com.alicp.jetcache

类 AbstractCache<K,V>

java.lang.Object

com.alicp.jetcache.AbstractCache<K,V>

所有已实现的接口:

Cache<K,V>, Closeable, AutoCloseable

直接已知子类:

AbstractEmbeddedCache, AbstractExternalCache, MultiLevelCache

public abstract class AbstractCache<K,V>
extends Object
implements Cache<K,V>

Created on 2016/10/7.

作者:

huangli

构造器概要

构造器

构造器和说明
AbstractCache()

方法概要

限定符和类型	方法和说明
V	computeIfAbsent(K key, Function<K,V> loader, boolean cacheNullWhenLoaderReturnNull) If there is a value associated with the key, return the value; otherwise use the loader load the value and return, and then update the cache.
V	computeIfAbsent(K key, Function<K,V> loader, boolean cacheNullWhenLoaderReturnNull, long expireAfterWrite, TimeUnit timeUnit) If there is a value associated with the key, return the value; otherwise use the loader load the value and return, and then update the cache.
MultiGetResult<K,V>	GET_ALL(Set<? extends K> keys) Gets a collection of entries from the Cache.
CacheGetResult<V>	GET(K key) Gets an entry from the cache.
void	notify(CacheEvent e)
CacheResult	PUT_ALL(Map<? extends K,? extends V> map, long expireAfterWrite, TimeUnit timeUnit) Copies all of the entries from the specified map to the cache.
CacheResult	PUT_IF_ABSENT(K key, V value, long expireAfterWrite, TimeUnit timeUnit) If the specified key is not already associated with a value, associate it with the given value.
CacheResult	PUT(K key, V value, long expireAfterWrite, TimeUnit timeUnit) Associates the specified value with the specified key in the cache.
CacheResult	REMOVE_ALL(Set<? extends K> keys) Removes entries for the specified keys.
CacheResult	REMOVE(K key) Removes the mapping for a key from this cache if it is present.

从类继承的方法 java.lang.Object

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

从接口继承的方法 com.alicp.jetcache.Cache

close, computeIfAbsent, config, get, getAll, PUT_ALL, put, PUT, put, putAll, putAll, putIfAbsent, remove, removeAll, tryLock, tryLockAndRun, unwrap

构造器详细资料

AbstractCache

public AbstractCache()

方法详细资料

notify

public void notify(CacheEvent e)

GET

public final CacheGetResult<V> GET(K key)

从接口复制的说明: Cache

Gets an entry from the cache.

if the implementation supports asynchronous operation, the cache access may not completed after this method return. The invoke of getResultCode()/isSuccess()/getMessage()/getValue() on the result will block until cache operation is completed. Call future() method on the result will get a CompletionStage instance for asynchronous programming.

指定者:

GET 在接口中 Cache<K,V>

参数:

key - the key

返回:

the result

GET_ALL

public final MultiGetResult<K,V> GET_ALL(Set<? extends K> keys)

从接口复制的说明: Cache

Gets a collection of entries from the Cache.

if the implementation supports asynchronous operation, the cache access may not completed after this method return. The invoke of getResultCode()/isSuccess()/getMessage()/getValue() on the result will block until cache operation is completed. Call future() method on the result will get a CompletionStage instance for asynchronous programming.

指定者:

GET_ALL 在接口中 Cache<K,V>

参数:

keys - the key collection

返回:

the result

computeIfAbsent

public final V computeIfAbsent(K key,
                               Function<K,V> loader,
                               boolean cacheNullWhenLoaderReturnNull)

从接口复制的说明: Cache

If there is a value associated with the key, return the value; otherwise use the loader load the value and return, and then update the cache.

指定者:

computeIfAbsent 在接口中 Cache<K,V>

参数:

key - the key

loader - the value loader

cacheNullWhenLoaderReturnNull - true if null value returned by loader should put into cache use the key

返回:

the value

computeIfAbsent

public final V computeIfAbsent(K key,
                               Function<K,V> loader,
                               boolean cacheNullWhenLoaderReturnNull,
                               long expireAfterWrite,
                               TimeUnit timeUnit)

从接口复制的说明: Cache

If there is a value associated with the key, return the value; otherwise use the loader load the value and return, and then update the cache.

