Handle to be used in lieu of naked pointers to tools. More...

#include <GaudiKernel/ToolHandle.h>

Inheritance diagram for ToolHandle< T >:

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Collaboration diagram for ToolHandle< T >:

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Public Member Functions
	ToolHandle (const IInterface *parent=nullptr, bool createIf=true)
	Constructor for a tool with default tool type and name. More...

template<typename CT = T, typename NCT = typename std::remove_const<T>::type>
	ToolHandle (const ToolHandle< NCT > &other, typename std::enable_if< std::is_const< CT >::value &&!std::is_same< CT, NCT >::value >::type *=nullptr)
	Copy constructor from a non const T to const T tool handle. More...

	ToolHandle (const std::string &toolTypeAndName, const IInterface *parent=nullptr, bool createIf=true)
	Create a handle ('smart pointer') to a tool. More...

StatusCode	initialize (const std::string &toolTypeAndName, const IInterface *parent=nullptr, bool createIf=true)

StatusCode	retrieve () const
	Retrieve the AlgTool. More...

StatusCode	release () const
	Release the AlgTool. More...

StatusCode	retrieve (T *&algTool) const override
	Do the real retrieval of the AlgTool. More...

StatusCode	release (T *algTool) const override
	Do the real release of the AlgTool. More...

std::string	typeAndName () const override

std::add_const< T >::type *	get () const

T *	get ()

Public Member Functions inherited from BaseToolHandle
StatusCode	retrieve (IAlgTool *&tool) const

const IAlgTool *	get () const

IAlgTool *	get ()

Public Member Functions inherited from ToolHandleInfo
virtual	~ToolHandleInfo ()=default

bool	isPublic () const noexcept

bool	createIf () const noexcept

const IInterface *	parent () const noexcept

Public Member Functions inherited from GaudiHandle< T >
template<typename CT = T, typename NCT = typename std::remove_const<T>::type>
	GaudiHandle (const GaudiHandle< NCT > &other, typename std::enable_if< std::is_const< CT >::value &&!std::is_same< CT, NCT >::value >::type *=nullptr)
	Copy constructor needed for correct ref-counting. More...

	GaudiHandle (const GaudiHandle &other)
	Copy constructor needed for correct ref-counting. More...

template<typename CT = T, typename NCT = typename std::remove_const<T>::type>
std::enable_if< std::is_const< CT >::value &&!std::is_same< CT, NCT >::value, GaudiHandle & >::type	operator= (const GaudiHandle< NCT > &other)
	Assignment operator for correct ref-counting. More...

GaudiHandle &	operator= (const GaudiHandle &other)
	Assignment operator for correct ref-counting. More...

StatusCode	retrieve () const
	Retrieve the component. More...

StatusCode	release () const
	Release the component. More...

bool	isValid () const
	Check if the handle is valid (try to retrive the object is not done yet). More...

	operator bool () const
	For testing if handle has component. More...

T *	get ()
	Return the wrapped pointer, not calling retrieve() if null. More...

std::add_const< T >::type *	get () const
	Return the wrapped pointer, not calling retrieve() if null. More...

bool	isSet () const
	True if the wrapped pointer is not null. More...

T &	operator* ()

T *	operator-> ()

std::add_const< T >::type &	operator* () const

std::add_const< T >::type *	operator-> () const

std::string	getDefaultType ()
	Helper function to get default type string from the class type. More...

std::string	getDefaultName ()

Public Member Functions inherited from GaudiHandleBase
std::string	typeAndName () const
	The full type and name: "type/name". More...

std::string	type () const
	The concrete component class name: the part before the '/'. More...

std::string	name () const
	The instance name: the part after the '/'. More...

bool	empty () const
	Check if the handle has been set to empty string (i.e. More...

void	setTypeAndName (std::string myTypeAndName)
	The component "type/name" string. More...

void	setName (const std::string &myName)
	Set the instance name (part after the '/') without changing the class type. More...

std::string	pythonPropertyClassName () const override
	Name of the componentType with "Handle" appended. More...

std::string	messageName () const
	name used for printing messages More...

std::string	pythonRepr () const override
	Python representation of handle, i.e. More...

Public Member Functions inherited from GaudiHandleInfo
virtual	~GaudiHandleInfo ()=default
	virtual destructor so that derived class destructor is called. More...

const std::string &	componentType () const

const std::string &	propertyName () const
	name as used in declareProperty(name,gaudiHandle) More...

void	setPropertyName (std::string propName)
	set name as used in declareProperty(name,gaudiHandle). More...

const std::string &	parentName () const
	The name of the parent. More...

