From: Jamis Buck <jgb3@...>
Date: 2004-11-19T08:04:52+09:00
Subject: [ANN] Needle-Extras 1.0.0

Needle-Extras is a library of add-on services and utilities that can be 
used in your applications, in conjunction with Needle.

   Project page: http://rubyforge.org/projects/needle
   User Manual:  http://needle.rubyforge.org/extras
   API Docs:     http://needle.rubyforge.org/extras/api

Needle-Extras also demonstrates to other library authors how to make 
your libraries Needle-compatible.

This first release of Needle includes the following services/utilities:

* AttrInject: this is an implementation of interface injection for 
Needle, based on an implementation by Christian Neukirchen (thanks, 
chris2!) This allows you to specify the dependencies of a class via an 
"attr_inject" macro/method. Then, you use a special service model (e.g. 
"singleton_inject", or "prototype_inject"), which makes sure that those 
declared dependencies are satisfied when the service is instantiated. 
It's not as powerful as it could be (yet), but it makes a good 
technology demonstration.

* Multicast: this is a service that allows you to create "multicast" 
services--services that delegate their methods to a list of other services.

* RequireLibrary: this is actually a mini-framework for allowing 
libraries to register themselves with Needle, making it easier for 
clients to depend on third-party service libraries.

Enjoy!

- Jamis

-- 
Jamis Buck
jgb3@email.byu.edu
http://www.jamisbuck.org/jamis