MAPB结合了嵌入式数据库引擎和Java集合。

MapDB is an open-source (Apache 2.0 licensed), embedded Java database engine and collection framework. It provides Maps, Sets, Lists, Queues, Bitmaps with range queries, expiration, compression, off-heap storage and streaming. MapDB is probably the fastest Java database, with performance comparable to java.util collections. It also provides advanced features such as ACID transactions, snapshots, incremental backups and much more.