Package org.qiunet.utils.collection

Class CounterMap<Key>

java.lang.Object

org.qiunet.utils.collection.CounterMap<Key>

public class CounterMap<Key>
extends Object

计数map

Author:

qiunet 2020-08-28 08:30

Constructor Summary

Constructors

Constructor	Description
CounterMap()

Method Summary

Modifier and Type	Method	Description
int	decrease(Key key)	自减1
int	decrease(Key key, int alter)	自减指定值
int	getCount(Key key)	获得计数数量
int	increase(Key key)	自增1
int	increase(Key key, int alter)	自增指定值
void	remove(Key... keys)	删除指定 keys
Map<Key,Integer>	toMap()	转成map

Methods inherited from class java.lang.Object

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

Constructor Details

CounterMap

public CounterMap()

Method Details

getCount

public int getCount(Key key)

获得计数数量

Parameters:

key -

Returns:

increase

public int increase(Key key,
 int alter)

自增指定值

Parameters:

key -

alter -

Returns:

increase

public int increase(Key key)

自增1

Parameters:

key -

Returns:

decrease

public int decrease(Key key,
 int alter)

自减指定值

Parameters:

key -

alter -

Returns:

decrease

public int decrease(Key key)

自减1

Parameters:

key -

Returns:

remove

public void remove(Key... keys)

删除指定 keys

Parameters:

keys -

toMap

public Map<Key,Integer> toMap()

转成map

Returns: