/**
* Returns the items for a given page.
*
* @return ArrayIterator
*/
public function getItemsByPage($pageNumber)
{
if (isset($this->_pageItems[$pageNumber])) {
return $this->_pageItems[$pageNumber];
}
$offset = ($pageNumber - 1) * $this->_itemCountPerPage;
$items = $this->_adapter->getItems($offset, $this->_itemCountPerPage);
if (!$items instanceof Iterator) {
$items = new ArrayIterator($items);
}
$this->_pageItems[$pageNumber] = $items;
return $items;
}
/**
* Returns the items for a given page.
*
* @return Traversable
*/
public function getItemsByPage($pageNumber)
{
$pageNumber = $this->normalizePageNumber($pageNumber);
if ($this->_cacheEnabled()) {
$data = self::$_cache->load($this->_getCacheId($pageNumber));
if ($data !== false) {
return $data;
}
}
$offset = ($pageNumber - 1) * $this->getItemCountPerPage();
$items = $this->_adapter->getItems($offset, $this->getItemCountPerPage());
$filter = $this->getFilter();
if ($filter !== null) {
$items = $filter->filter($items);
}
if (!$items instanceof Traversable) {
$items = new ArrayIterator($items);
}
if ($this->_cacheEnabled()) {
self::$_cache->save($items, $this->_getCacheId($pageNumber), array($this->_getCacheInternalId()));
}
return $items;
}
