org.apache.http.impl.client.cache.memcached
Class MemcachedCacheEntryFactoryImpl

java.lang.Object
  org.apache.http.impl.client.cache.memcached.MemcachedCacheEntryFactoryImpl

All Implemented Interfaces:

MemcachedCacheEntryFactory

public class MemcachedCacheEntryFactoryImpl
extends Object
implements MemcachedCacheEntryFactory

Default implementation of MemcachedCacheEntryFactory.

Constructor Summary

MemcachedCacheEntryFactoryImpl()

Method Summary

MemcachedCacheEntry	getMemcachedCacheEntry(String key, HttpCacheEntry entry) Creates a new MemcachedCacheEntry for storing the given HttpCacheEntry under the given storage key.
MemcachedCacheEntry	getUnsetCacheEntry() Creates an "unset" MemcachedCacheEntry ready to accept a serialized representation via MemcachedCacheEntry.set(byte[]) and deserialize it into a storage key and a HttpCacheEntry.

Methods inherited from class java.lang.Object

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

Constructor Detail

MemcachedCacheEntryFactoryImpl

public MemcachedCacheEntryFactoryImpl()

Method Detail

getMemcachedCacheEntry

public MemcachedCacheEntry getMemcachedCacheEntry(String key,
                                                  HttpCacheEntry entry)

Description copied from interface: MemcachedCacheEntryFactory

Creates a new MemcachedCacheEntry for storing the given HttpCacheEntry under the given storage key. Since we are hashing storage keys into cache keys to accommodate limitations in memcached's key space, it is possible to have cache collisions. Therefore, we store the storage key along with the HttpCacheEntry so it can be compared on retrieval and thus detect collisions.

Specified by:

getMemcachedCacheEntry in interface MemcachedCacheEntryFactory

Parameters:

key - storage key under which the entry will be logically stored

entry - the cache entry to store

Returns:

a MemcachedCacheEntry ready to provide a serialized representation

getUnsetCacheEntry

public MemcachedCacheEntry getUnsetCacheEntry()

Description copied from interface: MemcachedCacheEntryFactory

Creates an "unset" MemcachedCacheEntry ready to accept a serialized representation via MemcachedCacheEntry.set(byte[]) and deserialize it into a storage key and a HttpCacheEntry.

Specified by:

getUnsetCacheEntry in interface MemcachedCacheEntryFactory

Returns:

MemcachedCacheEntry