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// -*- C++ -*-
// $Id$
// ============================================================================
//
// = LIBRARY
// orbsvcs
//
// = FILENAME
// LoadBalancing_Strategy.h
//
// = AUTHOR
// Ossama Othman <ossama@uci.edu>
//
// ============================================================================
#ifndef LOAD_BALANCING_STRATEGY_H
#define LOAD_BALANCING_STRATEGY_H
#include "orbsvcs/LoadBalancingS.h"
// @@ Ossama: the general comments on filenames, class names,
// TAO_XXX_Export an other things like that apply.
class ReplicaProxy_Impl;
// The abstract load balancing strategy class.
class Load_Balancing_Strategy
{
// = TITLE
// Load balancing strategy abstract base class.
// = DESCRIPTION
// This abstract base class defines the interface load balancing
// strategies should implement.
public:
virtual ~Load_Balancing_Strategy (void);
// Destructor
// @@ The name of the method should be more meaningful, what about:
// select_replica(), select_unloaded_replica() or something like
// that?
virtual CORBA::Object_ptr replica (CORBA::Environment &ACE_TRY_ENV)
ACE_THROW_SPEC ((CORBA::SystemException)) = 0;
// Return the object reference to the Replica to which requests should
// be redirected.
virtual int insert (ReplicaProxy_Impl *) = 0;
// Insert ReplicaProxy servant into the set of replica proxies upon
// which the load balancing algorithm is performed.
virtual int remove (ReplicaProxy_Impl *) = 0;
// Remove ReplicaProxy servant from the set of replica proxies.
virtual void load_changed (ReplicaProxy_Impl *impl,
CORBA::Environment &ACE_TRY_ENV);
// The load on one proxy has changed.
// @@ Ossama: see my comments on LoadBalancing_i about changing the
// signature of this method.
};
#if !defined (__ACE_INLINE__)
#include "LoadBalancing_Strategy.i"
#endif /* __ACE_INLINE__ */
#endif /* LOAD_BALANCING_STRATEGY_H */
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