esf_worker.h

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/* -*- C++ -*- */
/**
 *  @file   ESF_Worker.h
 *
 *  ESF_Worker.h,v 1.10 2003/12/02 07:56:13 jwillemsen Exp
 *
 *  @author Carlos O'Ryan ([e-mail])
 *
 *  http://doc.ece.uci.edu/~coryan/EC/index.html
 */

#ifndef TAO_ESF_WORKER_H
#define TAO_ESF_WORKER_H

#include "ace/CORBA_macros.h"
#include "ace/os_include/os_stddef.h"

#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */

class Object;

namespace CORBA
{
  class Environment;
}
/// Define the interface for the Worker objects
/**
 * The Event Service Framework uses Worker classes to iterate over
 * collections of proxies.
 * The following class defines the worker interface, basically users of
 * the framework implement a worker object and pass it to one
 * collection.  The collection invokes the worker for each element the
 * colection contains.
 */
template<class Object>
class TAO_ESF_Worker
{
public:
  virtual ~TAO_ESF_Worker (void);

  /// Used by the collection to inform the worker
  /// the number of proxies in the collection.
  virtual void set_size(size_t size);

  /// Callback interface.
  virtual void work (Object *object
                     ACE_ENV_ARG_DECL) = 0;
};

#if defined (__ACE_INLINE__)
#include "ESF_Worker.i"
#endif /* __ACE_INLINE__ */

#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
#include "ESF_Worker.cpp"
#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */

#if defined (ACE_TEMPLATES_REQUIRE_PRAGMA)
#pragma implementation ("ESF_Worker.cpp")
#endif /* ACE_TEMPLATES_REQUIRE_PRAGMA */

#endif /* TAO_ESF_WORKER_H */