about arrays

[mrgibson]

I created a custom Message containing :

 private String[] players_names;

 public String[] getPlayersNames() {
        return players_names;
    }

When I run it, I receive this warning from java console:
Setter correspondent not found for getPlayersNames, ignoring.

Does JGN support some kind of arrays transmission or I have to serialize everything?

Yanick Bourbeau
MRG Technologies
http://imperium.mrgtech.ca

[liree]

You need another method:

public void setPlayersNames(String[] names) {
   players_names = names;
}

Each property that shall be transported with JGN must have
a "getter"-Method and a "setter"-Method with equal names (except for get.. and set..).
(The name of the field which actually stores the value may differ)

[mrgibson]

This is my message:


package game_server;
import com.captiveimagination.jgn.message.*;

public class AuthReplyMessage extends Message {

    private int player_id;
    private int version;
    private String[] players_names;
    private float[] players_x;
    private float[] players_y;
   
   
   
    public void setPlayerID(int id) {
        player_id = id;
    }
   
    public int getPlayerID() {
        return player_id;
    }

    public void setPlayersNames(String[] names) {
       
        players_names = names;
    }

    public void setPlayersX(float[] x) {
       
        players_x = x;
    }
   
    public void setPlayersY(float[] y) {
       
        players_y = y;
    }
    public String[] getPlayersNames() {
        return players_names;
    }

    public float[] getPlayersX() {
        return players_x;
    }

    public float[] getPlayersY() {
        return players_y;
    }

    public void setVersion(int ver) {
        version = ver;
    }
   
    public int getVersion() {
        return version;
    }

   
}

Now its compile but when I try to sendMessage() this message, I got this:
Object: game_server.ServerNetwork$1@df6ccd, MethodName: messageReceived, Var: game_server.AuthMessage@601bb1, callAll: false
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at com.captiveimagination.jgn.MessageQueue.callMethod(MessageQueue.java:182)
        at com.captiveimagination.jgn.MessageQueue.sendMessage(MessageQueue.java:147)
        at com.captiveimagination.jgn.MessageQueue.update(MessageQueue.java:100)
        at com.captiveimagination.jgn.MessageServer.updateEvents(MessageServer.java:89)
        at com.captiveimagination.jgn.MessageServer.update(MessageServer.java:73)
        at com.captiveimagination.jgn.MessageServer$1.run(MessageServer.java:46)
Caused by: java.lang.NullPointerException
        at com.captiveimagination.jgn.JGN.get(JGN.java:806)
        at com.captiveimagination.jgn.JGN.convertMessage(JGN.java:547)
        at com.captiveimagination.jgn.UDPMessageServer.resendMessage(UDPMessageServer.java:127)
        at com.captiveimagination.jgn.UDPMessageServer.sendMessage(UDPMessageServer.java:118)
        at game_server.ServerNetwork$1.messageReceived(ServerNetwork.java:105)


Someone have an idea?

[mrgibson]

A extra thing, do Messages can contain Vector or HashMap ?

[darkfrog]

It looks like it's having a problem with a null value in your object.  Do you have JDT in your classpath?  A lot of the problems associated with null values being passed were addressed better in JDT and not with reflection.  If you still get this problem when you have JDT in your classpath then post how you are instantiating the message and I'll try to reproduce it over here.

darkfrog

[mrgibson]

I use redirection right now, I will try with JDT

[darkfrog]

I hope you mean reflection. :-p

darkfrog