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<?php
/** @file iteratoriterator.inc
* @ingroup SPL
* @brief class IteratorIterator
* @author Marcus Boerger
* @date 2003 - 2005
*
* SPL - Standard PHP Library
*/
/** @ingroup SPL
* @brief Basic Iterator wrapper
*/
class IteratorIterator implements OuterIterator
{
/** Construct an IteratorIterator from an Iterator or an IteratorAggregate.
*
* Classes that only implement Traversable can be wrapped only after
* converting class IteratorIterator into c code.
*/
function __construct(Traversable $iterator)
{
if ($iterator instanceof IteratorAggregate)
{
$iterator = $iterator->getIterator();
}
if ($iterator instanceof Iterator)
{
$this->iterator = $iterator;
}
else
{
throw new Exception("Classes that only implement Traversable can be wrapped only after converting class IteratorItaerator into c code");
}
}
/** \return the inner iterator as passed to the constructor
*/
function getInnerIterator()
{
return $this->iterator;
}
/** \return whether the iterator is valid
*/
function valid()
{
return $this->iterator->valid();
}
/** \return current key
*/
function key()
{
return $this->iterator->key();
}
/** \return current value
*/
function current()
{
return $this->iterator->current();
}
/** forward to next element
*/
function next()
{
return $this->iterator->next();
}
/** rewind to the first element
*/
function rewind()
{
return $this->iterator->rewind();
}
/** Aggregate the inner iterator
*
* @param func Name of method to invoke
* @param params Array of parameters to pass to method
*/
function __call($func, $params)
{
return call_user_func_array(array($this->it, $func), $params);
}
/** The inner iterator must be private because when this class will be
* converted to c code it won't no longer be available.
*/
private $iterator;
}
?>
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