INFO: Hibernate 2.1.2
PostgreSQL: 7.3.4

Hi,

I'm having trouble with a db column that is of type float8 that can contain null.
The problem is described in the faq *) and happens when running a Criteria.list() request.

The question is; how do I use a Hibernate custom type to do as described in the FAQ ? I've not found any .bhm.xml and/or .java examples
that illustrates this.

*)
From the Hibernate Users FAQ - Common Problems

Hibernate throws a PropertyAccessException or NullPointerException when I load or query an object!
If your object has a primitive-type property mapped to a nullable database column then you will need to use a Hibernate custom type to assign a sensible default (primitive) value for the case of a null column value. A better solution is usually to use a wrapper type for the Java property.


With regards,
Ken A. Rederg

Um, define the java type as Integer instead of int, and map the property as type="java.lang.Integer"...

I have a similar issue. We don't want to use "primitive Objects" like Double and Integer etc and at the same time we dont control the schema either.
Can we specify rules when mapping to handle such scenario. Like replace this by null by some default value.