage ());
}
The error is: callback can not be null
And one more question doSetCallback the method used to when he
initiates the request or have to use another?
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Re: Execute commands between RPC requests
I forgot to tell you that I'm doing this too ((ServiceDefTarget)service).setRpcRequestBuilder(theBuilder); after RpcRequestBuilder theBuilder = new MyRpcRequestBuilder(); but the error continues -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: RPC - which exception types may be used???
1) I'm not sure if you can use SQLException since its source code is probably not known by GWT (it's not in an inherited module) so you better catch it and throw your own exception just like you suggested 2) I'm not 100% sure but I don't think the async service definition can throw exceptions; it just sort of wraps your service as an async version where the return type is wrapped in a async callback, the true service logic (return type, parameters and exception) is in the service and its implementation; also the exception thrown by the service method is accessible in the onFailure() method if the async callback Try removing the throws in your async service, it should work. Andreas On 6 Jul., 18:29, Magnus alpineblas...@googlemail.com wrote: Hi, another point is: If I declare my own exception type SystemService, and if I let the method throw this exception in all three implementation files (...Service, ...ServiceAsync, ...ServiceImpl), then I get an uncaught exception compiler error at the service invocation point. But this is not the case in the GreetingService example... What do I have to do that I can invoke the service callback without try/catch? Thanks Magnus -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT and telnet connections
I have another question, as I said I want to send responses from the server to the client but is it secure using GWT-RPC? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT Visualization not compiling on Netbeans
I also have this problem. On Jun 17, 5:17 pm, Luiz Gustavo Arruda gu.e...@gmail.com wrote: Hi guys! The following issue is happening when I'm trying to compile my project with as Visualization module on Netbeans. I've update all jars, (ajaxloader and gwt-visualization it self). Here is: Validating newly compiled units [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/visualizations/IntensityMap.j ava' [ERROR] Line 56: The method toJsArrayString(String[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/DataView.java' [ERROR] Line 61: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Line 73: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Line 81: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Line 93: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/DataTable.java' [ERROR] Line 140: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/visualizations/ImageChart.jav a' [ERROR] Line 113: The method toJsArrayString(String[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/visualizations/Gauge.java' [ERROR] Line 71: The method toJsArrayString(String[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/visualizations/AnnotatedTimeL ine.java' [ERROR] Line 127: The method toJsArrayString(String[]) is undefined for the type ArrayHelper [ERROR] Line 199: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Line 373: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Line 385: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/CommonOptions.java' [ERROR] Line 61: The method toJsArrayString(String[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/visualizations/GeoMap.java' [ERROR] Line 70: The method toJsArrayInteger(int[]) is undefined for the type ArrayHelper [ERROR] Errors in 'jar:file:/C:/gwt-visualization-1.1.0/gwt-visualization-1.1.0/gwt-visualiza tion.jar!/com/google/gwt/visualization/client/VisualizationUtils.java' [ERROR] Line 30: The method toJsArrayString(String[]) is undefined for the type ArrayHelper [ERROR] Line 44: The method toJsArrayString(String[]) is undefined for the type ArrayHelper Finding entry point classes Anyone knows what is this all about? Best regards. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
Hi, I doubt that you will get any definite answers if you don't provide a more thorough analysis of your problem. Generally just try to release all references to heavy-weight objects you don't need anymore as soon as possible. This holds true especially for global instances, e.g. singletons. If that doesn't help consider using weak references (see http://java.sun.com/j2se/1.4.2/docs/api/java/lang/ref/WeakReference.html). /Matthias P.S.: Also use less exclamation marks please. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
Hello there,
Executing locally my project, after a long time of browser refreshs of my
application, the Jetty freezes.
I have identified that is a memory leak problem of Jetty, then I've added
the following VM args to my pom.xml
plugin
groupIdorg.codehaus.mojo/groupId
artifactIdgwt-maven-plugin/artifactId
configuration
runTarget${gwt.runtarget.html}/runTarget
extraJvmArgs
*-server -Xms1024m -Xmx1024m -XX:MaxPermSize=512m -XX:ParallelGCThreads=20
-XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:SurvivorRatio=8
-XX:TargetSurvivorRatio=75 -XX:MaxTenuringThreshold=0 -XX:+AggressiveOpts
-XX:-TraceClassUnloading -Dsun.io.useCanonCaches=false
-Dsun.net.client.defaultConnectTimeout=6
-Dsun.net.client.defaultReadTimeout=6*
/extraJvmArgs
**
*
*
I hope that works for you ;)
best regards
2010/7/6 Matthias Groß f0r7y@googlemail.com
Hi,
I doubt that you will get any definite answers if you don't provide a
more thorough analysis of your problem.
Generally just try to release all references to heavy-weight objects
you don't need anymore as soon as possible. This holds true especially
for global instances, e.g. singletons.
If that doesn't help consider using weak references (see
http://java.sun.com/j2se/1.4.2/docs/api/java/lang/ref/WeakReference.html).
/Matthias
P.S.:
Also use less exclamation marks please.
