class.ilAssQuestionSolutionComparisonExpressionImportList.php

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<?php

class ilAssQuestionSolutionComparisonExpressionImportList implements Iterator
{
    private ?int $importQuestionId;
    private ?int $importSkillBaseId;
    private ?int $importSkillTrefId;
    private array $expressions;

    public function __construct()
    {
        $this->importQuestionId = null;
        $this->importSkillBaseId = null;
        $this->importSkillTrefId = null;

        $this->expressions = [];
    }

    public function getImportQuestionId(): ?int
    {
        return $this->importQuestionId;
    }

    public function setImportQuestionId($importQuestionId): void
    {
        $this->importQuestionId = $importQuestionId;
    }

    public function getImportSkillBaseId(): ?int
    {
        return $this->importSkillBaseId;
    }

    public function setImportSkillBaseId($importSkillBaseId): void
    {
        $this->importSkillBaseId = $importSkillBaseId;
    }

    public function getImportSkillTrefId(): ?int
    {
        return $this->importSkillTrefId;
    }

    public function setImportSkillTrefId($importSkillTrefId): void
    {
        $this->importSkillTrefId = $importSkillTrefId;
    }

    public function getExpressions(): array
    {
        return $this->expressions;
    }

    public function addExpression(ilAssQuestionSolutionComparisonExpressionImport $expression): void
    {
        $expression->setImportQuestionId($this->getImportQuestionId());
        $expression->setImportSkillBaseId($this->getImportSkillBaseId());
        $expression->setImportSkillTrefId($this->getImportSkillTrefId());

        $this->expressions[$expression->getOrderIndex()] = $expression;
    }

    public function current(): ilAssQuestionSolutionComparisonExpressionImport
    {
        return current($this->expressions);
    }

    public function next(): void
    {
        next($this->expressions);
    }

    public function key(): int
    {
        return key($this->expressions);
    }

    public function valid(): bool
    {
        return key($this->expressions) !== null;
    }

    public function rewind(): void
    {
        reset($this->expressions);
    }
}