Guice

问题 I'm trying to print a "Hello, AOP!" message whenever Guice/AOP Alliance intercepts a method marked with a particular (custom) annotation. I have followed the official docs (a PDF that can be found here - AOP method interception stuff on pg. 11 ) and cannot get it to work, only compile. First, my annotation: @Retention(RetentionPolicy.RUNTIME) @Target({ElementType.METHOD}) @BindingAnnotation public @interface Validating { // Do nothing; used by Google Guice to intercept certain methods. } Then

问题 I want to use Guice + Jersey 2.0 on Grizzly. According to this How to use guice-servlet with Jersey 2.0? discussion there is no direct Guice integration for Jersey2 at present but it can be achieved using HK2 as a bridge. I also checked the sample project in Github https://github.com/piersy/jersey2-guice-example-with-test . This project is implemented using Jetty. But my problem is to implement it in Grizzly. On Jetty it is used like this @Inject public MyApplication(ServiceLocator

问题 I have this use case that is very similar to the robot-legs example of Guice, except I don't know how many "legs" I have. Therefore I can't use the annotations needed for the robot-legs example. I expect to gather all these "legs" in an java.util.Set with Guice's Multibindings extension. Technically, in a PrivateModule I would like to expose an implementation directly as an element of the set that will be provided by the Multibindings extension. I just don't know how to do that. For reference

问题 Thanks a lot for any guidance! The SecureSocial plugin works fine when I run it from the browser, but I would like to be able to test the rest of my Play app now. Quick Intro SecureSocial's syntax looks like this: def page = SecuredAction(WithProvider("google")) { ... } or this: def page = UserAwareAction { ... } I've been looking here, which seems to be the only question on Stack Overflow even remotely related to my problem with SecureSocial, but I don't quite fancy rewiring bytecode. There

问题 I am not sure if the issue is the technologies involved, or my understanding of the technologies. I have an html5 application written in javascript and html hosted on an apache 2.2 server. I have a java application written in java using jetty, guice, jackson, jersey that hosts a simple REST service. Both applications run on the same box, one on port 80 (pure html5 application hosted on apache), the other on 8080 (pure java application hosted on jetty/guice) I believe the answer is in the

问题 since Play Framework 2.4 there is the possibility to use dependency injection (with Guice). Before I used objects (for example AuthenticationService ) in my ActionBuilders: object AuthenticatedAction extends ActionBuilder[AuthenticatedRequest] { override def invokeBlock[A](request: Request[A], block: (AuthenticatedRequest[A]) => Future[Result]): Future[Result] = { ... AuthenticationService.authenticate (...) ... } } Now AuthenticationService is not an object anymore, but a class. How can I

问题 I gave to Google Guice the responsibility of wiring my objects. But, how can I test if the bindings are working well? For example, suppose we have a class A which has a dependence B . How can I test that B is injected correctly? class A { private B b; public A() {} @Inject public void setB(B b) { this.b = b } } Notice that A hasn't got a getB() method and I want to assert that A.b isn't null . 回答1: For any complex Guice project, you should add tests to make sure that the modules can be used

问题 I spent some time wondering if it is possible to write a guice module which itself is parametrized with type T and uses its type parameter to specify bindings. Like in this (not working) example: interface A<T> {} class AImpl<T> implements A<T>{} interface B<T> {} class BImpl<T> implements B<T> {} class MyModule<T> extends AbstractModule { @Override protected void configure() { bind(new TypeLiteral<A<T>>(){}).to(new TypeLiteral<AImpl<T>>(){}); bind(new TypeLiteral<B<T>>(){}).to(new

问题 I am extending Guice's AbstractModule and inside of the extending class I need access to Guice's injector. It that possible, if yes, how? 回答1: This is an unusual request. Modules are more like config files than logic files: The Module is read to create the Injector, and then as soon as the Injector is created the module has done its job. For a simple Module, the Injector literally doesn't exist until the Module is ready to be discarded. In any case, rather than requesting an Injector to get

问题 Checking out Guice and I love it. I currently have problem where guice solved it by injecting all the required dependencies I need. But I wonder if I am using Guice in the wrong way. What I require though is define bindings depending on specific instance. And to achieve this I passed the instance in the module. For instance, consider the following (somewhat similar to my problem): public class CustomerModule extends AbstractModule { private Customer customer; public CustomerModule(Customer