A type-safe set of references to persistent objects in the database (intended as an attribute for persistent objects).
Objects can be inserted only once. More...

#include <GloTOndemandSet.h>

Inheritance diagram for glo::TOndemandSet< T >:

[legend]

Public Member Functions
	TOndemandSet ()

	TOndemandSet (Base &rBase)

virtual	~TOndemandSet ()

virtual int	get (glo::ObjID &rObjID, T *&prRetVal, EnSeekMode eMode)

virtual int	get (std::shared_ptr< T > &rRetVal, const ObjID &rObjID)

virtual int	get (T *&prRetVal, const ObjID &rObjID)

virtual int	get (T *&prRetVal, EnSeekMode eMode)

virtual int	getTypeAsString (std::string &rsTypeName) override


virtual int	insert (T *NewObj)
	Inserts the passed persistent object into the set behind the current position.

virtual int	insert (std::shared_ptr< T > NewObj)
	Inserts the passed persistent object into the set behind the current position.


virtual int	remove (T *Object)
	Removes the passed persistent object from the set.

virtual int	remove (std::shared_ptr< T > Object)
	Removes the passed persistent object from the set.


virtual int	get (std::shared_ptr< T > &rRetVal, EnSeekMode eMode)
	Returns an object from the set in relation to eMode.

virtual int	get (TOndemand< T > &rRetVal, EnSeekMode eMode)
	Returns an object from the set in relation to eMode.


virtual int	get (glo::ObjID &rObjID, std::shared_ptr< T > &rRetVal, EnSeekMode eMode)
	Returns an object ID and if possible a object from the container of the database in relation to eMode.

virtual int	get (glo::ObjID &rObjID, TOndemand< T > &rRetVal, EnSeekMode eMode)
	Returns an object ID and if possible a object from the container of the database in relation to eMode.

Public Member Functions inherited from glo::OndemandSet
	OndemandSet ()

	OndemandSet (Base &rBase)

virtual	~OndemandSet ()

virtual void	clear ()

virtual Reference *	getOndemand (EnSeekMode eMode)

virtual int	getPersistent (BasePersistent *&prRetVal, const ObjID &rObjID)

virtual int	insertOndemand (const Reference &rNewOndemand)

virtual int	insertPers (BasePersistent *pNewObj)

virtual int	insertPers (std::shared_ptr< BasePersistent > spNewObj)

virtual int	removeOndemand (const Reference &rOndemand)

virtual int	setCurrentObject (const ObjID &rObjID)

virtual int	setPosition (std::size_t nPosition)

virtual std::size_t	size () const

virtual bool	inLot (const ObjID &object) const
	See description in superclass.

virtual bool	inLot (const BasePersistent &object) const
	See description in superclass.

virtual bool	inLot (const std::shared_ptr< BasePersistent > object) const
	See description in superclass.

virtual bool	inLot (const Reference &object) const
	See description in superclass.

Public Member Functions inherited from glo::OndemandLot
	OndemandLot ()

	OndemandLot (Base &rBase)

virtual	~OndemandLot ()

virtual Base *	getBase () const override

virtual int	getObjID (ObjID &rObjID, EnSeekMode eMode)

virtual int	getPers (BasePersistent *&prRetVal, EnSeekMode eMode)

virtual int	getPers (glo::ObjID &rObjID, BasePersistent *&prRetVal, EnSeekMode eMode)

virtual int	getPers (glo::ObjID &rObjID, std::shared_ptr< BasePersistent > &rRetVal, EnSeekMode eMode)

virtual int	getPers (std::shared_ptr< BasePersistent > &rRetVal, EnSeekMode eMode)

std::list< Reference * > &	List ()

virtual int	removePers (BasePersistent *pObject)

virtual int	setBase (Base *pBase) override

Public Member Functions inherited from glo::BaseLot
	BaseLot ()

virtual	~BaseLot ()

virtual int	lock (const LockSpecification &rLockSpecification)

virtual int	lock (EnLockMode eLockMode=LK_DELETEvWRITE, EnDeepMode eDeepMode=DM_SHALLOW)

