NAMES FOR DANCERS AND OTHER GRACEFUL SOULS ... Posted 19 Jan 96 by Me'ira a.k.a JOYFUL DANCER. kharding@lamar.colostate.edu. Permission granted to publish/distribute. On Doomsday you will be called by your names and the names of your fathers - so choose beautiful [graceful] names! -- The Prophet Muhammed.
The Java programming language supports multiple inheritance of type, which is the ability of a class to implement more than one interface. An object can have multiple types: the type of its own class and the types of all the interfaces that the class implements.
An important capability of the Java Persistence API is its support for inheritance and polymorphism, something that was not available in EJB 2.1. You can map a hierarchy of entities, where one entity subclasses another, to a relational database structure, and submit queries against the base class.he EJB 3.0 example illustrates inheritance from an entity. However inheritance from POJOs that are not entities -- for behavior and mapping attributes -- is also allowed. The base entity or nonentity can either be abstract or concrete.