PoolDbCnvSvc Class Reference

#include <PoolDb/PoolDbCnvSvc.h>

Inheritance diagram for PoolDbCnvSvc:

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Collaboration diagram for PoolDbCnvSvc:

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List of all members.

Detailed Description

Description:.

PoolDbCnvSvc class implementation definition.

Author:: Markus Frank

Version:: 1.0

Definition at line 45 of file PoolDbCnvSvc.h.


Public Types
typedef std::pair< void *, const ROOT::Reflex::Type >	ObjH
typedef std::map< std::string, DbH >	DbMap
typedef std::map< std::string, std::string >	DbFidMap
Public Member Functions
	PoolDbCnvSvc (const std::string &name, ISvcLocator *svc)
	Standard constructor.
virtual	~PoolDbCnvSvc ()
	Standard destructor.
virtual StatusCode	updateServiceState (IOpaqueAddress *pAddress)
	Update state of the service.
StatusCode	error (const std::string &msg, bool rethrow=true)
	Standard way to print errors.
StatusCode	setDataProvider (IDataProviderSvc *pDataSvc)
	Connect to data provider service.
virtual StatusCode	queryInterface (const InterfaceID &riid, void **ppvInterface)
	ConversionSvc overload: Query interface.
virtual StatusCode	initialize ()
	ConversionSvc overload: initialize Db service.
virtual StatusCode	finalize ()
	ConversionSvc overload: Finalize Db service.
virtual IConverter *	createConverter (long typ, const CLID &wanted, const ICnvFactory *fac)
	ConversionSvc overload: Create new Converter using factory.
virtual void	loadConverter (DataObject *)
	ConversionSvc overload: Load the class (dictionary) for the converter.
virtual IPoolCacheSvc *	cacheSvc () const
	Access to cache service.
virtual StatusCode	accessStorageType (const std::string &type_string, long &gaudi_type)
	Create access to the POOL persistency mechanism using the Gaudi String identifier.
virtual StatusCode	connectOutput (const std::string &outputFile, const std::string &openMode)
	Connect the output file to the service with open mode.
StatusCode	connectDatabase (int typ, const std::string &outputFile, pool::DbAccessMode openMode, PoolDbDataConnection **con)
	Connect the output file to the service with open mode.
StatusCode	connectContainer (pool::DbDatabase &dbH, const std::string &cntName, pool::DbAccessMode openMode, const pool::DbTypeInfo *shape, pool::DbContainer &cntH)
	Connect to a database container.
virtual StatusCode	connectContainer (int typ, const std::string &dbName, const std::string &cntName, pool::DbAccessMode openMode, const pool::DbTypeInfo *shape, pool::DbContainer &cntH)
	Connect to a database container.
virtual StatusCode	connectOutput (const std::string &outputFile)
	Connect the output file to the service.
virtual StatusCode	commitOutput (const std::string &outputFile, bool do_commit)
	Commit pending output.
virtual StatusCode	connect (const std::string &dbName, const std::string &cntName, pool::DbContainer &cntH)
	Connect to a database container in read mode.
virtual StatusCode	disconnect (const std::string &dbName)
	Disconnect from an existing data stream.
virtual StatusCode	createAddress (long svc_type, const CLID &clid, const std::string par, const unsigned long ip, IOpaqueAddress *&refpAddress)
	IAddressCreator implementation: Address creation.
virtual StatusCode	createAddress (pool::Token pToken, PoolDbAddress *ppAddress)
	IPoolDbMgr implementation: Address creation.
virtual pool::DbSelect *	createSelect (const std::string &criteria, const std::string &dbName, const std::string &cntName)
	Request an iterator over a container from the service.
virtual StatusCode	markWrite (pool::DataCallBack call, const std::string &cntName, PoolDbAddress *ppAddr=0)
	Marks a reference to be written.
virtual StatusCode	markUpdate (pool::DataCallBack call, PoolDbAddress pAddr)
	Mark an object for update.
virtual StatusCode	read (pool::DataCallBack call, PoolDbAddress pAddr)
	Read existing object.
virtual StatusCode	read (pool::DataCallBack *call, pool::Token &tok)
	Read existing object. Open transaction in read mode if not active.
Protected Attributes
std::string	m_cacheSvcName
	Name of the POOL cache service instance to connect to.
std::string	m_implementation
	Name of the OODataBase implementation.
std::string	m_serverConnect
	Connection string to server.
bool	m_safeTransactions
	Flag to indicate safe transactions if requested.
std::vector< std::string >	m_domainOpts
	Buffer for domain options.
std::vector< std::string >	m_databaseOpts
	Buffer for database options.
std::vector< std::string >	m_containerOpts
	Buffer for container options.
IDataManagerSvc *	m_dataMgr
	Services needed for proper operation: Data Manager.
IPoolCacheSvc *	m_cacheSvc
	Reference to POOL cache service.
PoolDbDataConnection *	m_current
	On writing: reference to active output stream.
pool::DbDefaultDataHandler	m_handler
	POOL Datahandler.
pool::DbDomain	m_domH
	POOL technology domain handle.
std::string	m_shareFiles
	Share files ? If set to YES, files will not be closed on finalize.
bool	m_checkFIDs
	Flag to enforce FID checking and verification.
Gaudi::IFileCatalog *	m_catalog
	Reference to the file catalog.
Gaudi::IIODataManager *	m_ioMgr
	Reference to the I/O data manager.
Classes
struct	DbH

