Package uk.gov.gchq.koryphe.binaryoperator

Class BinaryOperatorMap<K,T>

java.lang.Object

uk.gov.gchq.koryphe.binaryoperator.KorypheBinaryOperator<Map<K,T>>

uk.gov.gchq.koryphe.binaryoperator.BinaryOperatorMap<K,T>

Type Parameters:

K - Type of key

T - Input/output type

All Implemented Interfaces:

BiFunction<Map<K,T>,Map<K,T>,Map<K,T>>, BinaryOperator<Map<K,T>>

public class BinaryOperatorMap<K,T>
extends KorypheBinaryOperator<Map<K,T>>

Applies a BinaryOperator to the values of an input Map, combining values with matching keys.

Constructor Summary

Constructors

Constructor	Description
BinaryOperatorMap()	Default - for serialisation.
BinaryOperatorMap(BinaryOperator<? super T> binaryOperator)

Method Summary

Modifier and Type	Method	Description
Map<K,T>	_apply(Map<K,T> state, Map<K,T> input)	Iterate through the values of an input map, folding them into the state map using the wrapped BinaryOperator.
BinaryOperator<? super T>	getBinaryOperator()
void	setBinaryOperator(BinaryOperator<? super T> binaryOperator)

Methods inherited from class uk.gov.gchq.koryphe.binaryoperator.KorypheBinaryOperator

apply, equals, hashCode

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.BiFunction

andThen

Constructor Detail

BinaryOperatorMap

public BinaryOperatorMap()

Default - for serialisation.

BinaryOperatorMap

public BinaryOperatorMap(BinaryOperator<? super T> binaryOperator)

Method Detail

setBinaryOperator

public void setBinaryOperator(BinaryOperator<? super T> binaryOperator)

getBinaryOperator

public BinaryOperator<? super T> getBinaryOperator()

_apply

public Map<K,T> _apply(Map<K,T> state,
                             Map<K,T> input)

Iterate through the values of an input map, folding them into the state map using the wrapped BinaryOperator.

Parameters:

state - Current state map.

input - New input map.

Returns:

New state map.