SingleElementSet< Type > Class Template Reference

Represents a set containing a single element;. More...

#include <SingleElementSet.h>

Public Member Functions
	SingleElementSet (Type element)
	Constructor.
template<class VariableType >
bool	contains (const VariableType &x) const
	Method used by the filter tools to decide on the fate of the pair.
void	persist (TTree *t, const std::string &branchName, const std::string &variableName)
	Creates and sets the addresses of the leaves to store the min and max values.
Type	getElement (void) const
	Accessor to the sup of the set.
std::string	getNameAndReference (std::vector< std::pair< char, void * > > *pointers=nullptr, const std::string &varname="x")
	generates a "name" and fills the vector with the variable references

Private Attributes
Type	m_element
	Member variable for the single element of the set.

Detailed Description

template<typename Type>
class Belle2::SingleElementSet< Type >

Represents a set containing a single element;.

SingleElementSet is used in conjunction with the SelectionVariable to define one of the building blocks of the Filters

Definition at line 27 of file SingleElementSet.h.

Constructor & Destructor Documentation

SingleElementSet()

SingleElementSet ( Type  element )

inlineexplicit

Constructor.

Definition at line 32 of file SingleElementSet.h.

:  m_element(element) {};

Member Function Documentation

contains()

bool contains ( const VariableType &  x ) const

inline

Method used by the filter tools to decide on the fate of the pair.

Parameters

x	is the result of some SelectionVariable applied to a pair of objects. The return value is true if x belongs to the open set ( -infinity, m_sup )

Definition at line 40 of file SingleElementSet.h.

{ return x == m_element;};

getElement()

Type getElement ( void  ) const

inline

Accessor to the sup of the set.

Definition at line 64 of file SingleElementSet.h.

{ return m_element; } ;

getNameAndReference()

std::string getNameAndReference ( std::vector< std::pair< char, void * > > *  pointers = nullptr, const std::string &  varname = "x"  )

inline

generates a "name" and fills the vector with the variable references

Parameters

pointers	pointer to vector which contains a pair of char which indicates the type object pointed to and the actual pointers to the bounds, if equal to nullptr it will not be filled
varname	optional name of the filter this range is attached to make the output look nicer

Definition at line 71 of file SingleElementSet.h.

    {
      std::string val = std::to_string(m_element);
      // if pointer to vector is provided fill it
      if (pointers != nullptr) {
        // use the position in the vector as unique identifier
        val = "#" + std::to_string(pointers->size());
        (*pointers).push_back({TBranchLeafType(m_element), &m_element});
      }
      return ("(" + val + " == " + varname + ")");
    }

persist()

void persist ( TTree *  t, const std::string &  branchName, const std::string &  variableName  )

inline

Creates and sets the addresses of the leaves to store the min and max values.

Parameters

t	the pointer to the TTree that will contain the TBranch of this range.
branchName	the name of the TBranch that will host this range.
variableName	the name of the selection variable this range is applied to.

The leaves will be named as the selection variable name with the "_sup" suffixes for the m_sup value.

Definition at line 51 of file SingleElementSet.h.

    {
 
      std::string leafList;
      leafList += variableName;
      leafList += "_sup/";
      leafList += TBranchLeafType(m_element);
 
      TBranch* branch = new TBranch(t, branchName.c_str(), & m_element, leafList.c_str());
      t->GetListOfBranches()->Add(branch);
    }

Member Data Documentation

m_element

Type m_element

private

Member variable for the single element of the set.

Definition at line 29 of file SingleElementSet.h.

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

• tracking/trackFindingVXD/filterMap/filterFramework/include/SingleElementSet.h