On Tue, Apr 4, 2017 at 3:44 PM, Katia Aresti <kare...@redhat.com> wrote:
> Hi all, > > As you probably know, Will and I are working on the vert-x infinispan > integration [1], where the primary goal is to make infinispan the default > cluster management of vert-x. (yeah!) > Vert-x needs support for an Async Multimap. Today's implementation is a > wrapper on a normal Cache where only Cache Key's are used to implement the > multi map [2]. > This is not very efficient, so after trying some other alternative > implementations [3] that don't fully work (injection not working), Will and > I have come to the conclusion that it might be a good idea to start having > our own native CacheMultimap. This first multimap won't support duplicate > values on key's. > Sounds a great idea! This structure could be useful internally as well, for example in the Lucene directory, where we emulate a multimap using a DeltaAware Set in the value + IGNORE_RETURN_VALUE flag for better performance. > > As a quick start, the smallest multimap we need should implement the > following interface : > > public interface CacheMultimap<K, V> { > V put(K key, V value); > > What would it return here? Gustavo > Collection<V> get(K key); > > boolean remove(K key, V value); > } > > CacheMultimapImpl will be a wrapper on a normal Cache, similar to [3]. > > We could add a new method in EmbeddedCacheManager.java > > <K, V> CacheMultimap<K, V> getCacheMultimap(String cacheName, boolean > createIfAbsent); > > Implementation will create a cache as always and return a new > CacheMultimapImpl(cache). > > What do you think ? Please fell free to suggest any other alternative or > idea. > > Cheers > > Katia > > [1] https://github.com/vert-x3/vertx-infinispan > > [2] https://github.com/vert-x3/vertx-infinispan/blob/master/ > src/main/java/io/vertx/ext/cluster/infinispan/impl/ > InfinispanAsyncMultiMap.java > > [3] https://gist.github.com/karesti/194bb998856d4a2828d83754130ed79c > > > _______________________________________________ > infinispan-dev mailing list > infinispan-dev@lists.jboss.org > https://lists.jboss.org/mailman/listinfo/infinispan-dev >
_______________________________________________ infinispan-dev mailing list infinispan-dev@lists.jboss.org https://lists.jboss.org/mailman/listinfo/infinispan-dev