virtual int	removePers (std::shared_ptr< BasePersistent > spObject)

virtual int	setWatch (const WatchSpecification &rWatchSpec)

virtual int	setWatch (TdWatchNotifyMode ulWatchMode, EnDeepMode eDeepMode, CallBack *pCallBack=0)

virtual int	unlock (const LockSpecification &rLockSpecification)

virtual int	unlock (EnLockMode eLockMode=LK_DELETEvWRITE, EnDeepMode eDeepMode=DM_SHALLOW)

virtual int	unsetWatch (const WatchSpecification &rWatchSpec)

virtual int	unsetWatch (TdWatchNotifyMode ulWatchMode, EnDeepMode eDeepMode, CallBack *pCallBack=0)

Public Member Functions inherited from glo::AbstractBaseLot
	AbstractBaseLot ()

virtual	~AbstractBaseLot ()

virtual int	getPersistent (std::shared_ptr< BasePersistent > &rRetVal, const ObjID &rObjID)

virtual int	setCurrentObject (const BasePersistent &rObject)

Public Member Functions inherited from glo::CallBack
	CallBack ()

virtual	~CallBack ()

virtual void	notify (NotifyNote &rNote)

CallBack &	operator= (const CallBack &rT)

bool	operator== (const CallBack &rT) const
	Comparison operator, all attributes are compared.

bool	operator!= (const CallBack &rT) const
	Comparison operator, all attributes are compared.

Private Member Functions
	TOndemandSet (const TOndemandSet &)

TOndemandSet< T > &	operator= (const TOndemandSet &)

Additional Inherited Members
Public Attributes inherited from glo::CallBack
std::string	m_strDebugInfo

Protected Member Functions inherited from glo::BaseLot
int	lockObjID (const ObjID &rObjID)

int	setWatchObjID (const ObjID &rObjID)

int	takeOverBase (const BasePersistent *pObj)

int	takeOverBase (const Reference *pRef)

int	unlockObjID (const ObjID &rObjID)

int	unsetWatchObjID (const ObjID &rObjID)

Protected Member Functions inherited from glo::CallBack
	CallBack (const CallBack &rT)

void	deinit ()

void	init ()

Protected Attributes inherited from glo::OndemandLot
std::list< Reference * >	m_odRefList

std::list< Reference * >::iterator	m_odRefListIterator

unsigned long	m_ulDatabaseID

Protected Attributes inherited from glo::BaseLot
unsigned long	m_ulClassID

Detailed Description

template<class T>
class glo::TOndemandSet< T >

A type-safe set of references to persistent objects in the database (intended as an attribute for persistent objects).
Objects can be inserted only once.

In contrast to a TPointerSet (where the referenced objects are automatically 'loaded'), the TOndemandSet is a set of references; the referenced objects are not loaded from the database with the referencing object, but can be 'reloaded' if required.

It is always useful if an object is to reference several 'large' objects that do not have to be available.

If objects in one object database are to reference multiple objects in another object database, this is only possible with glo::TOndemandList or glo::TOndemandSet.

Copyright: © 2010 Helmut Jakoby

Author: Helmut Jakoby

Constructor & Destructor Documentation

◆ TOndemandSet() [1/3]

template<class T >

glo::TOndemandSet< T >::TOndemandSet ( )

Standard constructor.

◆ TOndemandSet() [2/3]

template<class T >

glo::TOndemandSet< T >::TOndemandSet ( Base & rBase )

Constructor with parameter passing.

Parameters

[in] rBase The database is passed.

◆ ~TOndemandSet()

template<class T >

glo::TOndemandSet< T >::~TOndemandSet ( )

virtual

Destructor, for all objects in the object set the own lock and watch mode is cancelled and then the object set is emptied.

See also: clear()

◆ TOndemandSet() [3/3]

template<class T >

glo::TOndemandSet< T >::TOndemandSet ( const TOndemandSet< T > & )

private

The copy constructor is not available.

