public class StandardDeviationPostAggregator extends Object implements PostAggregator
Modifier and Type | Field and Description |
---|---|
protected String |
estimator |
protected String |
fieldName |
protected boolean |
isVariancePop |
protected String |
name |
Constructor and Description |
---|
StandardDeviationPostAggregator(String name,
String fieldName,
String estimator) |
Modifier and Type | Method and Description |
---|---|
Object |
compute(Map<String,Object> combinedAggregators) |
PostAggregator |
decorate(Map<String,AggregatorFactory> aggregators)
Returns a richer post aggregator which are built from the given aggregators with their names and some accessible
environmental variables such as ones in the object scope.
|
byte[] |
getCacheKey()
Get a byte array used as a cache key.
|
Comparator<Double> |
getComparator() |
Set<String> |
getDependentFields() |
String |
getEstimator() |
String |
getFieldName() |
String |
getName() |
String |
toString() |
protected final String name
protected final String fieldName
protected final String estimator
protected final boolean isVariancePop
public Set<String> getDependentFields()
getDependentFields
in interface PostAggregator
public Comparator<Double> getComparator()
getComparator
in interface PostAggregator
public Object compute(Map<String,Object> combinedAggregators)
compute
in interface PostAggregator
public String getName()
getName
in interface PostAggregator
public PostAggregator decorate(Map<String,AggregatorFactory> aggregators)
PostAggregator
decorate
in interface PostAggregator
aggregators
- A map of aggregator factories with their names.public String getFieldName()
public String getEstimator()
public byte[] getCacheKey()
Cacheable
getCacheKey
in interface Cacheable
Copyright © 2011–2018. All rights reserved.