Hello all,
I've come accross a problem with the CayenneDataObjects. For some reason
Cayenne created two different instances of the same database object. This
made that the function equals and hashCode returned different values for the
same data object (conceptually). I checked the CayenneDataObject and the
hashCode function is not overriden anywhere, leading to this problem. As I
already have extended the CayenneDataObject I only had to override the
following functions:
@Override
public boolean equals(Object obj) {
if (obj instanceof HolosDataObject)
return getObjectId().equals(((HolosDataObject) obj).getObjectId());
return false;
}
@Override
public int hashCode() {
return getObjectId().hashCode();
}
Which fixed the problem. I am using cayenne 3.0.1. Shouldn't these
functions, or some sort of version of them, be present in
CayenneDataObject/PersistentDataObject?
Regards
Bruno Santos
--
Bruno René Santos | brunor...@holos.pt | Gestor de Projectos | Analista |
Programador | Investigador
Holos - Soluções Avançadas em Tecnologias de Informação S.A.
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