Re: Wonder Validity or Custom Validation
Re: Wonder Validity or Custom Validation
- Subject: Re: Wonder Validity or Custom Validation
- From: Chuck Hill <email@hidden>
- Date: Thu, 14 May 2009 09:08:25 -0700
On May 14, 2009, at 2:24 AM, Timo Hoepfner wrote:
Hi Gustavo,
nevertheless, if you can wait a few weeks, I'd wait for the new
validation framework that Chuck announces in his WOWODC session
description.
There is another validation framework, that wasn't mentioned yet: http://code.google.com/p/houdah-webobjects-frameworks/wiki/HoudahEOValidation
Thanks! I'd forgotten about that one.
Chuck
Am 14.05.2009 um 10:41 schrieb Gustavo Pizano:
I wish I can... :( . Im in Slovakia... and can't go the WOWODC. I
missing all the good stuff....
Maybe I will be buying the videos after the WOWODC.. if there are
gonna be posted.
On Thu, May 14, 2009 at 10:22 AM, Timo Hoepfner <th-
email@hidden> wrote:
Maybe visiting WOWODC would make your life much easier:
--- snip ---
EOF Validation: The Next Generation
Speaker : Chuck Hill
Validation is one of the least satisfactory parts of WebObjects. It
shows signs of promise and of abandonment, like a prototype left
uncompleted. We will start with a survey of the state of validation
in WebObjects and the extensions found in Wonder's core
ERExtensions frameworks; the seldom used Validity framework; and in
the GVC EOFValidation framework. We will then dive in to take a
look at EOF validation "deep under the covers" focusing on the
mechanics of how it can be extended. We will then define the
functionality that will make the next generation of validation for
WebObjects and examine an implementation.
With a validation roadmap in place and a highly functional
validation base available, we will turn our attention to the
WOComponent presentation layer. Here, too, validation handling
leaves much to be desired and the functionality is not clear. We
will look at the often ignored validation handling in WOComponent
and how it quickly breaks down. We separate WOComponents into two
categories, Pages and PageComponents, and get them to co-operate in
handling validation. The result will be a page that can orchestrate
validation handling, including handling optimistic locking
exceptions equally whether they occur within one EOF stack or
across instances. This will allow us to create drop-in components
that can handle their own validation in a co-operative fashion with
the page. As with validation, a functional, documented foundation
will be supplied.
In this session you will learn:
how WebObjects validation is implemented
how WebObjects validation can be extended
how to make working with validation easier
how validation handling was intended to work with WOComponent
how to bring working validation handling to WOComponent
how to detect optimistic locking exceptions within one EOF stack
how to handle all optimistic locking exceptions
how to use inheritance and composition to make validation handling
and presentation painless
how to contribute to the future of EOF validation
The result of this session will be the release of two new
frameworks for WebObjects validation (one for the EOF layer and one
for the WOComponent presentation layer). These frameworks will be
written to be independent of other frameworks (including Project
Wonder) so everyone will be able to use and benefit from them.
These frameworks will be functional, but there will be areas where
additional functionality can be added (such as support for
additional databases). The intention is that these will get
completed by others in the community.
--- snip ---
From http://www.wocommunity.org/wowodc09/west/topics.html#validation
Timo
Am 14.05.2009 um 09:36 schrieb Gustavo Pizano:
HEllo, after reading, the Validation Chapter on the PWO, at the end
Chick mention validity as an alternative... now, Im planing and
designing the whole implementation and strategy to follow. prior
start coding.. I want to ask if using Validity will make my life
easier,.. or in the other hadnt I should use the "Practical
Solution" that they mention on the book... Pros. Cons... Im still
little confused with the subject, but I think I understand most of
the "stack call" that happens in the insights of the EOF when
validation occurs.
Thanks to PWO and the EOF PG
Gustavo
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--
Chuck Hill Senior Consultant / VP Development
Come to WOWODC'09 in San Fran this June!
http://www.wocommunity.org/wowodc09/
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