Question

Two questions about <list-index...> :

1. Is it necessary that values of column given in <list-index ...> element of <list> tag in mappings lists must be unique???

      <list-index column="index_col"/>
   

2. Does hibernate generate values for column in <list-index> or we provide them through code?

Answer 1

1. Yes. I don’t see why one would use several columns to store a single integer value. The index column stores the index of the element in the list.
2. Hibernate populates this column automatically, from the index of the element in the list.