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From "jerome moliere" <jerome.moli...@gmail.com>
Subject Re: Hook in the cayenne internals
Date Mon, 02 Apr 2007 13:21:13 GMT
thanks to michael and tore for their help, it's now obvious...

Jerome

2007/4/2, Michael Gentry <blacknext@gmail.com>:
>
> I hate to follow up my own message, but I forgot to mention that the two
> main reasons implemented the extended types are:
>
> 1) Better type safety.  Methods could be setLienPosition(LienPosition
> lienPosition) instead of setLienPosition(Integer lienPosition).  Only
> values
> that represented actual lien positions could be assigned, then.
>
> 2) English (or any other language -- it was localizable) text for each
> enumerated value.  Made it easier to present more meaningful values in
> pulldown lists and in reports instead of the typically more
> programmer-oriented values.
>
> /dev/mrg
>
>
> On 4/2/07, Michael Gentry <blacknext@gmail.com> wrote:
> >
> > I've used extended types to implement enumerations (essentially -- but
> > mine had a lot more oomph behind it), but these were all integer/string
> > values, not blobs.  My implementation of that is on the Cayenne Wiki,
> but I
> > wrote it for Java 1.4 and a co-worker had trouble with it working under
> > Java 1.5, but I haven't explored it yet.  I'm not sure if it would help
> > you, but it might be worth looking at (since the code shows how to
> > read/write the types -- do the translation).
> >
> > /dev/mrg
> >
> > PS. Wiki link: http://cwiki.apache.org/CAY/enumerations-example.html
> >
> >
> > On 4/2/07, jerome moliere <jerome.moliere@gmail.com> wrote:
> > >
> > > Hi all,
> > > I'd like to show on a simple test the Cayenne equivalent for the
> > > Hibernate
> > > UserType, that is to say
> > > a way to map some SQL types with some user provided code...
> > > Example given is : my customers use sybase image type to store XML
> > > gzipped
> > > huge files...
> > > I'd like to be able to be able to store/read the XML
> > > transparently...Image
> > > type is a detail of implementation
> > > org.apache.cayenne.access.types.ExtendedType
> > > seems to be the Cayenne solution but there are no big details on this
> > > subject...
> > >
> > > Is the Cayenne source code my only source ?
> > > Moreover if you have UML sequence diagrams and other conception
> > > documents on
> > > Cayenne, I'd very happy to read them..
> > >
> > >
> > > Cheers
> > > Jerome
> > > --
> > > Jerome Moliere - Mentor/J
> > > http://romjethoughts.blogspot.com/
> > > auteur Eyrolles
> > >
> >
> >
>



-- 
Jerome Moliere - Mentor/J
http://romjethoughts.blogspot.com/
auteur Eyrolles

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