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/* -*- C++ -*- */
// ========================================================================
// $Id$
//
// = LIBRARY
// orbsvcs
//
// = FILENAME
// Dynamic_Property.h
//
// = AUTHOR
// Seth Widoff <sbw1@cs.wustl.edu>
//
// ========================================================================
#ifndef TAO_DYNAMIC_PROPERTY_H
#define TAO_DYNAMIC_PROPERTY_H
#include <map>
#include <string>
#include "orbsvcs/CosTradingS.h"
class TAO_DP_Evaluation_Handler
{
public:
virtual CORBA::Any* evalDP(const CORBA::Any& extra_info,
CORBA::TypeCode_ptr returned_type,
CORBA::Environment& _env)
TAO_THROW_SPEC ((CosTradingDynamic::DPEvalFailure)) = 0;
};
class TAO_Dynamic_Property :
public POA_CosTradingDynamic::DynamicPropEval
// = TITLE
// This class exhibits one strategy for handling many dynamic
// properties from a single process. Dynamic_Property, when
// registered with the orb, will receive and dispatch to registered
// handlers, incoming evalDP requests. This pushes the
// demultiplexing of dynamic property evaluation up from the orb
// level and into the application.
{
public:
TAO_Dynamic_Property(const char* name = "Dynamic Property");
~TAO_Dynamic_Property (void);
CosTradingDynamic::DynamicProp*
register_handler(const char* name,
CORBA::TypeCode_ptr returned_type,
const CORBA::Any& extra_info,
TAO_DP_Evaluation_Handler* handler);
// Registers a handler with the Dynamic_Property
// demultiplexer. Returns a constructed dynamic property struct
// upon success, which the caller must then deallocate when
// finished, or 0 on failure (i.e., a property with the same name
// is already registered).
TAO_DP_Evaluation_Handler* remove_handler(const char* name);
virtual CORBA::Any* evalDP(const char* name,
CORBA::TypeCode_ptr returned_type,
const CORBA::Any& extra_info,
CORBA::Environment& _env)
TAO_THROW_SPEC ((CORBA::SystemException,
CosTradingDynamic::DPEvalFailure));
// Point of demultiplexing.
private:
typedef map
<
string,
TAO_DP_Evaluation_Handler*,
less<string>
> HANDLER_MAP;
HANDLER_MAP handlers_;
};
#if defined (ACE_TEMPLATES_REQUIRE_SOURCE)
#include "Dynamic_Property.cpp"
#endif /* ACE_TEMPLATES_REQUIRE_SOURCE */
#endif /* TAO_DYNAMIC_PROPERTY_H*/
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