/**
* Returns the object from the set
*
* Required by interface ArrayAccess
*
* @param ObjectHandlable $object
* @return ObjectHandlable
* @throws \InvalidArgumentException if the object doesn't implement ObjectHandlable
*/
public function offsetGet($object)
{
if (!$object instanceof ObjectHandlable) {
throw new \InvalidArgumentException('Object needs to implement ObjectHandlable');
}
return $this->_object_set->offsetGet($object->getHandle());
}
/**
* Removes a row from the rowset
*
* The row will be removed based on it's identity_column if set or otherwise by
* it's object handle.
*
* @param DatabaseRowInterface $row
* @return DatabaseRowsetAbstract
* @throws \InvalidArgumentException if the object doesn't implement DatabaseRowInterface
*/
public function extract(ObjectHandlable $row)
{
if (!$row instanceof DatabaseRowInterface) {
throw new \InvalidArgumentException('Row needs to implement DatabaseRowInterface');
}
if (isset($this->_identity_column)) {
$handle = $row->{$this->_identity_column};
} else {
$handle = $row->getHandle();
}
if ($this->_object_set->offsetExists($handle)) {
$this->_object_set->offsetUnset($handle);
}
return $this;
}
/**
* Check if the queue does contain a given object
*
* @param ObjectHandlable $object
* @return bool
*/
public function contains(ObjectHandlable $object)
{
$result = false;
if ($handle = $object->getHandle()) {
$result = $this->_object_list->offsetExists($handle);
}
return $result;
}
/**
* Removes an object from the set
*
* Required by interface ArrayAccess
*
* @param ObjectHandlable $object
* @return ObjectSet
* @throws \InvalidArgumentException if the object doesn't implement the ObjectHandlable interface
*/
public function offsetUnset($object)
{
if (!$object instanceof ObjectHandlable) {
throw new \InvalidArgumentException('Object needs to implement ObjectHandlable');
}
unset($this->__data[$object->getHandle()]);
return $this;
}
