AlphaNumericTopNMetricSpec (druid-processing 28.0.0 API)

java.lang.Object
- org.apache.druid.query.topn.LexicographicTopNMetricSpec
- - org.apache.druid.query.topn.AlphaNumericTopNMetricSpec

All Implemented Interfaces:: Cacheable, TopNMetricSpec

public class AlphaNumericTopNMetricSpec
extends LexicographicTopNMetricSpec

Field Summary

Fields
Modifier and Type Field Description

protected static Comparator<String> COMPARATOR

Constructor Summary

Constructors
Constructor Description

AlphaNumericTopNMetricSpec(String previousStop)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`<T> TopNMetricSpecBuilder<T>`	`configureOptimizer(TopNMetricSpecBuilder<T> builder)`
`byte[]`	`getCacheKey()`	Get a byte array used as a cache key.
`Comparator`	`getComparator(List<AggregatorFactory> aggregatorSpecs, List<PostAggregator> postAggregatorSpecs)`
`String`	`toString()`

Methods inherited from class org.apache.druid.query.topn.LexicographicTopNMetricSpec
canBeOptimizedUnordered, equals, getMetricName, getPreviousStop, getResultBuilder, hashCode, initTopNAlgorithmSelector, verifyPreconditions

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

- Field Detail
  - COMPARATOR
```
protected static final Comparator<String> COMPARATOR
```
- Constructor Detail
  - AlphaNumericTopNMetricSpec
```
public AlphaNumericTopNMetricSpec(String previousStop)
```
- Method Detail
  - getComparator
```
public Comparator getComparator(List<AggregatorFactory> aggregatorSpecs,
                                List<PostAggregator> postAggregatorSpecs)
```
    Specified by:
    
    getComparator in interface TopNMetricSpec
    
    Overrides:
    
    getComparator in class LexicographicTopNMetricSpec
  - getCacheKey
```
public byte[] getCacheKey()
```
    Description copied from interface: Cacheable
    
    Get a byte array used as a cache key.
    
    Specified by:
    
    getCacheKey in interface Cacheable
    
    Overrides:
    
    getCacheKey in class LexicographicTopNMetricSpec
    
    Returns:
    
    a cache key
  - configureOptimizer
```
public <T> TopNMetricSpecBuilder<T> configureOptimizer(TopNMetricSpecBuilder<T> builder)
```
    Specified by:
    
    configureOptimizer in interface TopNMetricSpec
    
    Overrides:
    
    configureOptimizer in class LexicographicTopNMetricSpec
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class LexicographicTopNMetricSpec