Gabriele Cosmo
77 lines
1.7 KiB
Plaintext
77 lines
1.7 KiB
Plaintext
// Copyright (C) 2010, Guy Barrand. All rights reserved.
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// See the file tools.license for terms.
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#ifndef tools_ntuple_binding
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#define tools_ntuple_binding
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// a little class to capture column binding parameters
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// when reading an ntuple.
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#include <string>
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#include <vector>
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#include "forit"
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namespace tools {
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class column_binding {
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public:
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column_binding(const std::string& a_name,void* a_user_obj)
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:m_name(a_name)
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,m_user_obj(a_user_obj) //WARNING : not owner.
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{}
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virtual ~column_binding() {}
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public:
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column_binding(const column_binding& a_from)
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:m_name(a_from.m_name)
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,m_user_obj(a_from.m_user_obj)
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{}
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column_binding& operator=(const column_binding& a_from) {
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if(&a_from==this) return *this;
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m_name = a_from.m_name;
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m_user_obj = a_from.m_user_obj;
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return *this;
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}
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public:
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const std::string& name() const {return m_name;}
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void* user_obj() const {return m_user_obj;}
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protected:
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std::string m_name;
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void* m_user_obj;
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};
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class ntuple_binding {
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public:
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ntuple_binding()
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{}
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virtual ~ntuple_binding(){}
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public:
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ntuple_binding(const ntuple_binding& a_from)
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:m_columns(a_from.m_columns)
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{}
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ntuple_binding& operator=(const ntuple_binding& a_from){
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m_columns = a_from.m_columns;
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return *this;
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}
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public:
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template <class T>
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void add_column(const std::string& a_name,T& a_user_var) {
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m_columns.push_back(column_binding(a_name,(void*)&a_user_var));
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}
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const std::vector<column_binding>& columns() const {return m_columns;}
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template <class T>
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T* find_variable(const std::string& a_name) const {
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tools_vforcit(column_binding,m_columns,it) {
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if((*it).name()==a_name) return (T*)((*it).user_obj());
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}
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return 0;
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}
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protected:
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std::vector<column_binding> m_columns;
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};
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}
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#endif
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