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Re: GWT 2.0.4 is now available
It's true, Spring Roo is current dependent on Maven, so it makes sense for GWT support for Maven to improve. However, I've used the gwt maven codehaus plugin in previous projects and it works well: http://mojo.codehaus.org/gwt-maven-plugin-1.2/ -- Arthur Kalmenson On Mon, Jul 5, 2010 at 5:43 PM, Thomas Broyer t.bro...@gmail.com wrote: On 4 juil, 16:55, Mikael Couzic mikaelcou...@gmail.com wrote: I'm pretty sure the GWT group is not providing them because very few, if any, projects internally utilize maven. I do not agree. I use Maven, I believe many GWT projects use Maven, and the GWT group should make the effort to manage GWT releases on the Maven central repository. It'll probably come with GWT 2.1, because of the integration with Spring Roo which requires Maven (don't ask me why, that's what I've been told). We're starting a new project at work, with many server-side modules, so we chose to use Maven; and I'm therefore using the GWT 2.1.0-M2 Maven repository: http://google-web-toolkit.googlecode.com/svn/2.1.0.M2/gwt/maven/ -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Best way to handle multiple ajax calls of the same widget
Far away to understand your code I would recommend to disable all buttons (A,B,...) if the user presses button A. In the RPCs onSucces/ onError methods reactivate all buttons. To avoid that all buttons become disabled for ever if the server doesn't answer, implement a timeout with a timer. Start this timer simultaneous with the 'A' RPC call. GWT buttons can change their appearance in the 'disabled' state with CSS. So the user can see, that's not possible to press button B or button A twice. Although I think users are familiar with the asynchronous behavior of the internet. Another approach would be that thread B stops thread A on the server if it is still running. I've done this in connection with table paging to stop a cache filling thread. And it was a nightmare. But sometimes you have to stop time-consuming threads on the server if the user decides at once to call up some other information. Holger -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Slow OOPHM on Windows 7 64 bit
Not to be a pest, but does anyone have any suggestions on fixing incredibly slow OOPHM on Windows x64? On Jun 30, 11:54 pm, Kyle kyle.unverfe...@gmail.com wrote: I've recently upgraded my OS to Win7 x64, and Dev Mode is impossibly slow. The initial load used to take 10 seconds, and now it takes three minutes to loadOOPHM. My machine is a brand new MacBook Pro, if that matters. I've tested with Chrome, Firefox, and IE8, and all display the same long load time. I've tried eclipse 3.5 (Galileo) and 3.6 (Helios), and I've tried both x86 and x64 JDK and JVMs, but the same behavior occurs. Any help would be greatly appreciated.. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Best way to handle multiple ajax calls of the same widget
Sorry about the messy code, and thanks for the answer!! I'll try the first one. On Jul 6, 3:52 pm, hriess hriess.chemn...@t-online.de wrote: Far away to understand your code I would recommend to disable all buttons (A,B,...) if the user presses button A. In the RPCs onSucces/ onError methods reactivate all buttons. To avoid that all buttons become disabled for ever if the server doesn't answer, implement a timeout with a timer. Start this timer simultaneous with the 'A' RPC call. GWT buttons can change their appearance in the 'disabled' state with CSS. So the user can see, that's not possible to press button B or button A twice. Although I think users are familiar with the asynchronous behavior of the internet. Another approach would be that thread B stops thread A on the server if it is still running. I've done this in connection with table paging to stop a cache filling thread. And it was a nightmare. But sometimes you have to stop time-consuming threads on the server if the user decides at once to call up some other information. Holger -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How GWT-RPC handles polymorphic serialization?
Class.getName() is emulated On Jul 6, 9:04 am, Paul Stockley pstockl...@gmail.com wrote: You need to use deferred binding i.e. GWT.create and write a code generator. I suggest you check out the GWT source code from SVN and look at their RPC generator code. On Jul 6, 8:54 am, André Moraes andr...@gmail.com wrote: ? 2010/7/5 André Moraes andr...@gmail.com The GWT has the standard GWT-RPC to make easier to create RPC calls and fetch data from the server, but this tool only works if we have Java on the server side. In my current project, the server side will be .NET based. So I wrote a JSON-RPC library which implements the JSON-RPC standard to provide RPC facilities. The library is OK but I don't have the serialization facilities and I need to manually populate a JavaScriptObject with the information that i want transfered. I started now to write a automated serialization for the objects based on Annotations and Generatos, but i don't know how to discover the type of my object at runtime. I have a lot of polymorphic associations and will be nice to have some of those in my DTO's. So is there a way that I can get the type of a Object in GWT at runtime or I need to provide some Interface that my DTO's will need to implement that will have a method which returns some value that identify the type? If I need to use the Interface approach, is there a way that using generators I change the code of the class and then implement in a automated way? (Whithout defining the generator for each class in the module.gwt.xml) Thanks. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2Bunsubs cr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- André Moraes Analista de Desenvolvimento de Sistemas andr...@gmail.comhttp://andredevchannel.blogspot.com/ -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: xs linker does not support all GWT features?
http://code.google.com/p/google-web-toolkit/issues/detail?id=5046 mentions it's already in trunk and will likely make the 2.1 final release. On Jul 5, 9:22 pm, Jay kry...@tpg.com.au wrote: Is there an issue in the issue tracker in regards to this? I would like to track when and if this fix makes it into a release, but couldn't find anything by searching on xs linker and code splitting On Jul 3, 12:31 pm, Brendan Kenny bcke...@gmail.com wrote: Not sure if you meant to write just to me or reply to the list, but I'll forward this on to everyone. Shortly after I wrote that post it was discussed on the Contributors list that there was indeed a fundamental issue preventing the xs linker from working with code splitting, but that a patch was in the works. The fix landed on trunk in March http://code.google.com/p/google-web-toolkit/source/browse/trunk/dev/c... but I'm not sure if that made it into 2.0.4 (or whatever) or if it will be released with 2.1. On Tue, Jun 29, 2010 at 12:58 AM, Danny Goovaerts danny.goovae...@gmail.com wrote: I have exactly the same request,i.e. use the xs linker together with code splitting (I use code splitting to chunk up a rather large application (800k), but even then it is advantageous to have caching of the js modules when using https). DId anyone try to make the changes mentioned below? Did you succeed? Thanks in advance, Danny On 12 feb, 01:30, Brendan Kenny bcke...@gmail.com wrote: On Feb 11, 3:52 pm, Jonas Huckestein jonas.huckest...