Unable to guess FieldBridge in Search 5.5. Unindexed Fields

Question

Versions:

Hibernate-Core: 5.2.5.Final
Hibernate-Search: 5.5.5.Final

Having the following mappings:

@Indexed
@Entity
@Table(name = "scanresult")
public class ScanResult
{
    @Id
    private ScanResultKey id;

    @Field
    @Column(name = "name")
    private String name;
}

@Embeddable
public class ScanResultKey implements Serializable
{
    @ManyToOne
    @JoinColumn(name = "eA", referencedColumnName = "id")
    private EntityA entA;

    //others...
}

I have read in previous posts that this was an issue in Search 4.4 (when having composite id and foreign relations), but this should be fixed in 5.5. So apparently it is my fault. But I can't figure out what could I do wrong

Exception:

org.hibernate.search.exception.SearchException: HSEARCH000135: Unable to guess FieldBridge for id in entities.keys.ScanResultKey

Note: I only need one field(name) to be indexed

Could you please point out what I'm doing wrong?

The main problem here is the assumption that you don't need to use the `FieldBridge`. Are you able to point a finger to what led you into this misunderstanding? I'd be happy to try improve the documentation and the error message. — Sanne, Jan 03 '17 at 10:05
@Sanne thanks for your reply. It's more me being stupid, rather than documentation problem. My thought was since Composite Key Class is `Serializable`, `Hibernate Search` can write/recreate it to/from Lucene index. And after coming with this solution I understood that my assumption was wrong. But I'm not an expert by any means, so this thought is not really worth be taken into account. Thanks again, Sanne — Eugene, Jan 03 '17 at 16:41
Ok, thanks for the feedback! I'll still see if we can improve the clarity of the error message. — Sanne, Jan 06 '17 at 15:47

score 3 · Accepted Answer · answered Dec 29 '16 at 20:35

OK, Since this question got interest near to none, according to view count, here is, briefly, the way I managed (hopefully) to resolve the problem (Please, correct me if you know more)

Verify modules' versions compatibility

According to one of the commenters in this SO question, not all (even latest) versions are compatible with each other. For example:

Hibernate Search 5.5 works with Hibernate ORM 5.0.x and 5.1.x (NOT with 5.2.x), and with Apache Lucene 5.3.x, 5.4.x and 5.5.x (Not 6.0)

Stated by: Sanne

This is not a fix to this particular problem, but might save from other issues

Create a FieldBridge for Composite Key implementing TwoWayFieldBridge

public class ScanResultBridge implements TwoWayFieldBridge
Add annotation to Entity Class, specifying the implementation of Bridge

@FieldBridge(impl = ScanResultBridge.class) private ScanResultKey id;

Your solution is correct as any non-trivial Id will need a custom FieldBridge. To use Hibernate ORM `5.2.x` get Hibernate Search `5.7.x`: http://hibernate.org/search/downloads/ — Sanne, Jan 03 '17 at 10:02

Unable to guess FieldBridge in Search 5.5. Unindexed Fields

1 Answers1