Auxiliary class to read objects with ROOT dictionary from ASCII formatted file. More...

#include <JASCIIFileStreamer.hh>

Inheritance diagram for JROOT::JASCIIFileReader< T >:

Public Member Functions
	JASCIIFileReader (const JRootDictionary &dictionary=JRootDictionary::getInstance())
	Constructor. More...

	JASCIIFileReader (const char *const file_name, const JRootDictionary &dictionary=JRootDictionary::getInstance())
	Constructor. More...

JASCIIFileReader &	operator>> (T &object)
	Read object from this file. More...

Private Attributes
T	object
	internal value More...

T	value
	default value More...

std::vector < JROOT::JRootReadableClass >	columns
	column count -> data member More...

JRootReader	reader

Detailed Description

template<class T>
struct JROOT::JASCIIFileReader< T >

Auxiliary class to read objects with ROOT dictionary from ASCII formatted file.

The names of in the first line are one-to-one mapped to the names of the data members of the corresponding data structure using the corresponding ROOT dictionary.

Definition at line 33 of file JASCIIFileStreamer.hh.

Constructor & Destructor Documentation

template<class T >

JROOT::JASCIIFileReader< T >::JASCIIFileReader ( const JRootDictionary & dictionary = JRootDictionary::getInstance() )

inline

Constructor.

Parameters

dictionary dictionary

Definition at line 43 of file JASCIIFileStreamer.hh.

                                                                                        :
       reader(static_cast<std::istream&>(*this), JLANG::JEquationParameters(), dictionary)
     {}

template<class T >

JROOT::JASCIIFileReader< T >::JASCIIFileReader	(	const char *const	file_name,
		const JRootDictionary &	dictionary = `JRootDictionary::getInstance()`
	)

inline

Constructor.

Parameters

file_name	file name
dictionary	dictionary

Definition at line 54 of file JASCIIFileStreamer.hh.

                                                                                        :
       reader(static_cast<std::istream&>(*this), JLANG::JEquationParameters(), dictionary)
     {
       this->open(file_name);
     }

Member Function Documentation

template<class T >

JASCIIFileReader& JROOT::JASCIIFileReader< T >::operator>> ( T & object )

inline

Read object from this file.

Parameters

object object

Returns: this input stream

Definition at line 68 of file JASCIIFileStreamer.hh.

     {
       using namespace std;
       using namespace JPP;
 
       if (columns.empty()) {
 
         JRootReadableClass cls(this->object);
 
         string buffer;
 
         if (std::getline(*this, buffer)) {
 
           istringstream is(buffer);
             
           while (is >> buffer) {
             columns.push_back(cls.find(buffer.c_str()));
           }
         }
       }
 
       object = value;
 
       reader.flags(this->flags());
 
       string buffer;
 
       if (std::getline(*this, buffer)) {
 
         istringstream is(buffer);
 
         for (size_t i = 0; i != columns.size() && is >> buffer; ++i) {
 
           if (columns[i].is_valid()) {     
 
             JRedirectString redirect(reader, buffer);
       
             reader.getObject(columns[i]);
           }
         }
 
         object = this->object;
       }
 
       return *this;
     }