From the course: Java EE 8: Web Services
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Dissecting your REST service - Java EE Tutorial
From the course: Java EE 8: Web Services
Dissecting your REST service
- [Instructor] Let's get a deeper understanding of some of the more important pieces of our RESTful web service implementation so far. We begin with the code. Our entire MyResource class defines a RESTful resource, or more specifically, a root resource. It's a root resource based on the presence of the @Path annotation on line 18. For each call to the URL configured in this @Path annotation, the Jersey runtime is going to create a new instance of this class. For the most part, you're not going to suffer any performance hit. Famous last words, I know. If you need to have only one instance of the root resource class for any reason, just add the @Singleton annotation. That's @Singleton annotation. That's from the javax.inject package. Add @Singleton to the class, and there will only be one instance of the MyResource class available throughout the entirety of the application. There could be a scenario where you want to…
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