Member Typedef Documentation

typedef std::pair< void*, const ROOT::Reflex::Type > PoolDbCnvSvc::ObjH

Definition at line 60 of file PoolDbCnvSvc.h.

typedef std::map<std::string, DbH> PoolDbCnvSvc::DbMap

Definition at line 61 of file PoolDbCnvSvc.h.

typedef std::map<std::string, std::string> PoolDbCnvSvc::DbFidMap

Definition at line 62 of file PoolDbCnvSvc.h.

Constructor & Destructor Documentation

PoolDbCnvSvc::PoolDbCnvSvc	(	const std::string &	name,
		ISvcLocator *	svc
	)

Standard constructor.

PoolDbCnvSvc::~PoolDbCnvSvc ( ) [virtual]

Standard destructor.

Definition at line 98 of file PoolDbCnvSvc.cpp.

00098                               {
00099   s_count->decrement();
00100 }

Member Function Documentation

StatusCode PoolDbCnvSvc::updateServiceState ( IOpaqueAddress * pAddress ) [virtual]

Update state of the service.

Reimplemented from ConversionSvc.

Definition at line 194 of file PoolDbCnvSvc.cpp.

00194                                                                         {
00195   return S_OK;
00196 }

StatusCode PoolDbCnvSvc::error	(	const std::string &	msg,
		bool	rethrow = `true`
	)

Standard way to print errors.

after the printout an exception is thrown.

Parameters:

	msg	[IN] Message string to be printed.
	rethrow	[IN] Flag to indicate if an exception should be thrown

Returns:: Status code returning failure.

StatusCode PoolDbCnvSvc::setDataProvider ( IDataProviderSvc * pDataSvc ) [virtual]

Connect to data provider service.

Re-connects to data manager service.

Parameters:

pDataSvc

New data provider object.

Returns:: Status code indicating success or failure.

Reimplemented from ConversionSvc.

Definition at line 256 of file PoolDbCnvSvc.cpp.

00256                                                                     {
00257   IDataManagerSvc* tmp = m_dataMgr;
00258   if (pDataSvc)  {
00259     StatusCode status = 
00260       pDataSvc->queryInterface(IID_IDataManagerSvc, pp_cast<void>(&m_dataMgr));
00261     if ( !status.isSuccess() )    {
00262       return error("Cannot connect to \"IDataManagerSvc\" interface.");
00263     }
00264   }
00265   if ( tmp ) tmp->release();
00266   return ConversionSvc::setDataProvider(pDataSvc);
00267 }

StatusCode PoolDbCnvSvc::queryInterface	(	const InterfaceID &	riid,
		void **	ppvInterface
	)			`[virtual]`

ConversionSvc overload: Query interface.

Query interface.

Reimplemented from ConversionSvc.

Definition at line 104 of file PoolDbCnvSvc.cpp.

00104                                                                            {
00105   if ( IID_IPoolDbMgr == riid )  {
00106     *ppvInterface = (IPoolDbMgr*)this;
00107     addRef();
00108     return S_OK;
00109   }
00110   // Interface is not directly availible: try out a base class
00111   return ConversionSvc::queryInterface(riid, ppvInterface);
00112 }

StatusCode PoolDbCnvSvc::initialize ( ) [virtual]

ConversionSvc overload: initialize Db service.

