How to do a many-to-many relationship in spring Roo, with attributes within de relationship?

Question

i have been researching on this topic and havent found any answers yet. Im using spring roo and i would like to know if theres a way I can establish a many-to-many relations

Answer 1

Why can't you have a separate entity to denote your relationship?

Just introduce a new entity called a MedicalEquipmentReservation which would contain all the attributes of the reservation along with the relationships between the Employee and the Medical Equipment entities.

See the following example.

class MedicalEquipmentReservation{  
    //attributes  
    Date reservationStartDate;    
    Date reservationEndDate; 

    //relationships
    Employee employee; 
    Set equipments; //assuming more than one equipment can be borrowed at one reservation
}

Cheers and all the best with Spring Roo!