Apple

public DisplayBoard localInstanceIn(EOEditingContext editingContext) {

DisplayBoard localInstance = (DisplayBoard)EOUtilities.localInstanceOfObject(editingContext, this);

if (localInstance == null) {

throw new IllegalStateException("You attempted to localInstance " + this + ", which has not yet committed.");

}

return localInstance;

}

and I guess if I put the new line you suggest I must implement the newDisplayBoard (EOEditingContext) and formt here call the localInstanceIn()method which resieds int he _DisplayBoard class, which it looks for me like a singleton pattern.??

Gus

On Mar 12, 2008, at 4:24 PM, David LeBer wrote:

On 12-Mar-08, at 5:21 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());

I guess I should have put in a reference to the canonical EOF Commandments:

<http://wiki.objectstyle.org/confluence/display/WO/EOF-Using+EOF-The+EOF+Commandments>

;david

--
David LeBer
Codeferous Software
'co-def-er-ous' adj. Literally 'code-bearing'
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--
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References:
	>Tutorial (From: Gustavo Pizano <email@hidden>)
	>Re: Tutorial (From: David LeBer <email@hidden>)
	>Re: Tutorial (From: David LeBer <email@hidden>)