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<?php
declare(strict_types=1);
namespace Yiisoft\Db\Constraint;
/**
* Represents an index constraint in a database.
*
* An index constraint is a constraint that enforces uniqueness or non-uniqueness of a column or a set of columns.
* It has information about the table and column(s) that the constraint applies to, as well as whether the index is
* unique.
*/
final class IndexConstraint extends Constraint
{
private bool $isUnique = false;
private bool $isPrimary = false;
* @return bool Whether the index is unique.
public function isUnique(): bool
return $this->isUnique;
}
* @return bool Whether the index was created for a primary key.
public function isPrimary(): bool
return $this->isPrimary;
* Set whether the index is unique.
* @param bool $value Whether the index is unique.
public function unique(bool $value): self
$this->isUnique = $value;
return $this;
* Set whether the index was created for a primary key.
* @param bool $value whether the index was created for a primary key.
public function primary(bool $value): self
$this->isPrimary = $value;
yiisoft /
db
