The MapKeyEnumerated annotation can be applied to an element collection or relationship of type System.Collections.Generic.Dictionary, in conjunction with the ElementCollection, OneToMany, or ManyToMany annotation.

If the enumerated type is not specified or the MapKeyEnumerated annotation is not used, the enumerated type is assumed to be ORDINAL.

Examples

CopyC#

Example:

public enum ProjectStatus {COMPLETE, DELAYED, CANCELLED, IN_PROGRESS}

public enum SalaryRate {JUNIOR, SENIOR, MANAGER, EXECUTIVE}

[Entity] public class Employee {
    [ManyToMany] 
    public Projects<ProjectStatus, Project> getProjects() {...}

    [OneToMany]
    [MapKeyEnumerated(STRING)]
    public Dictionary<SalaryRate, Employee> getEmployees() {...}
    ...
}