TYPO3 routing and aspect - remove cHash from URL - typo3

Question

With TYPO3 9.5 I try to manage the URLs from my extension with a custom aspect. The url-generation works but there is a cHash appended. First, I don't want this cHash (it's unnecessary here) and second the cHash breaks the functionality of the link (I get a cHash-comparsion-error).
I read https://docs.typo3.org/c/typo3/cms-core/master/en-us/Changelog/9.5/Feature-86365-RoutingEnhancersAndAspects.html#impact another time about the dynamic parameters and cHash. To remove cHash I should add aspects for all placeholders. I have just one placeholder and an aspect for this, but cHash is present.
raw-url looks like this:
&tx_psoabilling_pi1[action]=showband&tx_psoabilling_pi1[controller]=Band&tx_psoabilling_pi1[band]=564&cHash=jkg24hwek8ufhqwezweklfzh
it's rendered to something like this:
2019-thisisaname?cHash=o28z3hkwejghweuhzlk
Here the part from config.yaml:
PsoabillingPlugin:
type: Extbase
extension: Psoabilling
plugin: Pi1
routes:
- routePath: '/{yearandbandname}'
_controller: 'Band::showband'
_arguments:
yearandbandname: band
defaultController: 'Band::listyear'
aspects:
yearandbandname:
type: BandAndYearMapper
BandAndYearMapper.php
<?php
namespace EnzephaloN\ThemePsoa\Routing\Aspect;
use TYPO3\CMS\Core\Routing\Aspect\PersistedMappableAspectInterface;
use TYPO3\CMS\Core\Site\SiteLanguageAwareTrait;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Database\ConnectionPool;
class BandAndYearMapper implements PersistedMappableAspectInterface{
use SiteLanguageAwareTrait;
/**
* #param string $value
* #return string|null
*/
public function generate(string $value): ?string{
if($uid=intval($value)){
$queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('tx_psoabilling_domain_model_band');
$statement = $queryBuilder
->select('b.uid', 'b.name', 'y.year')
->from('tx_psoabilling_domain_model_band','b')
->leftJoin('b', 'tx_psoabilling_domain_model_year', 'y', 'b.year = y.uid')
->where(
$queryBuilder->expr()->eq('b.uid', $queryBuilder->createNamedParameter($uid))
)
->execute();
if($record = $statement->fetch()){
if(is_array($record)){
return $record['year']. "-" .str_replace(" ","-",trim(strtolower($record['name'])));
}
}
}
return null;
}
/**
* #param string $value
* #return string|null
*/
public function resolve(string $value): ?string{
$year = substr($value, 0, 4);
$name = str_replace("-", " ", substr($value, 5));
$queryBuilder = GeneralUtility::makeInstance(ConnectionPool::class)->getQueryBuilderForTable('tx_psoabilling_domain_model_band');
$statement = $queryBuilder
->select('b.uid')
->from('tx_psoabilling_domain_model_band','b')
->leftJoin('b', 'tx_psoabilling_domain_model_year', 'y', 'b.year = y.uid')
->where(
$queryBuilder->expr()->andX(
$queryBuilder->expr()->eq('y.year', $queryBuilder->createNamedParameter($year)),
$queryBuilder->expr()->orX(
$queryBuilder->expr()->like('b.name', $queryBuilder->createNamedParameter($name)),
$queryBuilder->expr()->like('b.name', $queryBuilder->createNamedParameter(substr($value, 5))), // if there was a - inside the bandname
$queryBuilder->expr()->like('b.name', $queryBuilder->createNamedParameter(substr($value, 5, strpos($name, " ")-1).'%')) // just find by beginning
)
)
)
->execute();
if($record = $statement->fetch()){
return (string)$record['uid'];
}
return null;
}
}
How can the cHash be removed??

Answer 1

Like Susi wrote, switching to StaticMappableAspectInterface was the solution. The class now starts with:
<?php
namespace EnzephaloN\ThemePsoa\Routing\Aspect;
use TYPO3\CMS\Core\Routing\Aspect\StaticMappableAspectInterface;
use TYPO3\CMS\Core\Site\SiteLanguageAwareTrait;
use TYPO3\CMS\Core\Utility\GeneralUtility;
use TYPO3\CMS\Core\Database\ConnectionPool;
class BandAndYearMapper implements StaticMappableAspectInterface{