Re: Google Chart API Vs Visualization API
Not really gwt related, but the chart api builds static png files. The visualivation api builds interactive svg / java script. On Apr 16, 2009 12:20 PM, Sam mythreye...@gmail.com wrote: Can somebody highlight the differences between Chart API and Visualization API? Which is more powerful in terms of creating bar graphs and pie charts? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT hosted mode ubuntu 8.10 - does not show content
Are you running the 32 or 64 bit version of ubuntu? The hosted browser runs only in 32 bit mode. I can't remember if your symptoms match what the hosted browser does in a 64bit environment or not. There is a simple workaround that requires downloading a 32 bit version of the jdk. Search the group for the details. -Jeremiah Elliott On Sun, Mar 22, 2009 at 4:51 PM, jakob.ga...@gmail.com jakob.ga...@gmail.com wrote: Hi, After reading, searching and trying, I still can't get hosted mode to work on my system. The shell starts just fine, but even the Hello sample doesn't render. Nothing happens and the Compile/Browse button is grayed out. Anyone who was able to fix this problem? --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT Enhancements RoadMap
http://googlewebtoolkit.blogspot.com/ this answers some of your questions. On Wed, Dec 10, 2008 at 8:21 PM, GWTFan valavanur...@gmail.com wrote: In the Google IO conference this year we brought up the discussion on using toolkits like GXT (for its richness and for widgets like datepicker, closable tabs, etc). One of the points that was put forth was that these toolkits are not free for commercial use. I would like to know if GWT team has plans to expand the widget range and include widgets like DateField, DatePicker, Closable TabPanel, ComboBox? Also is there a roadmap for the future GWT versions. We are in the final stages of completing our web application using GWT. We are planning to go to production around Apr next year and are keen to know the plans for GWT. 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-Toolkit@googlegroups.com To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Strange problem with gwt, tomcat and memcached
Well, the problem was due to the tomcat classloader. Not sure why, but when
i packaged the memcached jar in the war file (It had been in tomcat's top
level lib directory) it worked! Not a GWT issue. ;-)
-Jeremiah
On Mon, Nov 24, 2008 at 3:11 PM, Jeremiah Elliott [EMAIL PROTECTED]wrote:
Ok, still having issues with this... Has anyone here used memcached with
gwt? I am starting to thing the problem is because the Report object is both
IsSerializable and java.io.Serializable? Any kind of pointer would be
good. Thanks
-Jeremiah
On Sat, Nov 22, 2008 at 1:10 PM, Jeremiah Elliott [EMAIL PROTECTED]wrote:
ok, I am not even 100% sure this is a GWT issue. The more I mess with it
the more I am convinced that it is somehow gwt related. Anyway I am in the
process of adding memcache to the application I am working on. In hosted
mode it worked exactly as expected. Huge speed improvement, and the
memcached log shows my objects going in and out as expected. The problem is
that when i publish the application to tomcat the cache doesn't work. I can
still add items to the cache, but when i pull items out of the cache I get a
class not found exception.
Initially I thought that the problem may be because the object being
cached lives in the client package. (com.sagus.client.Report) I createdd a
shared package as discribed here
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/51a8a9bb3f141ab4/c43fcc7dad3f7fde?lnk=gstq=foo.bar.shared#c43fcc7dad3f7fde
however this didnt' solve the problem. I could still set and get the
Report object in Hosted Mode but in production on tomcat I got the same
message. Here is the stacktrace:
java.lang.ClassNotFoundException: com.sagus.Shared.Report
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
..
Well, clearly it can find com.sagus.Shared.Report because is putting it
into memcache just fine. In a last act of desperation, i exported the
contents of src into a jar file using eclipse export feature, and dumped
that into Tomcat's lib directory. Now I am getting a ClassCastException:
2008-11-22 12:33:57,425 : ERROR :
com.sagus.server.DataCache.getWidget(DataCache.java:27) : get widget 18:
java.lang.ClassCastException: com.sagus.Shared.Report cannot be cast to
com.sagus.Shared.Report
at com.sagus.server.DataCache.getWidget(DataCache.java:25)
at
com.sagus.server.SagusDashImpl.getReportById(SagusDashImpl.java:244)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:527)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)
..
