org.jboss.ha.framework.interfaces: public class: RandomRobin

org.jboss.ha.framework.interfaces
public class: RandomRobin [javadoc | source]

java.lang.Object
   org.jboss.ha.framework.interfaces.RandomRobin

All Implemented Interfaces:
LoadBalancePolicy

LoadBalancingPolicy implementation that always fully randomly select its target (without basing its decision on any historic).

Also see:

org.jboss.ha.framework.interfaces.LoadBalancePolicy

author: < - a href="mailto:sacha.labourey@cogito-info.ch">Sacha Labourey.

version: $ - Revision: 56192 $

Field Summary
public static final Random	localRandomizer	This needs to be a class variable or else you end up with multiple Random numbers with the same seed when many clients lookup a proxy.

Method from org.jboss.ha.framework.interfaces.RandomRobin Summary:
chooseTarget, chooseTarget, init

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from org.jboss.ha.framework.interfaces.RandomRobin Detail:
public Object chooseTarget(FamilyClusterInfo clusterFamily) { return chooseTarget(clusterFamily, null); }
public Object chooseTarget(FamilyClusterInfo clusterFamily, Invocation routingDecision) { List targets = clusterFamily.getTargets (); int max = targets.size(); if (max == 0) return null; int cursor = localRandomizer.nextInt (max); return targets.get(cursor); }
public void init(HARMIClient father) { // Static -------------------------------------------------------- // Constructors -------------------------------------------------- // Public -------------------------------------------------------- // LoadBalancePolicy implementation ---------------------------------------------- // do not use the HARMIClient in this policy }

Method from org.jboss.ha.framework.interfaces.RandomRobin Detail:

 public Object chooseTarget(FamilyClusterInfo clusterFamily) {
      return chooseTarget(clusterFamily, null);
}

 public Object chooseTarget(FamilyClusterInfo clusterFamily,
    Invocation routingDecision) {
      List targets = clusterFamily.getTargets ();
      int max = targets.size();
      if (max == 0)
         return null;
      int cursor = localRandomizer.nextInt (max);
      return targets.get(cursor);
}

 public  void init(HARMIClient father) {
   // Static --------------------------------------------------------
   // Constructors --------------------------------------------------
    // Public --------------------------------------------------------
   // LoadBalancePolicy implementation ----------------------------------------------
      // do not use the HARMIClient in this policy
}