org.tio.utils.cache

Class CacheObj<K extends Serializable,V extends Serializable>

java.lang.Object

org.tio.utils.cache.CacheObj<K,V>

Type Parameters:

K - Key类型

V - Value类型

All Implemented Interfaces:

Serializable

public class CacheObj<K extends Serializable,V extends Serializable>
extends Object
implements Serializable

缓存对象

Author:

Looly

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected AtomicLong	accessCount 访问次数
protected K	key
protected long	lastAccess 上次访问时间
protected V	obj
protected long	ttl 对象存活时长，0表示永久存活

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	CacheObj(K key, V obj, long ttl) 构造

Method Summary

Modifier and Type	Method and Description
protected V	get(boolean isUpdateLastAccess) 获取值
Date	getExpiredTime() 获取过期时间，返回null表示永不过期
K	getKey() 获取键
long	getLastAccess() 获取上次访问时间
long	getTtl() 获取对象存活时长，即超时总时长，0表示无限
V	getValue() 获取值
boolean	isExpired() 判断是否过期
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

key

protected final K extends Serializable key

obj

protected final V extends Serializable obj

lastAccess

protected volatile long lastAccess

上次访问时间

accessCount

protected final AtomicLong accessCount

访问次数

ttl

protected final long ttl

对象存活时长，0表示永久存活

Constructor Detail

CacheObj

protected CacheObj(K key,
                   V obj,
                   long ttl)

构造

Parameters:

key - 键

obj - 值

ttl - 超时时长

Method Detail

getKey

public K getKey()

获取键

Returns:

键

Since:

4.0.10

getValue

public V getValue()

获取值

Returns:

值

Since:

4.0.10

getTtl

public long getTtl()

获取对象存活时长，即超时总时长，0表示无限

Returns:

对象存活时长

Since:

5.7.17

getExpiredTime

public Date getExpiredTime()

获取过期时间，返回null表示永不过期

Returns:

此对象的过期时间，返回null表示永不过期

Since:

5.7.17

getLastAccess

public long getLastAccess()

获取上次访问时间

Returns:

上次访问时间

Since:

5.7.17

toString

public String toString()

Overrides:

toString in class Object

isExpired

public boolean isExpired()

判断是否过期

Returns:

是否过期

get

protected V get(boolean isUpdateLastAccess)

获取值

Parameters:

isUpdateLastAccess - 是否更新最后访问时间

Returns:

获得对象

Since:

4.0.10