com.centit.support.common

类 DerivativeCachedMap<K,D,T>

java.lang.Object

com.centit.support.common.AbstractCachedObject<Map<K,T>>

com.centit.support.common.DerivativeCachedMap<K,D,T>

类型参数:

K - id 键值类型

T - target 缓存对象的类型

所有已实现的接口:

ICachedObject<Map<K,T>>

public class DerivativeCachedMap<K,D,T>
extends AbstractCachedObject<Map<K,T>>

用 ConcurrentHashMap 缓存对象，每个对象 自己维护缓存策略

字段概要

从类继承的字段 com.centit.support.common.AbstractCachedObject

deriveCaches, evicted

从接口继承的字段 com.centit.support.common.ICachedObject

KEEP_FRESH_PERIOD, NOT_REFRESH_PERIOD

构造器概要

构造器

构造器和说明
DerivativeCachedMap(Function<D,T> refresher, CachedMap<K,D> parentCache)
DerivativeCachedMap(Function<D,T> refresher, CachedMap<K,D> parentCache, int initialCapacity) 构造函数

方法概要

限定符和类型	方法和说明
void	evictCahce()
void	evictIdentifiedCache(K key)
T	getCachedValue(K key)
Map<K,T>	getRawTarget()
void	setFreshPeriod(int freshPeriod)
void	setRefresher(Function<D,T> refresher)

从类继承的方法 com.centit.support.common.AbstractCachedObject

addDeriveCache, evictDerivativeCahce

从类继承的方法 java.lang.Object

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

构造器详细资料

DerivativeCachedMap

public DerivativeCachedMap(Function<D,T> refresher,
                           CachedMap<K,D> parentCache,
                           int initialCapacity)

构造函数

参数:

refresher - 重新获取代码的接口

parentCache - 保鲜时间，单位为秒；也是重新刷新时间 它的意思不是每隔一段时间就刷新，而是在获取数据是检查是否超时，如果超时则刷新

initialCapacity - The implementation performs internal sizing to accommodate this many elements.

DerivativeCachedMap

public DerivativeCachedMap(Function<D,T> refresher,
                           CachedMap<K,D> parentCache)

方法详细资料

setRefresher

public void setRefresher(Function<D,T> refresher)

setFreshPeriod

public void setFreshPeriod(int freshPeriod)

evictIdentifiedCache

public void evictIdentifiedCache(K key)

evictCahce

public void evictCahce()

指定者:

evictCahce 在接口中 ICachedObject<Map<K,T>>

覆盖:

evictCahce 在类中 AbstractCachedObject<Map<K,T>>

getCachedValue

public T getCachedValue(K key)

getRawTarget

public Map<K,T> getRawTarget()