Constraint.php
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Constraint.php
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	<?php

	namespace Doctrine\DBAL\Schema;

	use Doctrine\DBAL\Platforms\AbstractPlatform;

	/**
	* Marker interface for constraints.
	*
	* @deprecated Use {@see ForeignKeyConstraint}, {@see Index} or {@see UniqueConstraint} instead.
	*/
	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);
	}