com.hazelcast.mapreduce.aggregation
Class Aggregations

java.lang.Object
  com.hazelcast.mapreduce.aggregation.Aggregations

@Beta
public final class Aggregations
extends Object

This class is used to access the Hazelcast predefined set of aggregations in a type-safe way.

Since:

3.3

Method Summary

static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal>	bigDecimalAvg() Returns an aggregation to calculate the BigDecimal average of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal>	bigDecimalMax() Returns an aggregation to find the BigDecimal maximum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal>	bigDecimalMin() Returns an aggregation to find the BigDecimal minimum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal>	bigDecimalSum() Returns an aggregation to calculate the BigDecimal sum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,BigInteger,BigInteger>	bigIntegerAvg() Returns an aggregation to calculate the BigInteger average of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,BigInteger,BigInteger>	bigIntegerMax() Returns an aggregation to find the BigInteger maximum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,BigInteger,BigInteger>	bigIntegerMin() Returns an aggregation to find the BigInteger minimum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,BigInteger,BigInteger>	bigIntegerSum() Returns an aggregation to calculate the BigInteger sum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Comparable,Comparable>	comparableMax() Returns an aggregation to find the maximum value of all supplied Comparable implementing values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Comparable,Comparable>	comparableMin() Returns an aggregation to find the minimum value of all supplied Comparable implementing values. This aggregation is similar to:
static <Key> Aggregation<Key,Object,Long>	count() Returns an aggregation for counting all supplied values. This aggregation is similar to:
static <Key,Value,DistinctType> Aggregation<Key,Value,Set<DistinctType>>	distinctValues() Returns an aggregation for selecting all distinct values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Double,Double>	doubleAvg() Returns an aggregation to calculate the double average of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Double,Double>	doubleMax() Returns an aggregation to find the double maximum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Double,Double>	doubleMin() Returns an aggregation to find the double minimum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Double,Double>	doubleSum() Returns an aggregation to calculate the double sum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Value,Integer>	integerAvg() Returns an aggregation to calculate the integer average of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Integer,Integer>	integerMax() Returns an aggregation to find the integer maximum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Integer,Integer>	integerMin() Returns an aggregation to find the integer minimum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Integer,Integer>	integerSum() Returns an aggregation to calculate the integer sum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Long,Long>	longAvg() Returns an aggregation to calculate the long average of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Long,Long>	longMax() Returns an aggregation to find the long maximum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Long,Long>	longMin() Returns an aggregation to find the long minimum of all supplied values. This aggregation is similar to:
static <Key,Value> Aggregation<Key,Long,Long>	longSum() Returns an aggregation to calculate the long sum of all supplied values. This aggregation is similar to:

Methods inherited from class java.lang.Object

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

Method Detail

count

public static <Key> Aggregation<Key,Object,Long> count()

Returns an aggregation for counting all supplied values.
This aggregation is similar to:

SELECT COUNT(*) FROM x

Type Parameters:

Key - the input key type

Returns:

the count of all supplied elements

distinctValues

public static <Key,Value,DistinctType> Aggregation<Key,Value,Set<DistinctType>> distinctValues()

Returns an aggregation for selecting all distinct values.
This aggregation is similar to:

SELECT DISTINCT * FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

DistinctType - the type of all distinct values

Returns:

a Set containing all distinct values

integerAvg

public static <Key,Value> Aggregation<Key,Value,Integer> integerAvg()

Returns an aggregation to calculate the integer average of all supplied values.
This aggregation is similar to:

SELECT AVG(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the average over all supplied values

integerSum

public static <Key,Value> Aggregation<Key,Integer,Integer> integerSum()

Returns an aggregation to calculate the integer sum of all supplied values.
This aggregation is similar to:

SELECT SUM(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the sum over all supplied values

integerMin

public static <Key,Value> Aggregation<Key,Integer,Integer> integerMin()

Returns an aggregation to find the integer minimum of all supplied values.
This aggregation is similar to:

SELECT MIN(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the minimum value over all supplied values

integerMax

public static <Key,Value> Aggregation<Key,Integer,Integer> integerMax()

Returns an aggregation to find the integer maximum of all supplied values.
This aggregation is similar to:

SELECT MAX(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the maximum value over all supplied values

longAvg

public static <Key,Value> Aggregation<Key,Long,Long> longAvg()

