java.lang.Object
- org.springframework.boot.actuate.metrics.export.AbstractMetricExporter

所有已实现的接口:
Closeable, Flushable, AutoCloseable, Exporter
直接已知子类:
MetricCopyExporter, PrefixMetricGroupExporter, RichGaugeExporter
```
public abstract class AbstractMetricExporter
extends Object
implements Exporter, Closeable, Flushable
```
Base class for metric exporters that have common features, principally a prefix for exported metrics and filtering by timestamp (so only new values are included in the export).
从以下版本开始:
1.3.0

构造器概要
构造器
构造器说明
AbstractMetricExporter(String prefix)

方法概要

所有方法实例方法抽象方法具体方法
修饰符和类型	方法	说明
`void`	`close()`
`void`	`export()`	Export metric data.
`void`	`flush()`
`protected Iterable<String>`	`groups()`	Generate a group of metrics to iterate over in the form of a set of Strings (e.g.
`protected abstract Iterable<Metric<?>>`	`next(String group)`	Get the next group of metrics to write.
`void`	`setEarliestTimestamp(Date earliestTimestamp)`	The earliest time for which data will be exported.
`void`	`setIgnoreTimestamps(boolean ignoreTimestamps)`	Ignore timestamps (export all metrics).
`void`	`setSendLatest(boolean sendLatest)`	Send only the data that changed since the last export.
`protected abstract void`	`write(String group, Collection<Metric<?>> values)`	Write the values associated with a group.

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
  - AbstractMetricExporter
```
public AbstractMetricExporter(String prefix)
```
- 方法详细资料
  - setEarliestTimestamp
```
public void setEarliestTimestamp(Date earliestTimestamp)
```
    The earliest time for which data will be exported.
    参数:
    earliestTimestamp - the timestamp to set
  - setIgnoreTimestamps
```
public void setIgnoreTimestamps(boolean ignoreTimestamps)
```
    Ignore timestamps (export all metrics).
    参数:
    ignoreTimestamps - the flag to set
  - setSendLatest
```
public void setSendLatest(boolean sendLatest)
```
    Send only the data that changed since the last export.
    参数:
    sendLatest - the flag to set
  - export
```
public void export()
```
    从接口复制的说明: Exporter
    Export metric data.
    指定者:
    export 在接口中 Exporter
  - close
```
public void close()
           throws IOException
```
    指定者:
    close 在接口中 AutoCloseable
    指定者:
    close 在接口中 Closeable
    抛出:
    IOException
  - flush
```
public void flush()
```
    指定者:
    flush 在接口中 Flushable
  - groups
```
protected Iterable<String> groups()
```
    Generate a group of metrics to iterate over in the form of a set of Strings (e.g. prefixes). If the metrics to be exported partition into groups identified by a String, subclasses should override this method. Otherwise the default should be fine (iteration over all metrics).
    返回:
    groups of metrics to iterate over (default singleton empty string)
  - write
```
protected abstract void write(String group,
                              Collection<Metric<?>> values)
```
    Write the values associated with a group.
    参数:
    group - the group to write
    values - the values to write
  - next
```
protected abstract Iterable<Metric<?>> next(String group)
```
    Get the next group of metrics to write.
    参数:
    group - the group name to write
    返回:
    some metrics to write

类 AbstractMetricExporter

构造器概要

方法概要

从类继承的方法 java.lang.Object

构造器详细资料

AbstractMetricExporter

方法详细资料

setEarliestTimestamp

setIgnoreTimestamps

setSendLatest

export

close

flush

groups

write

next