Called when de-serializing the string retrieved from the session variable back into the bean.
      Syntax
         
            T 
            convert
            (
            String 
            value
            )
         
      
      Parameters
         
            - 
               value – 
               String from the session variable
            
 
         
       
      Returns
bean of type T after the de-serialization
      Usage
         bean of type T after the de-serialization