Examples of FirstAvailable

org.jboss.ha.client.loadbalance.FirstAvailable
LoadBalancePolicy implementation that, once a target is chosen, always favors that same target; i.e. no further load balancing occurs. Useful in cases where "sticky session" behavior is desired. Initially the favored target is randomly selected, so different instances of this class will likely not all select the same target; thus load balancing does occur across different proxies. Favoring the same target does not mean that fail-over will not occur if the chosen target dies. In this case, fail-over will occur, and a new favored target will be randomly chosen and invocation will continously be invoked on this new target until its death.
Each proxy using this policy will choose its own preferred target: the target is not shared accross the proxy family. For shared behaviour please take a look at {@link FirstAvailableIdenticalAllProxies}.
@author Bill Burke. @author Sacha Labourey. @author brian.stansberry@jboss.com @version $Revision: 57642 $ @see org.jboss.ha.client.loadbalance.LoadBalancePolicy
org.jboss.ha.client.loadbalance.aop.FirstAvailable
LoadBalancePolicy implementation that, once a target is chosen, always favors that same target; i.e. no further load balancing occurs. Useful in cases where "sticky session" behavior is desired. Differs from the {@link org.jboss.ha.client.loadbalance.FirstAvailable superclass} in the waythat the {@link #chooseTarget(FamilyClusterInfo,Invocation)} method initially selects the target. Instead of always randomly selecting the target, the method will check the passed invocation's metadata for the {@link ClusterConstants#HA_TARGET} key in the {@link ClusterConstants#CLUSTERED_REMOTING} group. If an object is found there and it is a valid target associated with the given FamilyClusterInfo, that target will be used. Otherwise the target will be randomly chosen. This mechanism allows the proxy that contains this policy to specify the preferred target via invocation metadata.
Each proxy using this policy will choose its own preferred target: the target is not shared accross the proxy family. For shared behaviour please take a look at {@link FirstAvailableIdenticalAllProxies}.
@author Brian Stansberry @version $Revision: 57642 $
org.jboss.ha.framework.interfaces.FirstAvailable
LoadBalancingPolicy implementation that always favor the first available target i.e. no load balancing occurs. Nevertheless, the first target is randomly selected. This does not mean that fail-over will not occur if the first member in the list dies. In this case, fail-over will occur, and a new target will become the first member and invocation will continously be invoked on the same new target until its death. Each proxy using this policy will elect its own prefered target: the target is not shared accross the proxy family (for this behaviour please take a look at FirstAvailableIdenticalAllProxies) @author Bill Burke. @author Sacha Labourey. @version $Revision: 81001 $ @see org.jboss.ha.framework.interfaces.LoadBalancePolicy
Revisions:

2002/08/24: Sacha Labourey
1. Use the target repository
2. First choice is randomly selected to distribute the initial load
3. When the list of targets change, we try to keep using the same previously elected target node if it still exists. Previously, we were working with the position id of the target node, thus if the list order changed, we were switching to another node while our prefered node was still up
org.jboss.jca.core.workmanager.selector.FirstAvailable

Examples of org.jboss.ha.client.loadbalance.FirstAvailable

      super(name);
   }
   
   protected LoadBalancePolicy getLoadBalancePolicy()
   {
      return new FirstAvailable();
   }

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Examples of org.jboss.ha.client.loadbalance.FirstAvailable

      hatarget = new HATarget(partition, proxyFamilyName, locator, HATarget.ENABLE_INVOCATIONS);
      ClusteringTargetsRepository.initTarget(proxyFamilyName, hatarget.getReplicants());
      ((SessionContainer) getContainer()).getClusterFamilies().put(proxyFamilyName, hatarget);
      if (clustered.loadBalancePolicy() == null || clustered.loadBalancePolicy().equals(LoadBalancePolicy.class))
      {
         lbPolicy = new FirstAvailable();
      }
      else
      {
         lbPolicy = clustered.loadBalancePolicy().newInstance();
      }

