<?php

/**

 * SimplePie

 *

 * A PHP-Based RSS and Atom Feed Framework.

 * Takes the hard work out of managing a complete RSS/Atom solution.

 *

 * Copyright (c) 2004-2012, Ryan Parman, Geoffrey Sneddon, Ryan McCue, and contributors

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without modification, are

 * permitted provided that the following conditions are met:

 *

 * 	* Redistributions of source code must retain the above copyright notice, this list of

 * 	  conditions and the following disclaimer.

 *

 * 	* Redistributions in binary form must reproduce the above copyright notice, this list

 * 	  of conditions and the following disclaimer in the documentation and/or other materials

 * 	  provided with the distribution.

 *

 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used

 * 	  to endorse or promote products derived from this software without specific prior

 * 	  written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS

 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY

 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS

 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR

 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR

 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

 * POSSIBILITY OF SUCH DAMAGE.

 *

 * @package SimplePie

 * @version 1.3.1

 * @copyright 2004-2012 Ryan Parman, Geoffrey Sneddon, Ryan McCue

 * @author Ryan Parman

 * @author Geoffrey Sneddon

 * @author Ryan McCue

 * @link http://simplepie.org/ SimplePie

 * @license http://www.opensource.org/licenses/bsd-license.php BSD License

 */

/**

 * Handles `<media:restriction>` as defined in Media RSS

 *

 * Used by {@see SimplePie_Enclosure::get_restriction()} and {@see SimplePie_Enclosure::get_restrictions()}

 *

 * This class can be overloaded with {@see SimplePie::set_restriction_class()}

 *

 * @package SimplePie

 * @subpackage API

 */

class SimplePie_Restriction

{

	/**

	 * Relationship ('allow'/'deny')

	 *

	 * @var string

	 * @see get_relationship()

	 */

	var $relationship;

	/**

	 * Type of restriction

	 *

	 * @var string

	 * @see get_type()

	 */

	var $type;

	/**

	 * Restricted values

	 *

	 * @var string

	 * @see get_value()

	 */

	var $value;

	/**

	 * Constructor, used to input the data

	 *

	 * For documentation on all the parameters, see the corresponding

	 * properties and their accessors

	 */

	public function __construct($relationship = null, $type = null, $value = null)

	{

		$this->relationship = $relationship;

		$this->type = $type;

		$this->value = $value;

	}

	/**

	 * String-ified version

	 *

	 * @return string

	 */

	public function __toString()

	{

		// There is no $this->data here

		return md5(serialize($this));

	}

	/**

	 * Get the relationship

	 *

	 * @return string|null Either 'allow' or 'deny'

	 */

	public function get_relationship()

	{

		if ($this->relationship !== null)

		{

			return $this->relationship;

		}

		else

		{

			return null;

		}

	}

	/**

	 * Get the type

	 *

	 * @return string|null

	 */

	public function get_type()

	{

		if ($this->type !== null)

		{

			return $this->type;

		}

		else

		{

			return null;

		}

	}

	/**

	 * Get the list of restricted things

	 *

	 * @return string|null

	 */

	public function get_value()

	{

		if ($this->value !== null)

		{

			return $this->value;

		}

		else

		{

			return null;

		}

	}

}