@me.com wrote: Hi everybody, does anybody know why thexslinker does not supportcode-splitting? Are there any other features that are not fully supported? I am currently trying to build a framework that allows for easy wave gadget development in GWT (including side-by-side testing of gadgets in hosted mode). Given the shortcomings of the gwt-gadget linker (which produces only one huge code file instead of one for each permutation), we were trying to figure out what else we could do over at the wave dev group. (you can follow the discussion here:http://groups.google.com/group/google-wave-api/browse_thread/thread/2... ) It would be nice to get some statement on this from a googler. Since Wave is developed using GWT I would like to be able to develop extensions using GWT, as well. Cheers, Jonas -- Jonas Huckesteinhttp://thezukunft.com Hi Jonas, Yes, the iframe (std) linker was the only official primary linker set up to handlecode splitting. I only use that linker and haven't dug too deeply, so I don't know if that was done because of a fundamental problem, for performance/efficiency reasons, or if was just left as an exercise to developers since there wasn't much of a call for it. If it's one of the latter two, it shouldn't be hard to adapt code from the iframe and selectionscript linkers and incorporate it into a version of thexslinker. If you aren't already familiar with it, the key method is doEmitCompilation() in SelectionScriptLinker. CompilationResult artifacts have a String array of the js code associated with that permutation, each entry containing a code fragment. The linker prepares the primary fragment to load correctly, but subsequent fragments are just output directly to a matching subdirectory. http://www.google.com/codesearch/p?hl=en#A1edwVHBClQ/dev/core/src/com.. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: gson module problem
Hi all, With the latest versions of GWT you don't have to use any other libraries. GWT now comes with something known as Javascript Overlays that you can utilise to convert JSON into Objects. See here: http://code.google.com/webtoolkit/doc/latest/DevGuideCodingBasicsOverlay.html Also I have made a bit of a discussion on my blog here: http://eggsylife.co.uk/2010/04/22/gwt-2-jsonp-and-javascript-overlays-with-jsonprequestbuilder/ Hope this helps, Eggsy On Jul 6, 1:38 pm, Harald Pehl harald.p...@googlemail.com wrote: You cannot use gson in GWT. Seehttp://groups.google.com/group/google-gson/browse_thread/thread/6c3d6... for more infos. If you need a JSON parser for GWT take a look at Piriti (http:// code.google.com/p/piriti/). - Harald On 6 Jul., 12:30, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote: Welcome , i add gson lib version 1.4 and i face a problem when trying to inherit it in the gwt.xml file how i can fix this problem ??? thanks , ahmed shoeib -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: JSON Problem
Hi all,
(As mentioned on the following post:
http://groups.google.com/group/google-web-toolkit/browse_thread/thread/b7c280baf2375841#
)
With the latest versions of GWT you don't have to use any other
libraries.
GWT now comes with something known as Javascript Overlays that you can
utilise to convert JSON into Objects.
See here:
http://code.google.com/webtoolkit/doc/latest/DevGuideCodingBasicsOverlay.html
Also I have made a bit of a discussion on my blog here:
http://eggsylife.co.uk/2010/04/22/gwt-2-jsonp-and-javascript-overlays-with-jsonprequestbuilder/
Hope this helps,
Eggsy
On Jul 6, 1:44 pm, André Moraes andr...@gmail.com wrote:
I don't think that the Gson project can be used as a GWT module.
Looks like it is for pure java development, not GWT development.
Take a look at:http://code.google.com/p/piriti/
http://code.google.com/p/piriti/This project is a GWT library that provide
JSON and XML facilities.
On Tue, Jul 6, 2010 at 5:22 AM, Ahmed Shoeib
ahmedelsayed.sho...@gmail.comwrote:
i face this problem
how i can fix it
the problem
/AdminPanel.java'
[ERROR] Line 139: No source code is available for type
com.google.gson.Gson; did you forget to inherit a required module?
Thanks,
ahmed shoeib
On Jul 5, 9:33 pm, André Moraes andr...@gmail.com wrote:
The response comes async.
When the response from the server arrives at the client the method
onResponseReceived in the RequestCallback object is called, if an
error hapens the the onErrormethod is called.
The RequestCallback object is the second parameter in the sendRequest
function call.
public void onResponseReceived(Request
request, Response response)
{
if (response.getStatusCode()
== 200 || response.getStatusCode()
== 304)
{
JavaScriptObject
responseData =
JsonHelper.stringToJso(response.getText()).cast());
// use the response
}
else
{
// invalid response
}
}
@Override
public void onError(Request request,
Throwable exception) {
// error on the resquest
}
});
On 5 jul, 15:01, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote:
you told me how to send request from client to server
now i want how yo get data from server to use it in client
and the data in json
On Jul 5, 8:12 pm, André Moraes andr...@gmail.com wrote:
This code is quite simple
The line:
re = rb.sendRequest(jsonrpc-call= + JsonHelper.jsoToString(call),
new RequestCallback()
prepare a AJAX call to the server and make your javascript object to
a
string using JsonHelper.jsoToString.
In ther server the json-string will be accessible by the parameter
jsonrpc-call.
The line:
if (response.getStatusCode()
== 200 || response.getStatusCode()
== 304)
{
JavaScriptObject
responseData =
JsonHelper.stringToJso(response.getText()).cast());
// use the response
}
get the response wrote by the server and make i availabe as a
JavaScriptObject.
You can use the JSONObject class to populate and read a
JavaScriptObject.
You can read more about JSON + GWT at:
http://code.google.com/intl/webtoolkit/webtoolkit/doc/latest/DevGuide...
andhttp://
code.google.com/intl/webtoolkit/webtoolkit/articles/using_gwt_...
On 5 jul, 12:50, Ahmed Shoeib ahmedelsayed.sho...@gmail.com wrote:
i want a simple example to describe it
cause i need it as soon as possible
On Jul 5, 6:18 pm, André Moraes andr...@gmail.com wrote:
re = rb.sendRequest(jsonrpc-call= +
JsonHelper.jsoToString(call),
new RequestCallback() {
@Override
public void
onResponseReceived(Request request, Response response)
{
if
(response.getStatusCode() == 200 || response.getStatusCode()
== 304)
{
JavaScriptObject
responseData =
JsonHelper.stringToJso(response.getText()).cast());
// use the response
}
How to select a value from dropDown menu...
hi i have one application where i have dropdown(listBox) menu to select items. now i want to take those selected item and store it in datastore. how do i take those selected item in a variable so that i can store it in datastore? Regards, Ravi Kumar Chaurasia ravikumarchaura...@gmail.com http://ravikumardk.blogspot.com/ Dept of Information Technology NIT,Durgapur -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
JSON no cache data access
Hi,
In my GWT application, I am using JSON async callback mechanism
(JSONP) to retrieve data from server side. Earlier I used cgi-bin perl
scripts on server side to retrieve data and return http object back to
the client (browser) via async callback function call. I figured that
resource usage is much higher for cgi-bin scripts. Hence I moved away
from cgi-bin scripts and instead resorted to passing data directly
from a data file in web root's path through a HTTP get request. That
is I am populating a data file located at WEB-ROOT/json/query_data
periodically. This is being updated a separate polling process on the
same server. This is read by client periodically to fetch JSON data.