Initialize the Db data persistency service.

Reimplemented from ConversionSvc.

Definition at line 115 of file PoolDbCnvSvc.cpp.

00115                                      {
00116   StatusCode status = ConversionSvc::initialize();
00117   MsgStream log(messageService(), name());
00118   if ( !status.isSuccess() ) {
00119     log << MSG::ERROR << "Failed to initialize ConversionSvc base class."
00120         << endmsg;
00121     return status;
00122   }
00123   status = accessStorageType(m_implementation, m_type);
00124   if ( !status.isSuccess() )  {
00125     log << MSG::ERROR << "Failed to connect to POOL implementation:"
00126         << m_implementation << endmsg;
00127     return status;
00128   }
00129   status = service(m_cacheSvcName, m_cacheSvc);
00130   if ( !status.isSuccess() )  {
00131     log << MSG::ERROR << "Failed to connect to POOL cache service:"
00132         << m_cacheSvcName << endmsg;
00133     return status;
00134   }
00135   status = service("IODataManager", m_ioMgr);
00136   if( !status.isSuccess() ) {
00137     log << MSG::ERROR 
00138         << "Unable to localize interface from service:IODataManager" << endreq;
00139     return status;
00140   }
00141   status = service("FileCatalog", m_catalog);
00142   if( !status.isSuccess() ) {
00143     log << MSG::ERROR 
00144         << "Unable to localize interface from service:FileCatalog" << endreq;
00145     return status;
00146   }
00147   DbOptionCallback cb(m_cacheSvc->callbackHandler());
00148   if ( m_domH.open(m_cacheSvc->session(),m_type,pool::UPDATE).isSuccess() )  {
00149     SmartIF<IProperty> prp(m_ioMgr);
00150     IntegerProperty ageLimit;
00151     ageLimit.assign(prp->getProperty("AgeLimit"));
00152     log << MSG::DEBUG << "POOL agelimit is set to " << ageLimit.value() << endmsg;
00153     m_domH.setAgeLimit(ageLimit.value());
00154     return S_OK;
00155   }
00156   return S_OK;
00157 }

StatusCode PoolDbCnvSvc::finalize ( void ) [virtual]

ConversionSvc overload: Finalize Db service.

Finalize the Db data persistency service.

Reimplemented from ConversionSvc.

Definition at line 160 of file PoolDbCnvSvc.cpp.

00160                                      {
00161   MsgStream log(messageService(),name());
00162   DbOptionCallback cb(m_cacheSvc->callbackHandler());
00163   if ( m_ioMgr )  {
00164     if ( ::toupper(m_shareFiles[0]) != 'Y' )  {
00165       IIODataManager::Connections cons = m_ioMgr->connections(this);
00166       for(IIODataManager::Connections::iterator i=cons.begin(); i != cons.end(); ++i)  {
00167         if ( m_ioMgr->disconnect(*i).isSuccess() )  {
00168           log << MSG::INFO << "Disconnected data IO:" << (*i)->fid();
00169           log << "[" << (*i)->pfn() << "]";
00170           log << endmsg;
00171           delete (*i);
00172         }
00173       }
00174     }
00175     else  {
00176       log << MSG::INFO << "File sharing enabled. Do not retire files." << endmsg;
00177     }
00178     m_ioMgr->release();
00179     m_ioMgr = 0;
00180   }
00181   m_domH.close();
00182   m_domH = 0;
00183   if ( m_dataMgr ) m_dataMgr->clearStore().ignore();
00184   pool::releasePtr(m_dataMgr);
00185   pool::releasePtr(m_catalog);
00186   pool::releasePtr(m_cacheSvc);
00187   StatusCode status = ConversionSvc::finalize();
00188   log << MSG::DEBUG << "POOL conversion service finalized " << name() << " ";
00189   log << (const char*)(status.isSuccess() ? "successfully" : "with errors") << endmsg;
00190   return status;
00191 }

IConverter * PoolDbCnvSvc::createConverter	(	long	typ,
		const CLID &	wanted,
		const ICnvFactory *	fac
	)			`[virtual]`

ConversionSvc overload: Create new Converter using factory.

Create new Converter using factory.

Reimplemented from ConversionSvc.

Definition at line 200 of file PoolDbCnvSvc.cpp.

