ilAssLacOperationManufacturer.php

Go to the documentation of this file.

<?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()
    {
    }
}