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getFullTextEntityManager Null Pointer Exception

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dan0

Post subject: getFullTextEntityManager Null Pointer Exception

Posted: Sun Jul 11, 2010 5:01 pm

Newbie

Joined: Mon Oct 26, 2009 3:38 pm
Posts: 18

When I try to get the FullTextEntityManager I continually get the error below. Anyone know what could be causing this? I'm using Hibernate Search 3.2.0, Hibernate Core & Entity-Manager 3.5.1, Lucene 2.9.2

Quote:

Caused by: java.lang.NullPointerException
at org.hibernate.search.jpa.impl.FullTextEntityManagerImpl.getFullTextSession(FullTextEntityManagerImpl.java:62)
at org.hibernate.search.jpa.impl.FullTextEntityManagerImpl.createFullTextQuery(FullTextEntityManagerImpl.java:98)
at com.facility.ws.search.BasicSearch.buildJpaQuery(BasicSearch.java:69)

This is the method were the exception (at the line where static method getFullTextEntityManager() is called):

Code:

public org.hibernate.search.jpa.FullTextQuery buildJpaQuery(org.apache.lucene.search.Query luceneQuery, Class entity) {
        FullTextEntityManager ftem = org.hibernate.search.jpa.Search.getFullTextEntityManager(em);
        org.hibernate.search.jpa.FullTextQuery query = ftem.createFullTextQuery(luceneQuery, entity);
        return query;
}

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hardy.ferentschik

Post subject: Re: getFullTextEntityManager Null Pointer Exception

Posted: Mon Jul 12, 2010 4:38 am

Hibernate Team

Joined: Thu Apr 05, 2007 5:52 am
Posts: 1689
Location: Sweden

Hi,

are you sure your entity manager is not null? The line throwing the NullPointerException is:

Code:

Object delegate = em.getDelegate();

Seems to me that em must be null.

--Hardy

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dan0

Post subject: Re: getFullTextEntityManager Null Pointer Exception

Posted: Mon Jul 12, 2010 7:46 pm

Newbie

Joined: Mon Oct 26, 2009 3:38 pm
Posts: 18

hardy.ferentschik wrote:

Hi,

are you sure your entity manager is not null?

Seems to me that em must be null.

--Hardy

You're right, the entity manager was null. I mistakenly directly instantiated the class rather than relying on Spring DI to provide an instance of the class, hence circumventing the DI process and thus resulting in a null em.

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