jm::Iterator Class Reference

The abstract class Iterator is used to provide an interface with which one can conveniently iterate through a list or array. It depends on the implementation which data is obtained. More...

Inheritance diagram for jm::Iterator:

Public Member Functions
virtual bool	hasNext () noexcept=0
	This method checks if the list contains another element.
virtual Object *	next () noexcept=0
	This method iterates to the next element in the list and returns it.
virtual	~Iterator () noexcept=default

Detailed Description

The abstract class Iterator is used to provide an interface with which one can conveniently iterate through a list or array. It depends on the implementation which data is obtained.

Note

With initialisation of the list, the pointer to the elements precedes the first element, so that the first call to next() actually returns the first element.

Constructor & Destructor Documentation

~Iterator()

virtual jm::Iterator::~Iterator ( )

virtualdefaultnoexcept

Member Function Documentation

hasNext()

virtual bool jm::Iterator::hasNext ( )

pure virtualnoexcept

This method checks if the list contains another element.

Returns

"true" if there is at least one more element in the list, otherwise "false".

Implemented in jm::LinkedListIterator.

next()

virtual Object * jm::Iterator::next ( )

pure virtualnoexcept

This method iterates to the next element in the list and returns it.

Returns

A pointer to the next element in the list. Returns nullptr, if end if list reached

Implemented in jm::LinkedListIterator.