Package com.gengoai.collection.counter

Class ConcurrentHashMapMultiCounter<K,V>

java.lang.Object

com.gengoai.collection.counter.BaseMultiCounter<K,V>

com.gengoai.collection.counter.ConcurrentHashMapMultiCounter<K,V>

Type Parameters:

K - the first key type

V - the second type

All Implemented Interfaces:

MultiCounter<K,V>, Serializable

public class ConcurrentHashMapMultiCounter<K,V>
extends BaseMultiCounter<K,V>

Implementation of a MultiCounter using a ConcurrentHashMaps with ConcurrentHashMapCounter as the child counters..

Author:

David B. Bracewell

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ConcurrentHashMapMultiCounter()	Instantiates a new ConcurrentHashMapMultiCounter.
ConcurrentHashMapMultiCounter(@NonNull Collection<Tuple3<K,V,Double>> items)	Instantiates a new ConcurrentHashMapMultiCounter initializing it with the given values.

Method Summary

Modifier and Type	Method	Description
protected Counter<V>	createCounter()	Creates a new counter.
protected MultiCounter<K,V>	newInstance()	New instance.

Methods inherited from class com.gengoai.collection.counter.BaseMultiCounter

adjustValues, adjustValuesSelf, clear, contains, contains, entries, filterByFirstKey, filterBySecondKey, filterByValue, firstKeys, get, isEmpty, itemsByCount, keyPairs, merge, remove, remove, set, set, size, toString, values

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.gengoai.collection.counter.MultiCounter

average, decrement, decrement, decrementAll, decrementAll, divideByKeySum, divideBySum, get, increment, increment, incrementAll, incrementAll, magnitude, maximumCount, minimumCount, removeAll, secondKeys, setIfAbsent, standardDeviation, sum, toJson, transpose, writeCsv

Constructor Detail

ConcurrentHashMapMultiCounter

public ConcurrentHashMapMultiCounter(@NonNull
                                     @NonNull Collection<Tuple3<K,V,Double>> items)

Instantiates a new ConcurrentHashMapMultiCounter initializing it with the given values.

Parameters:

items - the items

ConcurrentHashMapMultiCounter

public ConcurrentHashMapMultiCounter()

Instantiates a new ConcurrentHashMapMultiCounter.

Method Detail

createCounter

protected Counter<V> createCounter()

Description copied from class: BaseMultiCounter

Creates a new counter.

Specified by:

createCounter in class BaseMultiCounter<K,V>

Returns:

the counter

newInstance

protected MultiCounter<K,V> newInstance()

Description copied from class: BaseMultiCounter

New instance.

Specified by:

newInstance in class BaseMultiCounter<K,V>

Returns:

the multi counter