TAO_Service_Offer_Iterator< LOCK_TYPE > Class Template Reference

TAO_Service_Offer_Iterator iterates over the set of exported offers for a given type. Handily, it takes care of all the necessary locking, acquiring them in the constructor, and releasing them in the destructor. More...

#include <Offer_Database.h>

Collaboration diagram for TAO_Service_Offer_Iterator< LOCK_TYPE >:

[legend]List of all members.

Public Types
typedef TAO_Offer_Database< LOCK_TYPE >	Offer_Database
Public Member Functions
	TAO_Service_Offer_Iterator (const char *type, TAO_Offer_Database< LOCK_TYPE > &offer_database)
	~TAO_Service_Offer_Iterator (void)
	Release all the locks acquired.
int	has_more_offers (void)
	Returns 1 if there are more offers, 0 otherwise.
CosTrading::OfferId	get_id (void)
	Get the id for the current offer.
CosTrading::Offer *	get_offer (void)
	Returns the next offer in the series.
void	next_offer (void)
	Advances the iterator 1.
Private Attributes
TAO_Offer_Database< LOCK_TYPE > &	stm_
	Lock the top_level map.
LOCK_TYPE *	lock_
	Lock for the internal map.
TAO_Offer_Map::iterator *	offer_iter_
	Iterator over the actual offer map.
const char *	type_
	The name of the type. Used for constructing offer ids.

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Detailed Description

template<class LOCK_TYPE>
class TAO_Service_Offer_Iterator< LOCK_TYPE >

TAO_Service_Offer_Iterator iterates over the set of exported offers for a given type. Handily, it takes care of all the necessary locking, acquiring them in the constructor, and releasing them in the destructor.

Definition at line 153 of file Offer_Database.h.

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Member Typedef Documentation

template<class LOCK_TYPE>

typedef TAO_Offer_Database<LOCK_TYPE> TAO_Service_Offer_Iterator< LOCK_TYPE >::Offer_Database

Definition at line 157 of file Offer_Database.h.

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Constructor & Destructor Documentation

template<class LOCK_TYPE>

TAO_Service_Offer_Iterator< LOCK_TYPE >::TAO_Service_Offer_Iterator	(	const char *	type,
		TAO_Offer_Database< LOCK_TYPE > &	offer_database
	)

Definition at line 305 of file Offer_Database.cpp.

References ACE_NEW, TAO_Service_Offer_Iterator< LOCK_TYPE >::lock_, and TAO_Service_Offer_Iterator< LOCK_TYPE >::offer_iter_.

  : stm_ (offer_database),
    lock_ (0),
    offer_iter_ (0),
    type_ (type)
{
  CORBA::String_var service_type (type);

  if (this->stm_.db_lock_.acquire_read () == -1)
    return;

  typename TAO_Offer_Database<LOCK_TYPE>::Offer_Map_Entry* entry = 0;
  if (this->stm_.offer_db_.find (service_type, entry) == -1)
    return;
  else
    {
      this->lock_ = &entry->lock_;
      if (this->lock_->acquire_read () == -1)
        return;

      ACE_NEW (offer_iter_,
               TAO_Offer_Map::iterator (*entry->offer_map_));
    }
}

template<class LOCK_TYPE>

TAO_Service_Offer_Iterator< LOCK_TYPE >::~TAO_Service_Offer_Iterator

(

void

)

Release all the locks acquired.

Definition at line 332 of file Offer_Database.cpp.

References TAO_Service_Offer_Iterator< LOCK_TYPE >::lock_, TAO_Service_Offer_Iterator< LOCK_TYPE >::offer_iter_, and TAO_Service_Offer_Iterator< LOCK_TYPE >::stm_.

{
  this->stm_.db_lock_.release ();

  if (this->lock_ != 0)
    {
      this->lock_->release ();
      delete this->offer_iter_;
    }
}

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Member Function Documentation

template<class LOCK_TYPE>

CosTrading::OfferId TAO_Service_Offer_Iterator< LOCK_TYPE >::get_id

(

void

)

Get the id for the current offer.

Definition at line 344 of file Offer_Database.cpp.

References TAO_Offer_Database< LOCK_TYPE >::generate_offer_id().

{
  return (this->offer_iter_ != 0)
    ? TAO_Offer_Database<LOCK_TYPE>::generate_offer_id (this->type_, (**this->offer_iter_).ext_id_)
    : 0;
}

template<class LOCK_TYPE>

CosTrading::Offer * TAO_Service_Offer_Iterator< LOCK_TYPE >::get_offer

(

void

)

Returns the next offer in the series.

Definition at line 359 of file Offer_Database.cpp.

References TAO_Service_Offer_Iterator< LOCK_TYPE >::offer_iter_.

{
  return (this->offer_iter_ != 0) ? (**this->offer_iter_).int_id_ : 0;
}

template<class LOCK_TYPE>

int TAO_Service_Offer_Iterator< LOCK_TYPE >::has_more_offers

(

void

)

Returns 1 if there are more offers, 0 otherwise.

Definition at line 352 of file Offer_Database.cpp.

References TAO_Service_Offer_Iterator< LOCK_TYPE >::offer_iter_.

{
  return (this->offer_iter_ != 0) ? ! this->offer_iter_->done () : 0;
}

template<class LOCK_TYPE>

void TAO_Service_Offer_Iterator< LOCK_TYPE >::next_offer

(

void

)

Advances the iterator 1.

Definition at line 365 of file Offer_Database.cpp.

References TAO_Service_Offer_Iterator< LOCK_TYPE >::offer_iter_.

{
  if (this->offer_iter_ != 0)
    this->offer_iter_->advance ();
}

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Member Data Documentation

template<class LOCK_TYPE>

LOCK_TYPE* TAO_Service_Offer_Iterator< LOCK_TYPE >::lock_ [private]

Lock for the internal map.

Definition at line 184 of file Offer_Database.h.

Referenced by TAO_Service_Offer_Iterator< LOCK_TYPE >::TAO_Service_Offer_Iterator(), and TAO_Service_Offer_Iterator< LOCK_TYPE >::~TAO_Service_Offer_Iterator().

template<class LOCK_TYPE>

TAO_Offer_Map::iterator* TAO_Service_Offer_Iterator< LOCK_TYPE >::offer_iter_ [private]

Iterator over the actual offer map.

Definition at line 187 of file Offer_Database.h.

Referenced by TAO_Service_Offer_Iterator< LOCK_TYPE >::get_offer(), TAO_Service_Offer_Iterator< LOCK_TYPE >::has_more_offers(), TAO_Service_Offer_Iterator< LOCK_TYPE >::next_offer(), TAO_Service_Offer_Iterator< LOCK_TYPE >::TAO_Service_Offer_Iterator(), and TAO_Service_Offer_Iterator< LOCK_TYPE >::~TAO_Service_Offer_Iterator().

template<class LOCK_TYPE>

TAO_Offer_Database<LOCK_TYPE>& TAO_Service_Offer_Iterator< LOCK_TYPE >::stm_ [private]

Lock the top_level map.

Definition at line 181 of file Offer_Database.h.

Referenced by TAO_Service_Offer_Iterator< LOCK_TYPE >::~TAO_Service_Offer_Iterator().

template<class LOCK_TYPE>

const char* TAO_Service_Offer_Iterator< LOCK_TYPE >::type_ [private]

The name of the type. Used for constructing offer ids.

Definition at line 190 of file Offer_Database.h.

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The documentation for this class was generated from the following files:

• Offer_Database.h
• Offer_Database.cpp

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