MessageChannelMetricWriter (Spring Boot API)

java.lang.Object
- org.springframework.boot.actuate.metrics.writer.MessageChannelMetricWriter

所有已实现的接口:
CounterWriter, GaugeWriter, MetricWriter
```
public class MessageChannelMetricWriter
extends Object
implements MetricWriter
```
A MetricWriter that publishes the metric updates on a MessageChannel. The messages have the writer input (Delta or Metric) as payload, and carry an additional header "metricName" with the name of the metric in it.
另请参阅:
MetricWriterMessageHandler

构造器概要
构造器
构造器说明
MessageChannelMetricWriter(org.springframework.messaging.MessageChannel channel)

方法概要

所有方法实例方法具体方法
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.
`void`	`set(Metric<?> value)`	Set the value of a metric.

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - MessageChannelMetricWriter
```
public MessageChannelMetricWriter(org.springframework.messaging.MessageChannel channel)
```
- 方法详细资料
  - increment
```
public void increment(Delta<?> delta)
```
    从接口复制的说明: CounterWriter
    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.
    指定者:
    increment 在接口中 CounterWriter
    参数:
    delta - the amount to increment by
  - set
```
public void set(Metric<?> value)
```
    从接口复制的说明: GaugeWriter
    Set the value of a metric.
    指定者:
    set 在接口中 GaugeWriter
    参数:
    value - the value
  - reset
```
public void reset(String metricName)
```
    从接口复制的说明: CounterWriter
    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).
    指定者:
    reset 在接口中 CounterWriter
    参数:
    metricName - the name to reset