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POJersey-Guice doesn't process bound resources if injector is a child?
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  1. POJersey-Guice doesn't process bound resources if injector is a child?
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    copied!<p>I'm using Jersey-Guice to configure a Jersey app, following this <a href="http://randomizedsort.blogspot.com/2011/05/using-guice-ified-jersey-in-embedded.html" rel="nofollow">template</a>. Everything works fine if the <code>Injector</code> returned by the <code>GuiceServletContextListener.getInjector()</code> method is created by <code>Guice.createInjector()</code>. If that injector is instead the child of another injector, then the bound resources (e.g., <code>MyResource</code> in the code below) are never added to the Jersey <code>ResourceConfig</code> and Jersey crashes with a complaint about missing root resources. I don't think the bound resources are even scanned, because the usual "INFO: Registering my.example.MyResource as a root resource class" doesn't appear in the log.</p> <p>Any ideas why this might be happening? Both versions are show below.</p> <p>As an additional question: I'm trying to use the child injector because I want to configure my application data service object in my Main() class. More than just the Jersey resources need access to it. I still need it injected into the Jersey resources. </p> <p>If there's a better way to share the application singleton between the application Injector and servlet injector (better than my current approach of the servlet injector being a child of the application injector), please let me know.</p> <p>This version works.</p> <pre><code>public class MyConfig extends GuiceServletContextListener { @Override protected Injector getInjector() { return Guice.createInjector(new ServletModule() { @Override protected void configureServlets() { bind(MyResource.class); serve("*").with(GuiceContainer.class); } }); } } </code></pre> <p>The following code does not work though.</p> <pre><code> public class MyConfig extends GuiceServletContextListener { final Injector parentInjector; public MyConfig(Injector injector) { this.parentInjector = injector; } @Override protected Injector getInjector() { return parentInjector.getChildInjector(new ServletModule() { @Override protected void configureServlets() { bind(MyResource.class); serve("*").with(GuiceContainer.class); } }); } } </code></pre>
 

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