Re: Using Cayenne in GWT wthout DTOs

From: Robert Zeigler (
Date: Wed Sep 17 2008 - 12:22:21 EDT

  • Next message: Scott Anderson: "RE: Using Cayenne in GWT wthout DTOs"

    I haven't used Cayenne + GWT for a long time; I'm sure some things
    have changed.
    But why not define a custom template for class generation? So you
    generate your server-side entities, and then you use your custom
    template to generate your client-side entities that become your DTO's.
    A tiny bit of work for a whole lot of mileage, I think. :)



    On Sep 17, 2008, at 9/1710:33 AM , Chanda Fake wrote:

    > Hi Jano
    > Thanks for your response. So, what do you use for mapping between
    > your DTOs
    > and the model? I have had headaches with Dozer which I believe is
    > the best
    > out there. I wouldn't really mind putting my domain into the client.
    > Chanda
    > On Wed, Sep 17, 2008 at 5:18 PM, Krzysztof Janowicz <>
    > wrote:
    >> Hi,
    >> I am using Cayenne with GWT and IMO the splitting between the Cayenne
    >> DTO (DAO) and their 'duplicates' on the client side (GWT) works very
    >> good. Both are not simple duplicates but more like pieces with
    >> complement one another. just think of the security issues putting all
    >> application logic on client side. IMO the client side objects are
    >> more
    >> like beans. Moreover, GWT is still very restricted in terms of
    >> modeling
    >> more complex classes on client side.
    >> Jano
    >> Chanda Fake schrieb:
    >>> Hi
    >>> I have seen from the mailing list that some people have used
    >>> Cayenne with
    >>> GWT successfully.What is the best way to expose Cayenne model to GWT
    >> without
    >>> using DTOs which I consider as duplication of work. Am trying to
    >>> use my
    >>> Cayenne domain objects in GWT and running into some usual issues
    >>> GWT. Am
    >>> thinking if there is a way to create a module with the offending
    >>> class
    >>> "CayenneDataObject" and then including it using <inherits ..>.
    >>> What have
    >>> others done.
    >>> Thanks in advance

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