Java 9 Programming Blueprints

Finish the notes resource

Before we can move on from the Note resource, we need to finish up a few operations, namely, read, update, and delete. Reading a single note is very straightforward:

    @GET 
    @Path("{id}") 
    public Response getNote(@PathParam("id") String id) { 
      Document doc = collection.find(buildQueryById(id)).first(); 
      if (doc == null) { 
        return Response.status(Response.Status.NOT_FOUND).build(); 
      } else { 
        return Response.ok(new Note(doc)).build(); 
      } 
    } 

We've specified the use of the HTTP verb GET as we've already seen, but we have an additional annotation on this method, @Path. Using this annotation, we tell JAX-RS that this endpoint has additional path segments that the request needs to be matched against. In this case, we specify one ...