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## org.jgroups.demos
Class CausalDemo

    java.lang.Object
      org.jgroups.demos.CausalDemo

All Implemented Interfaces:
  java.lang.Runnable

    public class CausalDemo

extends java.lang.Object
implements java.lang.Runnable

Simple causal demo where each member bcast a consecutive letter from the alphabet and picks the next member to transmit the next letter. Start a few instances of CausalDemo and pass a paramter "-start" to a CausalDemo that initiates transmission of a letter A. All participanting members should have correct alphabet. DISCARD layer has been added to simulate lost messages, thus forcing delaying of delivery of a certain alphabet letter until the causally prior one has been received. Remove CAUSAL from the stack and witness how FIFO alone doesn't provide this guarantee.

Author:
  Vladimir Blagojevic

Constructor Summary
`CausalDemo(boolean start)`

Method Summary
`java.lang.String` | `getNext(java.lang.String c)`
`void` | `listAlphabet()`
`static void` | `main(java.lang.String[] args)`
`void` | `run()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### CausalDemo

    public CausalDemo(boolean start)

Method Detail

### getNext

    public java.lang.String getNext(java.lang.String c)

### listAlphabet

    public void listAlphabet()

### run

    public void run()

  Specified by:
    `run` in interface `java.lang.Runnable`

### main

    public static void main(java.lang.String[] args)

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Copyright © 1998-2009 Bela Ban / Red Hat. All Rights Reserved.