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SmartDataLocator.h
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1 // ====================================================================
2 // SmartDataLocator.h
3 // --------------------------------------------------------------------
4 //
5 // Package : GaudiKernel ( The LHCb Offline System)
6 //
7 // Description: Implementation of a smart pointer class to access
8 // easily (and efficiently) data stores.
9 //
10 // Author : M.Frank
11 // ====================================================================
12 #ifndef GAUDIKERNEL_SMARTDATALOCATOR_H
13 #define GAUDIKERNEL_SMARTDATALOCATOR_H 1
14
15 // Framework include files
16 #include "GaudiKernel/SmartDataPtr.h"
17
45 template <class TYPE>
46 class SmartDataLocator : public SmartDataStorePtr<TYPE, SmartDataObjectPtr::ObjectLoader> {
47 public:
56 SmartDataLocator( IDataProviderSvc* pService, const std::string& fullPath )
57 : SmartDataStorePtr<TYPE, SmartDataObjectPtr::ObjectLoader>( pService, 0, fullPath ) {}
58
67 SmartDataLocator( IDataProviderSvc* pService, IRegistry* pDirectory )
68 : SmartDataStorePtr<TYPE, SmartDataObjectPtr::ObjectLoader>( pService, pDirectory, "" ) {}
69
81 SmartDataLocator( IDataProviderSvc* pService, DataObject* pObject, const std::string& path )
82 : SmartDataStorePtr<TYPE, SmartDataObjectPtr::ObjectLoader>( pService, 0, path ) {
83 if ( 0 != pObject ) { this->m_pDirectory = pObject->registry(); }
84 }
85
95 SmartDataLocator( SmartDataObjectPtr& refObject, IRegistry* pDirectory )
96 : SmartDataStorePtr<TYPE, SmartDataObjectPtr::ObjectLoader>( refObject.service(), pDirectory, "" ) {}
97
107 SmartDataLocator( SmartDataObjectPtr& refObject, const std::string& path )
108 : SmartDataStorePtr<TYPE, SmartDataObjectPtr::ObjectLoader>( refObject.service(), refObject.directory(), path ) {}
109
112 virtual ~SmartDataLocator() {}
113
115 template <class OTHER>
116 SmartDataPtr<OTHER>& operator=( OTHER* pObj ) {
117 this->m_pObject = dynamic_cast<TYPE*>( pObj );
118 return *this;
119 }
120
122 template <class OTHER>
123 SmartDataPtr<OTHER>& operator=( const OTHER* pObj ) {
124 this->m_pObject = dynamic_cast<TYPE*>( const_cast<OTHER*>( pObj ) );
125 return *this;
126 }
127 };
128
129 #endif // GAUDIKERNEL_SMARTDATALOCATOR_H
SmartDataLocator::SmartDataLocator
SmartDataLocator(IDataProviderSvc *pService, DataObject *pObject, const std::string &path)
Standard constructor: Construct an SmartDataLocator instance which is able to connect to a DataObject...
Definition: SmartDataLocator.h:81
DataObject::registry
IRegistry * registry() const
Get pointer to Registry.
Definition: DataObject.h:72
SmartDataLocator::SmartDataLocator
SmartDataLocator(IDataProviderSvc *pService, const std::string &fullPath)
Standard constructor: Construct an SmartDataLocator instance which is able to connect to a DataObject...
Definition: SmartDataLocator.h:56
SmartDataLocator
A small class used to access easily (and efficiently) data items residing in data stores.
Definition: SmartDataLocator.h:46
IDataProviderSvc
Data provider interface definition.
Definition: IDataProviderSvc.h:43
SmartDataObjectPtr::service
IDataProviderSvc * service()
Retrieve data service.
Definition: SmartDataObjectPtr.h:80
std::string
STL class.
SmartDataObjectPtr::ObjectLoader
Helper class to configure smart pointer functionality.
Definition: SmartDataObjectPtr.h:36
SmartDataObjectPtr::path
const std::string & path() const
Path name.
Definition: SmartDataObjectPtr.h:71
SmartDataLocator::SmartDataLocator
SmartDataLocator(SmartDataObjectPtr &refObject, const std::string &path)
Standard constructor: Construct an SmartDataLocator instance which is able to connect to a DataObject...
Definition: SmartDataLocator.h:107
SmartDataLocator::SmartDataLocator
SmartDataLocator(IDataProviderSvc *pService, IRegistry *pDirectory)
Standard constructor: Construct an SmartDataLocator instance which is able to connect to a DataObject...
Definition: SmartDataLocator.h:67
SmartDataPtr.h
IRegistry
The IRegistry represents the entry door to the environment any data object residing in a transient da...
Definition: IRegistry.h:22
SmartDataLocator::SmartDataLocator
SmartDataLocator(SmartDataObjectPtr &refObject, IRegistry *pDirectory)
Standard constructor: Construct an SmartDataLocator instance which is able to connect to a DataObject...
Definition: SmartDataLocator.h:95
SmartDataObjectPtr
A small class used to access easily (and efficiently) data items residing in data stores.
Definition: SmartDataObjectPtr.h:32
SmartDataStorePtr
A small class used to access easily (and efficiently) data items residing in data stores.
Definition: SmartDataStorePtr.h:45
SmartDataPtr
A small class used to access easily (and efficiently) data items residing in data stores.
Definition: SmartDataPtr.h:47
SmartDataLocator::~SmartDataLocator
virtual ~SmartDataLocator()
Standard destructor.
Definition: SmartDataLocator.h:112
SmartDataObjectPtr::directory
IRegistry * directory()
Access to data directory.
Definition: SmartDataObjectPtr.h:74
SmartDataLocator::operator=
SmartDataPtr< OTHER > & operator=(const OTHER *pObj)
Automatic conversion to data type.
Definition: SmartDataLocator.h:123
SmartDataLocator::operator=
SmartDataPtr< OTHER > & operator=(OTHER *pObj)
Automatic conversion to data type.
Definition: SmartDataLocator.h:116
DataObject
A DataObject is the base class of any identifiable object on any data store.
Definition: DataObject.h:30
SmartDataStorePtr< TYPE, SmartDataObjectPtr::ObjectLoader >::m_pObject
TYPE * m_pObject
Pointer to data store object.
Definition: SmartDataStorePtr.h:118