glo::IndexPool::DeletedObjIdTuple Class Reference

Class to manage deleted objects in the IndexPool::SchemaIndex. More...

#include <GloIndexPool.h>

Public Member Functions
	DeletedObjIdTuple ()
	DeletedObjIdTuple (const DeletedObjIdTuple &rT)
	DeletedObjIdTuple (const ObjID &rObjID, int iDelCounter)
virtual	~DeletedObjIdTuple ()
IndexPool::DeletedObjIdTuple &	operator= (const DeletedObjIdTuple &rT)
std::string	toString () const
bool	operator== (const DeletedObjIdTuple &rT) const
bool	operator!= (const DeletedObjIdTuple &rT) const
bool	operator> (const DeletedObjIdTuple &rT) const
bool	operator>= (const DeletedObjIdTuple &rT) const
bool	operator< (const DeletedObjIdTuple &rT) const
bool	operator<= (const DeletedObjIdTuple &rT) const
bool	operator== (int iDelCounter) const
bool	operator!= (int iDelCounter) const
bool	operator> (int iDelCounter) const
bool	operator>= (int iDelCounter) const
bool	operator< (int iDelCounter) const
bool	operator<= (int iDelCounter) const

Public Attributes
int	m_iDelCounter
ObjID	m_ObjID

Detailed Description

Class to manage deleted objects in the IndexPool::SchemaIndex.

Deleted objects must not be saved again. The object IDs of deleted objects are stored here. This is to ensure that objects deleted by one client are not saved again by another client who still has the deleted object in memory. The object ID is not reusable, so the deleted object cannot be saved as a new one.

Copyright

© 2010 Helmut Jakoby

Author

Helmut Jakoby

Constructor & Destructor Documentation

DeletedObjIdTuple() [1/3]

glo::IndexPool::DeletedObjIdTuple::DeletedObjIdTuple

(

)

Standard constructor.

DeletedObjIdTuple() [2/3]

glo::IndexPool::DeletedObjIdTuple::DeletedObjIdTuple	(	const ObjID &	rObjID,
		int	iDelCounter )

Constructor with parameter passing.

Parameters

[in]	rObjID	The object ID of the object deleted in the database.
[in]	iDelCounter	The deletion counter.

DeletedObjIdTuple() [3/3]

glo::IndexPool::DeletedObjIdTuple::DeletedObjIdTuple

(

const DeletedObjIdTuple &

rT

)

Copy constructor.

Parameters

[in]

rT

The data is copied from this object.

~DeletedObjIdTuple()

virtual glo::IndexPool::DeletedObjIdTuple::~DeletedObjIdTuple ( )

virtual

Destructor.

Member Function Documentation

operator!=() [1/2]

bool glo::IndexPool::DeletedObjIdTuple::operator!=

(

const DeletedObjIdTuple &

rT

)

const

Comparison operator.

Parameters

[in]

rT

The object to be compared with this one.

operator!=() [2/2]

bool glo::IndexPool::DeletedObjIdTuple::operator!=

(

int

iDelCounter

)

const

Comparison operator.

Parameters

[in]

iDelCounter

Only the deletion counter is compared.

operator<() [1/2]

bool glo::IndexPool::DeletedObjIdTuple::operator<

(

const DeletedObjIdTuple &

rT

)

const

Comparison operator.

Parameters

[in]

rT

The object to be compared with this one.

operator<() [2/2]

bool glo::IndexPool::DeletedObjIdTuple::operator<

(

int

iDelCounter

)

const

Comparison operator.

Parameters

[in]

iDelCounter

Only the deletion counter is compared.

operator<=() [1/2]

bool glo::IndexPool::DeletedObjIdTuple::operator<=

(

const DeletedObjIdTuple &

rT

)

const

Comparison operator.

Parameters

[in]

rT

The object to be compared with this one.

operator<=() [2/2]

bool glo::IndexPool::DeletedObjIdTuple::operator<=

(

int

iDelCounter

)

const

Comparison operator.

Parameters

[in]

iDelCounter

Only the deletion counter is compared.

operator=()

IndexPool::DeletedObjIdTuple & glo::IndexPool::DeletedObjIdTuple::operator=

(

const DeletedObjIdTuple &

rT

)

Assignment operator.

Parameters

[in]

rT

The data is transferred from this object.

operator==() [1/2]

bool glo::IndexPool::DeletedObjIdTuple::operator==

(

const DeletedObjIdTuple &

rT

)

const

Comparison operator.

Parameters

[in]

rT

The object to be compared with this one.

operator==() [2/2]

bool glo::IndexPool::DeletedObjIdTuple::operator==

(

int

iDelCounter

)

const

Comparison operator.

Parameters

[in]

iDelCounter

Only the deletion counter is compared.

operator>() [1/2]

bool glo::IndexPool::DeletedObjIdTuple::operator>

(

const DeletedObjIdTuple &

rT

)

const

Comparison operator.

Parameters

[in]

rT

The object to be compared with this one.

operator>() [2/2]

bool glo::IndexPool::DeletedObjIdTuple::operator>

(

int

iDelCounter

)

const

Comparison operator.

Parameters

[in]

iDelCounter

Only the deletion counter is compared.

operator>=() [1/2]

bool glo::IndexPool::DeletedObjIdTuple::operator>=

(

const DeletedObjIdTuple &

rT

)

const

Comparison operator.

Parameters

[in]

rT

The object to be compared with this one.

operator>=() [2/2]

bool glo::IndexPool::DeletedObjIdTuple::operator>=

(

int

iDelCounter

)

const

Comparison operator.

Parameters

[in]

iDelCounter

Only the deletion counter is compared.

toString()

std::string glo::IndexPool::DeletedObjIdTuple::toString

(

)

const

Returns in the form 'Object ID|Deletion counter|' e.g. "7.0.2743|2|".

Returns

The object ID and the deletion counter in a string.

Member Data Documentation

m_iDelCounter

int glo::IndexPool::DeletedObjIdTuple::m_iDelCounter

To ensure that transactions are processed cleanly, a deletion counter is available for the TransactionsIndexPool.

This allows to count the number of times an object has been deleted from the database in different transactions.

A transaction that is aborted does not know about a possibly enclosing transaction, where the object might be deleted with a commit.

m_ObjID

ObjID glo::IndexPool::DeletedObjIdTuple::m_ObjID

The object ID of the object deleted in the database.

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

• GloIndexPool.h