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<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2016 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Db\Adapter\Driver\IbmDb2;
use Zend\Db\Adapter\Driver\ResultInterface;
use Zend\Db\Adapter\Exception;
class Result implements ResultInterface
{
/**
* @var resource
*/
protected $resource;
/**
* @var int
*/
protected $position = 0;
/**
* @var bool
*/
protected $currentComplete = false;
/**
* @var mixed
*/
protected $currentData = null;
/**
* @var mixed
*/
protected $generatedValue = null;
/**
* @param resource $resource
* @param mixed $generatedValue
* @return self Provides a fluent interface
*/
public function initialize($resource, $generatedValue = null)
{
$this->resource = $resource;
$this->generatedValue = $generatedValue;
return $this;
}
/**
* (PHP 5 >= 5.0.0)<br/>
* Return the current element
* @link http://php.net/manual/en/iterator.current.php
* @return mixed Can return any type.
*/
public function current()
{
if ($this->currentComplete) {
return $this->currentData;
}
$this->currentData = db2_fetch_assoc($this->resource);
return $this->currentData;
}
/**
* @return mixed
*/
public function next()
{
$this->currentData = db2_fetch_assoc($this->resource);
$this->currentComplete = true;
$this->position++;
return $this->currentData;
}
/**
* @return int|string
*/
public function key()
{
return $this->position;
}
/**
* @return bool
*/
public function valid()
{
return ($this->currentData !== false);
}
/**
* (PHP 5 >= 5.0.0)<br/>
* Rewind the Iterator to the first element
* @link http://php.net/manual/en/iterator.rewind.php
* @return void Any returned value is ignored.
*/
public function rewind()
{
if ($this->position > 0) {
throw new Exception\RuntimeException(
'This result is a forward only result set, calling rewind() after moving forward is not supported'
);
}
$this->currentData = db2_fetch_assoc($this->resource);
$this->currentComplete = true;
$this->position = 1;
}
/**
* Force buffering
*
* @return void
*/
public function buffer()
{
return;
}
/**
* Check if is buffered
*
* @return bool|null
*/
public function isBuffered()
{
return false;
}
/**
* Is query result?
*
* @return bool
*/
public function isQueryResult()
{
return (db2_num_fields($this->resource) > 0);
}
/**
* Get affected rows
*
* @return int
*/
public function getAffectedRows()
{
return db2_num_rows($this->resource);
}
/**
* Get generated value
*
* @return mixed|null
*/
public function getGeneratedValue()
{
return $this->generatedValue;
}
/**
* Get the resource
*
* @return mixed
*/
public function getResource()
{
return $this->resource;
}
/**
* Get field count
*
* @return int
*/
public function getFieldCount()
{
return db2_num_fields($this->resource);
}
/**
* @return null|int
*/
public function count()
{
return;
}
}