Re: Tutorial
Re: Tutorial
- Subject: Re: Tutorial
- From: David LeBer <email@hidden>
- Date: Wed, 12 Mar 2008 17:34:11 -0400
On 12-Mar-08, at 5:27 PM, Gustavo Pizano wrote:
LOL
Actaully im having problems with that code line Im getting this
Application: nhlpm
Error: java.lang.IllegalArgumentException exception
Reason:
java.lang.IllegalArgumentException: Could not find
EOClassDescription for entity name 'DisplayBoard' !
and the traceTrak shows the error in that line.. so what to do?
You google the error. (Use your google foo young warrior!)
<http://lists.apple.com/archives/Webobjects-dev/2007/Dec/msg00688.html>
And if that doesn't help you post the snippet of code that is causing
the error and the full stack trace.
Gus
On Mar 12, 2008, at 4:21 PM, David LeBer wrote:
On 12-Mar-08, at 4:46 PM, Gustavo Pizano wrote:
Hello guys.
Well, finally after "solving" ( i dunno yet if its gonna worl the
solution or what) the problem with the "execute SQL" Im going
trough the tutorial, IO read I should use the Veogen due that im
under leopard. so I did what the wiki says
http://wiki.objectstyle.org/confluence/display/WOL/Velocity+EOGenerator+(Veogen)
no problem there.
so comparing the sample code I downloaded from the site where the
tutorial resides and with the code generated (DisplayBoard.java
and _DisplayBoard.java) there are some diferences, i.e the
constructor its missing, I don't have any issue in putting just
super();, but Im wondering if I will have some p[roblems in the
future...
Veogen templates do the right thing. Don't worry about the missing
constructor, do not added it, you will (and should) never call it
directly.
When creating a new DisplayBoard you'll see in the code for the
tutorial that Janine uses:
DisplayBoard displayBoard =
(DisplayBoard)EOUtilities.createAndInsertInstance(session
().defaultEditingContext(), "DisplayBoard");
This is such a common line of code that the Veogen templates
generate factories that do that for you.
So you can call:
DisplayBoard displayBoard =
DisplayBoard.newDisplayBoard(session().defaultEditingContext());
;david
--
David LeBer
Codeferous Software
'co-def-er-ous' adj. Literally 'code-bearing'
site: http://codeferous.com
blog: http://davidleber.net
profile: http://www.linkedin.com/in/davidleber
--
Toronto Area Cocoa / WebObjects developers group:
http://tacow.org
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| References: | |
| | >Tutorial (From: Gustavo Pizano <email@hidden>) |
| | >Re: Tutorial (From: David LeBer <email@hidden>) |
| | >Re: Tutorial (From: Gustavo Pizano <email@hidden>) |