HelloWorld


1   package Jt.ejb.examples;
2   
3   import Jt.*;
4   import java.io.*;
5   import Jt.ejb.*;
6   
7   
8   // This class demonstrates the use of  
9   // the J2EE Business Delegate design pattern
10  
11  public class HelloWorld extends JtObject {
12  
13  
14  
15    // Test program
16  
17    public static void main(String  [] args) {
18  
19      JtFactory factory = new JtFactory ();  // Jt Factory
20      String   reply;
21      JtBusinessDelegate main;
22  
23      
24      // Create an instance of JtBusinessDelegate (Jt implementation of
25      // the J2EE business delegate pattern)
26  
27      main = (JtBusinessDelegate) factory.createObject ("Jt.ejb.JtBusinessDelegate", 
28       "businessDelegate");
29  
30  
31      // Create a remote instance of the HelloWorld class. JtBusinessDelegate
32      // can be used to create remote instances of any Jt Framework class.
33      // HelloWorld is used as an example. 
34  
35  
36      main.createObject ("Jt.examples.HelloWorld", "helloWorld");
37  
38      // Set the greetingMessage attribute
39  
40      main.setValue ("helloWorld", "greetingMessage", "Hello World...");
41  
42      // Send JtHello to the remote helloWorld object 
43  
44      main.handleTrace ("main:sending a message (JtHello) to the helloWorld object ...");
45      reply = (String  ) main.sendMessage ("helloWorld", new JtMessage ("JtHello"));
46  
47      // Print the reply message (Greeting)
48      System.out.println (reply);    
49  
50      // Remove helloWorld
51  
52      main.removeObject ("helloWorld");
53  
54          
55    }
56  
57  }
58  
59  
60  
61

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