Package org.infinispan.multimap.impl

Class EmbeddedMultimapCache<K,V>

java.lang.Object

org.infinispan.multimap.impl.EmbeddedMultimapCache<K,V>

All Implemented Interfaces:

org.infinispan.multimap.api.BasicMultimapCache<K,V>, MultimapCache<K,V>

public class EmbeddedMultimapCache<K,V>
extends Object
implements MultimapCache<K,V>

Embedded implementation of MultimapCache

Transactions

EmbeddedMultimapCache supports implicit transactions without blocking. The following methods block when they are called in a explicit transaction context. This limitation could be improved in the following versions if technically possible :

• BasicMultimapCache.size()
• BasicMultimapCache.containsEntry(Object, Object)

More about transactions in : the Infinispan Documentation.

Duplicates

The current implementation does not support duplicate values on keys. Object.equals(Object) method is used to check if a value is already present in the key. This means that the following code.

    multimapCache.put("k", "v1").join();
    multimapCache.put("k", "v2").join();
    multimapCache.put("k", "v2").join();
    multimapCache.put("k", "v2").join();

    multimapCache.get("k").thenAccept(values -> System.out.println(values.size()));
    // prints the value 2. "k" -> ["v1", "v2"]
 

Since:

9.2

Author:

Katia Aresti, karesti@redhat.com

Constructor Summary

Constructors

Constructor	Description
EmbeddedMultimapCache(org.infinispan.Cache<K,Bucket<V>> cache)

Method Summary

Modifier and Type	Method	Description
CompletableFuture<Boolean>	containsEntry(K key, V value)
CompletableFuture<Boolean>	containsKey(K key)
CompletableFuture<Boolean>	containsValue(V value)
CompletableFuture<Collection<V>>	get(K key)
org.infinispan.Cache<K,Bucket<V>>	getCache()
CompletableFuture<Optional<org.infinispan.container.entries.CacheEntry<K,Collection<V>>>>	getEntry(K key)	Retrieves a CacheEntry corresponding to a specific key in this multimap cache.
CompletableFuture<Void>	put(K key, V value)
CompletableFuture<Void>	remove(Predicate<? super V> p)	Asynchronous method.
CompletableFuture<Boolean>	remove(K key)
CompletableFuture<Boolean>	remove(K key, V value)
CompletableFuture<Long>	size()
boolean	supportsDuplicates()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.infinispan.multimap.api.embedded.MultimapCache

remove

Constructor Detail

EmbeddedMultimapCache

public EmbeddedMultimapCache(org.infinispan.Cache<K,Bucket<V>> cache)

Method Detail

put

public CompletableFuture<Void> put(K key,
                                   V value)

Specified by:

put in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

get

public CompletableFuture<Collection<V>> get(K key)

Specified by:

get in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

getEntry

public CompletableFuture<Optional<org.infinispan.container.entries.CacheEntry<K,Collection<V>>>> getEntry(K key)

Description copied from interface: MultimapCache

Retrieves a CacheEntry corresponding to a specific key in this multimap cache.

Specified by:

getEntry in interface MultimapCache<K,V>

Parameters:

key - the key whose associated cache entry is to be returned

Returns:

the cache entry to which the specified key is mapped, or Optional.empty() if this multimap contains no mapping for the key

remove

public CompletableFuture<Boolean> remove(K key)

Specified by:

remove in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

remove

public CompletableFuture<Boolean> remove(K key,
                                         V value)

Specified by:

remove in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

remove

public CompletableFuture<Void> remove(Predicate<? super V> p)

Description copied from interface: MultimapCache

Asynchronous method. Removes every value that match the Predicate.

This method is blocking used in a explicit transaction context.

Specified by:

remove in interface MultimapCache<K,V>

Parameters:

p - the predicate to be tested on every value in this multimap cache

Returns:

CompletableFuture containing a Void

containsKey

public CompletableFuture<Boolean> containsKey(K key)

Specified by:

containsKey in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

containsValue

public CompletableFuture<Boolean> containsValue(V value)

Specified by:

containsValue in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

containsEntry

public CompletableFuture<Boolean> containsEntry(K key,
                                                V value)

Specified by:

containsEntry in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

size

public CompletableFuture<Long> size()

Specified by:

size in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

supportsDuplicates

public boolean supportsDuplicates()

Specified by:

supportsDuplicates in interface org.infinispan.multimap.api.BasicMultimapCache<K,V>

getCache

public org.infinispan.Cache<K,Bucket<V>> getCache()