org.jboss.ha.framework.interfaces
Class RoundRobin

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

All Implemented Interfaces:

Serializable, LoadBalancePolicy

public class RoundRobin
extends Object
implements LoadBalancePolicy

LoadBalancingPolicy implementation that always favor the next available target load balancing always occurs.

Version:

$Revision: 1.6.6.1 $

Author:

Sacha Labourey., Bill Burke.

See Also:

LoadBalancePolicy, Serialized Form

Constructor Summary

RoundRobin()

Method Summary

Object	chooseTarget(FamilyClusterInfo clusterFamily) Called when the stub wishes to know on which node the next invocation must be performed.
Object	chooseTarget(FamilyClusterInfo clusterFamily, org.jboss.invocation.Invocation routingDecision) Called when the stub wishes to know on which node the next invocation must be performed.
void	init(HARMIClient father) Initialize the policy with a reference to its parent stub.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RoundRobin

public RoundRobin()

Method Detail

init

public void init(HARMIClient father)

Description copied from interface: LoadBalancePolicy

Initialize the policy with a reference to its parent stub. the load-balancing policy implementation can use HARMIClient data to take its decision

Specified by:

init in interface LoadBalancePolicy

Parameters:

father - The stub that owns the policy

chooseTarget

public Object chooseTarget(FamilyClusterInfo clusterFamily)

Description copied from interface: LoadBalancePolicy

Called when the stub wishes to know on which node the next invocation must be performed.

Specified by:

chooseTarget in interface LoadBalancePolicy

Parameters:

clusterFamily - A list of potential target nodes

Returns:

The selected target for the next invocation

chooseTarget

public Object chooseTarget(FamilyClusterInfo clusterFamily,
                           org.jboss.invocation.Invocation routingDecision)

Description copied from interface: LoadBalancePolicy

Called when the stub wishes to know on which node the next invocation must be performed.

Specified by:

chooseTarget in interface LoadBalancePolicy

Parameters:

clusterFamily - A list of potential target nodes

routingDecision - The actual invocation object if the policy wants to have some kind of invocation-based routing strategy

Returns:

The selected target for the next invocation