On Mar 5, 2008, at 6:01 PM, Kevin Menard wrote:
artist.addToPaintings(painting);
artist.setFavorite(painting);
I've seen duplicates appear such that artist.getPaintings() has two
entries
even though it's associated only with a single painting.
If that's the case, that would be a bug.
Painting painting = (Painting) ctxt.newObject("Painting");
painting.setPaintingTitle("a painting");
artist.addToPaintingArray(painting);
assertEquals(1, artist.getPaintingArray().size());
// Now add the exact same painting. Cayenne should detect
the duplicate and not actually add it.
artist.addToPaintingArray(painting);
The above is not a bug, but maybe we can document the behavior a
little better (and it would be insane to scan the list every time in
search of duplicates). Here is my thinking:
1. Cayenne only guarantees that *Cayenne* will return no duplicates
for to-many. If a user explicitly wants a list to contain duplicates,
that's his problem.
2. If the user wants the framework to ensure no duplicates, no matter
what, he should use a Set.
(and I agree - let's change the docs to make it more clear)
Andrus