00201 {
00202   IConverter* pConverter;
00203   ConverterID cnvid(POOL_StorageType, wanted);  
00204   pConverter = PluginService::CreateWithId<IConverter*>(cnvid, typ, wanted, serviceLocator());
00205   if ( 0 == pConverter )  {
00206     const CLID gen_clids[] = {  
00207     /* ObjectList               */ CLID_Any + CLID_ObjectList,
00208     /* ObjectVector             */ CLID_Any + CLID_ObjectVector, 
00209     /* Keyed Map                */ CLID_Any + CLID_ObjectVector+0x00030000,
00210     /* Keyed Hashmap            */ CLID_Any + CLID_ObjectVector+0x00040000,
00211     /* Keyed redirection array  */ CLID_Any + CLID_ObjectVector+0x00050000,
00212     /* Standard, non-container  */ CLID_Any
00213     };
00214     for ( unsigned int i = 0; i < sizeof(gen_clids)/sizeof(gen_clids[0]); i++ ) {
00215       if ( (wanted>>16) == (gen_clids[i]>>16) )  {
00216         ConverterID cnvid(POOL_StorageType, gen_clids[i]);  
00217         pConverter = PluginService::CreateWithId<IConverter*>(cnvid, typ, wanted, serviceLocator());
00218         if ( 0 != pConverter ) {
00219           return pConverter;
00220         }
00221       }
00222     }
00223     // Check if a converter using object update is needed
00224     if ( (wanted>>24) != 0 )  {
00225       ConverterID cnvid(POOL_StorageType, CLID_Any | 1<<31);  
00226       pConverter = PluginService::CreateWithId<IConverter*>(cnvid, typ, wanted, serviceLocator());
00227       if ( 0 != pConverter ) {
00228         return pConverter;
00229       }
00230     }
00231     // If we do not have found any suitable container after searching
00232     // for standard containers, we will use the "ANY" converter 
00233     // ... and pray for everything will go well.
00234     ConverterID cnvid(POOL_StorageType, CLID_Any);  
00235     pConverter = PluginService::CreateWithId<IConverter*>(cnvid, typ, wanted, serviceLocator());
00236     if ( 0 != pConverter ) {
00237       MsgStream log(msgSvc(), name());
00238       log << MSG::INFO << "Using \"Any\" converter "
00239           << "for objects of type " 
00240           << std::showbase << std::hex << wanted << endmsg;
00241     }
00242   }
00243   return pConverter;
00244 }

void PoolDbCnvSvc::loadConverter ( DataObject * pObject ) [virtual]

ConversionSvc overload: Load the class (dictionary) for the converter.

Reimplemented from ConversionSvc.

Definition at line 246 of file PoolDbCnvSvc.cpp.

00246                                                     {
00247   if (pObject) {
00248     MsgStream log(msgSvc(), name());
00249     std::string cname = System::typeinfoName(typeid(*pObject));
00250     log << MSG::DEBUG << "Trying to 'Autoload' dictionary for class " << cname << endmsg;
00251     gInterpreter->EnableAutoLoading();
00252     gInterpreter->AutoLoad(cname.c_str());
00253   }
00254 }

virtual IPoolCacheSvc* PoolDbCnvSvc::cacheSvc ( ) const [inline, virtual]

Access to cache service.

Implements IPoolDbMgr.

Definition at line 157 of file PoolDbCnvSvc.h.

00157 {  return m_cacheSvc; }

virtual StatusCode PoolDbCnvSvc::accessStorageType	(	const std::string &	type_string,
		long &	gaudi_type
	)			`[virtual]`

Create access to the POOL persistency mechanism using the Gaudi String identifier.

Also all appropriate DLLS will be loaded on the fly.

Parameters:

	type_string	Gaudi storage string identifier
	gaudi_type	Gaudi storage identifier

Returns:: Status code indicating failure or success.

Implements IPoolDbMgr.

virtual StatusCode PoolDbCnvSvc::connectOutput	(	const std::string &	outputFile,
		const std::string &	openMode
	)			`[virtual]`

Connect the output file to the service with open mode.

Parameters:

	outputFile	String containig output file
	openMode	String containig opening mode of the output file

Returns:: Status code indicating success or failure.

Reimplemented from ConversionSvc.

StatusCode PoolDbCnvSvc::connectDatabase	(	int	typ,
		const std::string &	outputFile,
		pool::DbAccessMode	openMode,
		PoolDbDataConnection **	con
	)

Connect the output file to the service with open mode.

