org.apache.dubbo.cache.support.threadlocal

Class ThreadLocalCache

java.lang.Object

org.apache.dubbo.cache.support.threadlocal.ThreadLocalCache

All Implemented Interfaces:

Cache

public class ThreadLocalCache
extends Object
implements Cache

This class store the cache value per thread. If a service,method,consumer or provided is configured with key cache with value threadlocal, dubbo initialize the instance of this class using ThreadLocalCacheFactory to store method's returns value to server from store without making method call.

      e.g. <dubbo:service cache="threadlocal" />
  

 As this ThreadLocalCache stores key-value in memory without any expiry or delete support per thread wise, if number threads and number of key-value are high then jvm should be
 configured with appropriate memory.
 

See Also:

AbstractCacheFactory, CacheFilter, Cache

Constructor Summary

Constructors

Constructor and Description
ThreadLocalCache(URL url) Taken URL as an argument to create an instance of ThreadLocalCache.

Method Summary

Modifier and Type	Method and Description
Object	get(Object key) API to return stored value using a key against the calling thread specific store.
void	put(Object key, Object value) API to store value against a key in the calling thread scope.

Methods inherited from class java.lang.Object

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

Constructor Detail

ThreadLocalCache

public ThreadLocalCache(URL url)

Taken URL as an argument to create an instance of ThreadLocalCache. In this version of implementation constructor argument is not getting used in the scope of this class.

Parameters:

url -

Method Detail

put

public void put(Object key,
                Object value)

API to store value against a key in the calling thread scope.

Specified by:

put in interface Cache

Parameters:

key - Unique identifier for the object being store.

value - Value getting store

get

public Object get(Object key)

API to return stored value using a key against the calling thread specific store.

Specified by:

get in interface Cache

Parameters:

key - Unique identifier for cache lookup

Returns:

Return stored object against key