ObjectStatement< ObjectType, Columns >::iterator Class Reference

Iterator class to allow iterating over the rows. More...

#include <sqlite.h>

Collaboration diagram for ObjectStatement< ObjectType, Columns >::iterator:

Public Types
using	iterator_category = std::input_iterator_tag
	Iterator category.
using	value_type = ObjectType
	Value type.
using	difference_type = size_t
	Difference type.
using	pointer = value_type *
	Pointer.
using	reference = value_type &
	Reference.

Public Member Functions
	iterator ()=default
	with a default constructor
	iterator (ObjectStatement *instance)
	and a real constructor to a statement
iterator &	operator++ ()
	increment to next row, stop in case we are done
iterator	operator++ (int)
	also postfix increment
bool	operator== (const iterator &other) const
	and equality check
bool	operator!= (const iterator &other) const
	as well as inequality check
value_type	operator* () const
	and a dereference operator

Private Attributes
ObjectStatement *	m_instance {nullptr}
	pointer to the statement
int64_t	m_row { -1}
	current row index

Detailed Description

template<class ObjectType, class ... Columns>
class sqlite::ObjectStatement< ObjectType, Columns >::iterator

Iterator class to allow iterating over the rows.

Definition at line 200 of file sqlite.h.

Member Typedef Documentation

difference_type

using difference_type = size_t

Difference type.

Definition at line 210 of file sqlite.h.

iterator_category

using iterator_category = std::input_iterator_tag

Iterator category.

Definition at line 204 of file sqlite.h.

pointer

using pointer = value_type*

Pointer.

Definition at line 213 of file sqlite.h.

reference

using reference = value_type&

Reference.

Definition at line 216 of file sqlite.h.

value_type

using value_type = ObjectType

Value type.

Definition at line 207 of file sqlite.h.

Constructor & Destructor Documentation

iterator()

iterator ( ObjectStatement *  instance )

inlineexplicit

and a real constructor to a statement

Definition at line 221 of file sqlite.h.

                                                  : m_instance(instance), m_row{0}
      {
        (*this)++;
      }

Member Function Documentation

operator!=()

bool operator!= ( const iterator &  other ) const

inline

as well as inequality check

Definition at line 238 of file sqlite.h.

{ return m_row != other.m_row; }

operator*()

value_type operator* ( ) const

inline

and a dereference operator

Definition at line 240 of file sqlite.h.

{ return m_instance->getRow(); }

operator++() [1/2]

iterator & operator++ ( )

inline

increment to next row, stop in case we are done

Definition at line 226 of file sqlite.h.

      {
        if (m_row < 0) return *this;
        ++m_row;
        if (!m_instance->step()) m_row = -1;
        return *this;
      }

operator++() [2/2]

iterator operator++ ( int  )

inline

also postfix increment

Definition at line 234 of file sqlite.h.

{iterator retval = *this; ++(*this); return retval;}

operator==()

bool operator== ( const iterator &  other ) const

inline

and equality check

Definition at line 236 of file sqlite.h.

{ return m_row == other.m_row; }

Member Data Documentation

m_instance

ObjectStatement* m_instance {nullptr}

private

pointer to the statement

Definition at line 243 of file sqlite.h.

m_row

int64_t m_row { -1}

private

current row index

Definition at line 245 of file sqlite.h.

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

• framework/utilities/include/sqlite.h