glo::Manager::SchemaMapItem Class Reference

Objects of this class represent an open database. There is one object of this class for each open database. More...

#include <GloManager.h>

Public Member Functions
	SchemaMapItem (SchemaInterface *pSchema, RealIndexPool *pRealIndexPool, std::ofstream *pLockFile)
	~SchemaMapItem ()
unsigned int	Counter () const
void	decrementCounter ()
SchemaInterface *	getSchema () const
TableWriterInterface *	getTableWriterInterface () const
void	incrementCounter ()

Protected Member Functions
	SchemaMapItem ()

Private Member Functions
	SchemaMapItem (const SchemaMapItem &)
Manager::SchemaMapItem &	operator= (const SchemaMapItem &)

Private Attributes
std::ofstream *	m_pLockFile
SchemaInterface *	m_pSchema
TableWriterInterface *	m_pTableWriterInterface
unsigned int	m_uiCounter

Detailed Description

Objects of this class represent an open database. There is one object of this class for each open database.

Copyright

© 2010 Helmut Jakoby

Author

Helmut Jakoby

Constructor & Destructor Documentation

SchemaMapItem() [1/3]

glo::Manager::SchemaMapItem::SchemaMapItem ( )

protected

The standard constructor is not available.

SchemaMapItem() [2/3]

glo::Manager::SchemaMapItem::SchemaMapItem	(	SchemaInterface *	pSchema,
		RealIndexPool *	pRealIndexPool,
		std::ofstream *	pLockFile )

Constructor with parameter passing.

Parameters

[in]	pSchema	The schema interface knows how objects and data sets are related.
[in]	pRealIndexPool	There is a real index of all persistent objects for the opened database.
[in]	pLockFile	To open the database only once, a lock file with exclusive access is created and passed here. A second opening of the database should thus be prevented.

Attention

The passed schema interface and the passed lock file become the property of this object, they must not be removed from memory by the parent instance, this instance takes care of this.

~SchemaMapItem()

glo::Manager::SchemaMapItem::~SchemaMapItem

(

)

Destructor. Excludes the lock file from m_pLockFile and clears the memory.

SchemaMapItem() [3/3]

glo::Manager::SchemaMapItem::SchemaMapItem ( const SchemaMapItem & )

private

The copy constructor is not available.

Member Function Documentation

Counter()

unsigned int glo::Manager::SchemaMapItem::Counter

(

)

const

Returns the reference counter.

Returns

The reference counter m_uiCounter.

decrementCounter()

void glo::Manager::SchemaMapItem::decrementCounter

(

)

Decrements the reference counter.

getSchema()

SchemaInterface * glo::Manager::SchemaMapItem::getSchema

(

)

const

Returns the schema interface.

Returns

The Schema Interface.

Attention

The calling instance must not remove the returned object from memory. It only lives as long as this object.

getTableWriterInterface()

TableWriterInterface * glo::Manager::SchemaMapItem::getTableWriterInterface

(

)

const

Returns the table writer.

Returns

The table writer.

Attention

The calling instance must not remove the returned object from memory. It only lives as long as this object.

incrementCounter()

void glo::Manager::SchemaMapItem::incrementCounter

(

)

Increments the reference counter.

operator=()

Manager::SchemaMapItem & glo::Manager::SchemaMapItem::operator= ( const SchemaMapItem & )

private

The assignment operator is not available.

Member Data Documentation

m_pLockFile

std::ofstream* glo::Manager::SchemaMapItem::m_pLockFile

private

A lock file with exclusive access is created. This is to prevent the database from being opened a second time.

m_pSchema

SchemaInterface* glo::Manager::SchemaMapItem::m_pSchema

private

Das Schema.

m_pTableWriterInterface

TableWriterInterface* glo::Manager::SchemaMapItem::m_pTableWriterInterface

private

The table writer for the open database.

m_uiCounter

unsigned int glo::Manager::SchemaMapItem::m_uiCounter

private

A reference counter to prevent multiple opening of a database. Only when the database is closed for the last time is the database realy closed by the reference counter == 0.

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

• GloManager.h