@OneToMany with composite key

[Java Developer]

I have a One to One relation between Employee and Role table with EmployeeRoleMap as the join table. I have tried using the Join table and it does not work since the join table has an active flag(multiple records with only one as 'Y') which I am unable to factor in. Can this be factored in ?

Since this was not possible I tried mapping in the join table but the empRoleMapList list was coming up as empty without any exceptions. Can someone let me know where I am going wrong.

My table structure has
EMP - 
EMP_ID(PK)
EMP_ID_KEY(PK)
....

EMP_ROLE_MAP - 
EMP_ID(PK)
EMP_ID_KEY(PK)
ROLE_ID(PK)
ROLE_ID_KEY(PK)
ACTIVE_FLG

ROLE - 
ROLE_ID
ROLE_ID_KEY
....

The hibernate objects

@Entity
@Table(schema = "PROJECT", name = "EMPLOYEE")
public class Employee {

@Id
private EmployeePK id;

// Doesn't work since the join table has a active flag
//@OneToOne
//@JoinTable(
//schema = "PROJECT", 
//name = "EMP_ROLE_MAP", 
//joinColumns = {@JoinColumn(name = "EMP_ID"),@JoinColumn(name = "EMP_ID_KEY")},
//inverseJoinColumns = {@JoinColumn(name = "ROLE_ID"),@JoinColumn(name = "ROLE_ID_KEY")}
//)
//private Role role;
	
@OneToMany
@JoinColumns({
@JoinColumn(referencedColumnName="EMP_ID", name="id.empId"),
@JoinColumn(referencedColumnName="EMP_ID_KEY", name="id.empIdKey")
    })
private List<EmployeeRoleMap> empRoleMapList;

}

@Entity
@Table(schema="BBP_ALLOC",name="EMP_ROLE_MAP")
@AssociationOverrides({
@AssociationOverride(name = "id.empId", joinColumns = @JoinColumn(name = "EMP_ID")),
@AssociationOverride(name = "id.empIdKey", joinColumns = @JoinColumn(name = "EMP_ID_KEY"))
        })
public class BBPUserRoleMap {
	
@Id
private BBPUserRoleMapPK id;

@ManyToOne
@JoinColumns({
@JoinColumn(name="EMP_ID", referencedColumnName="EMP_ID", insertable=false, updatable=false),
@JoinColumn(name="EMP_ID_KEY", referencedColumnName="EMP_ID_KEY", insertable=false, updatable=false)
})
private BBPUser bbpUser;

	
@ManyToOne
@JoinColumns({
@JoinColumn(name="ROLE_ID"),
@JoinColumn(name="ROLE_ID_KEY")
})
private Role role;