CounterWriter (Spring Boot API)

所有已知子接口:
MetricRepository, MetricWriter, RichGaugeRepository
所有已知实现类:
CompositeMetricWriter, InMemoryMetricRepository, InMemoryRichGaugeRepository, JmxMetricWriter, MessageChannelMetricWriter, RedisMetricRepository, StatsdMetricWriter
```
public interface CounterWriter
```
Simple writer for counters (metrics that increment).
从以下版本开始:
1.3.0

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(Delta<?> delta)`	Increment the value of a metric (or decrement if the delta is negative).
`void`	`reset(String metricName)`	Reset the value of a metric, usually to zero value.

- 方法详细资料
  - increment
```
void increment(Delta<?> delta)
```
    Increment the value of a metric (or decrement if the delta is negative). The name of the delta is the name of the metric to increment.
    参数:
    delta - the amount to increment by
  - reset
```
void reset(String metricName)
```
    Reset the value of a metric, usually to zero value. Implementations can discard the old values if desired, but may choose not to. This operation is optional (some implementations may not be able to fulfill the contract, in which case they should simply do nothing).
    参数:
    metricName - the name to reset