Jump to letter: [
ABCDEFGHIJKLMNOPQRSTUVWX
]
jakarta-commons-chain: Commons Chain
- Summary
- A popular technique for organizing the execution of complex
processing flows is the "Chain of Responsibility" pattern, as
described (among many other places) in the classic "Gang of Four"
design patterns book. Although the fundamental API contracts
required to implement this design patten are extremely simple,
it is useful to have a base API that facilitates using the pattern,
and (more importantly) encouraging composition of command
implementations from multiple diverse sources.
Towards that end, the Chain API models a computation as a series
of "commands" that can be combined into a "chain". The API for a
command consists of a single method (execute()), which is passed
a "context" parameter containing the dynamic state of the
computation, and whose return value is a boolean that determines
whether or not processing for the current chain has been completed
(true), or whether processing should be delegated to the next
command in the chain (false).
Changelog
- * Mon Aug 13 12:00:00 2007 Ralph Apel <r{*}apel{%}r-apel{*}de> 0:1.1-1jpp
-
- Upgrade to 1.1
- Add gcj_support option
- Add pom and depmap frag
- Make Vendor, Distribution based on macro
- * Wed Apr 12 12:00:00 2006 Ralph Apel <r{*}apel{%}r-apel{*}de> 0:1.0-2jpp
-
- First JPP-1.7 release
- Build with maven by default
- Add option to build with straight ant
- Add -manual subpackage
- * Tue Oct 18 12:00:00 2005 Ralph Apel <r{*}apel{%}r-apel{*}de> 0:1.0-1jpp
-
- First release