问题描述
我正在通过泽西岛使用HK2，希望可以使用@Immediate服务.在此过程中，我注意到(看起来)我的服务的任何注释都未注册.例如，在旋转我的ServiceLocator并查看我的描述符中带有@Singleton注释的服务后，它仍设置为@PerLookup.我用于启动应用程序处理程序的代码如下:
I'm using HK2 through Jersey, and am looking to get @Immediate services working. In the process, I notice that (as it seems) none of the annotations for my services are getting registered. E.g., after spinning up my ServiceLocator and looking at my descriptor for a service annotated with @Singleton, it is still set as @PerLookup. My code for initiating my application handler is below:
ApplicationHandler handler = new ApplicationHandler(resourceConfig, new AbstractBinder() { ... });
我的活页夹像这样注册服务:
My binder registers a service like so:
bindAsContract(ShouldHaveSingletonScope.class);
此后立即查看我的ServiceLocator，我发现该作用域没有从类中拉出(仍然是@PerLookup).我还需要指定其他内容来告诉HK2解析类注释吗?这似乎是一个非常标准的用例，所以我必须缺少一些东西.
Looking at my ServiceLocator immediately after this, I see that the scope is not being pulled from the class (still @PerLookup). Is there something additional I need to specify to tell HK2 to parse class annotations? This seems like a pretty standard use case so I must be missing something.
推荐答案
ServiceLocatorUtilities上有一种称为 addClasses
There is a method on ServiceLocatorUtilities called addClasses
因此请访问ServiceLocator并执行
So get access to the ServiceLocator and just do
ServiceLocatorUtilities.addClasses(locator, ShouldHaveSingletonScope.class);
活页夹非常直白，只会照你说的做，而不是直接看课.
The binders are very literal, and will only do what you tell it as opposed to looking at the classes directly.
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