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<?php
namespace MongoDB\Model;
/**
* DatabaseInfoIterator for inline listDatabases command results.
*
* This iterator may be used to wrap the array returned within the listDatabases
* command's single-document result.
*
* @internal
* @see MongoDB\Client::listDatabases()
* @see http://docs.mongodb.org/manual/reference/command/listDatabases/
*/
class DatabaseInfoLegacyIterator implements DatabaseInfoIterator
{
private $databases;
private $index = 0;
/**
* Constructor.
*
* @param array $databases
*/
public function __construct(array $databases)
{
$this->databases = $databases;
}
/**
* Return the current element as a DatabaseInfo instance.
*
* @see DatabaseInfoIterator::current()
* @see http://php.net/iterator.current
* @return DatabaseInfo
*/
public function current()
{
return new DatabaseInfo(current($this->databases));
}
/**
* Return the key of the current element.
*
* @see http://php.net/iterator.key
* @return integer
*/
public function key()
{
return key($this->databases);
}
/**
* Move forward to next element.
*
* @see http://php.net/iterator.next
*/
public function next()
{
next($this->databases);
}
/**
* Rewind the Iterator to the first element.
*
* @see http://php.net/iterator.rewind
*/
public function rewind()
{
reset($this->databases);
}
/**
* Checks if current position is valid.
*
* @see http://php.net/iterator.valid
* @return boolean
*/
public function valid()
{
return key($this->databases) !== null;
}
}