StatsSummary (Flink : Runtime 2.2.0 API)

java.lang.Object
- org.apache.flink.runtime.util.stats.StatsSummary

All Implemented Interfaces:

Serializable
```
public class StatsSummary
extends Object
implements Serializable
```
Aggregated values of some measurement such as min/max/average state size. Used in reporting checkpoint statistics.

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

StatsSummary()

StatsSummary(int histogramWindowSize)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(long value)`	Adds the value to the stats if it is >= 0.
`StatsSummarySnapshot`	`createSnapshot()`	Returns a snapshot of the current state.
`long`	`getAverage()`	Calculates the average over all seen values.
`long`	`getCount()`	Returns the count of all seen values.
`long`	`getMaximum()`	Returns the maximum seen value.
`long`	`getMinimum()`	Returns the minimum seen value.
`long`	`getSum()`	Returns the sum of all seen values.

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

- Constructor Detail
  - StatsSummary
```
public StatsSummary()
```
  - StatsSummary
```
public StatsSummary(int histogramWindowSize)
```
- Method Detail
  - add
```
public void add(long value)
```
    Adds the value to the stats if it is >= 0.
    
    Parameters:
    
    value - Value to add for min/max/avg stats..
  - createSnapshot
```
public StatsSummarySnapshot createSnapshot()
```
    Returns a snapshot of the current state.
    
    Returns:
    
    A snapshot of the current state.
  - getMinimum
```
public long getMinimum()
```
    Returns the minimum seen value.
    
    Returns:
    
    The current minimum value.
  - getMaximum
```
public long getMaximum()
```
    Returns the maximum seen value.
    
    Returns:
    
    The current maximum value.
  - getSum
```
public long getSum()
```
    Returns the sum of all seen values.
    
    Returns:
    
    Sum of all values.
  - getCount
```
public long getCount()
```
    Returns the count of all seen values.
    
    Returns:
    
    Count of all values.
  - getAverage
```
public long getAverage()
```
    Calculates the average over all seen values.
    
    Returns:
    
    Average over all seen values.