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File indexing completed on 2025-02-21 10:00:34
0001 /***********************************************************************************\ 0002 * (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations * 0003 * * 0004 * This software is distributed under the terms of the Apache version 2 licence, * 0005 * copied verbatim in the file "LICENSE". * 0006 * * 0007 * In applying this licence, CERN does not waive the privileges and immunities * 0008 * granted to it by virtue of its status as an Intergovernmental Organization * 0009 * or submit itself to any jurisdiction. * 0010 \***********************************************************************************/ 0011 //==================================================================== 0012 // NTuple name space: Selector class definition 0013 //-------------------------------------------------------------------- 0014 // 0015 // Package : Gaudi/NTupleSvc ( The LHCb Offline System) 0016 // Author : M.Frank 0017 // 0018 // +---------+----------------------------------------------+--------+ 0019 // | Date | Comment | Who | 0020 // +---------+----------------------------------------------+--------+ 0021 // | 10/10/00| Initial version. | MF | 0022 // +---------+----------------------------------------------+--------+ 0023 //==================================================================== 0024 #ifndef GAUDI_NTUPLESVC_SELECTOR_H 0025 #define GAUDI_NTUPLESVC_SELECTOR_H 1 0026 0027 // Framework include files 0028 #include "GaudiKernel/SelectStatement.h" 0029 0030 // Forward declarations 0031 namespace NTuple { 0032 class Tuple; 0033 } 0034 0035 namespace NTuple { 0036 0037 /** NTuple Selector class. 0038 */ 0039 class GAUDI_API Selector : public SelectStatement { 0040 protected: 0041 /// reference to parent interface 0042 IInterface* m_parent; 0043 /// Boolean to indicate need for initialization 0044 bool m_firstCall; 0045 /// StatusCode indication initialization result 0046 StatusCode m_status; 0047 0048 public: 0049 /// Standard constructor 0050 Selector( IInterface* svc ) : m_parent( svc ), m_firstCall( true ) {} 0051 /// Standard Destructor 0052 virtual ~Selector() = default; 0053 /// Check for first call 0054 bool firstCall() const { return m_firstCall; } 0055 /// Access initialization status 0056 StatusCode initResult() const { return m_status; } 0057 /// Default callback from interface 0058 bool operator()( void* nt ) override; 0059 /// Specialized callback for NTuples 0060 virtual bool operator()( NTuple::Tuple* nt ); 0061 /// Selector Initialization 0062 virtual StatusCode initialize( NTuple::Tuple* nt ); 0063 }; 0064 } // namespace NTuple 0065 #endif // GAUDI_NTUPLESVC_SELECTOR_H
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