title: mapping Field with variable type using Hibernate Annotaion
body: <p>how can I have a field with variable type in my class? I use hibernate annotation for mapping to DB. I tried to use java.io.Serializable as field's type, but it mapped to database as a 01 amount which is true if I get it's object and cast it to it's true type. but I need to run a query on this objects that needs true amount of field.(right now I can't compare an integer field with a number) 
  Does anyone have any idea how can I do this?</p>
  
  <p>Thanks in advance.</p>