DORM is an ORM for Delphi

Features

• Open Source Apache License 2.0
• Database agnostic (Do not require database changes!)
• Has one, has many and belongs to relations support
• Mapping through file, attributes or CoC
• Save and retrieve objects graph, not only single objects
• External (file) or internal (resource, json stream) configuration
• Interfaces based!
• Supports for
  • FirebirdSQL (using UIB)
  • Interbase (using UIB)
  • SQLServer (using FireDAC driver)
  • SQLite3 (using this SQLite3 wrapper)
• Event based validation (OnBeforeInsert, ObAfterInsert, OnBeforeUpdate, OnAfterUpdate and so on)
• Persistence ignorance
• Object Versioning
• Object Tracking
• Can persists everythig!
• Used for years in big (hundred of tables with complex logic) 3tier systems and in many other smaller systems
• Very good performances
• Completely Unit tested
• Multiple environments
  • Development
  • Test
  • Production
• Lazy Load for related objects
• Rudimental support for null (currently only in the FIREBIRD persistence adapter)
• Fluent interfaces for queries
• Unit Of Work for multiple operations
• Use anon methods and generics

Tested on Delphi XE7, XE6, XE5, XE4, XE3 and XE2 (Win32)

Little introduction to dorm is available here as PDF