Protected Member Functions
const IAlgTool *	getAsIAlgTool () const override

IAlgTool *	getAsIAlgTool () override

StatusCode	i_retrieve (IAlgTool *&algTool) const override

Protected Member Functions inherited from BaseToolHandle
	BaseToolHandle (const IInterface *parent=nullptr, bool createIf=true)

Protected Member Functions inherited from ToolHandleInfo
	ToolHandleInfo (const IInterface *parent=nullptr, bool createIf=true)

Protected Member Functions inherited from GaudiHandle< T >
	GaudiHandle (std::string myTypeAndName, std::string myComponentType, std::string myParentName)

template<class CLASS >
std::remove_const< CLASS >::type *	nonConst (CLASS *p) const
	Cast a pointer to a non const type. More...

Protected Member Functions inherited from GaudiHandleBase
	GaudiHandleBase (std::string myTypeAndName, std::string myComponentType, std::string myParentName)
	Create a handle ('smart pointer') to a gaudi component. More...

Protected Member Functions inherited from GaudiHandleInfo
	GaudiHandleInfo (std::string myComponentType, std::string myParentName)
	Some basic information and helper functions shared between various handles/arrays. More...

void	setComponentType (const std::string &componentType)
	The component type. More...

void	setParentName (const std::string &parent)
	The name of the parent. More...

Private Attributes
ServiceHandle< IToolSvc >	m_pToolSvc

Friends
class	Algorithm

class	AlgTool

class	Service

Additional Inherited Members
Static Public Member Functions inherited from ToolHandleInfo
static std::string	toolComponentType (const IInterface *parent)

static std::string	toolParentName (const IInterface *parent)

Protected Attributes inherited from ToolHandleInfo
const IInterface *	m_parent = nullptr

bool	m_createIf {true}

Detailed Description

template<class T>
class ToolHandle< T >

Handle to be used in lieu of naked pointers to tools.

This allows better control through the framework of tool loading and usage. T is the AlgTool interface class (or concrete class) of the tool to use, and must derive from IAlgTool.

Author: Wim Lavrijsen WLavr.nosp@m.ijse.nosp@m.n@lbl.nosp@m..gov; Marti.nosp@m.n.Wo.nosp@m.udstr.nosp@m.a@ce.nosp@m.rn.ch

Definition at line 30 of file PropertyHolder.h.

Constructor & Destructor Documentation

template<class T>

ToolHandle< T >::ToolHandle	(	const IInterface *	parent = `nullptr`,
		bool	createIf = `true`
	)

inline

Constructor for a tool with default tool type and name.

Can be called only if the type T is a concrete tool type (not an interface), and you want to use the default name.

Definition at line 127 of file ToolHandle.h.

     : BaseToolHandle(parent,createIf),
       GaudiHandle<T>( GaudiHandle<T>::getDefaultType(),
                       toolComponentType(parent),
                       toolParentName(parent) ),
       m_pToolSvc( "ToolSvc", GaudiHandleBase::parentName() )
   {  }

template<class T>

template<typename CT = T, typename NCT = typename std::remove_const<T>::type>

ToolHandle< T >::ToolHandle	(	const ToolHandle< NCT > &	other,
		typename std::enable_if< std::is_const< CT >::value &&!std::is_same< CT, NCT >::value >::type *	= `nullptr`
	)

inline

Copy constructor from a non const T to const T tool handle.

Definition at line 138 of file ToolHandle.h.

     : BaseToolHandle( other.parent(), other.createIf() ),
       GaudiHandle<CT>( other ),
       m_pToolSvc( "ToolSvc", GaudiHandleBase::parentName() )
   {  }

template<class T>

ToolHandle< T >::ToolHandle	(	const std::string &	toolTypeAndName,
		const IInterface *	parent = `nullptr`,
		bool	createIf = `true`
	)

inline

Create a handle ('smart pointer') to a tool.

The arguments are passed on to ToolSvc, and have the same meaning:

StatusCode ToolSvc::retrieveTool ( const std::string& type            ,
                                   T*&                tool            ,
                                   const IInterface*  parent   = 0    ,
                                   bool               createIf = true )

Parameters

owner	class owning the ToolHandle
toolType	"MyToolType/MyToolName" "MyToolType" is short for "MyToolType/MyToolType" 'MyToolType' is the name of the class of the concrete tool 'MyToolName' is to distinguish several tool instances of the same class
parent	the parent Algorithm,Tool or Service of which this tool is a member. If non-zero, the the tool is a private tool of the parent, otherwise it is a public (shared) tool.
createIf	if true, create tool if not yet existing.

Definition at line 177 of file ToolHandle.h.

     : BaseToolHandle(parent,createIf),
       GaudiHandle<T>( toolTypeAndName,
                       toolComponentType(parent),
                       toolParentName(parent) ),
       m_pToolSvc( "ToolSvc", GaudiHandleBase::parentName() )
   {  }

Member Function Documentation

template<class T>

std::add_const<T>::type* ToolHandle< T >::get ( ) const

inline

Definition at line 231 of file ToolHandle.h.

