Class CountMap<K>

java.lang.Object

cool.scx.collections.count_map.CountMap<K>

All Implemented Interfaces:

ICountMap<K>, Iterable<ICountMapEntry<K>>

public class CountMap<K>
extends Object
implements ICountMap<K>

CountMap

Version:

0.0.1

Author:

scx567888

Constructor Summary

Constructors

Constructor	Description
CountMap()	默认内部 map 使用 HashMap
CountMap(Supplier<Map<K, AtomicLong>> mapSupplier)	指定内部的 map 实现

Method Summary

Modifier and Type	Method	Description
long	add(K key, long count)	返回 添加后的数量
void	clear()
boolean	containsKey(K key)
<E extends Throwable> void	forEach(cool.scx.functional.ScxObjLongConsumer<? super K, E> action)
Long	get(K key)	返回 数量 (可为空)
boolean	isEmpty()
Iterator<ICountMapEntry<K>>	iterator()
Set<K>	keys()
Long	remove(K key)	返回 之前的数量 (可为空)
Long	set(K key, long count)	返回 之前的数量 (可为空)
long	size()
Map<K,Long>	toMap()
Map<K,Long>	toMap(Supplier<Map<K,Long>> mapSupplier)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

CountMap

public CountMap()

默认内部 map 使用 HashMap

CountMap

public CountMap(Supplier<Map<K, AtomicLong>> mapSupplier)

指定内部的 map 实现

Method Details

add

public long add(K key,
 long count)

Description copied from interface: ICountMap

返回 添加后的数量

Specified by:

add in interface ICountMap<K>

set

public Long set(K key,
 long count)

Description copied from interface: ICountMap

返回 之前的数量 (可为空)

Specified by:

set in interface ICountMap<K>

get

public Long get(K key)

Description copied from interface: ICountMap

返回 数量 (可为空)

Specified by:

get in interface ICountMap<K>

containsKey

public boolean containsKey(K key)

Specified by:

containsKey in interface ICountMap<K>

remove

public Long remove(K key)

Description copied from interface: ICountMap

返回 之前的数量 (可为空)

Specified by:

remove in interface ICountMap<K>

keys

public Set<K> keys()

Specified by:

keys in interface ICountMap<K>

size

public long size()

Specified by:

size in interface ICountMap<K>

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface ICountMap<K>

clear

public void clear()

Specified by:

clear in interface ICountMap<K>

toMap

public Map<K,Long> toMap()

Specified by:

toMap in interface ICountMap<K>

toMap

public Map<K,Long> toMap(Supplier<Map<K,Long>> mapSupplier)

Specified by:

toMap in interface ICountMap<K>

forEach

public <E extends Throwable> void forEach(cool.scx.functional.ScxObjLongConsumer<? super K, E> action)
                                   throws E

Specified by:

forEach in interface ICountMap<K>

Throws:

E

iterator

public Iterator<ICountMapEntry<K>> iterator()

Specified by:

iterator in interface Iterable<K>

toString

public String toString()

Overrides:

toString in class Object