Search Listerner in a mix of annoation and .hbm.xml files

shailesh.mangal · **Posted:** Mon Feb 22, 2010 4:47 pm

Most of our entities use Annotations but for a couple, we had to move to .hbm.xml as we needed to use "dynamic-component" which AFAIK is not available in annotations. In such a case, Hibernate search captures the CRUD events for annotated entities but not for the other entities. I can add event listeners, but that for the entire sessionFactory. Would it cause hibernate search to fire CRUD events twice in case of annotated entities?

What is the recommended approach for hibernate search in case of hybrid domain object Model.

amin-mc · **Joined:** Wed Oct 03, 2007 2:31 pm **Posts:** 205

In my previous project we used hbm files and Hibernate Search annotations so it's ok and it will work. The other alternative is using the Programmatic API from Hibernate Search. This means you do not use annotations on your entities but build a SearchMapping which constructs the entities and fields you want indexing/searching. Here is a link http://relation.to/Bloggers/Emmanuel

Hope that helps.

shailesh.mangal · **Posted:** Tue Feb 23, 2010 4:54 am

Let me clarify the scenario a bit

Code:

@Entity @Indexed
@Table(name = "B")
public class B implements java.io.Serializable {
        ...
     @ManyToOne(cascade = { CascadeType.PERSIST ,CascadeType.MERGE,CascadeType.REFRESH }, fetch = FetchType.EAGER)
   @org.hibernate.annotations.Cascade(org.hibernate.annotations.CascadeType.SAVE_UPDATE)
   @JoinColumn(name = "a_id", nullable = true)
   @IndexedEmbedded
   private A a;
}

//Defined in a.hbm.xml
@indexed
public class A implements java.io.Serializable {
     ...
    //Cardinality(oneToMany) defined in a.hbm.xml with inverse="true"
    @ContainedIn
    private Set<B> bs = new HashSet<B>(0);
}

Any change in A, update the indexes of A, but no impact to indexes of B. Insert/Delete are not an issue as they only happen via Object B.
If I remove the @index on A, no hibernateSearch event gets fired. I also tried adding post-update listener to the session.
SearchMapping looks interesting, when is 3.2 GA is expected?

shailesh.mangal · **Posted:** Tue Feb 23, 2010 5:38 pm

I got it to work by changing fetch from join to select
Object A, Before:

Code:

<set name="bs"  lazy="false" fetch="join" inverse="true">
  <key column="b_id"/>
  <one-to-many class="B"/>
</set>

Object A, After:

Code:

<set name="bs"  lazy="false" fetch="select" inverse="true">
  <key column="b_id"/>
  <one-to-many class="B"/>
</set>