BaseTen revealed

BaseTen is nearing release, so I guess it’s time to spill the beans. The first Developer Preview is slated for next Friday, December 1st. Here’s the description from the BaseTen page:

BaseTen is a new, open source Cocoa database framework that allows you to work with PostgreSQL databases using familiar, Core Data -like semantics and APIs. Some of the feature highlights:

• Automatic runtime schema discovery, including detection of one-to-one, one-to-many and many-to-many relationships. The system supports arbitrary, multicolumn primary keys.
• In-memory database objects are uniqued, and objects fetched via relationships are faults by default
• In-memory objects and fetched collections are automatically updated when database changes
• Features a Setup Assistant for importing Xcode Data Models and enabling BaseTen notifications for tables
• Fetches are specified with NSPredicates (relevant portions of which are translated to WHERE clauses)
• Column data is automatically converted to and from the appropriate, native Foundation types
• Property lock status is automatically propagated via the database server
• Input validation is done by the database (including type checks and check constraints), client-side validation can be added for performance optimization
• Entities can be mapped to views as well as to physical tables (including insert, update, delete support)
• Optional autocommit mode
• Full automatic undo support, integrated with NSUndoManager
• Requires Foundation (10.4-era and later) and PostgreSQL 8.1.x and later; no other dependencies
• Optional AppKit support: BaseTen-aware subclasses of NSObjectController and NSArrayController (with an IB palette)
• Licensed under the GNU General Public License; commercial licenses are also available

Watch this space on December 1st!