cn.xnatural.app

Class CacheSrv

java.lang.Object

cn.xnatural.app.ServerTpl

cn.xnatural.app.CacheSrv

public class CacheSrv
extends ServerTpl

简单内存缓存服务

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	CacheSrv.Record 缓存记录

Field Summary

Fields

Modifier and Type	Field and Description
protected Lazier<Map<String,CacheSrv.Record>>	_data 数据存放
protected Lazier<Map<String,Map<String,CacheSrv.Record>>>	_hashdata hash 数据缓存
protected Lazier<Integer>	_limit

Fields inherited from class cn.xnatural.app.ServerTpl

beanCtx, ep, log, name

Constructor Summary

Constructors

Constructor and Description
CacheSrv()
CacheSrv(String name)

Method Summary

Modifier and Type	Method and Description
protected void	clean() 清理过期和多余的数据 一次最多清一条 1.
int	count() 当前缓存的个数统计
Object	get(String key) 获取缓存值
Object	getAndUpdate(String key) 获取缓存值, 并更新缓存时间(即从现在开始重新计算过期时间)
Object	hget(String key, String dataKey) 获取缓存值
Object	hgetAndUpdate(String key, String dataKey) 获取缓存值, 并更新缓存时间(即从现在开始重新计算过期时间)
Object	hremove(String key, String dataKey) 移除缓存
Object	hset(String key, String dataKey, Object value) 设置缓存 取默认过期时间 30 分钟
Object	hset(String key, String dataKey, Object value, Duration expire) 设置缓存
Object	hset(String key, String dataKey, Object value, Function<CacheSrv.Record,Long> expireFn) 设置缓存
Object	remove(String key) 移除缓存
Object	set(String key, Object value) 设置缓存 取默认过期时间 30 分钟
Object	set(String key, Object value, Duration expire) 设置缓存
Object	set(String key, Object value, Function<CacheSrv.Record,Long> expireFn) 设置缓存
String	toString()

Methods inherited from class cn.xnatural.app.ServerTpl

app, async, async, attrs, bean, bean, exec, exposeBean, getAttr, getBoolean, getDouble, getFloat, getInteger, getLong, getName, getStr, localBean, localBean, localBean, queue, queue, queue, setAttr

Methods inherited from class java.lang.Object

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

Field Detail

_limit

protected final Lazier<Integer> _limit

_data

protected final Lazier<Map<String,CacheSrv.Record>> _data

数据存放

_hashdata

protected final Lazier<Map<String,Map<String,CacheSrv.Record>>> _hashdata

hash 数据缓存

Constructor Detail

CacheSrv

public CacheSrv(String name)

CacheSrv

public CacheSrv()

Method Detail

set

public Object set(String key,
                  Object value)

设置缓存 取默认过期时间 30 分钟

Parameters:

key - 缓存key

value - 缓存值

Returns:

以前的值

hset

public Object hset(String key,
                   String dataKey,
                   Object value)

设置缓存 取默认过期时间 30 分钟

Parameters:

key - 缓存key

dataKey - 数据key

value - 缓存值

Returns:

以前的值

set

@EL(name="{name}.set")
public Object set(String key,
                                         Object value,
                                         Duration expire)

设置缓存

Parameters:

key - 缓存key

value - 缓存值

expire - 过期时间

Returns:

以前的值

hset

@EL(name="{name}.hset")
public Object hset(String key,
                                           String dataKey,
                                           Object value,
                                           Duration expire)

设置缓存

Parameters:

key - 缓存key

dataKey - 数据key

value - 缓存值

expire - 过期时间

Returns:

以前的值

set

@EL(name="{name}.set2")
public Object set(String key,
                                          Object value,
                                          Function<CacheSrv.Record,Long> expireFn)

设置缓存

Parameters:

key - 缓存key

value - 缓存值

expireFn - 过期时间计算函数 函数返回过期时间点(时间缀), 返回null(不过期,除非达到缓存限制被删除)

Returns:

以前的值

hset

@EL(name="{name}.hset2")
public Object hset(String key,
                                            String dataKey,
                                            Object value,
                                            Function<CacheSrv.Record,Long> expireFn)

设置缓存

Parameters:

key - 缓存key

dataKey - 数据key

value - 缓存值

expireFn - 过期时间计算函数 函数返回过期时间点(时间缀), 返回null(不过期,除非达到缓存限制被删除)

Returns:

以前的值

remove

@EL(name="{name}.remove")
public Object remove(String key)

移除缓存

Parameters:

key - 缓存key

Returns:

缓存值

hremove

@EL(name="{name}.hremove")
public Object hremove(String key,
                                                 String dataKey)

移除缓存

Parameters:

key - 缓存key

dataKey - 数据key

Returns:

缓存值

get

@EL(name="{name}.get")
public Object get(String key)

获取缓存值

Parameters:

key - 缓存key

Returns:

缓存值

hget

@EL(name="{name}.hget")
public Object hget(String key,
                                           String dataKey)

获取缓存值

Parameters:

key - 缓存key

dataKey - 数据key

Returns:

缓存值

getAndUpdate

@EL(name="{name}.getAndUpdate")
public Object getAndUpdate(String key)

获取缓存值, 并更新缓存时间(即从现在开始重新计算过期时间)

Parameters:

key - 缓存key

Returns:

缓存值

hgetAndUpdate

@EL(name="{name}.hgetAndUpdate")
public Object hgetAndUpdate(String key,
                                                             String dataKey)

获取缓存值, 并更新缓存时间(即从现在开始重新计算过期时间)

Parameters:

key - 缓存key

dataKey - 数据key

Returns:

缓存值

clean

protected void clean()

清理过期和多余的数据 一次最多清一条 1. 如果没有达到缓存限制, 则只清理过期数据 2. 优先清理过期时间越近的 3. 过期时间一样则先清更新时间最早的

count

@EL(name="{name}.count")
public int count()

当前缓存的个数统计

toString

public String toString()

Overrides:

toString in class Object