Package tech.riemann.etp

Class CacheMap<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

tech.riemann.etp.CacheMap<K,V>

Type Parameters:

K -

V -

All Implemented Interfaces:

Map<K,V>

public class CacheMap<K,V>
extends AbstractMap<K,V>

Author:

Kerbores(kerbores@riemann.tech)

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Nested classes/interfaces inherited from interface java.util.Map

Map.Entry<K,V>

Constructor Summary

Constructors

Constructor	Description
CacheMap(long timeout)

Method Summary

Modifier and Type	Method	Description
Set<Map.Entry<K,V>>	entrySet()
boolean	equals(Object o)
V	get(Object key)	根据给定的键从缓存中获取值
static CacheMap<Object,Object>	getDefault()
int	hashCode()
V	put(K key, V value)	向缓存中添加一个键值对。

Methods inherited from class java.util.AbstractMap

clear, clone, containsKey, containsValue, isEmpty, keySet, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll

Constructor Details

CacheMap

public CacheMap(long timeout)

Method Details

getDefault

public static CacheMap<Object,Object> getDefault()

entrySet

public Set<Map.Entry<K,V>> entrySet()

Specified by:

entrySet in interface Map<K,V>

Specified by:

entrySet in class AbstractMap<K,V>

get

public V get(Object key)

根据给定的键从缓存中获取值

Specified by:

get in interface Map<K,V>

Overrides:

get in class AbstractMap<K,V>

Parameters:

key - 要获取值的键

Returns:

与指定键关联的值如果键不存在，则返回null

put

public V put(K key,
 V value)

向缓存中添加一个键值对。

Specified by:

put in interface Map<K,V>

Overrides:

put in class AbstractMap<K,V>

Parameters:

key - 缓存键，用于标识缓存中的项。

value - 缓存值，要添加到缓存中的数据。

Returns:

返回被替换的旧值，如果之前不存在则返回null。

equals

public boolean equals(Object o)

Specified by:

equals in interface Map<K,V>

Overrides:

equals in class AbstractMap<K,V>

hashCode

public int hashCode()

Specified by:

hashCode in interface Map<K,V>

Overrides:

hashCode in class AbstractMap<K,V>