Package com.ssgllc.fish.f.list

Class ValueReducer.Reducer<U,V>

java.lang.Object

com.ssgllc.fish.f.list.ValueReducer.Reducer<U,V>

Enclosing class:

ValueReducer<U,V>

public static class ValueReducer.Reducer<U,V>
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	ValueReducer.Reducer.Iteration<U,V>

Field Summary

Fields

Modifier and Type	Field	Description
ValueReducer.Reducer<U,V>	acc
List<ValueReducer.Reducer.Iteration<U,V>>	forEach
V	prev

Constructor Summary

Constructors

Constructor	Description
Reducer(List<U> items, V initialValue)

Method Summary

Modifier and Type	Method	Description
V	result()	The accumulated value, once every iteration has run.
void	updatePrev(V newPrev)	Replaces the accumulated value.

Methods inherited from class java.lang.Object

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

Field Details

forEach

public List<ValueReducer.Reducer.Iteration<U,V>> forEach

acc

public ValueReducer.Reducer<U,V> acc

prev

public V prev

Constructor Details

Reducer

public Reducer(List<U> items,
 V initialValue)

Method Details

updatePrev

public void updatePrev(V newPrev)

Replaces the accumulated value. Called for you by ValueReducer.Reducer.Iteration.put(Object); there is no reason to call it directly.

Parameters:

newPrev - the new accumulated value

result

public V result()

The accumulated value, once every iteration has run.

Returns:

the folded result