# How to define large events?

1. Open the respective .kstream file

2. Split the large/complex data into domain specific objects & define it as event-data

   event-data Address(line1:String, line2:String, city:String, state:String)
   event-data EducationDetails(grade:String, passingYear:String)
   

3. Then define the event using with event-data as properties

   event-data Employee(name:String, dob:CalendarDate, 
                       currentAddress:Address, permanentAddress:Address,
                       education:EducationDetails*)