## org.apache.http.impl.client.cache.memcached
Interface MemcachedCacheEntry

All Known Implementing Classes:
  MemcachedCacheEntryImpl

    public interface MemcachedCacheEntry

Provides for serialization and deserialization of higher-level `HttpCacheEntry` objects into byte arrays suitable for storage in memcached. Clients wishing to change the serialization mechanism from the provided defaults should implement this interface as well as `MemcachedCacheEntryFactory`.

Method Summary
`HttpCacheEntry` `getHttpCacheEntry()` Returns the `HttpCacheEntry` associated with this entry.
`String` `getStorageKey()` Returns the storage key associated with this entry.
`void` `set(byte[] bytes)` Given a serialized representation of a `MemcachedCacheEntry`, attempt to reconstitute the storage key and `HttpCacheEntry` represented therein.
`byte[]` `toByteArray()` Returns a serialized representation of the current cache entry.

Method Detail

### toByteArray

    byte[] toByteArray()

  Returns a serialized representation of the current cache entry.

### getStorageKey

    String getStorageKey()

  Returns the storage key associated with this entry. May return `null` if this is an "unset" instance waiting to be `set(byte[])` with a serialized representation.

### getHttpCacheEntry

    HttpCacheEntry getHttpCacheEntry()

  Returns the `HttpCacheEntry` associated with this entry. May return `null` if this is an "unset" instance waiting to be `set(byte[])` with a serialized representation.

### set

    void set(byte[] bytes)

  Given a serialized representation of a `MemcachedCacheEntry`, attempt to reconstitute the storage key and `HttpCacheEntry` represented therein. After a successful call to this method, this object should return updated (as appropriate) values for `getStorageKey()` and `getHttpCacheEntry()`. This should be viewed as an atomic operation on the `MemcachedCacheEntry`.

  Parameters:
    `bytes` - serialized representation
  Throws:
    `{@link` - MemcachedSerializationException} if deserialization fails. In this case, the prior values for {`getStorageKey()` and `getHttpCacheEntry()` should remain unchanged.

Copyright © 1999-2013 The Apache Software Foundation. All Rights Reserved.