Audit implementation

[jc7442]

Hi,

I try to implement an audit based on my entity. The problem is that I should save the date of each modification but also mark the data that has been changed.

I try to use @preUdate and @prePersist annotations.

For the moment my solution (and I'm not very happy with it) is to use
@PostLoad to save in a transient map the list of attribute that I want to audit and to check in @PreUdate what has changed between my map and the entity. It is probably a bad solution concerning the FecthType.LAZY.

Is it possible to get a list of Field that have been updated ?. I suppose that hibernate need that kind of information to know what has to be persisted.
Any suggestions are welcome ...

[epbernard]

I'll provide that as an Hib extension, but I don't think It will be part of the spec

[goeh]

What is the current status on auditing?
Right now I need to implement an audit feature that triggers when a selection of properties changes.
Should I also go the transient map way, or is there a Hibernate extension I can use now?
What is best practice right now?
(I'm using the latest and greatest of jboss 4.0.4 and seam 1.0)