| # Gaudi Framework, version v21r6 |

Home |  | Generated: 11 Nov 2009

# Gaudi::Utils::AlgContext Class Reference

`#include <IAlgContextSvc.h>`

Collaboration diagram for Gaudi::Utils::AlgContext:

[legend]

List of all members.

## Detailed Description

Helper "sentry" class to automatize the safe register/unregister the algorithm's context.

Typical explicit usage:

       StatusCode MyAlg::execute()
        {
           IAlgContextSvc* acs = ... ;
           // define the context
           Gaudi::Utils::AlgContext sentry ( this , acs ) ;

           ...

           return StatusCode::SUCCESS ;
        }

Note: for the regular job the context is properly defined with the help of corresponding auditor AlgContextAuditor. This helper class is needed only if one needs to ensure that the algorithm must register its context independently on job/auditor configuration

See also:
  AlgContextAuditor

Author:
  Vanya BELYAEV ibelyaev@phys.syr.edu

Date:
  2007-03-07

Definition at line 84 of file IAlgContextSvc.h.

## Public Member Functions
| AlgContext (IAlgContextSvc *svc, IAlgorithm *alg)
| constructor from the service and the algorithm Internally invokes IAlgContextSvc::setCurrentAlg
| AlgContext (IAlgorithm *alg, IAlgContextSvc *svc)
| constructor from the algorithm and the service Internally invokes IAlgContextSvc::setCurrentAlg
| ~AlgContext ()
| destructor Internally invokes IAlgContextSvc::unSetCurrentAlg
## Private Member Functions
| AlgContext ()
| no default constructor!
| AlgContext (const AlgContext &right)
| no copy!
AlgContext & | operator= (const AlgContext &right)
| no assignement!
## Private Attributes
IAlgContextSvc * | m_svc
IAlgorithm * | m_alg

## Constructor & Destructor Documentation

Gaudi::Utils::AlgContext::AlgContext | ( | IAlgContextSvc * | svc,
|  | IAlgorithm * | alg |
| ) |  |  |

constructor from the service and the algorithm Internally invokes IAlgContextSvc::setCurrentAlg

See also:
  IAlgorithm

  IAlgContextSvc

Parameters:

  | svc | pointer to algorithm context service
  | alg | pointer to the current algorithm

Definition at line 42 of file AlgContext.cpp.

    00044   : m_svc ( svc )
    00045   , m_alg ( alg )
    00046 {
    00047   if ( 0 != m_alg ) { m_alg -> addRef() ; }
    00048   if ( 0 != m_svc ) { m_svc -> addRef() ; }
    00049   if ( 0 != m_svc && 0 != m_alg ) { m_svc->setCurrentAlg ( m_alg ).ignore() ; }
    00050 }

Gaudi::Utils::AlgContext::AlgContext | ( | IAlgorithm * | alg,
|  | IAlgContextSvc * | svc |
| ) |  |  |

constructor from the algorithm and the service Internally invokes IAlgContextSvc::setCurrentAlg

See also:
  IAlgorithm

  IAlgContextSvc

Parameters:

  | alg | pointer to the current algorithm
  | svc | pointer to algorithm context service

Definition at line 61 of file AlgContext.cpp.

    00063   : m_svc ( svc )
    00064   , m_alg ( alg )
    00065 {
    00066   if ( 0 != m_alg ) { m_alg -> addRef() ; }
    00067   if ( 0 != m_svc ) { m_svc -> addRef() ; }
    00068   if ( 0 != m_svc && 0 != m_alg ) { m_svc->setCurrentAlg ( m_alg ).ignore() ; }
    00069 }

Gaudi::Utils::AlgContext::~AlgContext | ( |  | ) |

destructor Internally invokes IAlgContextSvc::unSetCurrentAlg

See also:
  IAlgorithm

  IAlgContextSvc

Definition at line 77 of file AlgContext.cpp.

    00078 {
    00079   if ( 0 != m_svc && 0 != m_alg )
    00080   { m_svc->unSetCurrentAlg ( m_alg ).ignore() ; }
    00081   if ( 0 != m_svc ) { m_svc -> release () ; m_svc = 0 ; }
    00082   if ( 0 != m_alg ) { m_alg -> release () ; m_alg = 0 ; }
    00083 }

Gaudi::Utils::AlgContext::AlgContext | ( |  | ) | `[private]`

no default constructor!

Gaudi::Utils::AlgContext::AlgContext | ( | const AlgContext & | right | ) | `[private]`

no copy!

## Member Function Documentation

AlgContext& Gaudi::Utils::AlgContext::operator= | ( | const AlgContext & | right | ) | `[private]`

no assignement!

## Member Data Documentation

IAlgContextSvc* Gaudi::Utils::AlgContext::m_svc`[private]`

Definition at line 121 of file IAlgContextSvc.h.

IAlgorithm* Gaudi::Utils::AlgContext::m_alg`[private]`

Definition at line 122 of file IAlgContextSvc.h.

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r6/GaudiKernel/GaudiKernel/IAlgContextSvc.h
- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v21r6/GaudiKernel/src/Lib/AlgContext.cpp