java - hibernate initiate correctly OneToOne object -

i have next situation. have pojo class:

    @entity     @table(name="project")     public class project {          public donation donation;          public project() {}         public project(int param1, int param2 ...) {             ...//other field initialisied             donation = new donation(param1, param2);         }          //methods          @onetoone         @joincolumn(name = "donation_project_id")         public donation getdonation() {             return donation;         }     }          public void setdonation(donation donation) {             this.donation = donation;         }     } 

donation class:

@entity @table(name="donation") public class donation {          public donation() {}          public donationlogic(int param1, int param2) {             //initialisation         }         //other methods } 

project table/class relays parameters table/class donation. 2 classes entities. , use spring+hibernate. question if correctly initiate class donation created in constructor of project class? think using new operator inside spring smells bad. maybe there way task? - create class/table filled table/class. maybe separate parameters 2 classes , not use 1 constructor initiate classes? use setters of donation class? if have many parameters, many setters need use((( hmm((

i think using new operator inside spring smells bad.

not really. but, anyway, shouldn't use new in @entity class , whole model layer. instead of should move new service layer, because looks business logic in entity class.

returning question: should better reconsider app architecture. said, new operator shouldn't used inside model layer , @entity classes. creating new bean, looks logic action. move action @service class , use @repository dao access basic operations on persistence objects. dao support , handle @onetoone annotation without writing new in entity beans.

helpful link: effective pattern data access jpa