From d0afba319f95f0059d201c6b7cbfbc3322f2c0f6 Mon Sep 17 00:00:00 2001
From: jestin
Date: Tue, 1 Aug 2006 09:24:10 +0000
Subject: Adding a correct example of translator in XML documentation update
 cleanup of IvyClient for Ping Pong

---
 doc/ivy-java.sgml | 51 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

(limited to 'doc/ivy-java.sgml')

diff --git a/doc/ivy-java.sgml b/doc/ivy-java.sgml
index 0e4d233..a7791c5 100644
--- a/doc/ivy-java.sgml
+++ b/doc/ivy-java.sgml
@@ -837,7 +837,58 @@ unsubscription will take place.
   bus.sendMsg("MyRequest ID="+id+" QUER=2+2");
 </programlisting>
 </para>
+</sect2>
 
+<sect2><title>how to quit the application ?</title>
+<para>
+If your application decides to quit or leave the bus, the safest way is to
+invoque <function>Ivy.stop()</function>. This will send a clean goodby message
+to the other agents, close the sockets, end the threads, etc. However, you can
+en the JVM performing a <function>System.exit(int)</function> and let the
+other agents realize that you've gone.
+</para>
+<para>
+If some other agents wants you to quit the bus, it will send you a die
+message. The protocol will first run you
+<function>IvyApplicationListener.die()</function>, if any, then
+perform some socket/thread clean up, and disconnect you from the bus. As a
+good citizen on the Ivy bus, you should take the appropriate measures top stop
+your application within the <function>IvyApplicationListener.die()</function>
+method, for instance run <function>System.exit()</function> or make all you
+thread stop, disposing your toplevel Swing Frames. Here is an example of how to do it:
+<programlisting>
+import fr.dgac.ivy.* ;
+import javax.swing.*;
+
+public class EndApp extends IvyApplicationAdapter {
+
+  public static void main(String[] args) throws IvyException {
+    Ivy bus=new Ivy("EndApp","EndApp ready",null);
+    EndApp e = new EndApp(bus); // a frame is opened, and the Swing Thread is started
+    bus.addApplicationListener(e);
+    bus.start(Ivy.getDomain(null));  // Ivy threads are up and running
+    // the control flow won't stop until the end of all above threads
+  }
+
+  private Ivy bus;
+  JFrame f;
+
+  public EndApp(Ivy b) {
+    this.bus=b;
+    f=new JFrame("test");
+    f.getContentPane().add(new JLabel("some label"),java.awt.BorderLayout.CENTER);
+    f.pack();
+    f.setVisible(true);
+  }
+
+  public void die(IvyClient client, int id,String msgarg) {
+    System.out.println("received die msg from " + client.getApplicationName());
+    f.dispose(); // closes the only window, thus quitting the swing thread
+  } // end of die callback, the Ivy threads are stopped
+
+}
+</programlisting>
+</para>
 </sect2>
 
 </sect1>
-- 
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