Help: GWT/RF.... client to server communication !!

Hi all,

please help me out,

In my project using GWT/RequestFactory , Hibernate with SQL server database.

 

now my problem is Display the Records or Data in client side , please tell me How to get the data from server. 

below client side code.

// here fire method giving compile time error says  The method fire(Receiver<Void>) in the type RequestContext is not applicable for the arguments (new Receiver<NameDataProxy>(){})

1)DemoRF.java

Send a request client to server 

//button clickhandler

nameDataRequest.query().fire(new Receiver<NameDataProxy>() {

@Override

public void onSuccess(final NameDataProxy response) {

System.out.println("success...");

if (response == null) {

//some process

}

@ProxyFor(Contact.class)

2)NameDataProxy having all setter and getter methods

//.............

3) request interface methods 

@Service(Contact.class)

public interface NameDataRequest extends RequestContext {

 // Request<Long> count();

  

  Request<List<NameDataProxy>> findNameData();

  

  Request<List<NameDataProxy>> query();

.......................

.......................................  

}

 below server side code:

3)Contact.java

//here one method

.......

 public static List<Contact> query() {

   //EntityManager em =null;// entityManager();

   try {

    SessionFactory sf = new Configuration().configure().buildSessionFactory();

Session session = sf.openSession();

@SuppressWarnings("unused")

Transaction trans =session.beginTransaction();

Query q2 = session.createQuery("select cus from Contact cus");

@SuppressWarnings("unchecked")

List<Contact> conl = (List<Contact>)q2.list();

conl.size();

          System.out.println( conl.size());

     return conl;

   } finally {

    //conl.close();

   }

 }

........................

.........................

please tell me in my code where is  the mistake or worng.

if you don't mind, send simple web application using GWT/RF sample code for me,

advance thanks.

 

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