Hi guys,

1st I want to thank all those particibated in the development of Hibernate. thanx for the good work

I created a hibernate mapping for an entity (group) that has a one-to-many relation to another (student) in a set (with cascade=all) and generated my java beans by hbm2java.
the problem is when i insert more than one new student the are getting replace by each other because they all have a null id i found the solution to add this two lines to the equals method

if( id == null )
return this == other;

now the problem is i need to add this each time i regenerate the beans java file ... and my entity relation model is not so small, so please help

equals and hashCode have been discussed here mutliple times allready, search the forum. If your change solves this for you, it should not be very difficult to adjust hbm2java to generate equals like that.