/**
* Adds an item into the map.
* This method overrides the parent implementation by
* checking the item to be inserted is of certain type.
* @param integer $index the specified position.
* @param mixed $item new item
* @throws Kohana_Exception If the index specified exceeds the bound,
* the map is read-only or the element is not of the expected type.
*/
public function add($index, $item)
{
if ($item instanceof $this->_type) {
parent::add($index, $item);
} else {
throw new Kohana_Exception('Collection_Typed_Map<:type> can only hold objects of :type class.', array(':type' => $this->_type));
}
}
/**
* Determines whether a property can be read.
* This method overrides parent implementation by returning TRUE
* if the collection contains the named key.
* @param string $name the property name
* @return boolean whether the property can be read
*/
public function can_get_property($name)
{
return $this->contains($name) or parent::contains($name);
}
