Reservoir (Metrics Core 4.1.2 API)

All Known Implementing Classes:

ExponentiallyDecayingReservoir, SlidingTimeWindowArrayReservoir, SlidingTimeWindowReservoir, SlidingWindowReservoir, UniformReservoir
```
public interface Reservoir
```
A statistically representative reservoir of a data stream.

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Snapshot`	`getSnapshot()`	Returns a snapshot of the reservoir's values.
`int`	`size()`	Returns the number of values recorded.
`void`	`update(long value)`	Adds a new recorded value to the reservoir.

- Method Detail
  - size
```
int size()
```
    Returns the number of values recorded.
    
    Returns:
    
    the number of values recorded
  - update
```
void update(long value)
```
    Adds a new recorded value to the reservoir.
    
    Parameters:
    
    value - a new recorded value
  - getSnapshot
```
Snapshot getSnapshot()
```
    Returns a snapshot of the reservoir's values.
    
    Returns:
    
    a snapshot of the reservoir's values