ilAssLacOperationManufacturer.php

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<?php

require_once "Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Factory/ilAssLacAbstractManufacturer.php";

class ilAssLacOperationManufacturer extends ilAssLacAbstractManufacturer{

        protected static $instance = null;

        public static function _getInstance(){
                if(self::$instance == null){
                        self::$instance = new ilAssLacOperationManufacturer();
                }
                return self::$instance;
        }

        public function manufacture($attribute)
        {
                $operation = "";
                switch($attribute)
                {
                        case ilAssLacLesserOperation::$pattern:
                                $operation = new ilAssLacLesserOperation();
                                break;
                        case ilAssLacLesserOrEqualsOperation::$pattern:
                                $operation = new ilAssLacLesserOrEqualsOperation();
                                break;
                        case ilAssLacEqualsOperation::$pattern:
                                $operation = new ilAssLacEqualsOperation();
                                break;
                        case ilAssLacGreaterOrEqualsOperation::$pattern:
                                $operation = new ilAssLacGreaterOrEqualsOperation();
                                break;
                        case ilAssLacGreaterOperation::$pattern:
                                $operation = new ilAssLacGreaterOperation();
                                break;
                        case ilAssLacNotEqualsOperation::$pattern:
                                $operation = new ilAssLacNotEqualsOperation();
                                break;
                        case ilAssLacAndOperation::$pattern:
                                $operation = new ilAssLacAndOperation();
                                break;
                        case ilAssLacOrOperation::$pattern:
                                $operation = new ilAssLacOrOperation();
                                break;
                        default:
                                throw new ilAssLacUnsupportedOperation($attribute);
                                break;
                }
                return $operation;
        }

        public function getPattern()
        {
//              return '/[&\|<>=]+/';
                return '/&|\||(?<!<|>)=|<(?!=|>)|>(?!=)|<=|>=|<>/';
        }

        private function __construct()
        {
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacLesserOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacLesserOrEqualsOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacEqualsOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacGreaterOrEqualsOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacGreaterOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacNotEqualsOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacAndOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Operations/ilAssLacOrOperation.php';
                require_once 'Modules/TestQuestionPool/classes/questions/LogicalAnswerCompare/Exception/ilAssLacUnsupportedOperation.php';
        }

        private function __clone() {}
}