Package com.gengoai.collection.counter

Class ConcurrentHashMapCounter<T>

java.lang.Object

com.gengoai.collection.counter.BaseMapCounter<T>

com.gengoai.collection.counter.ConcurrentHashMapCounter<T>

Type Parameters:

T - the component type of the counter

All Implemented Interfaces:

Counter<T>, Copyable<Counter<T>>, Serializable

public class ConcurrentHashMapCounter<T>
extends BaseMapCounter<T>

Implementation of a Counter using a ConcurrentHashMap

Author:

David B. Bracewell

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ConcurrentHashMapCounter()	Instantiates a new Concurrent hash map counter.
ConcurrentHashMapCounter(@NonNull Map<T,Double> map)

Method Summary

Modifier and Type	Method	Description
protected <R> Counter<R>	newInstance()	New instance counter.

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

adjustValues, adjustValuesSelf, asMap, bottomN, clear, contains, copy, divideBySum, entries, filterByKey, filterByValue, get, increment, isEmpty, items, itemsByCount, mapKeys, merge, merge, remove, removeAll, set, size, sum, topN, 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.Counter

average, decrement, decrement, decrementAll, decrementAll, forEach, increment, incrementAll, incrementAll, magnitude, max, maximumCount, min, minimumCount, sample, sample, standardDeviation, writeCsv

Constructor Detail

ConcurrentHashMapCounter

public ConcurrentHashMapCounter()

Instantiates a new Concurrent hash map counter.

ConcurrentHashMapCounter

public ConcurrentHashMapCounter(@NonNull
                                @NonNull Map<T,Double> map)

Method Detail

newInstance

protected <R> Counter<R> newInstance()

Description copied from class: BaseMapCounter

New instance counter.

Specified by:

newInstance in class BaseMapCounter<T>

Type Parameters:

R - the type parameter

Returns:

the counter