How to set the values in session?

Question

If I'm getting empty session I need to setup some values to play the action class. So, here is the method

public SearchFilters getFilters() {
 return (SearchFilters) getSession().get("Filters");
}

I would like to check the session, if it's null, then I need to set the some values over here.

public SearchFilters getFilters() {
if(getSession().get("Filters").equals(null)){
---- //How to set the values and return ?
}
 return (SearchFilters) getSession().get("Filters");
}

Answer 1

Use the code:

public SearchFilters getFilters() {
if(getSession().get("Filters") == null){
  //How to set the values
  getSession().put("Filters", new Filters()); 
}
// and return.
 return (SearchFilters) getSession().get("Filters");
}

assumed you have injected the session into the action via implementing SessionAware.

The value is a free hand object which contains no value, but you could create a constructor to it and pass the value directly.