Thats what I ended up doing. I basically stored an object at the 0th id
of all my tables called "(Blank) not specified". That way, even if the
data does end up propagating to the UI, it doesnt look that bad.
Scott
Elia Morling wrote:
>If an object does not have a relationship set Cayenne returns an exception.
>Would the best practice be to store an id instead and build a custom
>getParentObject method using a query? All objects without relationships might
>e.g. have the relationship id set to 0.
>
>Example
>
>public Object getParent(){
> // Is parentId set to 0? Return null;
> // Else query parent row using parentId;
>}
>
>
>----- Original Message -----
>From: "Mike Kienenberger" <mkienen..laska.net>
>To: "Orion Fields" <ofield..martserv.com>
>Cc: <jsaa..eb.de>; <cayenne-user@objectstyle.org>
>Sent: Friday, August 06, 2004 11:00 PM
>Subject: Re: Testing for Valid Objects
>
>
>
>
>>=?iso-8859-1?Q? J=FCrgen=20Saar ?= <jsaa..eb.de> wrote:
>>
>>
>>>I use the actual version of cayenne
>>>in difference to 1.0 where silently an empty DataObject was returned
>>>reading the empty relation-object now a CayenneException is thrown.
>>>
>>>
>>Thanks for the reminder. I thought this problem sounded familiar.
>>
>>Take a look at this from Cayenne Release Notes 1.1 B2:
>>
>>
>>
>>>- DataObject.resolveFault() will now throw an exception if the underlying
>>>
>>>
>>DB row does not exist
>>
>>
>>> follow this link for further discussion:
>>> http://objectstyle.org/cayenne/lists/cayenne-user/2004/07/0124.html
>>>
>>>
>>According to this, 1.1B2 started throwing Exceptions in addition to marking
>>the object transient.
>>
>>Also covered in
>>http://objectstyle.org/jira/secure/ViewIssue.jspa?key=CAY-132, so you may
>>want to vote for this issue if it's important to you and you don't like the
>>workaround.
>>
>>Sounds like it's a bug that'll be fixed after 1.1 (so that null is returned
>>instead).
>>
>>-Mike
>>
>>
>>
>>
>
>
>
>
>
>
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