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From "Gentry, Michael \(Contractor\)" <michael_gen...@fanniemae.com>
Subject RE: My Laziness is Getting the Better of Me
Date Fri, 30 Jun 2006 19:54:55 GMT
Yes, which is what I thought you wanted.  So, you have something like:

Slideshow <->> SlideshowToImages <<-> Image

Correct?  If so, you can essentially do the same thing:

dataContext.deleteObjects(slideshow.getSlideshowToImages());

Just make sure you don't cascade delete your images from the
many-to-many join.

/dev/mrg


-----Original Message-----
From: Gary Jarrel [mailto:garyjarrel@gmail.com] 
Sent: Thursday, June 29, 2006 11:37 PM
To: cayenne-user@incubator.apache.org
Subject: Re: My Laziness is Getting the Better of Me


But wouldn't the call to
dataContext.deleteObjects(slideshow.getImages()); actually delete the
image records from the image table (upon commit). All I'm trying to do
is clear the relationship table, because any given image form part of
any number of slideshows. Hence I don't want to delete the actual
images just the link (record in join table) between Slideshow & Image

- garyj

PS. Australia is just too far away from the world, hence Friday here :)

On 6/30/06, Michael Gentry <blacknext@gmail.com> wrote:
> http://www.objectstyle.org/confluence/display/CAYDOC/Deleting+Objects
>
>
> So, I think:
>
> dataContext.deleteObjects(slideshow.getImages());
>
> might do the trick for you.
>
> /dev/mrg
>
> PS. It isn't Friday here yet ...
> PPS. Don't forget to do a dataContext.commitChanges(), too.
>
>
> On 6/29/06, Gary Jarrel <garyjarrel@gmail.com> wrote:
> > Hey All
> >
> > It's Friday, and I guess my thinking process has already switched
into
> > weekend mode, but whats the best way to clear all records in a
> > relationship. I.e. the following objects
> >
> > Slideshow -> (to may) -> Image      (join table in betwen)
> >
> > Slideshow.getImages() returns a list of images, how can I easily
clear
> > this list, cause the good old iterate over the list and remove using
> > slideshow.removeFromImages(Image)  doesn't seem to work as the list
> > decreases hence sending the cursor off.
> >
> > Sorry if the question is too obvious. :)
> >
> > - garyj
> >
>

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