io.druid.server.lookup.cache.polling

Interface PollingCache<K,V>

All Known Implementing Classes:

OffHeapPollingCache, OnHeapPollingCache

public interface PollingCache<K,V>

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)

Method Detail

get

V get(K key)

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

List<K> getKeys(V value)

Parameters:

value - Given value to reverse lookup its keys.

Returns:

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

close

void close()

close and clean the resources used by the cache