="block">Specifies a column that is used to maintain the persistent order of
 a list. The persistence provider is responsible for maintaining the
 order upon retrieval and in the database.  The persistence provider
 is responsible for updating the ordering upon flushing to the
 database to reflect any insertion, deletion, or reordering
 affecting the list.

 <p> The <code>OrderColumn</code> annotation is specified on a
 OneToMany or ManyToMany relationship or on an element
 collection. The <code>OrderColumn