PrefixMetricWriter (Spring Boot API)

所有已知子接口:
MultiMetricRepository
所有已知实现类:
InMemoryMultiMetricRepository, RedisMultiMetricRepository
```
public interface PrefixMetricWriter
```
A writer for metrics that allows efficient storage of groups of metrics with a common name prefix (their group name).
从以下版本开始:
1.1.0

方法概要

所有方法实例方法抽象方法
修饰符和类型	方法	说明
`void`	`increment(String group, Delta<?> delta)`	Increment the value of a metric (or decrement if the delta is negative).
`void`	`reset(String group)`	Rest the values of all metrics in the group.
`void`	`set(String group, Collection<Metric<?>> values)`	Save some metric values and associate them with a group name.

- 方法详细资料
  - set
```
void set(String group,
         Collection<Metric<?>> values)
```
    Save some metric values and associate them with a group name.
    参数:
    group - the name of the group
    values - the metric values to save
  - increment
```
void increment(String group,
               Delta<?> delta)
```
    Increment the value of a metric (or decrement if the delta is negative). The name of the metric to increment is group + "." + delta.name.
    参数:
    group - the name of the group
    delta - the amount to increment by
  - reset
```
void reset(String group)
```
    Rest the values of all metrics in the group. Implementations may choose to discard the old values.
    参数:
    group - reset the whole group