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POProper way to do Guice singleton service injection into Quartz tasks, Stripes ActionBeans and ServletContextListeners?
 

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  1. POProper way to do Guice singleton service injection into Quartz tasks, Stripes ActionBeans and ServletContextListeners?
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    <p>At the moment I'm using a static singleton to obtain the singleton service that Guice 3.0 builds for me through DI - I believe this a terrible hack and not at all the intended way to use Guice for DI, and complicates unit testing.</p> <pre><code>public class ServiceProvider { private static ServiceProvider instance = new ServiceProvider(); private MyService myService; public ServiceProvider() { Injector myInjector = Guice.createInjector(new MyModule()); myService = noobmeterInjector.getInstance(MyService.class); } public static MyService getMyService() { return instance.myService; } } </code></pre> <p>However, I'm not quite sure how to fix that, as I need that service in at least four different spots:</p> <ul> <li>Stripes ActionBeans - I think the <a href="http://bgoodin.github.io/stripes-guice/" rel="nofollow">Stripes Guice plugin</a> would help me there, and I did connect it but ended up with multiple parallel MyServices</li> <li>ServletContextListener - I think possibly the <a href="http://code.google.com/p/google-guice/wiki/ServletModule" rel="nofollow">Guice Servlet module</a> can help somehow, although I'm struggling with the documentation as it mostly discusses replacing web.xml with Guice configuration (not my priority at this point) and injecting HttpServletRequests into Guice-constructed objects (again not what I want to do)</li> <li>Quartz Jobs - here I found <a href="http://www.codesmell.org/blog/2009/01/quartz-fits/" rel="nofollow">something relevant</a>, but not sure if it won't end up still creating a "parallel" MyService to the other ones</li> <li>Batch processes run from command line - this is the easy part</li> </ul> <p>The MyService service is intended to be a singleton (other services it owns open DB/MQ connections, etc., so creating multiple of these would be bad).</p> <p>Is there some simple way how to do this in Guice that I'm missing?</p>
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