title: How should I validate dependent parameters in @requestparam in spring Rest API?
body: <p>I know there are validators in spring. However, these validators can only be bound to a single object. Say a Pojo in request body. However, I have a scenario where I have a get request and I want to validate a date range: I have a start date and the end date as <code>@requestparams</code>. How should I validate these?</p>
  
  <p>Also there is a validator applied for the same <code>@restcontroller</code>: for post request, say <code>Employeevalidtor</code>. Can I invoke multiple validators for different objects in the same <code>@restcontroller</code>?</p>