Member Function Documentation

◆ get() [1/8]

template<class T >

int glo::TOndemandSet< T >::get	(	glo::ObjID &	rObjID,
		std::shared_ptr< T > &	rRetVal,
		EnSeekMode	eMode )

virtual

Returns an object ID and if possible a object from the container of the database in relation to eMode.

This also makes it possible to iterate over objects that cannot be read (only the object ID is then returned).

Parameters

[in,out]	rObjID	The object ID.
[in,out]	rRetVal	If no error, the fetched object in a std::shared_ptr.
[in]	eMode	The seek mode.

Returns: A return < 0 indicates an error.
A return == glo::ERR_RANGE indicates the end of the AllSet and is therefore not a real error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

◆ get() [2/8]

template<class T >

int glo::TOndemandSet< T >::get	(	glo::ObjID &	rObjID,
		T *&	prRetVal,
		EnSeekMode	eMode )

virtual

Returns an object ID and if possible a object from the container of the database in relation to eMode. This also makes it possible to iterate over objects that cannot be read (only the object ID is then returned).

Parameters

[in,out]	rObjID	The object ID.
[in,out]	prRetVal	If no error, the fetched object.
[in]	eMode	The seek mode.

Returns: A return < 0 indicates an error.
A return == glo::ERR_RANGE indicates the end of the AllSet and is therefore not a real error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

Attention: If prRetVal is valid, this object must be removed from memory by the calling instance. It is recommended to use the method of the same name with a std::shared_ptr.

◆ get() [3/8]

template<class T >

int glo::TOndemandSet< T >::get	(	glo::ObjID &	rObjID,
		TOndemand< T > &	rRetVal,
		EnSeekMode	eMode )

virtual

Returns an object ID and if possible a object from the container of the database in relation to eMode.

This also makes it possible to iterate over objects that cannot be read (only the object ID is then returned).

Parameters

[in,out]	rObjID	The object ID.
[in,out]	rRetVal	If no error, the fetched object in a std::shared_ptr.
[in]	eMode	The seek mode.

Returns: A return < 0 indicates an error.
A return == glo::ERR_RANGE indicates the end of the AllSet and is therefore not a real error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

◆ get() [4/8]

template<class T >

int glo::TOndemandSet< T >::get	(	std::shared_ptr< T > &	rRetVal,
		const ObjID &	rObjID )

virtual

Returns an object with passed object ID from the container.

Parameters

[in,out]	rRetVal	If no error, the fetched object.
[in]	rObjID	The object ID.

Returns: A return < 0 indicates an error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

Attention: If rRetVal is valid, this object must be removed from memory by the calling instance using BasePersistent::forget().

◆ get() [5/8]

template<class T >

int glo::TOndemandSet< T >::get	(	std::shared_ptr< T > &	rRetVal,
		EnSeekMode	eMode )

virtual

Returns an object from the set in relation to eMode.

Parameters

[in,out]	rRetVal	If no error, the fetched object in a std::shared_ptr.
[in]	eMode	The seek mode.

Returns: A return < 0 indicates an error.
A return == glo::ERR_RANGE indicates the end of the AllSet and is therefore not a real error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

◆ get() [6/8]

template<class T >

int glo::TOndemandSet< T >::get	(	T *&	prRetVal,
		const ObjID &	rObjID )

virtual

Returns an object with passed object ID from the container.

Parameters

[in,out]	prRetVal	If no error, the fetched object.
[in]	rObjID	The object ID.

Returns: A return < 0 indicates an error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

Attention: If prRetVal is valid, this object must be removed from memory by the calling instance using BasePersistent::forget().

◆ get() [7/8]

template<class T >

int glo::TOndemandSet< T >::get	(	T *&	prRetVal,
		EnSeekMode	eMode )

virtual

Returns an object from the set in relation to eMode.

Parameters

[in,out]	prRetVal	If no error, the fetched object.
[in]	eMode	The seek mode.

Returns: A return < 0 indicates an error.
A return == glo::ERR_RANGE indicates the end of the AllSet and is therefore not a real error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

Attention: If prRetVal is valid, this object must be removed from memory by the calling instance. It is recommended to use the method of the same name with a std::shared_ptr.