Instead of calling a cgi-bin script such as WEB-ROOT/cgi-bin/query.pl
which does nothing but read query_data and package it into a HTTP
header and passes it back through output stream back to client, I am
attempting to directly read the JSON data file in my new
implementation where the data file is pre-formatted to look like a
callback function call.
eg: INITIALLY
--
WEB-ROOT/json/query_data:
{..},...{..}
which is just an array of JSON objects.
WEB-ROOT/cgi-bin/query.pl :
#!/usr/bin/perl
use CGI;
use Fcntl qw(:DEFAULT :flock);
$q = CGI-new();
print $q-header();
# Read data from /tmp/json/query_data on an exclusive file lock
open($file, /tmp/json/query_data)
or die {\type\:\JSONError\}\n;
flock($file, LOCK_SH)
or die {\type\:\FileLockError\}\n;
@raw_data=$file;
close($file)
or die can't close file: $!;
# Print JSON objects
print callback123([;
foreach $line(@raw_data) {
print $line;
}
print ]);;
When this script is called by client side code, JSON data from
query_data is packaged into callback123(); so that data is
transferred over as a JSON object through a asynchronous callback
mechanism. In my current implementation, I chose to bypass the above
cgi-bin script and instead, directly access the /tmp/json/query_data
file by creating a symbolic link in WEB-ROOT so that client can access
this file by just specifying URL http://IPADDR/json/query_data.
CURRENTLY:
---
WEB-ROOT/json/query_data:
callback123([{..},...{..}]);
client calls - http://IPADDR/json/query_data and expects JSON object
to be returned. This seems to work fine for the first request. However
subsequent requests still fetch cached data from previous
http://IPADDR/json/query_data access. I verified this by opening the
above URL on browser. On repeated navigation to this URL, instead of
getting updated data, I keep getting stale data from previous trial
and only a page refresh seems to actually go and fetch updated info.
How do I go around this?
Thanks,
Rajiv
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IS there a way to add buttons to stack panel header?
Hello, I would like to use a stack panel to control a list of data and would like to know if there is a way to add buttons to a stack panel header? I managed to create the content of the stack panel header with a title on the left and a label on the right as button or link but I cannot find out how to add any click handler on it. Is there a way to put a button in a stackpanel header or should I code my own stackpanel supporting that feature? Thank you. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Best way to style every other item?
Hey, I want to create a panel with a list of questions, with every other question shaded to make it more visible. Advice on the best way to do this in GWT? One option is the CSS :nth-item tag, but looks like that has incomplete support. When Drupal populates a list, it automatically adds a -even or -odd class to items; that seems better. Another option is to add a class like this manually when you add an item to the list, but then removing an item becomes a pain. Maybe there is a better way to do this automatically that I am missing? Let me know... Thanks for the help, Brett -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Problem with code which works in compiled mode and fails in hosted mode
Hi Alan,
It looks like you haven't received many replies yet. I ran into the
same problem, but I managed to find a solution. Albeit not the most
elegant, it did allow me to carry on working.
OK, your problem is around here
The actual lines of code are:
float [] perspectiveMatrix = createPerspectiveMatrix(45, 1,
0.1f, 1000);
WebGLUniformLocation uniformLocation =
glContext.getUniformLocation(shaderProgram, perspectiveMatrix);
checkError();
glContext.uniformMatrix4fv(uniformLocation, false,
perspectiveMatrix);
Right?
There seem to be a problem with the binding and how it parses certain
arguments. So, for instance, in the case of the FlatShader or the
BasicShader3D, the issue with the matrices was solved here:
http://code.google.com/p/gwt-g3d/issues/detail?id=2can=1q=TBasicShader3D%20setModelViewMatrix%20causes%20JavaScript%20error
Basically, it needed to replace the following code:
public void setProjectionMatrix(Matrix4f value) {
gl.uniformMatrix(getUniformLocation(uProjectionMatrix),
value);
}
with:
public void setProjectionMatrix(Matrix4f value) {
// gl.uniformMatrix(getUniformLocation(uProjectionMatrix),
value);
float[] matrixValue = MatrixUtils.toFloatArray(value);
WebGLUniformLocation mvMatrixLoc =
getUniformLocation(uProjectionMatrix);
gl.uniformMatrix4fv(mvMatrixLoc, false,
WebGLFloatArray.createArray(matrixValue));
}
And similarly with the ModelView. As you can see, in your case the
perspectiveMatrix needs to be passed in as
WebGLFloatArray.createArray(perspectiveMatrix).
Hope this helps you, and let's hope the guys manage to get this fix
into their next release. I've been trying other WebGL wrappers for
GWT, but it does seem like these guys have gone further than anybody.
Funny thing though is that their examples do not work with Google's
chromium, but with Mozilla's minefield. Go figure.
Regards.
