org.ow2.carol.cmi.lb.policy
Class RoundRobinPolicy<T extends org.ow2.carol.cmi.lb.LoadBalanceable>

java.lang.Object
  org.ow2.carol.cmi.lb.policy.AbsLBPolicy<T>
      org.ow2.carol.cmi.lb.policy.RoundRobinPolicy<T>

Type Parameters:

T - The type of object that was load-balanced

All Implemented Interfaces:

org.ow2.carol.cmi.lb.policy.ILBPolicy<T>

@ThreadSafe
public final class RoundRobinPolicy<T extends org.ow2.carol.cmi.lb.LoadBalanceable>
extends AbsLBPolicy<T>

The default load-balancing policy (Round Robin) that always chooses the next available load-balanceable.

Author:

The new CMI team

Constructor Summary

RoundRobinPolicy()
Build the Round Robin policy.

Method Summary

T	choose(java.util.List<T> loadBalanceables) Chooses the next load-balanceable among the list of load-balanceables.
java.lang.String	toString()

Methods inherited from class org.ow2.carol.cmi.lb.policy.AbsLBPolicy

getLBStrategy, onInvokeException, onLookupException, onReturn, setClusterViewManager, setLBStrategy

Methods inherited from class java.lang.Object

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

Constructor Detail

RoundRobinPolicy

public RoundRobinPolicy()

Build the Round Robin policy. Give to the pointer an initial value.

Method Detail

choose

public T choose(java.util.List<T> loadBalanceables)
                                                      throws org.ow2.carol.cmi.lb.NoLoadBalanceableException

Chooses the next load-balanceable among the list of load-balanceables.

Specified by:

choose in interface org.ow2.carol.cmi.lb.policy.ILBPolicy<T extends org.ow2.carol.cmi.lb.LoadBalanceable>

Specified by:

choose in class AbsLBPolicy<T extends org.ow2.carol.cmi.lb.LoadBalanceable>

Parameters:

loadBalanceables - the list of load-balanceables

Returns:

the chosen load-balanceable

Throws:

org.ow2.carol.cmi.lb.NoLoadBalanceableException - if no server available

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object