valueobject.java

来自「Java Pattern Oriented Framework (Jt) 是为了」· Java 代码 · 共 81 行

package Jt.ejb.examples;

import Jt.*;
import Jt.ejb.*;

import java.util.*;
import Jt.examples.*;

// This class demonstrates the Jt implementation of 
// the J2EE value object design pattern. A remote instance 
// of an object is created. A single request is used to return 
// its value object

public class ValueObject  {



  public static void main(String[] args) {

    JtFactory factory = new JtFactory ();  // Jt Factory
    JtBusinessDelegate delegate;
    Member valueObject;
    JtMessage msg;
    JtProxy proxy;
    
    // Create an instance of JtBusinessDelegate (Jt implementation of
    // the J2EE business delegate pattern)

    delegate = (JtBusinessDelegate) factory.createObject (JtBusinessDelegate.JtCLASS_NAME, 
     "businessDelegate");

    msg = new JtMessage (JtEJBAdapter.JtCREATE_PROXY);
    msg.setMsgContent("Jt.examples.Member");
    //msg.setMsgData("helloWorld");

    proxy = (JtProxy) factory.sendMessage (delegate, msg);
    // Create a remote instance of the Member class. 

    //delegate.createObject ("Jt.examples.Member", "member");

    // Set the attributes of the remote object

    factory.setValue (proxy, "email", "[e-mail]");
    factory.setValue (proxy, "tstamp", new Date ());
    factory.setValue (proxy, "status", "1");
    factory.setValue (proxy, "firstname", "John");
    factory.setValue (proxy, "lastname", "Doe");

    // This single request returns the Value Object

    valueObject = (Member) factory.sendMessage (proxy, new JtMessage (JtObject.JtVALUE_OBJECT));
    factory.sendMessage (valueObject, new JtMessage (JtObject.JtPRINT));
    //valueObject = (Member) delegate.sendMessage ("member", new JtMessage (JtObject.JtVALUE_OBJECT));
    //factory.sendMessage (valueObject, new JtMessage (JtObject.JtPRINT));
    
    // Print the attribute values using the local instance of the Value Object
    // This is much faster and efficient.
    
    System.out.println ("Email =" + valueObject.getEmail());  
    System.out.println ("Tstamp =" + valueObject.getTstamp());
    System.out.println ("Status =" + valueObject.getStatus());   
    System.out.println ("First Name =" + valueObject.getFirstname());     
    System.out.println ("Last Name =" + valueObject.getLastname());     

    

    
    // Remove the remote object instance

    factory.removeObject (proxy);
    
    factory.removeObject(delegate);

        
  }

}