| HepMC3 event record library
    | 
GenEvent I/O parsing and serialization for root files based on root TTree.
If HepMC was compiled with path to ROOT available, this class can be used for root file I/O in the same manner as with HepMC::ReaderAscii class.
Definition at line 35 of file ReaderRootTree.h.
#include <ReaderRootTree.h>
 Inheritance diagram for ReaderRootTree:
 Inheritance diagram for ReaderRootTree: Collaboration diagram for ReaderRootTree:
 Collaboration diagram for ReaderRootTree:| Public Member Functions | |
| ReaderRootTree (const std::string &filename) | |
| Default constructor. | |
| ReaderRootTree (const std::string &filename, const std::string &treename, const std::string &branchname) | |
| Constructor with tree name. | |
| bool | skip (const int) override | 
| skip events | |
| bool | read_event (GenEvent &evt) override | 
| Read event from file. | |
| void | close () override | 
| Close file. | |
| bool | failed () override | 
| Get file error state. | |
| virtual std::shared_ptr< GenRunInfo > | run_info () const | 
| Get the global GenRunInfo object. | |
| virtual void | set_options (const std::map< std::string, std::string > &options) | 
| Set options. | |
| virtual std::map< std::string, std::string > | get_options () const | 
| Get options. | |
| virtual void | set_run_info (std::shared_ptr< GenRunInfo > run) | 
| Set the global GenRunInfo object. | |
| Data Fields | |
| TTree * | m_tree | 
| Tree handler. Public to allow simple access, e.g. custom branches. | |
| Protected Attributes | |
| std::map< std::string, std::string > | m_options | 
| Options. | |
| Private Member Functions | |
| bool | init () | 
| init routine | |
| Private Attributes | |
| TFile * | m_file | 
| File handler. | |
| int | m_events_count | 
| Events count. Needed to read the tree. | |
| GenEventData * | m_event_data | 
| Pointer to structure that holds event data. | |
| GenRunInfoData * | m_run_info_data | 
| Pointer to structure that holds run info data. | |
| std::string | m_tree_name | 
| Name of TTree. | |
| std::string | m_branch_name | 
| Name of TBranch in TTree. | |
| std::shared_ptr< GenRunInfo > | m_run_info | 
| The global GenRunInfo object. | |
| ReaderRootTree | ( | const std::string & | filename | ) | 
Default constructor.
Definition at line 18 of file ReaderRootTree.cc.
References init(), m_branch_name, m_events_count, m_file, m_tree, m_tree_name, and ReaderRootTree().
| ReaderRootTree | ( | const std::string & | filename, | 
| const std::string & | treename, | ||
| const std::string & | branchname ) | 
Constructor with tree name.
Definition at line 26 of file ReaderRootTree.cc.
References init(), m_branch_name, m_events_count, m_file, m_tree, and m_tree_name.
| 
 | overridevirtual | 
| 
 | overridevirtual | 
Get file error state.
Implements Reader.
Definition at line 117 of file ReaderRootTree.cc.
References m_events_count, m_file, and m_tree.
| 
 | inlinevirtualinherited | 
Get options.
Reimplemented in ReaderPlugin.
Definition at line 53 of file Reader.h.
References m_options.
| 
 | private | 
init routine
Definition at line 33 of file ReaderRootTree.cc.
References HEPMC3_ERROR, HEPMC3_WARNING, m_branch_name, m_event_data, m_file, m_run_info_data, m_tree, m_tree_name, and Reader::set_run_info().
| 
 | overridevirtual | 
Read event from file.
| [out] | evt | Contains parsed event | 
Implements Reader.
Definition at line 84 of file ReaderRootTree.cc.
References m_event_data, m_events_count, m_run_info_data, m_tree, GenEvent::read_data(), Reader::run_info(), and GenEvent::set_run_info().
| 
 | inlinevirtualinherited | 
Get the global GenRunInfo object.
Reimplemented in ReaderPlugin.
Definition at line 44 of file Reader.h.
References m_run_info.
| 
 | inlinevirtualinherited | 
Set options.
Reimplemented in ReaderPlugin.
Definition at line 51 of file Reader.h.
References m_options.
| 
 | inlinevirtualinherited | 
Set the global GenRunInfo object.
Reimplemented in ReaderPlugin.
Definition at line 56 of file Reader.h.
References m_run_info.
| 
 | overridevirtual | 
skip events
Reimplemented from Reader.
Definition at line 76 of file ReaderRootTree.cc.
References m_events_count, and m_tree.
| 
 | private | 
Name of TBranch in TTree.
Definition at line 80 of file ReaderRootTree.h.
| 
 | private | 
Pointer to structure that holds event data.
Definition at line 77 of file ReaderRootTree.h.
| 
 | private | 
Events count. Needed to read the tree.
Definition at line 76 of file ReaderRootTree.h.
| 
 | private | 
File handler.
Definition at line 72 of file ReaderRootTree.h.
| 
 | protectedinherited | 
| 
 | privateinherited | 
The global GenRunInfo object.
| 
 | private | 
Pointer to structure that holds run info data.
Definition at line 78 of file ReaderRootTree.h.
| TTree* m_tree | 
Tree handler. Public to allow simple access, e.g. custom branches.
Definition at line 74 of file ReaderRootTree.h.
| 
 | private | 
Name of TTree.
Definition at line 79 of file ReaderRootTree.h.