GaudiPython.GaudiAlgs.TupleAlgo Class Reference

The base class for easy manupulations with N-Tuples. More...

Inheritance diagram for GaudiPython.GaudiAlgs.TupleAlgo:

Collaboration diagram for GaudiPython.GaudiAlgs.TupleAlgo:

Additional Inherited Members
Public Member Functions inherited from GaudiPython.Bindings.iAlgorithm
def	__init__
def	retrieveInterface
Static Public Attributes inherited from GaudiPython.Bindings.iAlgorithm
tuple	initialize lambdaself:self.__call_interface_method__("_ialg","initialize")
tuple	start lambdaself:self.__call_interface_method__("_ialg","start")
tuple	execute lambdaself:self.__call_interface_method__("_ialg","execute")
tuple	stop lambdaself:self.__call_interface_method__("_ialg","stop")
tuple	finalize lambdaself:self.__call_interface_method__("_ialg","finalize")
tuple	reinitialize lambdaself:self.__call_interface_method__("_ialg","reinitialize")
tuple	restart lambdaself:self.__call_interface_method__("_ialg","restart")
tuple	sysInitialize lambdaself:self.__call_interface_method__("_ialg","sysInitialize")
tuple	sysStart lambdaself:self.__call_interface_method__("_ialg","sysStart")
tuple	sysExecute lambdaself:self.__call_interface_method__("_ialg","sysExecute")
tuple	sysStop lambdaself:self.__call_interface_method__("_ialg","sysStop")
tuple	sysFinalize lambdaself:self.__call_interface_method__("_ialg","sysFinalize")
tuple	sysReinitialize lambdaself:self.__call_interface_method__("_ialg","sysReinitialize")
tuple	sysRestart lambdaself:self.__call_interface_method__("_ialg","sysRestart")

Detailed Description

The base class for easy manupulations with N-Tuples.

*******************************************************************************
*                                                * 'Physisics do not like it, *
*                                                *  physisics do not need it, *
*                                                *  physisics do not use  it' *
*                                                * ****************************
*  Usage:                                                                     *
*                                                                             *
*  from GaudiPython.GaudiAlgs import TupleAlgo, SUCCESS                       *
*                                                                             *
*  class MyClass(TupleAlgo) :                                                 *
*       ' My specific Algorithm, derived from TupleAlgo base class '          *
*       def __init__( self , name , **args ) :                                *
*            'Constructor from algorithm instance name & parameters'          *
*             #invoke the constructor of base class                           *
*             TupleAlgo.__init__(self , name , **args )                       *
*                                                                             *
*       def execute ( self ) :                                                *
*            'Major method (from IAlgorithm interface)'                       *
*                                                                             *
*           # get some data from Transient Event Store                        *
*           tracks = self.get('/Event/Rec/Tracks')                            *
*                                                                             *
*           tup = self.nTuple('My N-Tuple')                                   *
*                                                                             *
*           for track in tracks :                                             *
*                                                                             *
*                 pt   = track.pt   ()                                        *
*                 p    = track.p    ()                                        *
*                 chi2 = track.chi2 ()                                        *
*                                                                             *
*                 #fill N-tuple:                                              *
*                 tup.column ( 'pt'   ,  pt   )                               *
*                 tup.column ( 'p'    ,  p    )                               *
*                 tup.column ( 'chi2' ,  chi2 )                               *
*                 #commit the row                                             *
*                 tup.write  ()                                               *
*                                                                             *
*           return SUCCESS                                                    *
*                                                                             *
*******************************************************************************

Usage:

from GaudiPython.GaudiAlgs import TupleAlgo, SUCCESS

class MyClass(TupleAlgo) :
     ' My specific Algorithm, derived from TupleAlgo base class '
     def __init__( self , name , **args ) :
          'Constructor from algorithm instance name& parameters'
           #invoke the constructor of base class
           TupleAlgo.__init__(self , name , **args )

     def execute ( self ) :
          'Major method (from IAlgorithm interface)'

         # get some data from Transient Event Store
         tracks = self.get('/Event/Rec/Tracks')

         tup = self.nTuple('My N-Tuple')

         for track in tracks :

               pt   = track.pt   ()
               p    = track.p    ()
               chi2 = track.chi2 ()

               #fill N-tuple:
               tup.column ( 'pt'   ,  pt   )
               tup.column ( 'p'    ,  p    )
               tup.column ( 'chi2' ,  chi2 )
               #commit the row
               tup.write  ()

         return SUCCESS

See Also

GaudiTupleAlg

Author

Vanya BELYAEV ibely.nosp@m.aev@.nosp@m.physi.nosp@m.cs.s.nosp@m.yr.ed.nosp@m.u

Date

2006-11-26

Definition at line 787 of file GaudiAlgs.py.

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

• /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v24r2/GaudiPython/python/GaudiPython/GaudiAlgs.py