接口的使用
com.alibaba.metrics.Gauge

com.alibaba.metrics中Gauge的使用

实现Gauge的com.alibaba.metrics中的类

限定符和类型	类和说明
class	CachedGauge<T> A Gauge implementation which caches its value for a period of time.
class	DerivativeGauge<F,T> A gauge whose value is derived from the value of another gauge.
class	JmxAttributeGauge A Gauge implementation which queries an MBeanServerConnection for an attribute of an object.
class	PersistentGauge<T> A subclass of Gauge which should be persistent.
class	RatioGauge A gauge which measures the ratio of one value to another.

返回变量类型为Gauge的类型的com.alibaba.metrics中的方法

限定符和类型	方法和说明
abstract SortedMap<MetricName,Gauge>	MetricRegistry.getGauges() Returns a map of all the gauges in the registry and their names.
abstract SortedMap<MetricName,Gauge>	MetricRegistry.getGauges(MetricFilter filter) Returns a map of all the gauges in the registry and their names which match the given filter.
SortedMap<MetricName,Gauge>	NOPMetricManager.getGauges(String group, MetricFilter filter)
SortedMap<MetricName,Gauge>	IMetricManager.getGauges(String group, MetricFilter filter)

参数类型为Gauge的com.alibaba.metrics中的方法

限定符和类型	方法和说明
void	Collector.collect(MetricName name, Gauge gauge, long timestamp)
void	MetricRegistryListener.onGaugeAdded(MetricName name, Gauge<?> gauge) Called when a Gauge is added to the registry.
void	MetricRegistryListener.Base.onGaugeAdded(MetricName name, Gauge<?> gauge)