def _get_job_collection_name(self, process_name):
        """jobs are stored in 4 collections: hourly, daily, monthly and yearly;
        method looks for the proper job_collection base on process TIME_QUALIFIER"""
        qualifier = context.process_context[process_name].time_qualifier

        if qualifier == QUALIFIER_HOURLY:
            collection_name = COLLECTION_JOB_HOURLY
        elif qualifier == QUALIFIER_DAILY:
            collection_name = COLLECTION_JOB_DAILY
        elif qualifier == QUALIFIER_MONTHLY:
            collection_name = COLLECTION_JOB_MONTHLY
        elif qualifier == QUALIFIER_YEARLY:
            collection_name = COLLECTION_JOB_YEARLY
        else:
            raise ValueError('Unknown time qualifier: {0} for {1}'.format(qualifier, process_name))
        return collection_name