This is the class I am using to do the memcache sets and gets:
package com.sagus.server;
import java.io.IOException;
import java.net.InetSocketAddress;
import net.spy.memcached.MemcachedClient;
import org.apache.log4j.Logger;
import com.sagus.Shared.Report;
public class DataCache {
private static final Loggerlogger=
SagusDashImpl.getLogger();
private static StringWIDGET_PREFIX= PROD_WIDGET_;
private static MemcachedClientc= null;
public DataCache() {
try {
c = new MemcachedClient(new InetSocketAddress(localhost,
11211));
} catch (IOException ioe) {
logger.error(init DataCache , ioe);
}
}
public Report getWidget(int id) {
Report r = null;
try {
r = (Report) c.get(WIDGET_PREFIX + id);
} catch (Exception e) {
logger.error(get widget + id + : , e);
}
return r;
}
public void cacheWidget(Report report) {
try {
c.set(WIDGET_PREFIX + report.getWidgetId(), 36, report);
} catch (Exception e) {
logger.error(cacheWidget , e);
}
}
Here is the object being cached, its just a pojo:
package com.sagus.Shared;
import java.util.ArrayList;
import java.util.Date;
import com.google.gwt.user.client.rpc.IsSerializable;
public class Report implements IsSerializable, java.io.Serializable {
}
On one
Re: Strange problem with gwt, tomcat and memcached
Ok, still having issues with this... Has anyone here used memcached with
gwt? I am starting to thing the problem is because the Report object is both
IsSerializable and java.io.Serializable? Any kind of pointer would be
good. Thanks
-Jeremiah
On Sat, Nov 22, 2008 at 1:10 PM, Jeremiah Elliott [EMAIL PROTECTED]wrote:
ok, I am not even 100% sure this is a GWT issue. The more I mess with it
the more I am convinced that it is somehow gwt related. Anyway I am in the
process of adding memcache to the application I am working on. In hosted
mode it worked exactly as expected. Huge speed improvement, and the
memcached log shows my objects going in and out as expected. The problem is
that when i publish the application to tomcat the cache doesn't work. I can
still add items to the cache, but when i pull items out of the cache I get a
class not found exception.
Initially I thought that the problem may be because the object being cached
lives in the client package. (com.sagus.client.Report) I createdd a shared
package as discribed here
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/51a8a9bb3f141ab4/c43fcc7dad3f7fde?lnk=gstq=foo.bar.shared#c43fcc7dad3f7fde
however this didnt' solve the problem. I could still set and get the Report
object in Hosted Mode but in production on tomcat I got the same message.
Here is the stacktrace:
java.lang.ClassNotFoundException: com.sagus.Shared.Report
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
..
Well, clearly it can find com.sagus.Shared.Report because is putting it
into memcache just fine. In a last act of desperation, i exported the
contents of src into a jar file using eclipse export feature, and dumped
that into Tomcat's lib directory. Now I am getting a ClassCastException:
2008-11-22 12:33:57,425 : ERROR :
com.sagus.server.DataCache.getWidget(DataCache.java:27) : get widget 18:
java.lang.ClassCastException: com.sagus.Shared.Report cannot be cast to
com.sagus.Shared.Report
at com.sagus.server.DataCache.getWidget(DataCache.java:25)
at com.sagus.server.SagusDashImpl.getReportById(SagusDashImpl.java:244)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:527)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)
..
This is the class I am using to do the memcache sets and gets:
package com.sagus.server;
import java.io.IOException;
import java.net.InetSocketAddress;
import net.spy.memcached.MemcachedClient;
import org.apache.log4j.Logger;
import com.sagus.Shared.Report;
public class DataCache {
private static final Loggerlogger=
SagusDashImpl.getLogger();
private static StringWIDGET_PREFIX= PROD_WIDGET_;
private static MemcachedClientc= null;
public DataCache() {
try {
c = new MemcachedClient(new InetSocketAddress(localhost,
11211));
} catch (IOException ioe) {
logger.error(init DataCache , ioe);
}
}
public Report getWidget(int id) {
Report r = null;
try {
r = (Report) c.get(WIDGET_PREFIX + id);
} catch (Exception e) {
logger.error(get widget + id + : , e);
}
return r;
}
public void cacheWidget(Report report) {
try {
c.set(WIDGET_PREFIX + report.getWidgetId(), 36, report);
} catch (Exception e) {
logger.error(cacheWidget , e);
}
}
Here is the object being cached, its just a pojo:
package com.sagus.Shared;
import java.util.ArrayList;
import java.util.Date;
import com.google.gwt.user.client.rpc.IsSerializable;
public class Report implements IsSerializable, java.io.Serializable {
}
On one hand I wonder if its because it is implementing two different
serializable interfaces, but when i build this same object from the database
it works just fine.