Parameters:

	outputFile	String containig output file
	openMode	Opening mode of the output file
	con	Data connection reference

Returns:: Status code indicating success or failure.

StatusCode PoolDbCnvSvc::connectContainer	(	pool::DbDatabase &	dbH,
		const std::string &	cntName,
		pool::DbAccessMode	openMode,
		const pool::DbTypeInfo *	shape,
		pool::DbContainer &	cntH
	)

Connect to a database container.

Parameters:

	dbH	Handle to hosting database
	cntName	String containing the name of the container object
	openMode	Open mode (READ,WRITE,UPDATE,...)
	shape	Default shape of objects in the container
	cntH	Reference to the POOL container object

Returns:: Status code indicating success or failure.

virtual StatusCode PoolDbCnvSvc::connectContainer	(	int	typ,
		const std::string &	dbName,
		const std::string &	cntName,
		pool::DbAccessMode	openMode,
		const pool::DbTypeInfo *	shape,
		pool::DbContainer &	cntH
	)			`[virtual]`

Connect to a database container.

Parameters:

	typ	Database technology type
	dbName	String containing name of the database
	cntName	String containing the name of the container object
	openMode	Open mode (READ,WRITE,UPDATE,...)
	shape	Default shape of objects in the container
	cntH	Reference to the POOL container object

Returns:: Status code indicating success or failure.

Implements IPoolDbMgr.

virtual StatusCode PoolDbCnvSvc::connectOutput ( const std::string & outputFile ) [virtual]

Connect the output file to the service.

Parameters:

outputFile

String containig output file

Returns:: Status code indicating success or failure.

Reimplemented from ConversionSvc.

virtual StatusCode PoolDbCnvSvc::commitOutput	(	const std::string &	outputFile,
		bool	do_commit
	)			`[virtual]`

Commit pending output.

Parameters:

	outputFile	String containig output file
	do_commit	if true commit the output and flush eventually pending items to the database if false, discard pending buffers. Note: The possibility to commit or rollback depends on the database technology used!

Returns:: Status code indicating success or failure.

Reimplemented from ConversionSvc.

virtual StatusCode PoolDbCnvSvc::connect	(	const std::string &	dbName,
		const std::string &	cntName,
		pool::DbContainer &	cntH
	)			`[virtual]`

Connect to a database container in read mode.

Parameters:

	dbName	String containing name of the database
	cntName	String containing the name of the container object
	cntH	Reference to the POOL container object

Returns:: Status code indicating success or failure.

Implements IPoolDbMgr.

virtual StatusCode PoolDbCnvSvc::disconnect ( const std::string & dbName ) [virtual]

Disconnect from an existing data stream.

Parameters:

dbName

String containing name of the database

Returns:: Status code indicating success or failure.

Implements IPoolDbMgr.

StatusCode PoolDbCnvSvc::createAddress	(	long	svc_type,
		const CLID &	clid,
		const std::string *	par,
		const unsigned long *	ip,
		IOpaqueAddress *&	refpAddress
	)			`[virtual]`

IAddressCreator implementation: Address creation.

Create an address using the link infotmation together with the triple (database name/container name/object name).

Parameters:

	refLink	Reference to abstract link information
	dbName	Database name
	containerName	Object container name
	refpAddress	Opaque address information to retrieve object

Returns:: StatusCode indicating SUCCESS or failure

Reimplemented from ConversionSvc.

Definition at line 468 of file PoolDbCnvSvc.cpp.

00473 {
00474   PoolDbAddress* pA = 0;
00475   pool::Guid guid = pool::Guid::null();
00476   std::auto_ptr<pool::Token> tok(new pool::Token());
00477   guid.Data1 = clid;
00478   tok->setDb(par[0]);
00479   tok->setCont(par[1]);
00480   tok->setTechnology(typ);
00481   tok->setClassID(guid);
00482   tok->oid().first = ip[0];
00483   tok->oid().second = ip[1];
00484   if ( createAddress(tok.get(), &pA).isSuccess() )  {
00485     refpAddress = pA;
00486     tok->release();
00487     tok.release();
00488     return S_OK;
00489   }
00490   return error("createAddress> Failed to create opaque address.");
00491 }

StatusCode PoolDbCnvSvc::createAddress	(	pool::Token *	pToken,
		PoolDbAddress **	ppAddress
	)			`[virtual]`

IPoolDbMgr implementation: Address creation.