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Examples of org.jboss.ha.client.loadbalance.FirstAvailable

      super(name);
   }


   protected FirstAvailable getLoadBalancePolicy()
   {
      return new FirstAvailable();
   }

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Examples of org.jboss.ha.client.loadbalance.FirstAvailable

      ClusteringTargetsRepository.initTarget(proxyFamilyName, hatarget.getReplicants());
      container.getClusterFamilies().put(proxyFamilyName, hatarget);
      
      if (clustered.loadBalancePolicy() == null || clustered.loadBalancePolicy().equals(ClusteredDefaults.LOAD_BALANCE_POLICY_DEFAULT))
      {
         lbPolicy = new FirstAvailable();
      }
      else
      {
         String policyClass = clustered.loadBalancePolicy();
         try

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Examples of org.jboss.ha.client.loadbalance.FirstAvailable

/* 103 */     this.hatarget = new HATarget(partition, this.proxyFamilyName, this.locator, 2);
/* 104 */     ClusteringTargetsRepository.initTarget(this.proxyFamilyName, this.hatarget.getReplicants());
/* 105 */     ((SessionContainer)getContainer()).getClusterFamilies().put(this.proxyFamilyName, this.hatarget);
/* 106 */     if ((this.clustered.loadBalancePolicy() == null) || (this.clustered.loadBalancePolicy().equals(LoadBalancePolicy.class)))
/*     */     {
/* 108 */       this.lbPolicy = new FirstAvailable();
/*     */     }
/*     */     else
/*     */     {
/* 112 */       this.lbPolicy = ((LoadBalancePolicy)this.clustered.loadBalancePolicy().newInstance());
/*     */     }

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Examples of org.jboss.ha.client.loadbalance.FirstAvailable

      ClusteringTargetsRepository.initTarget(proxyFamilyName, hatarget.getReplicants());
      container.getClusterFamilies().put(proxyFamilyName, hatarget);
      
      if (clustered.loadBalancePolicy() == null || clustered.loadBalancePolicy().equals(ClusteredDefaults.LOAD_BALANCE_POLICY_DEFAULT))
      {
         lbPolicy = new FirstAvailable();
      }
      else
      {
         String policyClass = clustered.loadBalancePolicy();
         try

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Examples of org.jboss.ha.client.loadbalance.aop.FirstAvailable

      ClusteringTargetsRepository.initTarget(proxyFamilyName, hatarget.getReplicants());
      container.getClusterFamilies().put(proxyFamilyName, hatarget);
      
      if (clustered.loadBalancePolicy() == null || clustered.loadBalancePolicy().equals(ClusteredDefaults.LOAD_BALANCE_POLICY_DEFAULT))
      {
         lbPolicy = new FirstAvailable();
      }
      else
      {
         String policyClass = clustered.loadBalancePolicy();
         try

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Examples of org.jboss.ha.client.loadbalance.aop.FirstAvailable

      ClusteringTargetsRepository.initTarget(proxyFamilyName, hatarget.getReplicants());
      container.getClusterFamilies().put(proxyFamilyName, hatarget);
      
      if (clustered.loadBalancePolicy() == null || clustered.loadBalancePolicy().equals(ClusteredDefaults.LOAD_BALANCE_POLICY_DEFAULT))
      {
         lbPolicy = new FirstAvailable();
      }
      else
      {
         String policyClass = clustered.loadBalancePolicy();
         try

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Examples of org.jboss.ha.client.loadbalance.aop.FirstAvailable

      super(name);
   }
   
   protected LoadBalancePolicy getLoadBalancePolicy()
   {
      return new FirstAvailable();
   }

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Examples of org.jboss.ha.client.loadbalance.aop.FirstAvailable

      super(name);
   }
   
   protected FirstAvailable getLoadBalancePolicy()
   {
      return new FirstAvailable();
   }

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