io.werval.spi.cache

Class MapCache

java.lang.Object

io.werval.spi.cache.CacheAdapter

io.werval.spi.cache.MapCache

All Implemented Interfaces:

Cache

public class MapCache
extends CacheAdapter

In-Memory Cache backed by a ConcurrentHashMap.

This is the default Cache Extension used if your Application do not declare any Cache Plugin.

Expiration is applied on access only. This may not suit your usage pattern.

No metrics gathered.

See the the EhCache, Memcache and Redis based Cache Plugins for alternatives.

Nested Class Summary

Nested classes/interfaces inherited from class io.werval.spi.cache.CacheAdapter

CacheAdapter.CacheEvent

Field Summary

Fields

Modifier and Type	Field and Description
protected ConcurrentMap<String,Couple<Long,Object>>	map

Constructor Summary

Constructors

Constructor and Description
MapCache()

Method Summary

Modifier and Type	Method and Description
protected <T> T	doGet(String key) Concrete GET.
protected void	doRemove(String key) Concrete REMOVE.
protected <T> void	doSet(int ttlSeconds, String key, T value) Concrete SET.

Methods inherited from class io.werval.spi.cache.CacheAdapter

get, getOptional, getOrSetDefault, getOrSetDefault, getOrSetDefault, getOrSetDefault, has, remove, set, set

Methods inherited from class java.lang.Object

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

Field Detail

map

protected final ConcurrentMap<String,Couple<Long,Object>> map

Constructor Detail

MapCache

public MapCache()

Method Detail

doGet

protected <T> T doGet(String key)

Description copied from class: CacheAdapter

Concrete GET.

Specified by:

doGet in class CacheAdapter

Type Parameters:

T - Parameterized type of value

Parameters:

key - Cache Key

Returns:

Value or null

doSet

protected <T> void doSet(int ttlSeconds,
                         String key,
                         T value)

Description copied from class: CacheAdapter

Concrete SET.

Specified by:

doSet in class CacheAdapter

Type Parameters:

T - Parameterized type of value

Parameters:

ttlSeconds - TTL in seconds

key - Cache Key

value - Value

doRemove

protected void doRemove(String key)

Description copied from class: CacheAdapter

Concrete REMOVE.

Specified by:

doRemove in class CacheAdapter

Parameters:

key - Cache Key