eZ\Publish\Core\Search\Elasticsearch\Content\Common\CriterionVisitor\LogicalAnd::visitFilter PHP Method

    public function visitFilter(Criterion $criterion, Dispatcher $dispatcher, array $languageFilter)
    {
        /* @var $criterion \eZ\Publish\API\Repository\Values\Content\Query\Criterion\LogicalOperator */
        return array('and' => array_map(function ($value) use($dispatcher, $languageFilter) {
            return $dispatcher->dispatch($value, Dispatcher::CONTEXT_FILTER, $languageFilter);
        }, $criterion->criteria));
    }