AggregateData

java.lang.Object
- org.h2.expression.aggregate.AggregateData

Direct Known Subclasses:

AggregateDataAvg, AggregateDataBinarySet, AggregateDataCollecting, AggregateDataCount, AggregateDataDefault, AggregateDataDistinctWithCounts, AggregateDataEnvelope, AggregateDataStdVar
```
abstract class AggregateData
extends java.lang.Object
```
Abstract class for the computation of an aggregate.

Constructor Summary

Constructors
Constructor Description

AggregateData()

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`(package private) abstract void`	`add(SessionLocal session, Value v)`	Add a value to this aggregate.
`(package private) abstract Value`	`getValue(SessionLocal session)`	Get the aggregate result.

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

- Constructor Detail
  - AggregateData
```
AggregateData()
```
- Method Detail
  - add
```
abstract void add(SessionLocal session,
                  Value v)
```
    Add a value to this aggregate.
    
    Parameters:
    
    session - the session
    
    v - the value
  - getValue
```
abstract Value getValue(SessionLocal session)
```
    Get the aggregate result.
    
    Parameters:
    
    session - the session
    
    Returns:
    
    the value