Location: PHPKode > projects > Nette Framework > NetteFramework-2.0beta-PHP5.2/Nette/Iterators/Recursor.php
<?php

/**
 * This file is part of the Nette Framework (http://nette.org)
 *
 * Copyright (c) 2004, 2011 David Grudl (http://davidgrudl.com)
 *
 * For the full copyright and license information, please view
 * the file license.txt that was distributed with this source code.
 * @package Nette\Iterators
 */







/**
 * Generic recursive iterator.
 *
 * @author     David Grudl
 */
class NGenericRecursiveIterator extends IteratorIterator implements RecursiveIterator, Countable
{

	/**
	 * Has the current element has children?
	 * @return bool
	 */
	public function hasChildren()
	{
		$obj = $this->current();
		return ($obj instanceof IteratorAggregate && $obj->getIterator() instanceof RecursiveIterator)
			|| $obj instanceof RecursiveIterator;
	}



	/**
	 * The sub-iterator for the current element.
	 * @return RecursiveIterator
	 */
	public function getChildren()
	{
		$obj = $this->current();
		return $obj instanceof IteratorAggregate ? $obj->getIterator() : $obj;
	}



	/**
	 * Returns the count of elements.
	 * @return int
	 */
	public function count()
	{
		return iterator_count($this);
	}

}
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