com.pdd.pop.ext.codahale.metrics.Reservoir Maven / Gradle / Ivy
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package com.pdd.pop.ext.codahale.metrics;
/**
* A statistically representative reservoir of a data stream.
*/
public interface Reservoir {
/**
* Returns the number of values recorded.
*
* @return the number of values recorded
*/
int size();
/**
* Adds a new recorded value to the reservoir.
*
* @param value a new recorded value
*/
void update(long value);
/**
* Returns a snapshot of the reservoir's values.
*
* @return a snapshot of the reservoir's values
*/
Snapshot getSnapshot();
}