TreeFrogFramework: src/tsqlormapperiterator.h Source File

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1#pragma once

2#include <TSqlORMapper>

5template <class T>

7public:

9 m(&mapper), i(0), n(m->rowCount()) { }

11 bool hasNext() const { return i >= 0 && i < m->rowCount(); }

12 bool hasPrevious() const { return i > 0 && i <= m->rowCount(); }

14 {

15 n = i++;

16 return m->value(n);

17 }

19 {

20 n = --i;

21 return m->value(n);

22 }

23 void toBack() { i = n = m->rowCount(); }

25 {

26 i = 0;

27 n = m->rowCount();

28 }

29 T value() const { return m->value(n); }

31private:

36 int i, n;

37};

The TSqlORMapperIterator class provides a Java-style iterator for TSqlORMapper.

Definition tsqlormapperiterator.h:6

T next()

Returns the next object and advances the iterator by one position.

Definition tsqlormapperiterator.h:13

T value() const

Returns the current object and does not move the iterator.

Definition tsqlormapperiterator.h:29

TSqlORMapperIterator(const TSqlORMapper< T > &mapper)

Constructor.

Definition tsqlormapperiterator.h:8

bool hasNext() const

Returns true if there is at least one object ahead of the iterator; otherwise returns false.

Definition tsqlormapperiterator.h:11

void toFront()

Moves the iterator to the front of the results (before the first object).

Definition tsqlormapperiterator.h:24

T previous()

Returns the previous object and moves the iterator back by one position.

Definition tsqlormapperiterator.h:18

void toBack()

Moves the iterator to the back of the results (after the last object).

Definition tsqlormapperiterator.h:23

bool hasPrevious() const

Returns true if there is at least one object behind the iterator; otherwise returns false.

Definition tsqlormapperiterator.h:12

The TSqlORMapper class is a template class that provides concise functionality to object-relational m...

Definition tsqlormapper.h:53