<?php namespace Doctrine\DBAL\Schema; use Doctrine\DBAL\Platforms\AbstractPlatform; /** * Marker interface for constraints. */ interface Constraint { /** * @return string */ public function getName(); /** * @return string */ public function getQuotedName(AbstractPlatform $platform); /** * Returns the names of the referencing table columns * the constraint is associated with. * * @return string[] */ public function getColumns(); /** * Returns the quoted representation of the column names * the constraint is associated with. * * But only if they were defined with one or a column name * is a keyword reserved by the platform. * Otherwise the plain unquoted value as inserted is returned. * * @param AbstractPlatform $platform The platform to use for quotation. * * @return string[] */ public function getQuotedColumns(AbstractPlatform $platform); }