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addDomHandler with Internet Explorer
I am calling addDomHandler with ChangeHandler as described here: http://stackoverflow.com/questions/3098694/enabling-and-disabling-save-button-on-a-gwt-page The problem is that for IE the change event is not firing for listbox changes. This works in Chrome and Firefox. Any thoughts? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
create web service inside GWT project
Hello people, I have a hard time figuring out what would be the best approach for my problem. I'd like to communicate some info from the server (side logic) to an MS-Office macro. I could always use ODBC to let the office macro query the database directly but that just feels like a kludge. I've got a lot of objects in my application in which a lot of processing is already implemented. So, I figure, the best way would be to create a web service (SOAP?) inside the gwt server-side implementation that can be queried by outside applications. I've done a lot of searching, but haven't really found any definitive way that would be best. Should I use an existing RPC/SOAP/JSON library and try to integrate it into GWT's structure (how to configure web.xml? etc. etc.)? Is there something already provided by google or in de code projects? Any thoughts and tips would be greatly appreciated. Arian Prins. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
How to access particular text in RichText area to read back attributes or alter them?
I sent a version of the note below to the GWT Rich-Text Editor group. But then I noticed that there are a number of discussions of RichText in this much larger group. I need all the help I can get ;-) I would like some guidance on how to go about designing an app that would do things such as the following: The server downloads text, as an array (Collection) of tokens (Strings), which would be displayed in the text area. Other arrays of information would be downloaded that could be used to decorate the text. For example, say we downloaded information about which of the tokens or token groups are the names of companies. The user would have a menu that includes the item Companies. When that menu item is selected, the text for the companies would be highlighted in red. The basic question for this type of app is: How do I access particular Strings and alter their styling? Is DOM the way to go? In the dual problem, how would I discover a String that the user has selected and designated as a company - one that was not on the original list? The String chosen would be returned to the server to update its list of company names. This type of application is typical of many apps that would be of great benefit to researchers in natural language processing. There are about 600 members of the mailing list at my site, bionlp.org, many of who would be interested in such apps. Any and all suggestions, leads, etc., most welcome. - Bob -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
Hi, We get the same issue in our application, lots of widget many refresh of content, add and remove widget. Usualy we noticed that we kept widget in a list as a member of a composite. When the composite was removed the list stay in memory, so to solve the problem we implement a cleaning method overriding the onUnload() method called by GWT framework. regards Olivier On Jul 6, 9:53 am, tarik kandil tarikkan...@gmail.com wrote: when I am testing my application on IE6, the problem that I find, is that the memory consumption keeps increasing. The same thing for Firefox. Besides, I apologize because my web application is running but once I click too many times the memory increases and it crashes. Can you please tell me how I can fix this? Thank you in advance. I am using a data table that has been developed in JQuery. And it seems that when I go to another page My application still references the same datatable. I want to know if there exist a way to delete all the doms and divisions that every time I create my table. If there exist any methods that I can add on the unload method when I detach my widget. Honestly it is an urgent matter, can you help me please? Thank you. On Tue, Jul 6, 2010 at 1:16 PM, Daniel Le Clere daniel.lecl...@gmail.comwrote: Use the new data table widget in gwt 2.1 M2 On Jul 6, 10:40 pm, metrixon metri...@gmail.com wrote: First of all: DON'T PANIC - the possibility of a good answer does not correlate with the number of exclamation marks used in the subject or text. Now concerning your problem: your problem description is very vague - essentially you are saying: my application does not work - tell me how to fix it. If the memory consumption increases on the machine that is hosting your application, the problem has nothing to do with GWT at all, since all the javascript code is generated at compile time and executed on the client side (in the browser). Your description indicates that your server side code is leaking memory. The best way to fix this problem is to thoroughly analyse your application's runtime behaviour by profiling the application with tools like JProfiler, Yourkit or the NetBeans Profiler. On 6 Jul., 11:12, tarik tarikkan...@gmail.com wrote: Dear Sir, We are developing an application using GWT, this application is very heavy of widgets, we are using a datatable that is developed in JQuery. We are suffering from a big memory leak. I did not find yet a way to resolve this problem can anyone help me please. The problem we have is that the memory on the hosted machine keeps increasing all the time. Can you please propose anyway to decrease the consumption of memory on my application? Please it is an urgent matter. nd help! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Tarik Kandil Consultant Informatique -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Does it exist a place to suggest improvement ?
Hi there. I am wondering if there is a place to suggest needs of improvement for GWT. I am working on a project and we tried to put in place some architecture that needs some improvement. For the time being we are using as it is, but soon we will have to refactor. And I think this is part of the community exchange, not only code but idea to make GWT better and better. Olivier -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
Can you tell me what you have implemented in this methode please, can you show me the methode implementation, thank you. On Tue, Jul 6, 2010 at 3:49 PM, Olivier olivier.dau...@gmail.com wrote: Hi, We get the same issue in our application, lots of widget many refresh of content, add and remove widget. Usualy we noticed that we kept widget in a list as a member of a composite. When the composite was removed the list stay in memory, so to solve the problem we implement a cleaning method overriding the onUnload() method called by GWT framework. regards Olivier On Jul 6, 9:53 am, tarik kandil tarikkan...@gmail.com wrote: when I am testing my application on IE6, the problem that I find, is that the memory consumption keeps increasing. The same thing for Firefox. Besides, I apologize because my web application is running but once I click too many times the memory increases and it crashes. Can you please tell me how I can fix this? Thank you in advance. I am using a data table that has been developed in JQuery. And it seems that when I go to another page My application still references the same datatable. I want to know if there exist a way to delete all the doms and divisions that every time I create my table. If there exist any methods that I can add on the unload method when I detach my widget. Honestly it is an urgent matter, can you help me please? Thank you. On Tue, Jul 6, 2010 at 1:16 PM, Daniel Le Clere daniel.lecl...@gmail.comwrote: Use the new data table widget in gwt 2.1 M2 On Jul 6, 10:40 pm, metrixon metri...@gmail.com wrote: First of all: DON'T PANIC - the possibility of a good answer does not correlate with the number of exclamation marks used in the subject or text. Now concerning your problem: your problem description is very vague - essentially you are saying: my application does not work - tell me how to fix it. If the memory consumption increases on the machine that is hosting your application, the problem has nothing to do with GWT at all, since all the javascript code is generated at compile time and executed on the client side (in the browser). Your description indicates that your server side code is leaking memory. The best way to fix this problem is to thoroughly analyse your application's runtime behaviour by profiling the application with tools like JProfiler, Yourkit or the NetBeans Profiler. On 6 Jul., 11:12, tarik tarikkan...@gmail.com wrote: Dear Sir, We are developing an application using GWT, this application is very heavy of widgets, we are using a datatable that is developed in JQuery. We are suffering from a big memory leak. I did not find yet a way to resolve this problem can anyone help me please. The problem we have is that the memory on the hosted machine keeps increasing all the time. Can you please propose anyway to decrease the consumption of memory on my application? Please it is an urgent matter. nd help! -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com google-web-toolkit%2bunsubscr...@googlegroups.comgoogle-web-toolkit%252bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Tarik Kandil Consultant Informatique -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Tarik Kandil Consultant Informatique -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Execute commands between RPC requests
solve the problem, the interface replaces the RequestBuilder by void, removed the .send() and in the method doSetCallback of the class MyRpcRequestBuilder added the following line: rb.setCallback (callback); And in the method doFinish: rb.setHeader (STRONG_NAME_HEADER, GWT.getPermutationStrongName ()); -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: GWT Confluence Plugin
I haven't actually done this, but essentially you'd include the files created by GWT as web resources in your plugin. Your macro module would render a div to be enhanced by GWT, and would also call requireResources to include the generated GWT files. RPC endpoints would be servlet modules. It might be a good idea to write a trivial version of your plugin using plain javascript first, just to get to grips with the basic mechanics of macros and web resources. Tom -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Does it exist a place to suggest improvement ?
