<?php
/**
* Zend Framework (http://framework.zend.com/)
*
* @link http://github.com/zendframework/zf2 for the canonical source repository
* @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
namespace Zend\Db\Adapter\Driver\Oci8;
use Iterator;
use Zend\Db\Adapter\Driver\ResultInterface;
use Zend\Db\Adapter\Exception;
class Result implements Iterator, ResultInterface
{
/**
* @var resource
*/
protected $resource = null;
/**
* @var bool
*/
protected $isBuffered = null;
/**
* Cursor position
* @var int
*/
protected $position = 0;
/**
* Number of known rows
* @var int
*/
protected $numberOfRows = -1;
/**
* Is the current() operation already complete for this pointer position?
* @var bool
*/
protected $currentComplete = false;
/**
* @var bool
*/
protected $currentData = false;
/**
*
* @var array
*/
protected $statementBindValues = array('keys' => null, 'values' => array());
/**
* @var mixed
*/
protected $generatedValue = null;
/**
* Initialize
* @param resource $resource
* @return Result
*/
public function initialize($resource /*, $generatedValue, $isBuffered = null*/)
{
if (!is_resource($resource) && get_resource_type($resource) !== 'oci8 statement') {
throw new Exception\InvalidArgumentException('Invalid resource provided.');
}
$this->resource = $resource;
return $this;
}
/**
* Force buffering at driver level
*
* Oracle does not support this, to my knowledge (@ralphschindler)
*
* @throws Exception\RuntimeException
*/
public function buffer()
{
return null;
}
/**
* Is the result buffered?
*
* @return bool
*/
public function isBuffered()
{
return false;
}
/**
* Return the resource
* @return mixed
*/
public function getResource()
{
return $this->resource;
}
/**
* Is query result?
*
* @return bool
*/
public function isQueryResult()
{
return (oci_num_fields($this->resource) > 0);
}
/**
* Get affected rows
* @return int
*/
public function getAffectedRows()
{
return oci_num_rows($this->resource);
}
/**
* Current
* @return mixed
*/
public function current()
{
if ($this->currentComplete == false) {
if ($this->loadData() === false) {
return false;
}
}
return $this->currentData;
}
/**
* Load from oci8 result
*
* @return bool
*/
protected function loadData()
{
$this->currentComplete = true;
$this->currentData = oci_fetch_assoc($this->resource);
if ($this->currentData !== false) {
$this->position++;
return true;
}
return false;
}
/**
* Next
*/
public function next()
{
return $this->loadData();
}
/**
* Key
* @return mixed
*/
public function key()
{
return $this->position;
}
/**
* Rewind
*/
public function rewind()
{
if ($this->position > 0) {
throw new Exception\RuntimeException('Oci8 results cannot be rewound for multiple iterations');
}
}
/**
* Valid
* @return bool
*/
public function valid()
{
if ($this->currentComplete) {
return ($this->currentData !== false);
}
return $this->loadData();
}
/**
* Count
* @return int
*/
public function count()
{
// @todo OCI8 row count in Driver Result
return null;
}
/**
* @return int
*/
public function getFieldCount()
{
return oci_num_fields($this->resource);
}
/**
* @return mixed|null
*/
public function getGeneratedValue()
{
// @todo OCI8 generated value in Driver Result
return null;
}
}
# |
Change |
User |
Description |
Committed |
|
#1
|
18334 |
Liz Lam |
initial add of jambox |
|
|