org.jboss.ha.framework.interfaces
public class: FirstAvailableIdenticalAllProxies [javadoc |
source]
java.lang.Object
org.jboss.ha.framework.interfaces.FirstAvailableIdenticalAllProxies
All Implemented Interfaces:
LoadBalancePolicy
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 *not* elect its own
prefered target: the target *is* shared with all proxies that belong to the same family
(for a different behaviour please take a look at FirstAvailable)
| Method from org.jboss.ha.framework.interfaces.FirstAvailableIdenticalAllProxies Detail: |
|---|
 public Object chooseTarget(FamilyClusterInfo clusterFamily) {
return chooseTarget(clusterFamily, null);
}
|
public Object chooseTarget(FamilyClusterInfo clusterFamily,
Invocation routingDecision) {
Object target = clusterFamily.getObject ();
List targets = clusterFamily.getTargets ();
if (targets.size () == 0)
return null;
if (target != null && targets.contains (target) )
{
return target;
}
else
{
int cursor = RandomRobin.localRandomizer.nextInt (targets.size());
target = targets.get(cursor);
clusterFamily.setObject (target);
return target;
}
} |
public void init(HARMIClient father) {
// Attributes ----------------------------------------------------
// Static --------------------------------------------------------
// Constructors --------------------------------------------------
// Public --------------------------------------------------------
// do not use the HARMIClient in this policy
} |
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