Component and association

thiebal · **Joined:** Fri Feb 10, 2006 2:20 pm **Posts:** 9

Hibernate version: 3.2-cr2
Annotations: 3.2.0-CR1

Here is my model: a User doesn't contain directly his roles but it has a component AccessInfo with these roles. But the Role refers to User...

Code:

@Entity
public class User {
  private AccessInfo accessInfo;
  [...]
}

@Embeddable
public class AccessInfo {
  @ManyToMany
  @JoinTable(name = "user_role", joinColumns = { @JoinColumn(name = "userId") }, inverseJoinColumns = { @JoinColumn(name = "roleId") })
  private Set<Role> roles;
  [...]
}

@Entity
public class Role {
  @ManyToMany(targetEntity = User.class, mappedBy = "accessInfo.roles")
  @JoinTable(name = "user_role", joinColumns = { @JoinColumn(name = "roleId") }, inverseJoinColumns = { @JoinColumn(name = "userId") })
  private Set<User> users;
  [...]
}

My parameter "mappedBy" in the @ManyToMany association in Role is wrong but I don't know how to define it.

I read in the documentation:

Quote:

You cannot use association annotations in an embeddable object (ie no @*ToOne nor @*ToMany). This is disallowed
by the spec, and not yet supported in Hibernate Annotations.

But does this apply to this pattern or to an association of components ?

Do I have an other choice than merge my User and my AccessInfo into a single bean ?

Thanks in advance

Cedric

emmanuel · **Posted:** Thu Aug 10, 2006 11:22 pm

Where did you read such a statement?
This should theorically be possible. What is wrong when you do that?