Eliminate (as much as possible) the use of raw SQL (or any textual + query language), instead providing Java classes that allow the + expressions of queries and updates in as concise but compile-time + checkable a manner as possible.
+ +Reduce the pain of schema and data migrations as much as possible, + but not so much that the system used to do the migrations is too + complex for anyone to understand or use properly.
+ +Use annotations to layer database metadata over the top of (almost) + POJOs.
+ +Use annotations that are syntactically and semantically equivalent + to EJB3 persistence annotations wherever possible.
+ +Support multiple database backends (currently MySQL and Postgresql).
+ +Provide caching support (currently integrated with EHCache).
+ +Keep an eye toward eventual support for sharded databases.
+I and others who have contributed to the library hope that you find it + useful, easy to use and time saving. Comments and contributions are + always welcome. + +
-- mdb@samskivert.com + + +