Making GWT Better http://code.google.com/webtoolkit/makinggwtbetter.html GWT issue tracker http://code.google.com/p/google-web-toolkit/issues/entry Cheers JZ On Tue, Jul 6, 2010 at 7:30 PM, Olivier olivier.dau...@gmail.com wrote: Hi there. I am wondering if there is a place to suggest needs of improvement for GWT. I am working on a project and we tried to put in place some architecture that needs some improvement. For the time being we are using as it is, but soon we will have to refactor. And I think this is part of the community exchange, not only code but idea to make GWT better and better. Olivier -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Urgent!!!!!!!!!!!!!!!!!!!!!!!!!!! GWT 2 Memory leak
First, I would like to mention that I am using GWT2.0. I have a problem in a data table that I have developed using JQuery, I have many widgets, and I am using gwittir binding. Besides, I am using bindable collection in my datatable. After analysing my application, I found that there are some elements that are not deleted in IE6. Also, the memory keeps incrceasing all the time. Even if i change to a new page or i refresh the memory keeps increasing when i filtre or go to another page or I do any action(memory leak). Can you please tell me how to avoid the increasing of the memory through the whole application, add methods to delete elements when i go from page to page, or something like this. Thank you in advance. 2010/7/6 Matthias Groß f0r7y@googlemail.com Hi, I doubt that you will get any definite answers if you don't provide a more thorough analysis of your problem. Generally just try to release all references to heavy-weight objects you don't need anymore as soon as possible. This holds true especially for global instances, e.g. singletons. If that doesn't help consider using weak references (see http://java.sun.com/j2se/1.4.2/docs/api/java/lang/ref/WeakReference.html). /Matthias P.S.: Also use less exclamation marks please. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en. -- Tarik Kandil Consultant Informatique -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Standards Mode + Decorated Popup Panel + IE == FAIL
I am having a problem where I have changed to standards mode in order to use layout panels, but it seems to have broken decorated popup panel in IE(the popup shows, but the rest of the screen turns white behind it). I have taken a very rough look with Firebug Lite and didn't see anything obvious and was just wondering if anyone else has seen this problem. Again, I have not done a whole lot of debugging yet, but I am in standards mode with IE6 and a DockLayoutPanel as my root. When I click on the button to pop up the popup shows up, but everything else goes white, but as soon as you resize the window everything paints correctly again. Is there a way to tell the browser to manually do a repaint maybe? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: BigDecimal - Can you add it to 2.1 version
The Harmony team is not involved, I'm just some random guy. My mistake - I thought the BigDecimal code was based on Harmony's BigDecimal as it was mentioned in response to an issue I raised. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: onSuccess() return value other than void?
Hi day_trader As far as i can think is that you are trying to pass an object with the data of the class.. now to make your class go to the server side all you need to do is to move it to a package that is in the package that is *not* mentioned in your your_gwt_xml.gwt.xml file as the classes in these packages,which are mentioned in the gwt.xml file, get ajaxified and sent on to the client. Hope this helps. Sunny. On Jul 6, 5:04 pm, day_trader mwmcmul...@gmail.com wrote: Thanks for the replies thus far. That all makes sense. I did have strong doubts about the likelihood of what I wanted but as I am not an expert in the field I thought it was better to make sure. Actually, my problems would be solved quite quickly if I got around my initial problem that led to this posting. Basically, there is a class in my client side, under myApp.client.models.SomeModel that I need to pass to the server. The problem is that the server cannot see this class as I get an error when I try to compile it. My question is: How do I check if the class is on my SERVER classpath? Thanks :) -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: How to put a CellTable into a fixed relative sized div?
hi jantekb this is definetely not a bug but you can say more of a feature.:-) the reason bieng is that when you are giving the size in px you are mentioning the absolute size so the fixed size thus you observed that but when you are giving the size in percentage there is no refrence to any fixed size so it resizes according to widgets added on to it to observe the desired result i would rather suggest to first create a panel with a Definite static size and then work with relative size on it to get your desired result. hope this helps Sunny. On Jul 6, 3:14 pm, jantekb jant...@gmail.com wrote: Still no solution.. Do you think this might be a bug? -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
-XdisableClassMetadata compiler flag - Was [Re: Hiding fully qualified class name sent to the browser]
Hi,
I tried to use the compiler flag *-XdisableClassMetadata* to replace the
classnames
as suggested by Olivier. But the classnames still appear in the *.cache.html
files.
