Package org.apache.pulsar.reactive.client.internal.adapter

Class ConcurrentHashMapProducerCacheProvider

java.lang.Object

org.apache.pulsar.reactive.client.internal.adapter.ConcurrentHashMapProducerCacheProvider

All Implemented Interfaces:

AutoCloseable, ProducerCacheProvider

public class ConcurrentHashMapProducerCacheProvider
extends Object
implements ProducerCacheProvider

Producer cache provider that uses a ConcurrentHashMap to cache entries.

Constructor Summary

Constructors

Constructor	Description
ConcurrentHashMapProducerCacheProvider()	ConcurrentHashMapProducerCacheProvider's constructor.

Method Summary

Modifier and Type	Method	Description
void	close()
<K, V> CompletableFuture<V>	getOrCreateCachedEntry(K key, Function<K,CompletableFuture<V>> createEntryFunction)	Gets or create an entry in the cache.

Methods inherited from class java.lang.Object

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

Constructor Details

ConcurrentHashMapProducerCacheProvider

public ConcurrentHashMapProducerCacheProvider()

ConcurrentHashMapProducerCacheProvider's constructor.

Method Details

getOrCreateCachedEntry

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

Description copied from interface: ProducerCacheProvider

Gets or create an entry in the cache.

Specified by:

getOrCreateCachedEntry in interface ProducerCacheProvider

Type Parameters:

K - the type of the cache key

V - the type of the cache entry value

Parameters:

key - the cache key

createEntryFunction - a function called to create the entry in the cache if it's not present.

Returns:

the cache entry value

close

public void close()

Specified by:

close in interface AutoCloseable