Package org.apache.pulsar.reactive.client.producercache

Class CaffeineShadedProducerCacheProvider

java.lang.Object

org.apache.pulsar.reactive.client.producercache.CaffeineShadedProducerCacheProvider

All Implemented Interfaces:

AutoCloseable, org.apache.pulsar.reactive.client.adapter.ProducerCacheProvider

public class CaffeineShadedProducerCacheProvider
extends Object
implements org.apache.pulsar.reactive.client.adapter.ProducerCacheProvider

Producer cache provider that uses a shaded Caffeine AsyncCache to cache entries.

Constructor Summary

Constructors

Constructor	Description
CaffeineShadedProducerCacheProvider()	Create a cache provider instance with default values.
CaffeineShadedProducerCacheProvider(Duration cacheExpireAfterAccess, Duration cacheExpireAfterWrite, Long cacheMaximumSize, Integer cacheInitialCapacity)	Create a cache provider instance with the specified options.

Method Summary

Modifier and Type	Method	Description
void	close()
<K, V> CompletableFuture<V>	getOrCreateCachedEntry(K key, Function<K,CompletableFuture<V>> createEntryFunction)

Methods inherited from class java.lang.Object

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

Constructor Details

CaffeineShadedProducerCacheProvider

public CaffeineShadedProducerCacheProvider()

Create a cache provider instance with default values.

CaffeineShadedProducerCacheProvider

public CaffeineShadedProducerCacheProvider(Duration cacheExpireAfterAccess,
 Duration cacheExpireAfterWrite,
 Long cacheMaximumSize,
 Integer cacheInitialCapacity)

Create a cache provider instance with the specified options.

Parameters:

cacheExpireAfterAccess - time period after last access to expire unused entries in the cache

cacheExpireAfterWrite - time period after last write to expire unused entries in the cache

cacheMaximumSize - maximum size of cache (entries)

cacheInitialCapacity - the initial size of cache

Method Details

close

public void close()

Specified by:

close in interface AutoCloseable

getOrCreateCachedEntry

public <K,
V> CompletableFuture<V> getOrCreateCachedEntry(K key,
 Function<K,CompletableFuture<V>> createEntryFunction)

Specified by:

getOrCreateCachedEntry in interface org.apache.pulsar.reactive.client.adapter.ProducerCacheProvider