231 { return GaudiHandle<T>::get(); }

GaudiHandle::get

T * get()

Return the wrapped pointer, not calling retrieve() if null.

Definition: GaudiHandle.h:262

template<class T>

T* ToolHandle< T >::get ( )

inline

Definition at line 233 of file ToolHandle.h.

233 { return GaudiHandle<T>::get(); }

GaudiHandle::get

T * get()

Return the wrapped pointer, not calling retrieve() if null.

Definition: GaudiHandle.h:262

template<class T>

const IAlgTool* ToolHandle< T >::getAsIAlgTool ( ) const

inlineoverrideprotectedvirtual

Implements BaseToolHandle.

Definition at line 261 of file ToolHandle.h.

   {
     // const cast to support T being const
     return GaudiHandle<T>::get();
   }

template<class T>

IAlgTool* ToolHandle< T >::getAsIAlgTool ( )

inlineoverrideprotectedvirtual

Implements BaseToolHandle.

Definition at line 267 of file ToolHandle.h.

   {
     // const cast to support T being const
     return this->nonConst( GaudiHandle<T>::get() );
   }

template<class T>

StatusCode ToolHandle< T >::i_retrieve ( IAlgTool *& algTool ) const

inlineoverrideprotectedvirtual

Implements BaseToolHandle.

Definition at line 273 of file ToolHandle.h.

   {
     return m_pToolSvc->retrieve( typeAndName(), IAlgTool::interfaceID(),
                                  algTool,
                                  ToolHandleInfo::parent(), ToolHandleInfo::createIf() );
   }

template<class T>

StatusCode ToolHandle< T >::initialize	(	const std::string &	toolTypeAndName,
		const IInterface *	parent = `nullptr`,
		bool	createIf = `true`
	)

inline

Definition at line 188 of file ToolHandle.h.

   {
 
     GaudiHandleBase::setTypeAndName(toolTypeAndName);
     GaudiHandleBase::setComponentType(toolComponentType(parent));
     GaudiHandleBase::setParentName(toolParentName(parent));
 
     m_parent = parent;
     m_createIf = createIf;
 
     return m_pToolSvc.initialize("ToolSvc", GaudiHandleBase::parentName());
   }

template<class T>

StatusCode ToolHandle< T >::release ( ) const

inline

Release the AlgTool.

Function must be repeated here to avoid hiding the function release( T*& )

Definition at line 210 of file ToolHandle.h.

                              { // not really const, because it updates m_pObject
     return GaudiHandle<T>::release();
   }

template<class T>

StatusCode ToolHandle< T >::release ( T * algTool ) const

inlineoverridevirtual

Do the real release of the AlgTool.

Reimplemented from GaudiHandle< T >.

Definition at line 222 of file ToolHandle.h.

   {
     return m_pToolSvc->releaseTool( this->nonConst(algTool) );
   }

template<class T>

StatusCode ToolHandle< T >::retrieve ( ) const

inline

Retrieve the AlgTool.

Release existing tool if needed. Function must be repeated here to avoid hiding the function retrieve( T*& )

Definition at line 204 of file ToolHandle.h.

                               { // not really const, because it updates m_pObject
     return GaudiHandle<T>::retrieve();
   }

template<class T>

StatusCode ToolHandle< T >::retrieve ( T *& algTool ) const

inlineoverridevirtual

Do the real retrieval of the AlgTool.

Implements GaudiHandle< T >.

Definition at line 215 of file ToolHandle.h.

                                                     {
     IAlgTool* iface = nullptr;
     algTool = i_retrieve(iface) ? dynamic_cast<T*>(iface) : nullptr;
     return algTool ? StatusCode::SUCCESS : StatusCode::FAILURE;
   }

template<class T>

std::string ToolHandle< T >::typeAndName ( ) const

inlineoverridevirtual

Implements BaseToolHandle.

Definition at line 227 of file ToolHandle.h.

                                          {
     return GaudiHandleBase::typeAndName();
   }

Friends And Related Function Documentation

template<class T>

friend class Algorithm

friend

Definition at line 118 of file ToolHandle.h.

template<class T>

friend class AlgTool

friend

Definition at line 119 of file ToolHandle.h.

template<class T>

friend class Service

friend

Definition at line 120 of file ToolHandle.h.

Member Data Documentation

template<class T>

ServiceHandle<IToolSvc> ToolHandle< T >::m_pToolSvc

mutableprivate

Definition at line 284 of file ToolHandle.h.

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

GaudiKernel/GaudiKernel/PropertyHolder.h
GaudiKernel/GaudiKernel/ToolHandle.h

Public Member Functions

Protected Member Functions

Private Attributes

Friends

Additional Inherited Members

Detailed Description

template<class T> class ToolHandle< T >

Constructor & Destructor Documentation

Member Function Documentation

Friends And Related Function Documentation

Member Data Documentation

template<class T>
class ToolHandle< T >