F

FCO

See First class object.

First class object

An object in memory whose state is stored independently in the datastore. As a result, the first class object has an identity value, and it may be inserted, modified, fetched, and deleted independently of any other first class object. Application data objects are nearly always first class objects.

See also Second class object.

Flag

A Boolean property.

Friendly class

Any class that accesses the member field(s) of another class is friendly to that class.