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From Michael Gentry <>
Subject Re: [jira] [Commented] (CAY-2038) Hessian serialization error when using JSR-310 Date types with ROP
Date Tue, 08 Dec 2015 12:46:09 GMT
I was thinking cgen could probably be used to generate JS classes for the
entities.  A potential JSON issue is it is a flattened data stream, like
XML, which means you don't get "free" relationships, so you'd need to
correctly map that when you do a conversion (especially for
reference/shared tables, like a Country or State table).

On Tue, Dec 8, 2015 at 7:34 AM, Aristedes Maniatis <> wrote:

> On 8/12/2015 10:36pm, Michael Gentry wrote:
> > At the risk of muddying the thread, I think the biggest weakness/hole for
> > Cayenne as an ROP server is dealing with the evolving JavaScript UI
> > frameworks (AngularJS, KnockoutJS, etc).
> The real advantage of Cayenne's ROP implementation is that the client code
> looks a lot like code you'd write directly on the server. You manipulate
> the same ObjectContexts. You get to roll back, validate records, use parent
> contexts and all the same stuff you expect from Cayenne.
> Mostly you can be unaware of the magic that happens to get your queries
> and commits from the client to the server and back again.
> Once you leave ROP, then you start to plan around RESTful url routing
> paths, serialisation of objects into non-Java formats (often json into
> Javascript) and a completely different environment between the server and
> the client. Sometimes that's exactly what you need and the abstraction is
> useful... you might have different development teams working on each end.
> But ROP is also nice. You can (often) share code between client and server
> and (mostly) ignore what happens in between. In our testing environment we
> even glue together the client and server, bypassing the http connection, so
> the we can run unit tests on the client code without starting up a separate
> server.
> Ari
> --
> -------------------------->
> Aristedes Maniatis
> GPG fingerprint CBFB 84B4 738D 4E87 5E5C  5EFA EF6A 7D2E 3E49 102A

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