Meter (TEA Agent 2.1.0 API)

All Superinterfaces:

Metric
```
public interface Meter
extends Metric
```
Metric for measuring the rate of events over time. Event occurrence is reported by invoking mark(). Meter is initialized with rate unit which represents the time for which the rate of event should be calculated.
Examples of where a Meter can be used:
- Requests received per second
- Service faults per minute
This class does not require external locking for thread safety.

Method Summary

Methods
Modifier and Type	Method and Description
`long`	`getCount()` Returns the number of events which have been marked.
`double`	`getFifteenMinuteRate()` Returns the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
`double`	`getFiveMinuteRate()` Returns the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
`double`	`getMeanRate()` Returns the mean rate at which events have occurred since the meter was created.
`double`	`getOneMinuteRate()` Returns the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
`TimeUnit`	`getRateUnit()` Returns the meter's rate unit.
`void`	`mark()` Mark the occurrence of an event.
`void`	`mark(long n)` Mark the occurrence of a given `n` number of events.

- Method Detail
  - getRateUnit
```
TimeUnit getRateUnit()
```
    Returns the meter's rate unit.
    
    Returns:
    the meter's rate unit
  - mark
```
void mark()
```
    Mark the occurrence of an event.
  - mark
```
void mark(long n)
```
    Mark the occurrence of a given n number of events.
    
    Parameters:
    n - the number of events
  - getOneMinuteRate
```
double getOneMinuteRate()
```
    Returns the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
    This rate has the same exponential decay factor as the one-minute load average in the top Unix command.
    
    Returns:
    the one-minute exponentially-weighted moving average rate at which events have occurred since the meter was created
  - getMeanRate
```
double getMeanRate()
```
    Returns the mean rate at which events have occurred since the meter was created.
    
    Returns:
    the mean rate at which events have occurred since the meter was created
  - getFiveMinuteRate
```
double getFiveMinuteRate()
```
    Returns the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
    This rate has the same exponential decay factor as the five-minute load average in the top Unix command.
    
    Returns:
    the five-minute exponentially-weighted moving average rate at which events have occurred since the meter was created
  - getFifteenMinuteRate
```
double getFifteenMinuteRate()
```
    Returns the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created.
    This rate has the same exponential decay factor as the fifteen-minute load average in the top Unix command.
    
    Returns:
    the fifteen-minute exponentially-weighted moving average rate at which events have occurred since the meter was created
  - getCount
```
long getCount()
```
    Returns the number of events which have been marked.
    
    Returns:
    the number of events which have been marked

Interface Meter

Method Summary

Method Detail

getRateUnit

mark

mark

getOneMinuteRate

getMeanRate

getFiveMinuteRate

getFifteenMinuteRate

getCount