At this point I am totally out of ideas. Any pointers would be helpful.
-Jeremiah
Re: Animations
something like this? http://code.google.com/p/gwt-voices/ On Sun, Nov 23, 2008 at 1:39 PM, Adligo [EMAIL PROTECTED] wrote: Hi, I did some basic animation at adligo.com, basically just a absolute panel with Timers that move the labels for the A and dligo and the panel for the tabs. The timers are set to run like the frames of a movie. I haven't checked out the GWT Animation kit, but I'm sure it's great It would be nice if someone wrote a sound API for gwt (or wrapper for the flash sound plugin), then people could write full blown video games in GWT! . Cheers, Scott On Nov 22, 5:12 am, tapan [EMAIL PROTECTED] wrote: How can i create excellent animations with GWT. please help urgent. --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Strange problem with gwt, tomcat and memcached
ok, I am not even 100% sure this is a GWT issue. The more I mess with it the
more I am convinced that it is somehow gwt related. Anyway I am in the
process of adding memcache to the application I am working on. In hosted
mode it worked exactly as expected. Huge speed improvement, and the
memcached log shows my objects going in and out as expected. The problem is
that when i publish the application to tomcat the cache doesn't work. I can
still add items to the cache, but when i pull items out of the cache I get a
class not found exception.
Initially I thought that the problem may be because the object being cached
lives in the client package. (com.sagus.client.Report) I createdd a shared
package as discribed here
http://groups.google.com/group/Google-Web-Toolkit/browse_thread/thread/51a8a9bb3f141ab4/c43fcc7dad3f7fde?lnk=gstq=foo.bar.shared#c43fcc7dad3f7fde
however this didnt' solve the problem. I could still set and get the Report
object in Hosted Mode but in production on tomcat I got the same message.
Here is the stacktrace:
java.lang.ClassNotFoundException: com.sagus.Shared.Report
at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:247)
..
Well, clearly it can find com.sagus.Shared.Report because is putting it into
memcache just fine. In a last act of desperation, i exported the contents of
src into a jar file using eclipse export feature, and dumped that into
Tomcat's lib directory. Now I am getting a ClassCastException:
2008-11-22 12:33:57,425 : ERROR :
com.sagus.server.DataCache.getWidget(DataCache.java:27) : get widget 18:
java.lang.ClassCastException: com.sagus.Shared.Report cannot be cast to
com.sagus.Shared.Report
at com.sagus.server.DataCache.getWidget(DataCache.java:25)
at com.sagus.server.SagusDashImpl.getReportById(SagusDashImpl.java:244)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at
com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:527)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:164)
at
com.google.gwt.user.server.rpc.RemoteServiceServlet.doPost(RemoteServiceServlet.java:86)
..
This is the class I am using to do the memcache sets and gets:
package com.sagus.server;
import java.io.IOException;
import java.net.InetSocketAddress;
import net.spy.memcached.MemcachedClient;
import org.apache.log4j.Logger;
import com.sagus.Shared.Report;
public class DataCache {
private static final Loggerlogger=
SagusDashImpl.getLogger();
private static StringWIDGET_PREFIX= PROD_WIDGET_;
private static MemcachedClientc= null;
public DataCache() {
try {
c = new MemcachedClient(new InetSocketAddress(localhost,
11211));
} catch (IOException ioe) {
logger.error(init DataCache , ioe);
}
}
public Report getWidget(int id) {
Report r = null;
try {
r = (Report) c.get(WIDGET_PREFIX + id);
} catch (Exception e) {
logger.error(get widget + id + : , e);
}
return r;
}
public void cacheWidget(Report report) {
try {
c.set(WIDGET_PREFIX + report.getWidgetId(), 36, report);
} catch (Exception e) {
logger.error(cacheWidget , e);
}
}
Here is the object being cached, its just a pojo:
package com.sagus.Shared;
import java.util.ArrayList;
import java.util.Date;
import com.google.gwt.user.client.rpc.IsSerializable;
public class Report implements IsSerializable, java.io.Serializable {
}
On one hand I wonder if its because it is implementing two different
serializable interfaces, but when i build this same object from the database
it works just fine.
