LockFreeExponentiallyDecayingReservoir.Builder (Metrics Core 4.2.0-beta.2 API)

java.lang.Object
- com.codahale.metrics.LockFreeExponentiallyDecayingReservoir.Builder

Enclosing class:

LockFreeExponentiallyDecayingReservoir
```
public static final class LockFreeExponentiallyDecayingReservoir.Builder
extends Object
```
By default this uses a size of 1028 elements, which offers a 99.9% confidence level with a 5% margin of error assuming a normal distribution, and an alpha factor of 0.015, which heavily biases the reservoir to the past 5 minutes of measurements.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`LockFreeExponentiallyDecayingReservoir.Builder`	`alpha(double value)`	Alpha is the exponential decay factor.
`Reservoir`	`build()`
`LockFreeExponentiallyDecayingReservoir.Builder`	`clock(Clock value)`	Clock instance used for decay.
`LockFreeExponentiallyDecayingReservoir.Builder`	`rescaleThreshold(Duration value)`	Interval at which this reservoir is rescaled.
`LockFreeExponentiallyDecayingReservoir.Builder`	`size(int value)`	Maximum number of samples to keep in the reservoir.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - size
```
public LockFreeExponentiallyDecayingReservoir.Builder size(int value)
```
    Maximum number of samples to keep in the reservoir. Once this number is reached older samples are replaced (based on weight, with some amount of random jitter).
  - alpha
```
public LockFreeExponentiallyDecayingReservoir.Builder alpha(double value)
```
    Alpha is the exponential decay factor. Higher values bias results more heavily toward newer values.
  - rescaleThreshold
```
public LockFreeExponentiallyDecayingReservoir.Builder rescaleThreshold(Duration value)
```
    Interval at which this reservoir is rescaled.
  - clock
```
public LockFreeExponentiallyDecayingReservoir.Builder clock(Clock value)
```
    Clock instance used for decay.
  - build
```
public Reservoir build()
```