BaseTen

BaseTen is a new, open source Cocoa database framework for working with PostgreSQL databases, designed with familiar, Core Data -like semantics and APIs. With this 1.0 Release Candidate 1 version, a final 1.0 release is very near and it is safe to start development with the current BaseTen API. The BaseTen feature highlights include:

• BaseTen Assistant imports Core Data / Xcode data models
• Discovers the database schema automatically at runtime, including 1-1, 1-many and many-many relationships
• Database changes are propagated to clients automatically, without polling
• In-memory database objects are uniqued, and objects fetched via relationships are faults by default
• Support for RDBMS features like database-driven data validation, multi-column primary keys and updateable views
• Autocommit and manual save/rollback modes, both with NSUndoManager integration
• A BaseTen-aware NSArrayController subclass automates locking and change propagation
• Fetches are specified with NSPredicates (the relevant portions of which are evaluated on the database)

What is new in this release:

• BaseTen
  • BaseTen can now be built in 64-bit mode.
  • BXDatabaseObjectModel is now a public class.
  • BXDatabaseObjectModel can now be exported as a managed object model.
  • BXAttributeDescription now has the -attributeIndex method.
  • Table inheritance information is now fetched from the database.
  • Deprecated various methods that no longer need an error pointer as argument.
  • Changing a relationship from one-to-many to one-to-one or vice-versa no longer requires BaseTen schema to be reinstalled; refreshing the cache tables will suffice.
  • Upgraded libpq to version 8.3.11.
  • BXLogger now emits a warning instead of an error from BXDeprecationWarning.
• BaseTenAppKit
  • The generic authentication panel now displays the target address.
  • The interface builder plug-in is now built for x86_64 in addition to ppc and i386.
• BaseTen Assistant
  • BaseTen Assistant now imports default date attribute values.
  • Inverse relationships will now be displayed on double-click.

Requirements:

PostgreSQL 8.2 or later