做个广告吧，syncstore，基于hsqldb的本地存储引擎(0分)

Syncstore is a synchronizeable local storage engine which is based on HSQLDB for local java application. Since HSQLDB support only READ UNCOMMITTED isolate level, syncstore supply a ability of READ COMMITTED isolate level on MODEL object level, it also implements a simple ORMAP mechanism so that developers can work around ORMAP without depend on the popular ORMAP frameworks such as Hibernate which seems huge and complex to a local application. Syncstore automatically synchronize committed and rollbacked data to database and all the MODEL object instances, developersdo
n't need to maintain the status of MODEL object instances.
http://syncstore.sourceforge.net/