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<?php
namespace Bitrix\Perfmon\Sql;
/**
* Class Collection
* This class represents collection of database objects such as table columns or indexes, schema procedures or sequences.
* @package Bitrix\Perfmon\Sql
*/
class Collection
{
/** @var array[BaseObject] */
private $list = [];
/**
* Add object into the tail of the collection.
*
* @param BaseObject $object Object to add.
*
* @return void
*/
public function add(BaseObject $object)
{
$this->list[] = $object;
}
/**
* Replaces object in the collection.
*
* @param int $index Collection index for replacement.
* @param BaseObject $object Object to add.
*
* @return void
*/
public function set($index, BaseObject $object)
{
$this->list[$index] = $object;
}
/**
* Searches collection for an object by it's name.
*
* @param string $name Object name to look up.
*
* @return BaseObject|null
*/
public function search($name)
{
/** @var BaseObject $object */
foreach ($this->list as $object)
{
if ($object->compareName($name) == 0)
{
return $object;
}
}
return null;
}
/**
* Searches collection for an object by it's name.
*
* @param string $name Object name to look up.
*
* @return int|null
*/
public function searchIndex($name)
{
/** @var BaseObject $object */
foreach ($this->list as $i => $object)
{
if ($object->compareName($name) == 0)
{
return $i;
}
}
return null;
}
/**
* Returns all collection objects.
*
* @return array[BaseObject]
*/
public function getList()
{
return $this->list;
}
/**
* Compares two collections of objects and returns array of pairs.
* <p>
* Pair is the two element array:
* - First element with index "0" is the object from the source collection.
* - Second element with index "1" is the object from $targetList.
* - if pair element is null when no such element found (by name) in the collection.
*
* @param Collection $targetList Collection to compare.
* @param bool $compareBody Whenever to compare objects bodies or not.
*
* @return array
*/
public function compare(Collection $targetList, $compareBody = true)
{
$difference = [];
/** @var BaseObject $source */
foreach ($this->list as $source)
{
if (!$targetList->search($source->name))
{
$difference[] = [
$source,
null,
];
}
}
/** @var BaseObject $target */
foreach ($targetList->list as $target)
{
$source = $this->search($target->name);
if (!$source)
{
$difference[] = [
null,
$target,
];
}
elseif (
!$compareBody
|| $source->body !== $target->body
)
{
$difference[] = [
$source,
$target,
];
}
}
return $difference;
}
}