JoinProperties.php

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<?php
 
declare(strict_types=1);
 
namespace ILIAS\MetaData\Search\Clauses\Properties;
 
use ILIAS\MetaData\Search\Clauses\Operator;
use ILIAS\MetaData\Search\Clauses\ClauseInterface;
 
class JoinProperties implements JoinPropertiesInterface
{
    protected array $sub_clauses;
    protected Operator $operator;
 
    public function __construct(
        Operator $operator,
        ClauseInterface $first_clause,
        ClauseInterface $second_clause,
        ClauseInterface ...$further_clauses
    ) {
        $this->operator = $operator;
        $this->sub_clauses = [
            $first_clause,
            $second_clause,
            ...$further_clauses
        ];
    }
 
    public function operator(): Operator
    {
        return $this->operator;
    }
 
    public function subClauses(): \Generator
    {
        yield from $this->sub_clauses;
    }
}