◆ get() [8/8]

template<class T >

int glo::TOndemandSet< T >::get	(	TOndemand< T > &	rRetVal,
		EnSeekMode	eMode )

virtual

Returns an object from the set in relation to eMode.

Parameters

[in,out]	rRetVal	If no error, the fetched object in a std::shared_ptr.
[in]	eMode	The seek mode.

Returns: A return < 0 indicates an error.
A return == glo::ERR_RANGE indicates the end of the AllSet and is therefore not a real error.
If a referenced object does not exist in the database, the error glo::ERR_NO_INDEX is returned.

◆ getTypeAsString()

template<class T >

int glo::TOndemandSet< T >::getTypeAsString ( std::string & rsTypeName )

overridevirtual

Returns the type of the template set, i.e. the class name as string when connected to the database.

Parameters

[in,out] rsTypeName The type name.

Returns: If return value < 0, an error has occurred.

Reimplemented from glo::BaseLot.

◆ insert() [1/2]

template<class T >

int glo::TOndemandSet< T >::insert ( std::shared_ptr< T > NewObj )

virtual

Inserts the passed persistent object into the set behind the current position.

If the set is locked, the object to be inserted is locked with the lock mode of the set.

If the set is monitored, the object to be inserted is also monitored with the monitoring mode of the set.

Parameters

[in] NewObj The persistent object to be inserted.

Returns: A return value < 0 indicates an error.

Attention: The internal iterator m_odRefListIterator points to the inserted element if the insertion is successful.

◆ insert() [2/2]

template<class T >

int glo::TOndemandSet< T >::insert ( T * NewObj )

virtual

Inserts the passed persistent object into the set behind the current position.

If the set is locked, the object to be inserted is locked with the lock mode of the set.

If the set is monitored, the object to be inserted is also monitored with the monitoring mode of the set.

Parameters

[in] NewObj The persistent object to be inserted.

Returns: A return value < 0 indicates an error.

Attention: The internal iterator m_odRefListIterator points to the inserted element if the insertion is successful.

◆ operator=()

template<class T >

TOndemandSet< T > & glo::TOndemandSet< T >::operator= ( const TOndemandSet< T > & )

private

The assignment operator is not available.

◆ remove() [1/2]

template<class T >

int glo::TOndemandSet< T >::remove ( std::shared_ptr< T > Object )

virtual

Removes the passed persistent object from the set.

If the set is locked, the object to be removed is released with the lock mode of the set.

If the set is monitored, the monitoring of the object to be removed is ended with the monitoring mode of the set.

Parameters

[in] Object The persistent object to be removed.

Returns: A return value < 0 indicates an error.

Attention: The internal iterator m_odRefListIterator points to the element following the removed one if the deletion was successful. If there is no subsequent element, the internal iterator m_odRefListIterator points to the container end.

◆ remove() [2/2]

template<class T >

int glo::TOndemandSet< T >::remove ( T * Object )

virtual

Removes the passed persistent object from the set.

If the set is locked, the object to be removed is released with the lock mode of the set.

If the set is monitored, the monitoring of the object to be removed is ended with the monitoring mode of the set.

Parameters

[in] Object The persistent object to be removed.

Returns: A return value < 0 indicates an error.

Attention: The internal iterator m_odRefListIterator points to the element following the removed one if the deletion was successful. If there is no subsequent element, the internal iterator m_odRefListIterator points to the container end.

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

GloTOndemandSet.h

Public Member Functions

Private Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ TOndemandSet() [1/3]

◆ TOndemandSet() [2/3]

◆ ~TOndemandSet()

◆ TOndemandSet() [3/3]

Member Function Documentation

◆ get() [1/8]

◆ get() [2/8]

◆ get() [3/8]

◆ get() [4/8]

◆ get() [5/8]

◆ get() [6/8]

◆ get() [7/8]

◆ get() [8/8]

◆ getTypeAsString()

◆ insert() [1/2]

◆ insert() [2/2]

◆ operator=()

◆ remove() [1/2]

◆ remove() [2/2]