I don't know whether Jackson's JAX-RS support allows you to plug in a custom ObjectMapper. It would be something we'd have to add if so.
A solution would probably implement a JAX-RS ContextResolver. On 2/21/12 1:58 AM, Richard Kennard wrote: > Hi guys, > > I'm confused as to the recommended approach to deserializing non-standard > JSON types. In my case there's a Long embedded in the JSON tree but I want to > deserialize it to a JPA entity (based on using the Long as an id into the > database) > > I have looked a variety of documentation, none seem very appealing. Here is > my thought process: > > 1. The current Exception I get is "JsonMappingException: Can not construct > instance of ..., problem: no suitable creator method found". I guess I could > add > a constructor to my JPA entity that takes a Long , but I'd rather not have > the entity itself accessing the EntityManager. I'd rather have an external > DTO. > > 2. I can put @JsonSerialize on my JPA entity, and point it to a serializer > class. But again I'd rather not tie my entity to its DTO. > > 3. I can use @Provider and a custom MessageBodyReader, but this appears to > want to read the entire HTTP message, not just part of the JSON tree? > > 4. I can register a custom Jackson serializer as explained here > http://wiki.fasterxml.com/JacksonHowToCustomSerializers. But to do that I'll > need a custom > ObjectMapper provider as explained here > http://jersey.576304.n2.nabble.com/Customizing-ObjectMapper-td6234597.html > And I'm very unsure what my 'new > SimpleModule' should look like? > > Can anyone help with a 'best practice' recommendation? > > Regards, > > Richard. > > ------------------------------------------------------------------------------ > Keep Your Developer Skills Current with LearnDevNow! > The most comprehensive online learning library for Microsoft developers > is just $99.99! Visual Studio, SharePoint, SQL - plus HTML5, CSS3, MVC3, > Metro Style Apps, more. Free future releases when you subscribe now! > http://p.sf.net/sfu/learndevnow-d2d > _______________________________________________ > Resteasy-users mailing list > Resteasy-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/resteasy-users -- Bill Burke JBoss, a division of Red Hat http://bill.burkecentral.com ------------------------------------------------------------------------------ Virtualization & Cloud Management Using Capacity Planning Cloud computing makes use of virtualization - but cloud computing also focuses on allowing computing to be delivered as a service. http://www.accelacomm.com/jaw/sfnl/114/51521223/ _______________________________________________ Resteasy-users mailing list Resteasy-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/resteasy-users
