code: protected QuotaPersister initQuotaPersister() throws RepositoryConfigurationException, QuotaManagerException
     {
        MappedParametrizedObjectEntry entry;
        try
        {
           entry = prepareISPNParameters(initParams);
        }
        catch (RepositoryException e)
        {
           throw new RepositoryConfigurationException(e.getMessage(), e);
        }
  
        return new ISPNQuotaPersister(entry, cfm);
     }
docs: {@inheritDoc}