com.atlassian.cache

Interface CacheLoader<K,V>

Type Parameters:

K - the type of key used by the cache

V - the type of value stored in the cache

@PublicSpi
public interface CacheLoader<K,V>

Populates a cache, for example lazily upon a miss.

Since:

2.0

Method Summary

Methods

Modifier and Type	Method and Description
V	load(K key) Loads the value for the given key.

Method Detail

load

@Nonnull
V load(@Nonnull
             K key)

Loads the value for the given key.

Parameters:

key - the key for which to load the value (required)

Returns:

a non-null value; if null values are possible, e.g. when the key is a database ID that does not actually exist, declare the loader's value type to be a wrapper type such as Guava's Option<Foo> class