Ehcache – standards-based cache that boosts performance

Ehcache is a fast and simple, thread safe, standards based pure Java, in-process cache, which acts as a pluggable cache for Hibernate 2.1.

It has a small memory footprint, minimal dependencies, and comprehensive documentation.

Ehcache is widely used in such open source projects as Hibernate and Spring. Terracotta also offers an enterprise edition.

Features include:

• Scalable:
  • Provides Memory and Disk stores for scalability into gigabytes.
• • Scalable to hundreds of caches.
• • Tuned for high concurrent load on large multi-cpu servers.
• • Multiple CacheManagers per virtual machine.
• Flexible:
  • Supports Object or Serializable caching.
• • Support cache-wide or Element-based expiry policies.
• • Provides LRU, LFU and FIFO cache eviction policies.
• • Provides Memory and Disk stores.
• • Distributed.
• • Dynamic, Runtime Configuration of Caches.
• Standards Based with a full implementation of JSR107 JCACHE API.
• Extensible:
  • Listeners may be plugged in.
• • Peer Discovery, Replicators and Listeners may be plugged in.
• • Cache Extensions may be plugged in.
• • Cache Loaders may be plugged in.
• • Cache Exception Handlers may be plugged in.
• Application Persistence:
  • Persistent disk store which stores data between VM restarts.
• • Flush to disk on demand.
• Listeners:
  • CacheManager listeners.
• • Cache event listeners.
• JMX Enabled.
• Distributed Caching.
• Support for replication via RMI or JGroups:
  • Peer Discovery.
• • Reliable Delivery.
• • Synchronous Or Asynchronous Replication.
• • Copy Or Invalidate Replication.
• • Transparent Replication.
• • Extensible.
• • Bootstrapping from Peers.
• Cache Server:
  • RESTful cache server.
• • SOAP cache server.
  • JCache style caching.
• • Comes as a WAR or as a complete server.
• Java EE and Applied Caching:
  • Blocking Cache to avoid duplicate processing for concurrent operations.
• • SelfPopulating Cache for pull through caching of expensive operations.
• • Java EE Gzipping Servlet Filter.
• • Cacheable Commands.
• • Works with Hibernate.
• • Works with Google App Engine.
• • Transactional support through JTA.
• High Quality:
  • High Test Coverage.
• • Automated Load, Limit and Performance System Tests.
• • Specific Concurrency Testing.
• • Production tested.
• • Fully documented.
• • Trusted by Popular Frameworks.
• • Conservative Commit policy.
• • Full public information on the history of every bug.
• • Responsiveness to serious bugs.

Website: www.ehcache.org
Support: Documentation
Developer: Terracotta, Inc
License: Apache License 2.0

Ehcache is written in Java. Learn Java with our recommended free books and free tutorials.

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