Hibernate

You may need to reindex your data when upgrading to a new major version of Hibernate Search. This happens when Lucene forces a new index format or when Hibernate Search decides to index a property more efficiently by default. The best approach is to regenerate the index structures using the Mass Indexer. If reindexing is not possible, you can try using Lucene's IndexUpgrader or carefully updating the Hibernate Search mappings.

To get started with the Hibernate Search archetype, use the following command, specifying the latest Hibernate Search version for archetypeVersion: mvn archetype:generate -DarchetypeGroupId=org.hibernate -DarchetypeArtifactId=hibernate-search-quickstart -DarchetypeVersion=4.0.0.Final -DarchetypeRepository=http://repository.jboss.org/nexus/content/groups/public-jboss/. Once the sample project is created, you can inspect the sources and run mvn test.

This error occurs when event listeners are not properly configured. If you are not using Hibernate Annotations, you need to manually configure the event listeners in your hibernate.cfg.xml file. Refer to the online documentation for the specific event listener configuration required for your version of Hibernate Search. Ensure you are using the correct versions of Hibernate Annotations and Search, and check the Compatibility Matrix for the right combination of jar files.

To properly shutdown Hibernate Search, you must close Hibernate's SessionFactory. This is mandatory to ensure that background threads managing the indexes are gracefully closed. Use sessionFactory.close(). When using exclusive_index_use=true, it's also necessary to clear the index locks, which is enabled by default since Hibernate Search 4.0.

If the index is not being updated at transaction commit in a Spring application, ensure you are using the correct transaction manager. Check the Spring integration documentation and verify that your transaction manager is configured as follows: .

This error occurs because Hibernate Search 3.0 requires Hibernate Annotations 3.3.x, but JBoss AS 4.2 ships with 3.2.x. To fix this, replace the following jars in [JBOSS_HOME]/server/[myconfig]/lib: hibernate-annotations.jar (3.3.x for Search 3.0), hibernate-validator.jar (3.0.x for Search 3.0), hibernate-entitymanager.jar (3.3.x for Search 3.0), and hibernate-commons-annotations.jar (3.0.x for Search 3.0). Then place the Hibernate Search and Lucene JARs in your EAR or WAR.

No, you cannot mix HQL and Lucene queries in Hibernate Search. There is no way to intersect the results from both queries without iterating on at least one of the results. Instead, consider adding additional fields to the Lucene index and then look at the Filters in the reference documentation.

To avoid two queries when retrieving results and size, call the methods in the following order: fullTextQuery.list(); //or iterate or scroll fullTextQuery.getResultSize(); This will execute a single Lucene query instead of two and will be faster.