GenericUDAFRank.GenericUDAFHypotheticalSetRankEvaluator.HypotheticalSetRankBuffer (Hive Query Language 4.0.0 API)

java.lang.Object
- org.apache.hadoop.hive.ql.udf.generic.GenericUDAFEvaluator.AbstractAggregationBuffer
- - org.apache.hadoop.hive.ql.udf.generic.GenericUDAFRank.GenericUDAFHypotheticalSetRankEvaluator.HypotheticalSetRankBuffer

All Implemented Interfaces:: GenericUDAFEvaluator.AggregationBuffer

Enclosing class:: GenericUDAFRank.GenericUDAFHypotheticalSetRankEvaluator

protected static class GenericUDAFRank.GenericUDAFHypotheticalSetRankEvaluator.HypotheticalSetRankBuffer
extends GenericUDAFEvaluator.AbstractAggregationBuffer

- Field Summary
  
  Fields
  Modifier and Type Field and Description
  
  protected long rank
  
  protected long rowCount
- Constructor Summary
  
  Constructors
  Modifier Constructor and Description
  
  protected HypotheticalSetRankBuffer()
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method and Description
  
  int estimate()
  Estimate the size of memory which is occupied by aggregation buffer.
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Fields
Modifier and Type	Field and Description
`protected long`	`rank`
`protected long`	`rowCount`

Constructors
Modifier	Constructor and Description
`protected`	`HypotheticalSetRankBuffer()`

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`estimate()` Estimate the size of memory which is occupied by aggregation buffer.

- Field Detail
  - rank
```
protected long rank
```
  - rowCount
```
protected long rowCount
```
- Constructor Detail
  - HypotheticalSetRankBuffer
```
protected HypotheticalSetRankBuffer()
```
- Method Detail
  - estimate
```
public int estimate()
```
    Description copied from class: GenericUDAFEvaluator.AbstractAggregationBuffer
    
    Estimate the size of memory which is occupied by aggregation buffer. Currently, hive assumes that primitives types occupies 16 byte and java object has 64 byte overhead for each. For map, each entry also has 64 byte overhead.
    
    Overrides:
    
    estimate in class GenericUDAFEvaluator.AbstractAggregationBuffer

Class GenericUDAFRank.GenericUDAFHypotheticalSetRankEvaluator.HypotheticalSetRankBuffer

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

rank

rowCount

Constructor Detail

HypotheticalSetRankBuffer

Method Detail

estimate