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 Post subject: Associationoverride, mapping includePaths
PostPosted: Fri Jun 15, 2012 11:48 am 
Pro
Pro

Joined: Wed Nov 05, 2003 7:22 pm
Posts: 208
Hi,

How are you supposed to map an includePaths relation to an object that has a combined primary key?

Code:
@Entity
@AssociationOverrides({
   @AssociationOverride(name = "pk.user",
      joinColumns = @JoinColumn(name = "FK_userId")),
   @AssociationOverride(name = "pk.group",
      joinColumns = @JoinColumn(name = "FK_groupId"))
})
@Cache(usage=CacheConcurrencyStrategy.READ_WRITE,region=CacheRegion.GROUP)
public class GroupMember{

   @EmbeddedId
   public GroupMemberId getPk() {
      return pk;
   }
}   

@Embeddable
public class GroupMemberId implements Serializable{
   
   public GroupMemberId(){}
   
   public GroupMemberId(Usor user, Group wallGroup){
      this.user=user;
      this.group = wallGroup;
   }

   @ManyToOne(optional=false)
   @ContainedIn
   public User getUser() {
      return user;
   }

   public void setUser(User user) {
      this.user = user;
   }

   @ManyToOne(optional=false)
   public Group getGroup() {
      return group;
   }
}

@Entity
@Indexed
public class User{

   @OneToMany(cascade=CascadeType.ALL,orphanRemoval=false,fetch=FetchType.LAZY, mappedBy="pk.user")
   @IndexedEmbedded(prefix="member.",includePaths={"pk.group.id","blocked","active"})
   public List<GroupMember> getGroupMemberships() {
      return groupMemberships;
   }
}


I would expect that Hibernate Search would accept "pk.group.id" as a path on getGroupMemberships. But it doesn't.
I also tried adding @EmbeddedId to getPk().

My workaround so far was adding a @Transient @IndexedEmbedded getGroup() member to GroupMember, but apart from it being somewhat ugly, I also run into Lazy Exception errors in some situations on IndexedEmbedded relations within the Group.

Is there a definitive answer on how to map Embedded Primary keys when used with Hibernate Search?


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 Post subject: Re: Associationoverride, mapping includePaths
PostPosted: Fri Jun 15, 2012 12:49 pm 
Pro
Pro

Joined: Wed Nov 05, 2003 7:22 pm
Posts: 208
A related issue that I don't get with this is:

Code:
public void removeMember(GroupMember member){

   member = (GroupMember) get(GroupMember.class,member.getPk());
      
   Group group = member.getGroup();
   group.getMembers().remove(member);


results in a lazy init exception on group.getMembers


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