Question

I am deploying a restful web services using Netbeans EE6 and jersey libraries with the tutorial http://netbeans.org/kb/docs/websvc/rest.html.

When I create a restful web services from entities that hold composite primary keys in the database, the project gives me an error when I try to test the web services:

SEVERE: Missing dependency for method public entities.RMSchedule service.RMScheduleFacadeREST.find(entities.RMSchedulePK) at parameter at index 0
SEVERE: Method, public entities.RMSchedule service.RMScheduleFacadeREST.find(entities.RMSchedulePK), annotated with GET of resource, class service.RMScheduleFacadeREST, is not recognized as valid resource method.

Is the error due to composite primary keys or is there a step that I should include?
Many thanks in advance.

Answer 1

I think this issue is related to Netbeans bug:

https://netbeans.org/bugzilla/show_bug.cgi?id=208375

When creating entity class which has composite primary keys,
two entity files are created. (ex CustomerEntity.jave, CustomerEntityPK.java)

Then if you choose to create the servlet from the entity class, the servlet comes with automatically generated code such as below:

    @DELETE
    @Path("{id}")
    public void remove(@PathParam("id") CustomerEntityPK id) {　//error
        super.remove(super.find(id));
    }

    @GET
    @Path("{id}")
    @Produces({"application/xml", "application/json"})
    public CustomerEntity find(@PathParam("id") CustomerEntityPK id) { //error
        return super.find(id);
    }

The issue is that argument being passed to the servlet methods is CustomerEntityPK which has composite primary key.

If you change the argument type to something like String then the error went away in my case.

    @DELETE
    @Path("{id}")
    public void remove(@PathParam("id") String id) {　//type set to String now
        super.remove(super.find(id));
    }

But in my project I did not need such auto generated code so I simply choose to create servlet class by hand and has no problem.

Hope that helps.