Create an address using an existing POOL token object.

Parameters:

	pToken	Reference to valid POOL token object.
	ppAddress	Opaque address information to retrieve object

Returns:: StatusCode indicating SUCCESS or failure

Implements IPoolDbMgr.

Definition at line 494 of file PoolDbCnvSvc.cpp.

00494                                                                             {
00495   if ( pTok )  {
00496     *ppAdd = new PoolDbAddress(pTok);
00497     return S_OK;
00498   }
00499   return error("createAddress> Failed to create opaque address from POOL token.");
00500 }

virtual pool::DbSelect* PoolDbCnvSvc::createSelect	(	const std::string &	criteria,
		const std::string &	dbName,
		const std::string &	cntName
	)			`[virtual]`

Request an iterator over a container from the service.

Parameters:

	criteria	Selection criteria to restrict iteration
	dbName	String containing name of the database
	cntName	String containing the name of the container object

Returns:: Reference to the selection object

Implements IPoolDbMgr.

virtual StatusCode PoolDbCnvSvc::markWrite	(	pool::DataCallBack *	call,
		const std::string &	cntName,
		PoolDbAddress **	ppAddr = `0`
	)			`[virtual]`

Marks a reference to be written.

Parameters:

	call	Pointer to callback object
	cntName	Container name the object should be written to.
	refpAddr	Persistent object location to be used for link setup.

Returns:: Status code indicating success or failure.

Implements IPoolDbMgr.

StatusCode PoolDbCnvSvc::markUpdate	(	pool::DataCallBack *	call,
		PoolDbAddress *	pAddr
	)			`[virtual]`

Mark an object for update.

Parameters:

	call	Pointer to callback object
	pAddr	Persistent object location to be used for link setup.

Returns:: Status code indicating success or failure.

Implements IPoolDbMgr.

Definition at line 549 of file PoolDbCnvSvc.cpp.

00549                                                                               {
00550   if ( pA && call )  {
00551     pool::Token* tok = pA->token();
00552     DbContainer cntH(POOL_StorageType);
00553     const DbTypeInfo* info = (const DbTypeInfo*)call->shape();
00554     StatusCode sc = connectContainer(FID,tok->dbID(),tok->contID(),pool::UPDATE,info,cntH);
00555     if ( sc.isSuccess() )  {
00556       call->setHandler(&m_handler);
00557       if ( cntH.update(call, tok->oid()).isSuccess() )  {
00558         return S_OK;
00559       }
00560       return error("markUpdate> Failed to update object:"+tok->toString());
00561     }
00562     MsgStream log(messageService(), name());
00563     log << MSG::ERROR << "markUpdate> The container " 
00564         << tok->dbID() << "::" << tok->contID()
00565         << " cannot be accessed." << endmsg
00566         << "Was this object really read from the container "
00567         << "the object token claims?"
00568         << endmsg;
00569     return S_FAIL;
00570   }
00571   return error("createRep> Invalid object address for update.");
00572 }

StatusCode PoolDbCnvSvc::read	(	pool::DataCallBack *	call,
		PoolDbAddress *	pAddr
	)			`[virtual]`

Read existing object.

Read existing object. Open transaction in read mode if not active.

Open transaction in read mode if not active.

Parameters:

	call	Pointer to callback object
	pAddr	Pointer to valid object address.

Returns:: Status code indicating success or failure.

Implements IPoolDbMgr.

Definition at line 575 of file PoolDbCnvSvc.cpp.

00575                                                                         {
00576   StatusCode sc = read(call, *pA->token());
00577   if ( sc.isSuccess() || sc == BAD_DATA_CONNECTION )  {
00578     return sc;
00579   }
00580   std::string err="read> Cannot read object:"+pA->registry()->identifier()+" ";
00581   return error(err, false);
00582 }

StatusCode PoolDbCnvSvc::read	(	pool::DataCallBack *	call,
		pool::Token &	tok
	)			`[virtual]`

Read existing object. Open transaction in read mode if not active.

Parameters:

	call	Pointer to callback object
	tok	Reference to pool token describing the object

Returns:: Status code indicating success or failure.

Implements IPoolDbMgr.

Definition at line 585 of file PoolDbCnvSvc.cpp.

