This library implements a fast embeddable key/value store database for Java.
It's perfect when SQL would be overkill and/or you need finer grained control over the ACID properties of the data store to increase your performance.

Features

• Optional ACID transactions
• Multiversion Concurrency Control (MVCC)
• Object Caching and Object Marshaling Deferring
• BTree and Hash Indexes

Documentation

• Web Site