I tried both in maven POM.xml also in the Google Eclipse Plugin.
My POM.xml code snippet like this
plugin
groupIdorg.codehaus.mojo/groupId
artifactIdgwt-maven-plugin/artifactId
version${gwt-maven-plugin.version}/version
configuration
disableCastCheckingtrue/disableCastChecking
disableClassMetadatatrue/disableClassMetadata
resourcesOnPathfalse/resourcesOnPath
runTargetsrc/main/webapp/index.html/runTarget
webappDirectorysrc/main/webapp/webappDirectory
styleOBF/style
extraJvmArgs-Xmx2048m -Xss4024k/extraJvmArgs
/configuration
executions
execution
goals
goalcompile/goal
/goals
/execution
/executions
/plugin
What is the right way to achieve this?
thanks
moorsu.
On Wed, Jun 23, 2010 at 8:50 PM, Olivier Monaco olivier.mon...@free.frwrote:
Hi,
If your problem comes from class name included in the JavaScript files
(and affected to some properties of JavaScript object), you can try to
use the following optimization:
http://code.google.com/p/google-web-toolkit/wiki/NoClassMetadataOptimization
Olivier
On Jun 22, 3:55 pm, moorsu moo...@gmail.com wrote:
Hi,
Would it be possible to obfuscate the fully qualified class name which
is
visible at the browser if you use firebug?.
I would like to see it as a.b.c.d instead
com.mycompany.myproduct.mypackage.MyClassName.
Also I do not use the same domain object as model but use Lists and
Maps to send data to
browser.
thanks!
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Re: How to get the row number of a flex table
hi Vik, try FlexCellFormatter formatter = FlexTable.getCellFormatter().getRowNum(); hope this helps Sunny. On Jul 6, 9:09 am, aditya sanas 007aditya.b...@gmail.com wrote: you can set buttons ID by the method getElement().setId(); you can set Id as row number and as whenever button get clicked you will have to check its id by getElement().getId() which is row number that we had set. -- Aditya On Mon, Jul 5, 2010 at 8:53 AM, Vik vik@gmail.com wrote: Hie I have a table extending a FlexTable. In every row there is Button. On clicking this button I want to know the row number of the table. Any idea on how to achieve this? Thankx and Regards Vik Founder www.sakshum.com www.sakshum.blogspot.com -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.comgoogle-web-toolkit%2bunsubscr...@googlegroups.com . For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.- Hide quoted text - - Show quoted text - -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: Session/realising user login
... this can't be that hard? On Jul 5, 10:35 pm, rapsli raphaelschae...@gmail.com wrote: Hi I'm trying to build some kind of user login: Password username form - submit send RPC request to server. Server checks password and stores username in session. Then I have a timebased call, that checks the server (via RPC - method is called isLoggedIn()) if the user is logged in. If not, Gui is going to be blocked and login form will be displayed. Part of my isLoggedIn method looks like this: HttpServletRequest req = getThreadLocalRequest(); getThreadLocalRequest().getSession(false); getThreadLocalRequest() returns null. Google told me that this was because of the way GWT is implementing Servlets (Front Controller pattern). I though could not find the correct way of doing it. Help would be nice. -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: User management in GWT
Ben Alex did a wonderful presentation in Sweden http://vimeo.com/12641333 -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
gwt plugin for firefox 4 beta 1
Hie I am unable to run gwt stuff on firefox 4 beta 1 due to missing google gwt plugin. How to get it? Thankx and Regards Vik Founder www.sakshum.com www.sakshum.blogspot.com -- You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
Re: JSON no cache data access
Hi,
I was wondering in your GWT code, do you cleanup the script after
processing the callback?
If you look at:
http://code.google.com/intl/nl-NL/webtoolkit/doc/latest/tutorial/Xsite.html
there is some
documentation with regards to
[5] Before the timeout function completes, it removes the new
script element and the callback function from window.
Could it be that the your script is not removed from the browser yet
and as a result, will not reload correctly?
Best regards,
Jeroen Janssen
On 7 jul, 00:33, txciggy rajiv.r...@gmail.com wrote:
Hi,
In my GWT application, I am using JSON async callback mechanism
(JSONP) to retrieve data from server side. Earlier I used cgi-bin perl
scripts on server side to retrieve data and return http object back to
the client (browser) via async callback function call. I figured that
resource usage is much higher for cgi-bin scripts. Hence I moved away
from cgi-bin scripts and instead resorted to passing data directly
from a data file in web root's path through a HTTP get request. That
is I am populating a data file located at WEB-ROOT/json/query_data
periodically. This is being updated a separate polling process on the
same server. This is read by client periodically to fetch JSON data.
Instead of calling a cgi-bin script such as WEB-ROOT/cgi-bin/query.pl
which does nothing but read query_data and package it into a HTTP
header and passes it back through output stream back to client, I am
attempting to directly read the JSON data file in my new
implementation where the data file is pre-formatted to look like a
callback function call.
eg: INITIALLY
--
WEB-ROOT/json/query_data:
{..},...{..}
which is just an array of JSON objects.
WEB-ROOT/cgi-bin/query.pl :
#!/usr/bin/perl
use CGI;
use Fcntl qw(:DEFAULT :flock);
$q = CGI-new();
print $q-header();
# Read data from /tmp/json/query_data on an exclusive file lock
open($file, /tmp/json/query_data)
or die {\type\:\JSONError\}\n;
flock($file, LOCK_SH)
or die {\type\:\FileLockError\}\n;
@raw_data=$file;
close($file)
or die can't close file: $!;
# Print JSON objects
print callback123([;
foreach $line(@raw_data) {
print $line;}
print ]);;
When this script is called by client side code, JSON data from
query_data is packaged into callback123(); so that data is
transferred over as a JSON object through a asynchronous callback
mechanism. In my current implementation, I chose to bypass the above
cgi-bin script and instead, directly access the /tmp/json/query_data
file by creating a symbolic link in WEB-ROOT so that client can access
this file by just specifying URL http://IPADDR/json/query_data.
