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<?php
/**
* Library for extracting information about the sub-partitions
*/
declare(strict_types=1);
namespace PhpMyAdmin\Partitioning;
/**
* Represents a sub partition of a table
*/
class SubPartition
{
/** @var string the database */
protected $db;
/** @var string the table */
protected $table;
/** @var string partition name */
protected $name;
/** @var int ordinal */
protected $ordinal;
/** @var string partition method */
protected $method;
/** @var string partition expression */
protected $expression;
/** @var int no of table rows in the partition */
protected $rows;
/** @var int data length */
protected $dataLength;
/** @var int index length */
protected $indexLength;
/** @var string partition comment */
protected $comment;
/**
* Constructs a partition
*
* @param array $row fetched row from information_schema.PARTITIONS
*/
public function __construct(array $row)
{
$this->db = $row['TABLE_SCHEMA'];
$this->table = $row['TABLE_NAME'];
$this->loadData($row);
}
/**
* Loads data from the fetched row from information_schema.PARTITIONS
*
* @param array $row fetched row
*/
protected function loadData(array $row): void
{
$this->name = $row['SUBPARTITION_NAME'];
$this->ordinal = $row['SUBPARTITION_ORDINAL_POSITION'];
$this->method = $row['SUBPARTITION_METHOD'];
$this->expression = $row['SUBPARTITION_EXPRESSION'];
$this->loadCommonData($row);
}
/**
* Loads some data that is common to both partitions and sub partitions
*
* @param array $row fetched row
*/
protected function loadCommonData(array $row): void
{
$this->rows = $row['TABLE_ROWS'];
$this->dataLength = $row['DATA_LENGTH'];
$this->indexLength = $row['INDEX_LENGTH'];
$this->comment = $row['PARTITION_COMMENT'];
}
/**
* Return the partition name
*
* @return string partition name
*/
public function getName()
{
return $this->name;
}
/**
* Return the ordinal of the partition
*
* @return int the ordinal
*/
public function getOrdinal()
{
return $this->ordinal;
}
/**
* Returns the partition method
*
* @return string partition method
*/
public function getMethod()
{
return $this->method;
}
/**
* Returns the partition expression
*
* @return string partition expression
*/
public function getExpression()
{
return $this->expression;
}
/**
* Returns the number of data rows
*
* @return int number of rows
*/
public function getRows()
{
return $this->rows;
}
/**
* Returns the data length
*
* @return int data length
*/
public function getDataLength()
{
return $this->dataLength;
}
/**
* Returns the index length
*
* @return int index length
*/
public function getIndexLength()
{
return $this->indexLength;
}
/**
* Returns the partition comment
*
* @return string partition comment
*/
public function getComment()
{
return $this->comment;
}
}
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