Package io.keikai.doc.collab.lib0

Class Cache<K,V>

java.lang.Object

io.keikai.doc.collab.lib0.Cache<K,V>

public class Cache<K,V>
extends Object

An implementation of a map which has keys that expire.

Constructor Summary

Constructors

Constructor	Description
Cache(long timeout)

Method Summary

Modifier and Type	Method	Description
static <K, V> Cache<K,V>	create(long timeout)
static Object	get(Cache cache, Object key)
static Object	getAsync(Cache cache, Object key)	Works well in conjunktion with setIfUndefined which has an async init function.
Map<K,io.keikai.doc.collab.lib0.Cache.Entry<K,V>>	getMap()
NodeList<io.keikai.doc.collab.lib0.Cache.Entry<K,V>>	getQueue()
long	getTimeout()
static void	refreshTimeout(Cache cache, Object key)
static Object	remove(Cache cache, Object key)
static void	set(Cache cache, Object key, Object value)
static CompletableFuture<?>	setIfUndefined(Cache cache, Object key, Supplier<CompletableFuture<?>> init)
static CompletableFuture<?>	setIfUndefined(Cache cache, Object key, Supplier<CompletableFuture<?>> init, boolean removeNull)

Methods inherited from class java.lang.Object

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

Constructor Details

Cache

public Cache(long timeout)

Method Details

getTimeout

public long getTimeout()

getQueue

public NodeList<io.keikai.doc.collab.lib0.Cache.Entry<K,V>> getQueue()

getMap

public Map<K,io.keikai.doc.collab.lib0.Cache.Entry<K,V>> getMap()

set

public static void set(Cache cache,
 Object key,
 Object value)

get

public static Object get(Cache cache,
 Object key)

refreshTimeout

public static void refreshTimeout(Cache cache,
 Object key)

getAsync

public static Object getAsync(Cache cache,
 Object key)

Works well in conjunktion with setIfUndefined which has an async init function. Using getAsync and setIfUndefined ensures that the init function is only called once.

Parameters:

cache -

key -

Returns:

V | Future | undefined

remove

public static Object remove(Cache cache,
 Object key)

setIfUndefined

public static CompletableFuture<?> setIfUndefined(Cache cache,
 Object key,
 Supplier<CompletableFuture<?>> init)

setIfUndefined

public static CompletableFuture<?> setIfUndefined(Cache cache,
 Object key,
 Supplier<CompletableFuture<?>> init,
 boolean removeNull)

create

public static <K,
V> Cache<K,V> create(long timeout)