io.druid.server.lookup.cache.polling

Class OnHeapPollingCache<K,V>

java.lang.Object

io.druid.server.lookup.cache.polling.OnHeapPollingCache<K,V>

All Implemented Interfaces:

PollingCache<K,V>

public class OnHeapPollingCache<K,V>
extends Object
implements PollingCache<K,V>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OnHeapPollingCache.OnHeapPollingCacheProvider<K,V>

Constructor Summary

Constructors

Constructor and Description
OnHeapPollingCache(Iterable<Map.Entry<K,V>> entries)

Method Summary

Modifier and Type	Method and Description
void	close() close and clean the resources used by the cache
V	get(K key)
List<K>	getKeys(V value)

Methods inherited from class java.lang.Object

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

Constructor Detail

OnHeapPollingCache

public OnHeapPollingCache(Iterable<Map.Entry<K,V>> entries)

Method Detail

get

public V get(K key)

Specified by:

get in interface PollingCache<K,V>

Parameters:

key - Given key to lookup its value from the cache.

Returns:

Returns the value associated to the key or null if no value exist.

getKeys

public List<K> getKeys(V value)

Specified by:

getKeys in interface PollingCache<K,V>

Parameters:

value - Given value to reverse lookup its keys.

Returns:

Returns a List of keys associated to the given value otherwise Collections.EmptyList

close

public void close()

Description copied from interface: PollingCache

close and clean the resources used by the cache

Specified by:

close in interface PollingCache<K,V>