AggregateDataDistinctWithCounts

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

```
final class AggregateDataDistinctWithCounts
extends AggregateData
```
Data stored while calculating an aggregate that needs distinct values with their counts.

Field Summary

Fields
Modifier and Type Field Description

private boolean ignoreNulls

private int maxDistinctCount

private java.util.TreeMap<Value,LongDataCounter> values

Constructor Summary

Constructors
Constructor	Description
`AggregateDataDistinctWithCounts(boolean ignoreNulls, int maxDistinctCount)`	Creates new instance of data for aggregate that needs distinct values with their counts.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`(package private) void`	`add(SessionLocal session, Value v)`	Add a value to this aggregate.
`(package private) Value`	`getValue(SessionLocal session)`	Get the aggregate result.
`(package private) java.util.TreeMap<Value,LongDataCounter>`	`getValues()`	Returns map with values and their counts.

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

- Field Detail
  - ignoreNulls
```
private final boolean ignoreNulls
```
  - maxDistinctCount
```
private final int maxDistinctCount
```
  - values
```
private java.util.TreeMap<Value,LongDataCounter> values
```
- Constructor Detail
  - AggregateDataDistinctWithCounts
```
AggregateDataDistinctWithCounts(boolean ignoreNulls,
                                int maxDistinctCount)
```
    Creates new instance of data for aggregate that needs distinct values with their counts.
    
    Parameters:
    
    ignoreNulls - whether NULL values should be ignored
    
    maxDistinctCount - maximum count of distinct values to collect
- Method Detail
  - add
```
void add(SessionLocal session,
         Value v)
```
    Description copied from class: AggregateData
    
    Add a value to this aggregate.
    
    Specified by:
    
    add in class AggregateData
    
    Parameters:
    
    session - the session
    
    v - the value
  - getValue
```
Value getValue(SessionLocal session)
```
    Description copied from class: AggregateData
    
    Get the aggregate result.
    
    Specified by:
    
    getValue in class AggregateData
    
    Parameters:
    
    session - the session
    
    Returns:
    
    the value
  - getValues
```
java.util.TreeMap<Value,LongDataCounter> getValues()
```
    Returns map with values and their counts.
    
    Returns:
    
    map with values and their counts