At this point I am totally out of ideas. Any pointers would be helpful.
-Jeremiah
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
Google Web Toolkit group.
To post to this group, send email to Google-Web-Toolkit@googlegroups.com
To unsubscribe from this group, send email to [EMAIL PROTECTED]
For more options, visit this group at
http://groups.google.com/group/Google-Web-Toolkit?hl=en
-~--~~~~--~~--~--~---
Re: GWT + iText + Eclipse Problem
Did you edit the classpath in the App-compile script? or just the one in eclipse? On Mon, Oct 13, 2008 at 3:53 PM, Dean S. Jones [EMAIL PROTECTED] wrote: iText is a SERVER SIDE library for creating PDF's... you are trying to use it on the client side. On Oct 13, 2:25 pm, prof3ta [EMAIL PROTECTED] wrote: Hello everyone, I'm developing a web application using the gwt and I need to import some external libraries in the project. In the specific, I'm trying to import the iText libraries for dynamically generating pdf from java. I added the libraries as an external jar file in eclipse, but I obtain the following error when compiling my application: [EMAIL PROTECTED]./App-compile Removing units with errors [ERROR] Errors in 'file:/home/prof3ta/.eclipse/App/src/com/google/ gwt/sample/app/client/PDFGenerator.java' [ERROR] Line 20: No source code is available for type com.lowagie.text.Document; did you forget to inherit a required module? [ERROR] Line 20: No source code is available for type com.lowagie.text.PageSize; did you forget to inherit a required module? [ERROR] Line 22: No source code is available for type com.lowagie.text.pdf.PdfWriter; did you forget to inherit a required module? I have the same problem with all kind of external libraries. I tried adding the src code for the libraries, editing the App.gwt.xml file, etc. No luck. Could you please explain me in a clear way how should I add external libraries in a gwt eclipse project? Regards, Roberto --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Newbie - Trying to access Documentation
can you get here? http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5s=google-web-toolkit-doc-1-5t=google-web-toolkit-doc-1-5 On Wed, Sep 24, 2008 at 3:52 PM, Khader [EMAIL PROTECTED] wrote: Hi, I am trying to use GWT for the first time and was looking for some documentation on Google's side. I can get to this page, http://code.google.com/webtoolkit/overview.html but all the documentation sites (listed below) return me a blank page. http://code.google.com/docreader/#p=google-web-toolkit-doc-1-4 http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5 http://code.google.com/docreader/#p=google-web-toolkit-doc-1-5s=google-web-toolkit-doc-1-5t=GettingStarted Am I missing something? -Khader --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: GWT application and Google AppEngine
have you taken a look at this? http://code.google.com/p/python-gwt-rpc/ On Fri, Sep 19, 2008 at 5:34 AM, ajay jetti [EMAIL PROTECTED]wrote: Hi Sri Even im facing the same problem Please sombody post --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
Re: Real-time data receiving
You may find this helpful http://code.google.com/p/google-web-toolkit-incubator/wiki/ServerPushFAQ On Thu, Sep 11, 2008 at 10:30 PM, juan [EMAIL PROTECTED] wrote: Hi, I am currently building a GWT UI that can interface with our backend application. Our backend application push out text-based event messages through socket. What I need to do is to receive those messages, filter them, and then display some meaningful notice to the users using the Web UI. All these are done real-time. Could someone suggest the best way of doing that? How can I have a live Java program that listens on the socket and process the incoming messages? And how can that Java program interacts with Servlet that can then push the message out to the web front end users? Any suggestion will be greatly appreciated. Juan --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups Google Web Toolkit group. To post to this group, send email to Google-Web-Toolkit@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/Google-Web-Toolkit?hl=en -~--~~~~--~~--~--~---
