org.opendaylight.infrautils.caches.baseimpl

Class DelegatingNullSafeCache<K,V>

java.lang.Object

com.google.common.collect.ForwardingObject

org.opendaylight.infrautils.caches.baseimpl.DelegatingNullSafeBaseCache<K,V>

org.opendaylight.infrautils.caches.baseimpl.DelegatingNullSafeCache<K,V>

All Implemented Interfaces:

AutoCloseable, BaseCache<K,V>, Cache<K,V>

public final class DelegatingNullSafeCache<K,V>
extends DelegatingNullSafeBaseCache<K,V>
implements Cache<K,V>

Cache with null handling, useful for API implementors (not users).

Author:

Michael Vorburger.ch

Constructor Summary

Constructors

Constructor and Description
DelegatingNullSafeCache(Cache<K,V> delegate)

Method Summary

Modifier and Type	Method and Description
protected Cache<K,V>	delegate()
com.google.common.collect.ImmutableMap<K,V>	get(Iterable<? extends K> keys) Get several cache entries, in one go.
V	get(K key) Get cache entry.

Methods inherited from class org.opendaylight.infrautils.caches.baseimpl.DelegatingNullSafeBaseCache

asMap, checkNonNullKeys, checkReturnValue, checkReturnValue, close, evict, getManager, put

Methods inherited from class com.google.common.collect.ForwardingObject

toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.opendaylight.infrautils.caches.Cache

get

Methods inherited from interface org.opendaylight.infrautils.caches.BaseCache

asMap, evict, getManager, put

Methods inherited from interface java.lang.AutoCloseable

close

Constructor Detail

DelegatingNullSafeCache

public DelegatingNullSafeCache(Cache<K,V> delegate)

Method Detail

delegate

protected Cache<K,V> delegate()

Specified by:

delegate in class DelegatingNullSafeBaseCache<K,V>

get

public V get(K key)

Description copied from interface: Cache

Get cache entry. If the cache does not currently contain an entry under this key, then one is created, using the CacheFunction given when the cache was created.

Specified by:

get in interface Cache<K,V>

Parameters:

key - key of cache entry

Returns:

value, never null (but may be an Optional)

get

public com.google.common.collect.ImmutableMap<K,V> get(Iterable<? extends K> keys)

Description copied from interface: Cache

Get several cache entries, in one go.

Specified by:

get in interface Cache<K,V>

Parameters:

keys - list of keys of cache entries

Returns:

Map of cache keys and values (neither ever null, but may be an Optional)