Represents an iterator for a container by implementing the IIterator interface. More...

Inheritance diagram for Iterator< TItemType >:

Collaboration diagram for Iterator< TItemType >:

Public Member Functions
	Iterator (TItemType[] items)
	Constructor.

TItemType?	Next ()
	Returns the next item in the iteration or null, if there are no more items.

void	Reset ()
	Reset the iterator to the beginning.

void	Reset ()
	Start iteration from beginning of container.

TItemType?	Next ()
	Retrieve the next item from the container.

Private Attributes
TItemType[]	_items
	The array of items to iterate over.

int	_index
	The index into the _items array to the next item.

Detailed Description

Represents an iterator for a container by implementing the IIterator interface.

This class retains a copy of the elements to be iterated over so it is immune to changes in the container from which this iterator was generated.

Template Parameters

TItemType The type of each item provided by the iterator

This iterator is immune to changes in the source container. However, that makes this iterator expensive because the items being iterated over have to be duplicated in this class.

One alternative is for there to be only a single iterator and that iterator is implemented on the container class itself. If there are more than one type of iterator (as in this example) then the source container would have to implement multiple iterators, one for each type of item returned from the iterator.

Another alternative is for this iterator class to have a way to access the source container's data so the data doesn't have to be copied.

Definition at line 90 of file IteratorContainer_Class.cs.