@Override
	public <S extends M> Iterable<S> save(Iterable<S> metrics) {
		List<S> results = new ArrayList<S>();
		for (S m : metrics) {
			results.add(save(m));
		}
		return results;
	}
Provides the key for a named metric. By default this appends the name to the metricPrefix value.

@param metricName the name of the metric
@return the redis key under which the metric is stored
spring-xd-analytics/src/main/java/org/springframework/xd/analytics/metrics/redis/AbstractRedisMetricRepository.java