CURRENTLY:
---
WEB-ROOT/json/query_data:
callback123([{..},...{..}]);
client calls - http://IPADDR/json/query_data and expects JSON object
to be returned. This seems to work fine for the first request. However
subsequent requests still fetch cached data from previous
http://IPADDR/json/query_data access. I verified this by opening the
above URL on browser. On repeated navigation to this URL, instead of
getting updated data, I keep getting stale data from previous trial
and only a page refresh seems to actually go and fetch updated info.
How do I go around this?
Thanks,
Rajiv
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[gwt-contrib] JSIO vs Overlay Types
Hi Guys, I have a question for you about Overlay Types and the JSIO library. I'm working on a GWT interface to the Google Maps JavaScript API, and am wondering about the difference in performance between the two approaches. With JSIO I've been using wrapper objects that each contain an instance of a JavaScriptObject being wrapped, and contain a reference to a singleton instance of the flyweight wrapper. My guess is that the performance would be better if I used Overlay Types instead, but I am just guessing. Do you know (roughly) what the difference in performance is between the two approaches? Thanks for your help, Daniel -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
[gwt-contrib] Re: Comment on NoClassMetadataOptimization in google-web-toolkit
Comment by moorsu: Please note that the spelling of the compile flag. It should be -XdisableClassMetadata For more information: http://code.google.com/p/google-web-toolkit/wiki/NoClassMetadataOptimization -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
[gwt-contrib] Re: Comment on NoClassMetadataOptimization in google-web-toolkit
Comment by moorsu:
Please note the spelling of the compiler flag.
It should be
{{{
-XdisableClassMetadata
}}}
For more information:
http://code.google.com/p/google-web-toolkit/wiki/NoClassMetadataOptimization
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Re: [gwt-contrib] JSIO vs Overlay Types
On Tue, Jul 6, 2010 at 3:08 AM, Daniel Bell daniel.r.b...@gmail.com wrote: I have a question for you about Overlay Types and the JSIO library. I'm working on a GWT interface to the Google Maps JavaScript API, and am wondering about the difference in performance between the two approaches. With JSIO I've been using wrapper objects that each contain an instance of a JavaScriptObject being wrapped, and contain a reference to a singleton instance of the flyweight wrapper. My guess is that the performance would be better if I used Overlay Types instead, but I am just guessing. Do you know (roughly) what the difference in performance is between the two approaches? First question - why aren't you using the official GWT APIs for Maps instead of writing your own? http://code.google.com/p/gwt-google-apis/ If there is something you need that isn't included, why not contribute to that rather than create your own from scratch? Overlay types are a bit more efficient and don't require a generator running which makes DevMode faster, but I don't think there is a lot of difference. -- John A. Tamplin Software Engineer (GWT), Google -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
Re: [gwt-contrib] JSIO vs Overlay Types
Overlay types are the way to go. The gwt-maps API use jsio because it predates overlay types. On Jul 6, 2010 11:18 AM, John Tamplin j...@google.com wrote: On Tue, Jul 6, 2010 at 3:08 AM, Daniel Bell daniel.r.b...@gmail.com wrote: I have a question for you about Overlay Types and the JSIO library. I'm working on a GWT interface to the Google Maps JavaScript API, and am wondering about the difference in performance between the two approaches. With JSIO I've been using wrapper objects that each contain an instance of a JavaScriptObject being wrapped, and contain a reference to a singleton instance of the flyweight wrapper. My guess is that the performance would be better if I used Overlay Types instead, but I am just guessing. Do you know (roughly) what the difference in performance is between the two approaches? First question - why aren't you using the official GWT APIs for Maps instead of writing your own? http://code.google.com/p/gwt-google-apis/ If there is something you need that isn't included, why not contribute to that rather than create your own from scratch? Overlay types are a bit more efficient and don't require a generator running which makes DevMode faster, but I don't think there is a lot of difference. -- John A. Tamplin Software Engineer (GWT), Google -- http://groups.google.com/group/Google-Web-Toolkit-Contributors -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
Re: [gwt-contrib] JSIO vs Overlay Types
Thanks for the feedback. The reason I'm not using the official Maps API is that I need to use version 3 of the JavaScript API, which isn't supported by the GWT Google APIs project yet. The more developed of the GWT Maps Libraries (http://code.google.com/p/gwt-google-maps-v3/) uses JSIO for everything, rather than overlay types, so I'm concerned about performance in the case that lots (hundreds or so) of objects are being rendered on the map. At the moment it's looking like I'll contribute some changes there. Thanks again, Daniel On 7 July 2010 03:20, Eric Ayers zun...@google.com wrote: Overlay types are the way to go. The gwt-maps API use jsio because it predates overlay types. On Jul 6, 2010 11:18 AM, John Tamplin j...@google.com wrote: On Tue, Jul 6, 2010 at 3:08 AM, Daniel Bell daniel.r.b...@gmail.com wrote: I have a question for you about Overlay Types and the JSIO library. I'm working on a GWT interface to the Google Maps JavaScript API, and am wondering about the difference in performance between the two approaches. With JSIO I've been using wrapper objects that each contain an instance of a JavaScriptObject being wrapped, and contain a reference to a singleton instance of the flyweight wrapper. My guess is that the performance would be better if I used Overlay Types instead, but I am just guessing. Do you know (roughly) what the difference in performance is between the two approaches? First question - why aren't you using the official GWT APIs for Maps instead of writing your own? http://code.google.com/p/gwt-google-apis/ If there is something you need that isn't included, why not contribute to that rather than create your own from scratch? Overlay types are a bit more efficient and don't require a generator running which makes DevMode faster, but I don't think there is a lot of difference. -- John A. Tamplin Software Engineer (GWT), Google -- http://groups.google.com/group/Google-Web-Toolkit-Contributors -- http://groups.google.com/group/Google-Web-Toolkit-Contributors -- http://groups.google.com/group/Google-Web-Toolkit-Contributors
