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<?php
declare(strict_types=1);
namespace Ivory\Value;
use Ivory\Value\Alg\ComparableWithPhpOperators;
use Ivory\Value\Alg\IComparable;
/**
* Representation of a PostgreSQL tuple ID.
*
* A tuple ID identifies the physical location of the row within its table.
* The objects are immutable.
* @see https://www.postgresql.org/docs/11/datatype-oid.html
*/
class TupleId implements IComparable
{
use ComparableWithPhpOperators;
private $blockNumber;
private $tupleIndex;
* @param int $blockNumber number of block within which the row is stored
* @param int $tupleIndex index with the block where the row is stored
* @return TupleId
public static function fromCoordinates(int $blockNumber, int $tupleIndex): TupleId
return new TupleId($blockNumber, $tupleIndex);
}
private function __construct(int $blockNumber, int $tupleIndex)
$this->blockNumber = $blockNumber;
$this->tupleIndex = $tupleIndex;
* @return int number of block within which the row is stored
public function getBlockNumber(): int
return $this->blockNumber;
* @return int index with the block where the row is stored
public function getTupleIndex(): int
return $this->tupleIndex;
ondrej-bouda /
ivory
