Package com.treemap

Class AggregationFactory

java.lang.Object

com.treemap.AggregationFactory

public class AggregationFactory
extends Object

Factory class for accessing predefined aggregation schemes.

Field Summary

Fields

Modifier and Type	Field	Description
static final Aggregation	AVERAGE_AGGREGATION	Aggregate values by averaging them.
static final Aggregation	COUNT_AGGREGATION	Aggregate values by counting them.
static final Aggregation	MAX_AGGREGATION	Aggregate values by finding the maximum value.
static final Aggregation	MIN_AGGREGATION	Aggregate values by finding the minimum value.
static final Aggregation	NONE_AGGREGATION	Aggregate values by always returning null.
static final Aggregation	SIZE_WEIGHTED_AGGREGATION	Aggregate values by averaging them.
static final Aggregation	STD_DEV_AGGREGATION	Aggregate values by computing the standard deviation.
static final Aggregation	SUM_AGGREGATION	Aggregate values by computing the sum.

Constructor Summary

Constructors

Constructor	Description
AggregationFactory(Aggregation... entries)

Method Summary

Modifier and Type	Method	Description
void	add(Aggregation entry)
Aggregation	find(String name)
Aggregation	get(String name)
List<Aggregation>	getAggregations()
Aggregation	getDefault()
static AggregationFactory	getInstance()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

NONE_AGGREGATION

public static final Aggregation NONE_AGGREGATION

Aggregate values by always returning null.

SUM_AGGREGATION

public static final Aggregation SUM_AGGREGATION

Aggregate values by computing the sum.

SIZE_WEIGHTED_AGGREGATION

public static final Aggregation SIZE_WEIGHTED_AGGREGATION

Aggregate values by averaging them.

AVERAGE_AGGREGATION

public static final Aggregation AVERAGE_AGGREGATION

Aggregate values by averaging them.

COUNT_AGGREGATION

public static final Aggregation COUNT_AGGREGATION

Aggregate values by counting them.

MIN_AGGREGATION

public static final Aggregation MIN_AGGREGATION

Aggregate values by finding the minimum value.

MAX_AGGREGATION

public static final Aggregation MAX_AGGREGATION

Aggregate values by finding the maximum value.

STD_DEV_AGGREGATION

public static final Aggregation STD_DEV_AGGREGATION

Aggregate values by computing the standard deviation.

Constructor Details

AggregationFactory

public AggregationFactory(Aggregation... entries)

Method Details

getInstance

public static AggregationFactory getInstance()

add

public void add(Aggregation entry)

getDefault

public Aggregation getDefault()

getAggregations

public List<Aggregation> getAggregations()

get

public Aggregation get(String name)

find

public Aggregation find(String name)