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MultiHead Struct Reference

#include <MultiHead.hh>

Inheritance diagram for MultiHead:
std::vector< Head > TObject

Public Member Functions

 MultiHead ()
 Default constructor. More...
 
virtual ~MultiHead ()
 Virtual destructor. More...
 
const Head & find (const uuid_t &uuid, const bool useCache=false) const
 Find header with given UUID. More...
 
const Head & find (const Evt &event, const bool useCache=false) const
 Find the header corresponding to the given event. More...
 
 ClassDef (MultiHead, 1)
 

Detailed Description

Author
bjung

Definition at line 18 of file MultiHead.hh.

Constructor & Destructor Documentation

MultiHead::MultiHead ( )
inline

Default constructor.

Definition at line 25 of file MultiHead.hh.

25  :
26  std::vector<Head>(),
27  TObject()
28  {}
TObject
Definition: JRoot.hh:19
virtual MultiHead::~MultiHead ( )
inlinevirtual

Virtual destructor.

Definition at line 34 of file MultiHead.hh.

35  {}

Member Function Documentation

const Head& MultiHead::find ( const uuid_t &  uuid,
const bool  useCache = false 
) const
inline

Find header with given UUID.


Note: The parameter useCache can be toggled on for faster lookup.
This should not be used if your MultiHead object is modified between look-ups.

Parameters
uuidheader UUID
useCacheuse caching for faster look-up
Returns
header with given UUID

Definition at line 48 of file MultiHead.hh.

50  {
51  using namespace std;
52 
53  static struct
54  {
55  size_t index;
56  uuid_t uuid;
57  } cache;
58 
59  if (!useCache) {
60 
61  for (cache.index = 0; cache.index < this->size(); ++cache.index) {
62 
63  const Head& head = (*this)[cache.index];
64  const string& uuid_str = head.at(Head::tags::UUID);
65 
66  uuid_parse(uuid_str.c_str(), cache.uuid);
67 
68  if (uuid_compare(uuid, cache.uuid)) {
69  return head;
70  }
71  }
72 
73  THROW(Exception, "MultiHead::find(const uuid_t&, const bool): Could not find header with UUID " << uuid);
74 
75  } else {
76 
77  if (uuid_compare(uuid, cache.uuid)) {
78  return this->at(cache.index);
79  } else {
80  return find(uuid, false);
81  }
82  }
83  }
Head::tags::UUID
static constexpr const char *const UUID
Definition: Head.hh:68
THROW
#define THROW(JException_t, A)
Marco for throwing exception with std::ostream compatible message.
Definition: JException.hh:696
this
then usage $script< detector file >< detectorfile > nIf the range of floors is the first detector file is aligned to the second before the comparison nIn this
Definition: JCompareDetector.sh:31
Head
The Head class reflects the header of Monte-Carlo event files, which consists of keys (also referred ...
Definition: Head.hh:65
Exception
General exception.
Definition: Exception.hh:13
MultiHead::find
const Head & find(const uuid_t &uuid, const bool useCache=false) const
Find header with given UUID.
Definition: MultiHead.hh:48
const Head& MultiHead::find ( const Evt &  event,
const bool  useCache = false 
) const
inline

Find the header corresponding to the given event.

Note: The parameter useCache can be toggled on for faster lookup.
This should not be used if your MultiHead object is modified between look-ups.

Parameters
eventevent
useCacheuse caching for faster look-up
Returns
header corresponding to the given event

Definition at line 95 of file MultiHead.hh.

97  {
98  return find(event.header_uuid, useCache);
99  }
Evt::header_uuid
uuid_t header_uuid
UUID of header containing the event-weight information.
Definition: Evt.hh:35
MultiHead::find
const Head & find(const uuid_t &uuid, const bool useCache=false) const
Find header with given UUID.
Definition: MultiHead.hh:48
MultiHead::ClassDef ( MultiHead  ,
1   
)
The documentation for this struct was generated from the following file:
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