/**
* {@inheritDoc}
*
* @api
*/
public function unregisterNamespace($prefix)
{
if (!$this->transport instanceof WritingInterface) {
throw new UnsupportedRepositoryOperationException('Transport does not support writing');
}
$this->lazyLoadNamespaces();
$this->checkPrefix($prefix);
if (!array_key_exists($prefix, $this->userNamespaces)) {
// we already checked whether this is a prefix out of the defaultNamespaces in checkPrefix
throw new NamespaceException("Prefix {$prefix} is not currently registered");
}
$this->transport->unregisterNamespace($prefix);
//remove the prefix from the local userNamespaces array
unset($this->userNamespaces[$prefix]);
}
