Transient method in Hibernate Search referencing proxy while MassIndexing

Question

I am using a MassIndexer to index my documents. I have a method annotated with @Transient that references a lazily initialized @OneToMany collection like this:

@OneToMany
@JoinColumns({
        @JoinColumn(name = "insertForeignKeyHere", referencedColumnName = "insertPrimaryKeyHere"),... })
@NotFound(action = NotFoundAction.IGNORE)
public Set<AdditionalOption> getAdditionalOptions() {
    return this.additionalOptions;
}

@Transient
@IndexedEmbedded
public Set<AdditionalOption> getActiveAdditionalOptions() {
    Set<AdditionalOption> ret = new HashSet<>();
    //the next line produces the error
    for (AdditionalOption addOpt : this.getAdditionalOptions()) {
        //do stuff.
    }
    return ret;
}

Whenever I try to Index this document with a MassIndexer and with no @OneToMany(fetch = FetchType.EAGER) I get this Exception:

org.hibernate.LazyInitializationException: failed to lazily initialize a collection of role: <...>, could not initialize proxy - no Session

Any thoughts on how to do this without the EAGER fetching? (I have 4 or 5 collections that would need eager fetching if this didn't work differently -> HUGE performance problems)

Thanks in advance.

btw: I am using

<hibernate.version>4.3.1.Final</hibernate.version>
<hibernate.search.version>4.5.0.Alpha2</hibernate.search.version>
<lucene.version>3.6.2</lucene.version>

Answer 1

Try using version Hibernate Search 4.5.0.Final : it looks like you're hitting HSEARCH-1260, which we recently resolved.

Answer 2

If there is no other way on doing this, I will do it with this work-around (with different bean-classes than in the first posting). But I don't really like it.

public static FeatureValueRepository featureValueRepository;
private static final Lock featureValueRepositoryLock = new ReentrantLock();

private static FeatureValueRepository getFeatureValueRepository() {
    featureValueRepositoryLock.lock();
    try {
        if (featureValueRepository == null) {
            //ContextProvider is a custom class in our project
            featureValueRepository = ContextProvider.getContext().getBean(
                    FeatureValueRepository.class);
        }
        return featureValueRepository;
    } finally {
        featureValueRepositoryLock.unlock();
    }
}

And then call a method that queries by the root-bean's id.