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// -*- C++ -*-
//=============================================================================
/**
* @file target_specification.h
*
* A class that encapsulates the target identification details.
*
* @author Balachandran Natarajan <bala@cs.wustl.edu>
*/
//=============================================================================
#ifndef TAO_TARGET_SPECIFICATION_H
#define TAO_TARGET_SPECIFICATION_H
#include /**/ "ace/pre.h"
#include /**/ "tao/TAO_Export.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
#include "tao/Basic_Types.h"
#if !defined (ACE_LACKS_PRAGMA_ONCE)
# pragma once
#endif /* ACE_LACKS_PRAGMA_ONCE */
TAO_BEGIN_VERSIONED_NAMESPACE_DECL
namespace IOP
{
struct IOR;
struct TaggedProfile;
}
namespace TAO
{
class ObjectKey;
}
/**
* @class TAO_Target_Specification
*
* @brief A class to encapsulate all the ways of specifying targets.
*/
class TAO_Export TAO_Target_Specification
{
public:
/// Ctor
TAO_Target_Specification ();
enum TAO_Target_Address
{
// Note that this could be extended for other protocols
Key_Addr = 0,
Profile_Addr,
Reference_Addr
};
/// Set the target specification by giving the object key.
/// @note Please do not pass in a identifiers that is allocated on
/// stack. These methods does not make a copy but holds the pointer
/// passed in.
void target_specifier (const TAO::ObjectKey &key);
/// Set the target specification by passing in an IOP::TaggedProfile.
void target_specifier (IOP::TaggedProfile &profile);
/**
* Specify the target by passing in the IOP::IOR with a profile
* index. Please see the header file IOPC.h on why a profile index
* is required.
*/
void target_specifier (IOP::IOR &ior, CORBA::ULong prof_index);
/**
* Returns the object key after a check of the stored specifier. If
* the stored specifier is not of the right type then this would
* return a NULL
*/
const TAO::ObjectKey* object_key ();
/**
* Returns the IOP::TaggedProfile after a check of the stored specifier. If
* the stored specifier is not of the right type then this would
* return a NULL
*/
const IOP::TaggedProfile *profile ();
/**
* Returns a pointer to IOP::IOR through the parameters and the
* index of the selected profile as a return parameter after a check
* of the stored specifier. If the stored specifier is not of the
* right type then this would return a NULL.
*/
CORBA::ULong iop_ior (IOP::IOR *&ior);
/// Access the TArget_Address specifier
TAO_Target_Address specifier ();
private:
/// The union of all the possibilities
union
{
TAO::ObjectKey *object_key_;
IOP::TaggedProfile *profile_;
IOP::IOR *ior_;
} u_;
/// The enum identifier
TAO_Target_Address specifier_;
/// The profile index
CORBA::ULong profile_index_;
};
TAO_END_VERSIONED_NAMESPACE_DECL
#if defined (__ACE_INLINE__)
#include "tao/target_specification.inl"
#endif /* defined INLINE */
#include /**/ "ace/post.h"
#endif /*TAO_TARGET_SPECIFICATION_H*/
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