Examples of com.googlecode.objectify.cache.EntityMemcache

com.googlecode.objectify.cache.EntityMemcache

This is the facade used by Objectify to cache entities in the MemcacheService.

Entity cacheability and expiration are determined by a {@code CacheControl} object.In addition, hit/miss statistics are tracked in a {@code MemcacheStats}.

In order to guarantee cache synchronization, getAll() *must* be able to return an IdentifiableValue, even for entries not present in the cache. Because empty cache values cannot be made into IdentifiableValue, we immediately replace them with a null value and refetch (null is a valid cache value). If this refetch doesn't work, we treat the key as uncacheable for the duration of the request.

The values put in memcache are Key -> Entity, except for negative cache entries, which are Key -> String (the value NEGATIVE).

@author Jeff Schnitzer

  /**
   */
  @BeforeMethod
  public void setUpExtra()
  {
    EntityMemcache mc = new EntityMemcache(null);
    cads = new CachingAsyncDatastoreService(DatastoreServiceFactory.getAsyncDatastoreService(), mc);
    nods = new CachingAsyncDatastoreService(new MockAsyncDatastoreService(), mc);
    
    key = KeyFactory.createKey("thing", 1);
    keyInSet = Collections.singleton(key);

Examples of com.googlecode.objectify.cache.EntityMemcache

Related Classes of com.googlecode.objectify.cache.EntityMemcache