Making choice between socket and RMI

I never use RMI, but i am familiar to socket programming. i want to write an online game, I know that use RMI will easy than use socket, could anyone tell me what factors will affect the choice between using socket and RMI if don't consider which one i am familiar ?
thanks
jacky

I would consider the amount of traffic your online game is going to be generating. Obviously, if the traffic is the bottleneck, you will want to optimize it as much as possible.
I can see that if you are familiar with sockets and socket programming, where this is very appealing because after all, you can't get much faster than raw sockets. Also, the Java APIs around sockets are much easier than the equivalent BSD Socket C/C++ libraries.
Still, RMI has much more to offer.
o It is relatively easy to set up a connection
o exceptions will be thrown when problems occur
o serializing classes is so easy it's laughable
o If performance becomes an issue, you can (as the previous poster suggests) create your own custom socket factory which optimizes the used bandwidth. Options here include compression if you have the CPU cycles to spare.
o There are mechanisms in place for working RMI over firewalls
Many of the things that RMI offers, you might find yourself re-writing in your own socket-based API. Personally, I would choose RMI.

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Conflict between socket and RMI

Hi
I wrote a program in client-server using socket and it was fine. I also wrote a client-server program using RMI. Fine as well. But after I connected the client-server using socket (open socket, send-receive messages, close socket), then use RMI. I got java.rmi.NotBoundException.
Would anyone have a look and provide your feedback please? Thanks.
big J
*****************this is Server.java ***************************
package single;
import java.io.*;
import java.rmi.Naming;
import java.rmi.RemoteException;
import java.net.*;
import java.rmi.*;
public class Server
extends Thread {
public static final int SOCKETPORT = 5555;
private String serverName;
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System.out.println("*** socket opened ***");
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ServerSocket serverSocket = new ServerSocket(SOCKETPORT);
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System.out.println(bufferedReader.readLine());
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catch (RemoteException ex) {
catch (MalformedURLException ex) {
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public static void main(String args[]) throws Exception {
Server server = new Server();
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******************this is Client.java **************************
package single;
import java.io.*;
import java.net.*;
import java.rmi.Naming;
public class Client {
private String serverName;
private final static int SOCKETPORT = 5555;
public Client() throws IOException {
serverName = new String("localhost");
Socket socket = new Socket(serverName, SOCKETPORT);
OutputStream os = socket.getOutputStream();
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printWriter.println("from client");
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is.close();
os.close();
socket.close();
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System.setSecurityManager(new SecurityManager());
RMIInterface rMIInterfaceImpl = (RMIInterface) Naming.lookup(
"//" + serverName + ":9999/RMIInterface");
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***************** this is RMIInterface.java ***********************
package single;
import java.rmi.Remote;
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interface RMIInterface
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********************* this is RMIInterfaceImpl.java ***************
package single;
import java.rmi.RemoteException;
import java.rmi.server.UnicastRemoteObject;
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I think you have a timing problem between your client and server. As soon as your client and server programs have finished their socket communication, they will both do their "runServer"/"runClient" methods. If the client attempts to lookup the server before the server has registered itself via Naming.bind(), I would expect that's why you're getting a NotBoundException in the client.
You probably wouldn't use the design of your test client/server for something significant, but a quick and dirty way to make this work might be to have the client call Thread.sleep() for a few seconds before trying to do the lookup.

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Hello,
Can anyone please tell me in detail the difference between RPC and RMI? If possible can you pls give examples?
Thanks in advance.
KiranJyot

Thank you for the reply.
Yes, I did google about this. But, it was not clear to me. I did ATM application using both RPC and RMI. Even though, it worked fine and did not lose points in my assignments, unfortunately the concepts were not clear.
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Sir,
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Solved!
Go to Solution.

First thing to do is to make your phone open the web pages. I don't think the phone has low speeds.
First
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Copy the access point name you received from custome care to-
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Saved pages of Opera mini 4.x won't open with opera mini 7.x version.
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Hello All,
We are building a Bi Directional Interface for Business partners between a third Party ERP, XI and SAP CRM.
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