Re: Using Cayenne in GWT wthout DTOs

From: Chanda Fake (chand..usakatimes.com)
Date: Wed Sep 17 2008 - 11:28:07 EDT

  • Next message: Chanda Fake: "Re: Using Cayenne in GWT wthout DTOs"

    Hi Michael,

    Thanks for your message and thank you for taking time out of your schedule
    to read my problem. I believe Tapestry does not impose any restrictions on
    what you can send to the view. GWT does. Am able to do pretty much
    everything outside GWT. When I put my Cayenne model I get this error on all
    cayenne classes

    [ERROR] Line 21: No source code is available for type
    org.apache.cayenne.CayenneDataObject; did you forget to inherit a required
    module?

    Chanda

    On Wed, Sep 17, 2008 at 5:01 PM, Michael Gentry <blacknex..mail.com> wrote:

    > I've not used GWT, but I used Cayenne+Tapestry without using DTOs. I
    > would bind my Tapestry components (text fields, labels, etc) directly
    > to my Cayenne objects and Tapestry would read/update them directly.
    > When I was finished, I'd dataContext.commitChanges() and go on to the
    > next page. I'm not sure if that helps you or not, but maybe it'll
    > help just a little.
    >
    >
    > On Wed, Sep 17, 2008 at 1:07 AM, Chanda Fake <chand..usakatimes.com>
    > wrote:
    > > 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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