org.onosproject.store.hz

Class OptionalCacheLoader<K,V>

java.lang.Object

com.google.common.cache.CacheLoader<K,com.google.common.base.Optional<V>>

org.onosproject.store.hz.OptionalCacheLoader<K,V>

Type Parameters:

K - IMap key type after deserialization

V - IMap value type after deserialization

public final class OptionalCacheLoader<K,V>
extends com.google.common.cache.CacheLoader<K,com.google.common.base.Optional<V>>

CacheLoader to wrap Map value with Optional, to handle negative hit on underlying IMap.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.common.cache.CacheLoader

com.google.common.cache.CacheLoader.InvalidCacheLoadException

Constructor Summary

Constructors

Constructor and Description
OptionalCacheLoader(org.onosproject.store.serializers.StoreSerializer serializer, com.hazelcast.core.IMap<byte[],byte[]> rawMap) Constructor.

Method Summary

Modifier and Type	Method and Description
com.google.common.base.Optional<V>	load(K key)

Methods inherited from class com.google.common.cache.CacheLoader

asyncReloading, from, from, loadAll, reload

Methods inherited from class java.lang.Object

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

Constructor Detail

OptionalCacheLoader

public OptionalCacheLoader(org.onosproject.store.serializers.StoreSerializer serializer,
                           com.hazelcast.core.IMap<byte[],byte[]> rawMap)

Constructor.

Parameters:

serializer - to use for serialization

rawMap - underlying IMap

Method Detail

load

public com.google.common.base.Optional<V> load(K key)
                                        throws Exception

Specified by:

load in class com.google.common.cache.CacheLoader<K,com.google.common.base.Optional<V>>

Throws:

Exception