title: @OnDelete with @OneToMany only
body: <p>I have problem with annotation <code>@OnDelete</code> with <code>@OneToMany</code> relation.</p>
  
  <pre><code>public class Patent {
  
      @OneToMany
      @JoinCollumn(name = "parent_id")
      @OnDelete(action = OnDeleteAction.CASCADE)
      private List&lt;Child&gt; children;
  
  }
  
  public class Child {
  }
  </code></pre>
  
  <p>When I run it I get this error: "only inverse one-to-many associations may use <code>on-delete="cascade"</code>". How I need to change code to get it functional, without bidirectional relation? I know that, it can be solved with adding <code>@ManyToOne</code> relation, with appropriate annotations, to Child class, but I do not want to use this solution.</p>
  
  <p><strong>Edit</strong>: Purpose for this is that i need to generate "on delete cascade" to foreign key constraint in exported ddl schema.</p>