Hi Sumit,
(This is my servlet for implementation of service)
package com.calender.server;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import com.calender.client.CalenderService;
import com.google.gdata.client.*;
import com.google.gdata.client.calendar.*;
import com.google.gdata.data.*;
import com.google.gdata.data.extensions.*;
import com.google.gdata.util.*;
import com.google.gwt.user.server.rpc.RemoteServiceServlet;
public class CalendarServlet extends RemoteServiceServlet implements
CalenderService
{
/**
*
*/
private static final long serialVersionUID = 8743313712323328729L;
public boolean getData()
{
URL feedUrl=null;
try {
feedUrl =
new
URL("http://www.google.com/calendar/feeds/mygmailid/private/
full");
} catch (MalformedURLException e) {
e.printStackTrace();
}
CalendarService myService = new
CalendarService("exampleCo-
exampleApp-1");
try {
myService.setUserCredentials("mygmailid", "mypassword");
}
catch (AuthenticationException e) {
e.printStackTrace();
}
new
EventFeed().declareExtensions(myService.getExtensionProfile());
try {
Feed myFeed = (Feed)myService.getFeed(feedUrl,
Feed.class);
} catch (IOException e) {
e.printStackTrace();
} catch (ServiceException e) {
e.printStackTrace();
}
EventEntry myEntry = new EventEntry();
myEntry.setTitle(new PlainTextConstruct("Tennis with Darcy"));
myEntry.setContent(new PlainTextConstruct("Meet for a quick
lesson."));
Person author = new Person("Vijay Poojary", null, "mygmailid");
myEntry.getAuthors().add(author);
DateTime startTime =
DateTime.parseDateTime("2007-11-22T15:00:00-08:00");
DateTime endTime =
DateTime.parseDateTime("2007-11-22T17:00:00-08:00");
When eventTimes = new When();
eventTimes.setStartTime(startTime);
eventTimes.setEndTime(endTime);
myEntry.addTime(eventTimes);
try {
EventEntry insertedEntry =
(EventEntry)myService.insert(postUrl,
myEntry);
} catch (IOException e) {
e.printStackTrace();
} catch (ServiceException e) {
e.printStackTrace();
}
return true;
}
}
and below is my clientside Entrypoint,
package com.calender.client;
import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.AsyncCallback;
import com.google.gwt.user.client.rpc.ServiceDefTarget;
/**
* Entry point classes define <code>onModuleLoad()</code>.
*/
public class GWTcalender implements EntryPoint {
/**
* This is the entry point method.
*/
public void onModuleLoad() {
final CalenderServiceAsync NumsService = (CalenderServiceAsync)
GWT.create(CalenderService.class);
ServiceDefTarget endpoint = (ServiceDefTarget) NumsService;
endpoint.setServiceEntryPoint(GWT.getModuleBaseURL()+"Nums");
AsyncCallback callback = new AsyncCallback(){
public void onSuccess(Object result) {
if(((Boolean)result).booleanValue())
{
Window.alert("Yes,");
}
else
{
Window.alert("No,");
}
}
public void onFailure(Throwable caught) {
Window.alert("error");
}
};
NumsService.getData(callback);
}
}
I want to know why while using GData classes like CalenderService or
other I am getting Exception as NoClassDefFound.
Thanks,
Vijay
On Nov 22, 2:53 am, Sumit Chandel <[EMAIL PROTECTED]> wrote:
> Hi Vijay,
>
> The reason why you're getting this error message in hosted mode is
> because there is an exception bubbling up from your
> CalendarService.getData() call that cannot be serialized across GWT
> RPC. What you'll want to do is either catch the exception at the
> service level in a custom defined exception that can be serialized on
> the client-side through GWT RPC, or catch the exception and take some
> corrective action (such as passing a sentinel String or int value back
> up to the client to indicate a system failure). Even better, you might
> want to dig into the reason why the CalendarService.getData() call is
> throwing an exception in the first place, but in any case you must
> catch this exception so that it doesn't bubble up to the client, where
> it can't be serialized.
>
> You can check out more specifics about the constraints on Serializable
> types in GWT RPC at the link below:
>
> http://code.google.com/webtoolkit/documentation/com.google.gwt.doc.De...
>
> If you need to further troubleshoot the problem of getting exception
> and other object types to the client-side across GWT RPC, you're more
> likely to get answers on the Google Web Toolkit forums (linked below).
> If you want to further look into the reason why your
> Calendar.getData() call is throwing an exception, I suggest you post
> up more information for follow up here.
>
> Google Web Toolkit forum:
>
> http://groups.google.com/group/Google-Web-Toolkit
>
> Hope that helps,
> -Sumit Chandel
>
> On Nov 21, 4:33 am, Vijay <[EMAIL PROTECTED]> wrote:
>
>
>
> > HI
>
> > I have added GData jar files and mail.jar, activation.jar in the
> > library, but still I am getting error message as below noClassDefFound
> > while using gdata, like googleservice.
>
> > Please tell me what to do.
>
> > [WARN] StandardContext[]Exception while dispatching incoming RPC call
> > com.google.gwt.user.server.rpc.UnexpectedException: Service method
> > 'public abstract boolean
> > com.calender.client.CalenderService.getData()' threw an unexpected
> > exception: java.lang.NoClassDefFoundError: com/google/gdata/client/
> > calendar/CalendarService- Hide quoted text -
>
> - Show quoted text -
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