Returns an aggregation to calculate the long average of all supplied values.
This aggregation is similar to:

SELECT AVG(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the average over all supplied values

longSum

public static <Key,Value> Aggregation<Key,Long,Long> longSum()

Returns an aggregation to calculate the long sum of all supplied values.
This aggregation is similar to:

SELECT SUM(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the sum over all supplied values

longMin

public static <Key,Value> Aggregation<Key,Long,Long> longMin()

Returns an aggregation to find the long minimum of all supplied values.
This aggregation is similar to:

SELECT MIN(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the minimum value over all supplied values

longMax

public static <Key,Value> Aggregation<Key,Long,Long> longMax()

Returns an aggregation to find the long maximum of all supplied values.
This aggregation is similar to:

SELECT MAX(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the maximum value over all supplied values

doubleAvg

public static <Key,Value> Aggregation<Key,Double,Double> doubleAvg()

Returns an aggregation to calculate the double average of all supplied values.
This aggregation is similar to:

SELECT AVG(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the average over all supplied values

doubleSum

public static <Key,Value> Aggregation<Key,Double,Double> doubleSum()

Returns an aggregation to calculate the double sum of all supplied values.
This aggregation is similar to:

SELECT SUM(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the sum over all supplied values

doubleMin

public static <Key,Value> Aggregation<Key,Double,Double> doubleMin()

Returns an aggregation to find the double minimum of all supplied values.
This aggregation is similar to:

SELECT MIN(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the minimum value over all supplied values

doubleMax

public static <Key,Value> Aggregation<Key,Double,Double> doubleMax()

Returns an aggregation to find the double maximum of all supplied values.
This aggregation is similar to:

SELECT MAX(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the maximum value over all supplied values

bigDecimalAvg

public static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal> bigDecimalAvg()

Returns an aggregation to calculate the BigDecimal average of all supplied values.
This aggregation is similar to:

SELECT AVG(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the average over all supplied values

bigDecimalSum

public static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal> bigDecimalSum()

Returns an aggregation to calculate the BigDecimal sum of all supplied values.
This aggregation is similar to:

SELECT SUM(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the sum over all supplied values

bigDecimalMin

public static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal> bigDecimalMin()

Returns an aggregation to find the BigDecimal minimum of all supplied values.
This aggregation is similar to:

SELECT MIN(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the minimum value over all supplied values

bigDecimalMax

public static <Key,Value> Aggregation<Key,BigDecimal,BigDecimal> bigDecimalMax()

Returns an aggregation to find the BigDecimal maximum of all supplied values.
This aggregation is similar to:

SELECT MAX(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the maximum value over all supplied values

bigIntegerAvg

public static <Key,Value> Aggregation<Key,BigInteger,BigInteger> bigIntegerAvg()

Returns an aggregation to calculate the BigInteger average of all supplied values.
This aggregation is similar to:

SELECT AVG(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the average over all supplied values

bigIntegerSum

public static <Key,Value> Aggregation<Key,BigInteger,BigInteger> bigIntegerSum()

Returns an aggregation to calculate the BigInteger sum of all supplied values.
This aggregation is similar to:

SELECT SUM(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the sum over all supplied values

bigIntegerMin

public static <Key,Value> Aggregation<Key,BigInteger,BigInteger> bigIntegerMin()

Returns an aggregation to find the BigInteger minimum of all supplied values.
This aggregation is similar to:

SELECT MIN(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the minimum value over all supplied values

bigIntegerMax

public static <Key,Value> Aggregation<Key,BigInteger,BigInteger> bigIntegerMax()

Returns an aggregation to find the BigInteger maximum of all supplied values.
This aggregation is similar to:

SELECT MAX(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the maximum value over all supplied values

comparableMin

public static <Key,Value> Aggregation<Key,Comparable,Comparable> comparableMin()

Returns an aggregation to find the minimum value of all supplied Comparable implementing values.
This aggregation is similar to:

SELECT MIN(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the minimum value over all supplied values

comparableMax

public static <Key,Value> Aggregation<Key,Comparable,Comparable> comparableMax()

Returns an aggregation to find the maximum value of all supplied Comparable implementing values.
This aggregation is similar to:

SELECT MAX(value) FROM x

Type Parameters:

Key - the input key type

Value - the supplied value type

Returns:

the maximum value over all supplied values