Class Poco::Data::RowIterator

File Information

Library: Data
Package: DataCore
Header: Poco/Data/RowIterator.h

Description

RowIterator class.

Member Summary

Member Functions: operator !=, operator *, operator +, operator ++, operator -, operator --, operator =, operator ==, operator->, swap

Types Aliases

difference_type

using difference_type = std::ptrdiff_t;

iterator_category

using iterator_category = std::bidirectional_iterator_tag;

pointer

using pointer = Row *;

reference

using reference = Row &;

value_type

using value_type = Row;

Constructors

RowIterator

RowIterator(
const RowIterator & other
);

Creates a copy of other RowIterator.

RowIterator

RowIterator(
RowIterator && other
) noexcept;

Move constructor.

RowIterator

RowIterator(
RecordSet * pRecordSet,
bool positionEnd
);

Creates the RowIterator and positions it at the end of the recordset if positionEnd is true. Otherwise, it is positioned at the beginning.

Destructor

~RowIterator

~RowIterator();

Destroys the RowIterator.

Member Functions

operator !=

bool operator != (
const RowIterator & other
) const;

Inequality operator.

operator *

Row & operator * () const;

Returns reference to the current row.

operator +

RowIterator operator + (
std::size_t diff
) const;

Returns a copy the RowIterator advanced by diff positions.

operator ++

const RowIterator & operator ++ () const;

Advances by one position and returns current position.

operator ++

RowIterator operator ++ (
int
) const;

Advances by one position and returns copy of the iterator with previous current position.

operator -

RowIterator operator - (
std::size_t diff
) const;

Returns a copy the RowIterator backed by diff positions. Throws RangeException if diff is larger than current position.

operator --

const RowIterator & operator -- () const;

Goes back by one position and returns copy of the iterator with previous current position.

operator --

RowIterator operator -- (
int
) const;

Goes back by one position and returns previous current position.

operator =

RowIterator & operator = (
const RowIterator & other
);

Assigns the other RowIterator.

operator =

RowIterator & operator = (
RowIterator && other
) noexcept;

Move assignment.

operator ==

bool operator == (
const RowIterator & other
) const;

Equality operator.

operator->

Row * operator-> () const;

Returns pointer to the current row.

swap

void swap(
RowIterator & other
);

Swaps the RowIterator with another one.

Variables

POSITION_END

static const std::size_t POSITION_END;

End position indicator.