指定者:

computeIfAbsent 在接口中 Cache<K,V>

参数:

key - the key

loader - the value loader

cacheNullWhenLoaderReturnNull - true if null value returned by loader should put into cache use the key

expireAfterWrite - the TTL(time to live) of the KV association

timeUnit - the time unit of expireAfterWrite

返回:

the value

PUT

public final CacheResult PUT(K key,
                             V value,
                             long expireAfterWrite,
                             TimeUnit timeUnit)

从接口复制的说明: Cache

Associates the specified value with the specified key in the cache.

if the implementation supports asynchronous operation, the cache access may not completed after this method return. The invoke of getResultCode()/isSuccess()/getMessage() on the result will block until cache operation is completed. Call future() method on the result will get a CompletionStage instance for asynchronous programming.

指定者:

PUT 在接口中 Cache<K,V>

参数:

key - key with which the specified value is to be associated

value - value to be associated with the specified key

expireAfterWrite - the TTL(time to live) of the KV association

timeUnit - the time unit of expireAfterWrite

返回:

the result

PUT_ALL

public final CacheResult PUT_ALL(Map<? extends K,? extends V> map,
                                 long expireAfterWrite,
                                 TimeUnit timeUnit)

从接口复制的说明: Cache

Copies all of the entries from the specified map to the cache.

if the implementation supports asynchronous operation, the cache access may not completed after this method return. The invoke of getResultCode()/isSuccess()/getMessage() on the result will block until cache operation is completed. Call future() method on the result will get a CompletionStage instance for asynchronous programming.

指定者:

PUT_ALL 在接口中 Cache<K,V>

参数:

map - mappings to be stored in this cache.

expireAfterWrite - the TTL(time to live) of the KV association

timeUnit - the time unit of expireAfterWrite

返回:

the result

REMOVE

public final CacheResult REMOVE(K key)

从接口复制的说明: Cache

Removes the mapping for a key from this cache if it is present.

if the implementation supports asynchronous operation, the cache access may not completed after this method return. The invoke of getResultCode()/isSuccess()/getMessage() on the result will block until cache operation is completed. Call future() method on the result will get a CompletionStage instance for asynchronous programming.

指定者:

REMOVE 在接口中 Cache<K,V>

参数:

key - key whose mapping is to be removed from the cache

返回:

the result

REMOVE_ALL

public final CacheResult REMOVE_ALL(Set<? extends K> keys)

从接口复制的说明: Cache

Removes entries for the specified keys.

if the implementation supports asynchronous operation, the cache access may not completed after this method return. The invoke of getResultCode()/isSuccess()/getMessage() on the result will block until cache operation is completed. Call future() method on the result will get a CompletionStage instance for asynchronous programming.

指定者:

REMOVE_ALL 在接口中 Cache<K,V>

参数:

keys - the keys to remove

返回:

the result

PUT_IF_ABSENT

public final CacheResult PUT_IF_ABSENT(K key,
                                       V value,
                                       long expireAfterWrite,
                                       TimeUnit timeUnit)

从接口复制的说明: Cache

If the specified key is not already associated with a value, associate it with the given value.

if the implementation supports asynchronous operation, the cache access may not completed after this method return. The invoke of getResultCode()/isSuccess()/getMessage() on the result will block until cache operation is completed. Call future() method on the result will get a CompletionStage instance for asynchronous programming.

指定者:

PUT_IF_ABSENT 在接口中 Cache<K,V>

参数:

key - key with which the specified value is to be associated

value - value to be associated with the specified key

expireAfterWrite - the TTL(time to live) of the KV association

timeUnit - the time unit of expireAfterWrite

返回:

SUCCESS if the specified key is not already associated with a value, or EXISTS if the specified key is already associated with a value, or FAIL if error occurs.