Hi, you can't call getMessage() from the servlet. You seems to have a weird understanding of client-server communication.
Any class you have showed us are client classes (browser). No idea how you call anything from servlet. You may use GWT-RPC for communication (and you should have a look on COMET if you want to make a chat app) Just follow the stockwatcher sample and you get the necessary information. http://code.google.com/intl/de-DE/webtoolkit/doc/latest/tutorial/clientserver.html Stefan Bachert http://gwtworld.de On 21 Sep., 05:07, Victor Machado <[email protected]> wrote: > Hello, im new in programming with GWT and im trying to make a Chat > application. > I have a class Receiver, responsible to get the messages from the > server and show them in a TextArea. > It's something like this: > > class ChatEntryPoint implements EntryPoint{ > > Receiver r; > final TextArea ta; > > public void onModuleLoad() { > > r = new Receiver(id){ > > @Override > public void getMessage(String msg) { > ta.setText(msg); > } > > }; > } > > } > > public class Receiver implements java.io.Serializable{ > > private static final long serialVersionUID = -2358499438887497539L; > private String id; > > public Receiver(){ > this.id = ""; > } > > public Receiver(String id){ > this.id = id; > } > > public void getMessage(String msg) { > } > > } > > Even assigning the java.io.Serializable, i get the serialization error > message, when i call the getMessage method from my Servlet. > What is wrong with my Receiver? > > Ps: Please, forgive my bad english. -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to [email protected]. 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.
