pool::PersistencySvc::DatabaseHandler Class Reference

DatabaseHandler is a class taking care of the micro-connections and the micro transactions for a given database. More...

#include <DatabaseHandler.h>

Collaboration diagram for pool::PersistencySvc::DatabaseHandler:

Public Member Functions
	DatabaseHandler (IStorageSvc &storageSvc, Session *session, long technology, const std::string &fid, const std::string &pfn, long accessmode)
	Constructor. Connects to the database.
	~DatabaseHandler ()
	Destructor. Disconnects from the database.
bool	commitTransaction ()
	Commits the transaction.
bool	commitAndHoldTransaction ()
	Commits and holds the transaction.
bool	disconnectTransaction ()
	Disconnects the transaction.
std::vector< std::string >	containers ()
	Gives the list of containers.
IContainer *	container (const std::string &containerName)
	Returns a container handle.
const std::string &	pfn () const
	Returns the physical file name.
const std::string &	fid () const
	Returns the file identifier.
long	technology () const
	Returns the technology identifier.
long	accessMode () const
	Returns the access mode.
Token *	writeObject (const std::string &containerName, long minorTechnology, const void *object, const RootType &type)
	Writes an object and returns a token.
void *	readObject (const Token &token, void *object=0)
	Reads an object given a token.
bool	attribute (const std::string &attributeName, void *data, const std::type_info &typeInfo, const std::string &option)
	Returns an attribute.
bool	setAttribute (const std::string &attributeName, const void *data, const std::type_info &typeInfo, const std::string &option)
	Sets an attrtibute.

Private Attributes
IStorageSvc &	m_storageSvc
	IStorageSvc reference.
Session *	m_session
	Pointer to the session for this database.
FileDescriptor	m_fileDescriptor
	File descriptor for this database.
long	m_technology
	Technology identifier.
long	m_accessMode
	Current access mode.

Detailed Description

DatabaseHandler is a class taking care of the micro-connections and the micro transactions for a given database.

It also gives access to the underlying containers.

Definition at line 33 of file DatabaseHandler.h.

Constructor & Destructor Documentation

DatabaseHandler()

pool::PersistencySvc::DatabaseHandler::DatabaseHandler	(	IStorageSvc &	storageSvc,
		Session *	session,
		long	technology,
		const std::string &	fid,
		const std::string &	pfn,
		long	accessmode )

Constructor. Connects to the database.

~DatabaseHandler()

pool::PersistencySvc::DatabaseHandler::~DatabaseHandler

(

)

Destructor. Disconnects from the database.

Member Function Documentation

accessMode()

long pool::PersistencySvc::DatabaseHandler::accessMode

(

)

const

Returns the access mode.

attribute()

bool pool::PersistencySvc::DatabaseHandler::attribute	(	const std::string &	attributeName,
		void *	data,
		const std::type_info &	typeInfo,
		const std::string &	option )

Returns an attribute.

commitAndHoldTransaction()

bool pool::PersistencySvc::DatabaseHandler::commitAndHoldTransaction

(

)

Commits and holds the transaction.

commitTransaction()

bool pool::PersistencySvc::DatabaseHandler::commitTransaction

(

)

Commits the transaction.

container()

IContainer * pool::PersistencySvc::DatabaseHandler::container

(

const std::string &

containerName

)

Returns a container handle.

containers()

std::vector< std::string > pool::PersistencySvc::DatabaseHandler::containers

(

)

Gives the list of containers.

disconnectTransaction()

bool pool::PersistencySvc::DatabaseHandler::disconnectTransaction

(

)

Disconnects the transaction.

fid()

const std::string & pool::PersistencySvc::DatabaseHandler::fid

(

)

const

Returns the file identifier.

pfn()

const std::string & pool::PersistencySvc::DatabaseHandler::pfn

(

)

const

Returns the physical file name.

readObject()

void * pool::PersistencySvc::DatabaseHandler::readObject	(	const Token &	token,
		void *	object = 0 )

Reads an object given a token.

setAttribute()

bool pool::PersistencySvc::DatabaseHandler::setAttribute	(	const std::string &	attributeName,
		const void *	data,
		const std::type_info &	typeInfo,
		const std::string &	option )

Sets an attrtibute.

technology()

long pool::PersistencySvc::DatabaseHandler::technology

(

)

const

Returns the technology identifier.

writeObject()

Token * pool::PersistencySvc::DatabaseHandler::writeObject	(	const std::string &	containerName,
		long	minorTechnology,
		const void *	object,
		const RootType &	type )

Writes an object and returns a token.

Member Data Documentation

m_accessMode

long pool::PersistencySvc::DatabaseHandler::m_accessMode

private

Current access mode.

Definition at line 104 of file DatabaseHandler.h.

m_fileDescriptor

FileDescriptor pool::PersistencySvc::DatabaseHandler::m_fileDescriptor

private

File descriptor for this database.

Definition at line 100 of file DatabaseHandler.h.

m_session

Session* pool::PersistencySvc::DatabaseHandler::m_session

private

Pointer to the session for this database.

Definition at line 98 of file DatabaseHandler.h.

m_storageSvc

IStorageSvc& pool::PersistencySvc::DatabaseHandler::m_storageSvc

private

IStorageSvc reference.

Definition at line 96 of file DatabaseHandler.h.

m_technology

long pool::PersistencySvc::DatabaseHandler::m_technology

private

Technology identifier.

Definition at line 102 of file DatabaseHandler.h.

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

• DatabaseHandler.h