[hibernate-issues] [Hibernate-JIRA] Created: (HHH-2883) ManyToMany doesn't work with polymorfism
ManyToMany doesn't work with polymorfism
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Key: HHH-2883
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2883
Project: Hibernate3
Issue Type: Bug
Affects Versions: 3.2.4
Environment: Hibernate 3.2.4, Annotations 3.3.0, Entitymanager 3.3.0
Reporter: Dirk
We tried out the SingleTable inheritance with a ManyToMany
@Entity
@Table(name="SHB_PRINCIPAL")
@Inheritance(strategy=InheritanceType.SINGLE_TABLE)
@DiscriminatorColumn(name="TYPE",discriminatorType=DiscriminatorType.INTEGER)
@Cache(usage=CacheConcurrencyStrategy.TRANSACTIONAL)
public class Principal implements Serializable {
....
@Entity
@DiscriminatorValue(PrincipalType.USER_NR)
@Cache(usage=CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class ApplicationUser extends Principal {
private static final long serialVersionUID = 1L;
@ManyToMany(fetch=FetchType.LAZY, cascade={CascadeType.PERSIST, CascadeType.MERGE,
CascadeType.REFRESH},
targetEntity=Role.class)
@JoinTable(name="SHB_PRINCIPAL_TO_PRINCIPAL",
joinColumns=@JoinColumn(name="FROM_PRINCIPAL_ID"),
inverseJoinColumns=@JoinColumn(name="TO_PRINCIPAL_ID"))
private Set<Role> roles;
@ManyToMany(fetch=FetchType.LAZY, cascade={CascadeType.PERSIST, CascadeType.MERGE,
CascadeType.REFRESH},
targetEntity=ApplicationGroup.class)
@JoinTable(name="SHB_PRINCIPAL_TO_PRINCIPAL",
joinColumns=@JoinColumn(name="FROM_PRINCIPAL_ID"),
inverseJoinColumns=@JoinColumn(name="TO_PRINCIPAL_ID"))
private Set<ApplicationGroup> groups;
@Entity
@DiscriminatorValue(PrincipalType.GROUP_NR)
@Cache(usage=CacheConcurrencyStrategy.NONSTRICT_READ_WRITE)
public class ApplicationGroup extends Principal {
private static final long serialVersionUID = 1L;
@ManyToMany(fetch=FetchType.LAZY, cascade={CascadeType.PERSIST, CascadeType.MERGE,
CascadeType.REFRESH})
@JoinTable(name="SHB_PRINCIPAL_TO_PRINCIPAL",
joinColumns=@JoinColumn(name="TO_PRINCIPAL_ID"),
inverseJoinColumns=@JoinColumn(name="FROM_PRINCIPAL_ID"))
private Set<ApplicationUser> users;
public ApplicationGroup() {
super();
this.type = PrincipalType.GROUP;
}
public Set<ApplicationUser> getUsers() {
return users;
}
public void setUsers(Set<ApplicationUser> users) {
this.users = users;
}
}
But in the groups and the roles of the user, hibernate returns all principals, not only
the users or groups. In the query it's clear that the descriminator is NOT used.
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