I have the following entities:
TEAM
@Entity
@Table
public class Team {
[..]
private Set<UserTeamRole> userTeamRoles;
/**
* @return the userTeamRoles
*/
@OneToMany(cascade = { CascadeType.ALL }, mappedBy = "team", fetch = FetchType.LAZY)
public Set<UserTeamRole> getUserTeamRoles() {
return userTeamRoles;
}
/**
* @param userTeamRoles
* the userTeamRoles to set
*/
public void setUserTeamRoles(Set<UserTeamRole> userTeamRoles) {
this.userTeamRoles = userTeamRoles;
}
}
and
USER_TEAM_ROLE
@Entity
@Table(name = "user_team_role")
public class UserTeamRole {
@ManyToOne(cascade = CascadeType.MERGE, fetch = FetchType.LAZY)
@JoinColumn(name = "FK_TeamId")
public Team getTeam() {
return team;
}
}
Now, when updating a Team entity that contains for example Team.userTeamRoles = {UTR1, UTR2} with {UTR1, UTR3}, I want UTR2 to be deleted. But the way I do it now, the old list remains the same and it only adds UTR3 to the list.
This is how I do it at the moment:
if (!usersDualListData.getTarget().isEmpty()) {
// the role for each user within the team will be "employee"
team.setUserTeamRoles(new HashSet<UserTeamRole>());
Role roleForUser = roleService
.getRoleByName(RoleNames.ROLE_EMPLOYEE.name());
for (User user : usersDualListData.getTarget()) {
UserTeamRole utr = new UserTeamRole();
utr.setUser(user);
utr.setTeam(team);
utr.setRole(roleForUser);
team.getUserTeamRoles().add(utr);
}
}
teamService.updateTeam(team);
I thought that by doing team.setUserTeamRoles(new HashSet<UserTeamRole>()); the list would be reset and because of the cascades the previous list would be deleted.
Any help is appreciated. Thank you
