IToolSvc::Observer Class Reference

allow call-backs when a tool is a created or retrieved More...

#include <GaudiKernel/IToolSvc.h>

Collaboration diagram for IToolSvc::Observer:

Public Member Functions
virtual	~Observer ()
void	setUnregister (std::function< void()> unregister)
virtual void	onCreate (const IAlgTool *)
virtual void	onRetrieve (const IAlgTool *)

Private Attributes
std::function< void()>	m_unregister

Detailed Description

allow call-backs when a tool is a created or retrieved

class myObserver : public ITooSvc::Observer {
     void onCreate(IAlgTool& tool) {
         cout << "tool " << tool.name() << " created " << endl;
     }
     void onRetrieve(IAlgTool& tool) {
         cout << "someone requested " << tool.name() <<endl;
     }

}

myObserver *observer = new myObserver;
IToolSvc* svc = ...
svc->registerObserver(observer);

IToolSvc implementations will call 'Observer::onCreate' when a tool is created, and 'Observer::onRetrieve' if a tool is retrieved.

The user is responsible of the life time of the object and must un-register it before it is deleted (e.g. during the finalization).

Definition at line 231 of file IToolSvc.h.

Constructor & Destructor Documentation

~Observer()

virtual IToolSvc::Observer::~Observer ( )

inlinevirtual

Definition at line 233 of file IToolSvc.h.

                        {
      if ( m_unregister ) m_unregister();
    }

Member Function Documentation

onCreate()

virtual void IToolSvc::Observer::onCreate ( const IAlgTool *  )

inlinevirtual

Definition at line 238 of file IToolSvc.h.

{}

onRetrieve()

virtual void IToolSvc::Observer::onRetrieve ( const IAlgTool *  )

inlinevirtual

Definition at line 239 of file IToolSvc.h.

{}

setUnregister()

void IToolSvc::Observer::setUnregister ( std::function< void()>  unregister )

inline

Definition at line 236 of file IToolSvc.h.

{ m_unregister = std::move( unregister ); }

Member Data Documentation

m_unregister

std::function<void()> IToolSvc::Observer::m_unregister

private

Definition at line 242 of file IToolSvc.h.

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

• GaudiKernel/GaudiKernel/IToolSvc.h