Apache Excalibur project produces a set of libraries for component based programming in the Java language. Its main products include the Inversion of Control

Inversion of Control

In software engineering, Inversion of Control is an abstract principle describing an aspect of some software architecture designs in which the flow of control of a system is inverted in comparison to procedural programming....

framework Avalon, an Avalon based container named Fortress, and a set of Avalon compatible software components.

Excalibur spun out of the original Apache Avalon project following Avalon's closure in 2004. Since that time Apache Excalibur has hosted the Avalon framework and related source code.

Excalibur project has been retired by Apache Software foundation and it has been moved to Apache Attic

External links

• Apache Excalibur website
• History of Apache Avalon and Excalibur