A high performance caching library for Java 8
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LoadingCache<key graph> graphs = Caffeine.newBuilder() .maximumSize(10_000) .expireAfterWrite(5, TimeUnit.MINUTES) .refreshAfterWrite(1, TimeUnit.MINUTES) .build(key -> createExpensiveGraph(key)); </key>
Caffeine provides flexible construction to create a cache with a combination of the following features: * automatic loading of entries into the cache, optionally asynchronously * size-based eviction when a maximum is exceeded based on frequency and recency * time-based expiration of entries, measured since last access or last write * asynchronously refresh when the first stale request for an entry occurs * keys automatically wrapped in weak references * values automatically wrapped in weak or soft references * notification of evicted (or otherwise removed) entries * writes propagated to an external resource * accumulation of cache access statistics
Use Caffeine in a community provided integration: * Play Framework: High velocity web framework * Micronaut: A modern, full-stack framework * Spring Cache: As of Spring 4.3 & Boot 1.4 * Akka: Build reactive applications easily * Quarkus: Supersonic Subatomic Java * Scaffeine: Scala wrapper for Caffeine * ScalaCache: Simple caching in Scala * Camel: Routing and mediation engine * JHipster: Generate, develop, deploy
Powering infrastructure near you: * Dropwizard: Ops-friendly, high-performance, RESTful APIs * Cassandra: Manage massive amounts of data, fast * Accumulo: A sorted, distributed key/value store * HBase: A distributed, scalable, big data store * Apache Solr: Blazingly fast enterprise search * Infinispan: Distributed in-memory data grid * Redisson: Ultra-fast in-memory data grid * OpenWhisk: Serverless cloud platform * Corfu: A cluster consistency platform * Grails: Groovy-based web framework * Finagle: Extensible RPC system * Neo4j: Graphs for Everyone * Druid: Real-time analytics
Download from Maven Central or depend via Gradle:
compile 'com.github.ben-manes.caffeine:caffeine:2.8.5' // Optional extensions compile 'com.github.ben-manes.caffeine:guava:2.8.5' compile 'com.github.ben-manes.caffeine:jcache:2.8.5'
See the release notes for details of the changes.
Snapshots of the development version are available inSonatype's snapshots repository.