title: Spring MVC Form submission binding against dynamic nested properties
body: <p>I am out of ideas and turning to the community experts. I am using Hibernate Single table inheritance which is driving me in this direction. </p>
  
  <p>I have a BaseEntity class with many Subclasses using a Discriminator. I am using Spring MVC annotated controllers for the CRUD operations and JSPs using Spring form tags for the view.  </p>
  
  <p>I have a backingForm which includes the subclassed entities that the form uses. To save a ton of duplicate code I have a common.jsp that contains the fields in the BaseEntity and then other JSPs specfic to each subclasses.These other JSPs include the common.jsp. I am able to display the data fine by looknig at a pathVariable and then loading the proper subclass, adding  it to the form. Form submission and Spring's DataBinding has got me reeling.  Can any suggest a good way to allow for Spring to dymanically post to a specific nested property. Think about it like using polymorphism on a form submission. I know the may seem confusing, but idf anyone has ever tried this it should make perfect sense :-). This is not about dynamic list binding (AutoPopulating) this is very different. </p>
  
  <p>Thanks for any insight at all.</p>