00585                                                                      {
00586   try  {
00587     DbContainer cntH(tok.technology());
00588     const DbTypeInfo* info = (const DbTypeInfo*)call->shape();
00589     StatusCode sc = connectContainer(FID,tok.dbID(),tok.contID(),pool::READ,info,cntH);
00590     if ( sc.isSuccess() )  {
00591       typedef pool::DbObjectHandle<pool::DbObject> ObjH;
00592       call->setHandler(&m_handler);
00593       return ObjH::openEx(cntH, tok, call, pool::READ).isSuccess() ? S_OK : S_FAIL;
00594     }
00595     else if ( sc == BAD_DATA_CONNECTION )  {
00596       return sc;
00597     }
00598   }
00599   catch (std::exception& e)  {
00600     std::string err="read> Cannot read object:"+tok.toString()+" ";
00601     return error(err+e.what(), false);
00602   }
00603   catch (...)   {
00604     std::string err = "read> Cannot read object:"+tok.toString();
00605     return error(err+" [Unknown fatal exception]", false);
00606   }
00607   return error("read> Cannot read object:"+tok.toString(), false);
00608 }

Member Data Documentation

std::string PoolDbCnvSvc::m_cacheSvcName [protected]

Name of the POOL cache service instance to connect to.

Definition at line 66 of file PoolDbCnvSvc.h.

std::string PoolDbCnvSvc::m_implementation [protected]

Name of the OODataBase implementation.

Definition at line 69 of file PoolDbCnvSvc.h.

std::string PoolDbCnvSvc::m_serverConnect [protected]

Connection string to server.

Definition at line 72 of file PoolDbCnvSvc.h.

bool PoolDbCnvSvc::m_safeTransactions [protected]

Flag to indicate safe transactions if requested.

Definition at line 75 of file PoolDbCnvSvc.h.

std::vector<std::string> PoolDbCnvSvc::m_domainOpts [protected]

Buffer for domain options.

Definition at line 78 of file PoolDbCnvSvc.h.

std::vector<std::string> PoolDbCnvSvc::m_databaseOpts [protected]

Buffer for database options.

Definition at line 81 of file PoolDbCnvSvc.h.

std::vector<std::string> PoolDbCnvSvc::m_containerOpts [protected]

Buffer for container options.

Definition at line 84 of file PoolDbCnvSvc.h.

IDataManagerSvc* PoolDbCnvSvc::m_dataMgr [protected]

Services needed for proper operation: Data Manager.

Definition at line 87 of file PoolDbCnvSvc.h.

IPoolCacheSvc* PoolDbCnvSvc::m_cacheSvc [protected]

Reference to POOL cache service.

Definition at line 90 of file PoolDbCnvSvc.h.

PoolDbDataConnection* PoolDbCnvSvc::m_current [protected]

On writing: reference to active output stream.

Definition at line 93 of file PoolDbCnvSvc.h.

pool::DbDefaultDataHandler PoolDbCnvSvc::m_handler [protected]

POOL Datahandler.

Definition at line 96 of file PoolDbCnvSvc.h.

pool::DbDomain PoolDbCnvSvc::m_domH [protected]

POOL technology domain handle.

Definition at line 99 of file PoolDbCnvSvc.h.

std::string PoolDbCnvSvc::m_shareFiles [protected]

Share files ? If set to YES, files will not be closed on finalize.

Definition at line 102 of file PoolDbCnvSvc.h.

bool PoolDbCnvSvc::m_checkFIDs [protected]

Flag to enforce FID checking and verification.

Definition at line 105 of file PoolDbCnvSvc.h.

Gaudi::IFileCatalog* PoolDbCnvSvc::m_catalog [protected]

Reference to the file catalog.

Definition at line 108 of file PoolDbCnvSvc.h.

Gaudi::IIODataManager* PoolDbCnvSvc::m_ioMgr [protected]

Reference to the I/O data manager.

Definition at line 111 of file PoolDbCnvSvc.h.

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

/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r3/GaudiPoolDb/GaudiPoolDb/PoolDbCnvSvc.h
/afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v20r3/GaudiPoolDb/src/PoolDbCnvSvc.cpp

	Gaudi Framework, version v20r3
	Generated: 24 Nov 2008

Gaudi Framework, version v20r3

PoolDbCnvSvc Class Reference

Detailed Description

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Protected Attributes

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