<?php

/**

 * This class stands for AssignmentCompletionStatus EnumType

 * @subpackage Enumerations

 */

class AssignmentCompletionStatus

{

    /**

     * Constant for value 'Completed'

     * @return string 'Completed'

     */

    const VALUE_COMPLETED = 'Completed';

    /**

     * Constant for value 'NotCompleted'

     * @return string 'NotCompleted'

     */

    const VALUE_NOT_COMPLETED = 'NotCompleted';

    /**

     * Constant for value 'Expired'

     * @return string 'Expired'

     */

    const VALUE_EXPIRED = 'Expired';

    /**

     * Return true if value is allowed

     * @uses self::getValidValues()

     * @param mixed $value value

     * @return bool true|false

     */

    public static function valueIsValid($value)

    {

        return ($value === null) || in_array($value, self::getValidValues(), true);

    }

    /**

     * Return allowed values

     * @uses self::VALUE_COMPLETED

     * @uses self::VALUE_NOT_COMPLETED

     * @uses self::VALUE_EXPIRED

     * @return string[]

     */

    public static function getValidValues()

    {

        return array(

            self::VALUE_COMPLETED,

            self::VALUE_NOT_COMPLETED,

            self::VALUE_EXPIRED,

        );

    }

    /**

     * Method returning the class name

     * @return string __CLASS__

     */

    public function __toString()

    {

        return __CLASS__;

    }

}

​