UniqueKey.php

<?php

declare (strict_types=1);
namespace Drupal\Core\Database\SchemaDefinition;


/**
 * Describes a database unique key.
 */
final class UniqueKey extends KeyBase {
  
  /**
   * Constructor.
   *
   * @param string $name
   *   The unique key name.
   * @param list<KeyColumn|string> $columns
   *   A mix of key column specifiers, being KeyColumn objects, strings naming
   *   columns, or arrays of two elements, column name and length, specifying a
   *   prefix of the named column.
   */
  public function __construct(public readonly string $name, array $columns) {
    parent::__construct($columns, FALSE);
  }

}