RWOrderedIterator Class Reference

Traverses the collection from the first to the last item. More...

#include <rw/ordcltn.h>

Inheritance diagram for RWOrderedIterator:

Public Member Functions
	RWOrderedIterator (const RWOrdered &ord)
virtual RWCollectable *	findNext (const RWCollectable *target)
virtual RWCollectable *	key () const
virtual RWCollectable *	operator() ()
virtual void	reset ()

Detailed Description

Iterator for class RWOrdered. Traverses the collection from the first to the last item. Like all Rogue Wave iterators, the "current item" is undefined immediately after construction – you must define it by using operator()() or some other (valid) operation.

Once the iterator has advanced beyond the end of the collection it is no longer valid – continuing to use it brings undefined results.

Synopsis

#include <rw/ordcltn.h>
RWOrdered a ;
RWOrderedIterator iter(a);

Persistence

None

Constructor & Destructor Documentation

RWOrderedIterator::RWOrderedIterator ( const RWOrdered &  ord )

inline

Constructs an RWOrderedIterator from an RWOrdered collection. Immediately after construction the position of the iterator is undefined.

Member Function Documentation

virtual RWCollectable* RWOrderedIterator::findNext ( const RWCollectable *  target )

virtual

Moves the iterator to the next item which isEqual() to the item pointed to by target and returns it. If no item is found, returns rwnil and the position of the iterator is undefined.

Implements RWIterator.

virtual RWCollectable* RWOrderedIterator::key ( ) const

virtual

Returns the item at the current iterator position.

Implements RWIterator.

virtual RWCollectable* RWOrderedIterator::operator() ( )

virtual

Advances the iterator and returns the next item, or rwnil if the end of the collection has been reached.

Implements RWIterator.

virtual void RWOrderedIterator::reset ( )

inlinevirtual

Resets the iterator to the state it had immediately after construction.

Implements RWIterator.