1.5. Searching
Now it is time to execute a first search. The general approach is to create a native Lucene query and then wrap this query into a org.hibernate.Query in order to get all the functionality one is used to from the Hibernate API. The following code will prepare a query against the indexed fields, execute it and return a list of
Books.
Example 1.8. Using Hibernate Session to create and execute a search
FullTextSession fullTextSession = Search.getFullTextSession(session);
Transaction tx = fullTextSession.beginTransaction();
// create native Lucene query
String[] fields = new String[]{"title", "subtitle", "authors.name", "publicationDate"};
MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, new StandardAnalyzer());
org.apache.lucene.search.Query query = parser.parse( "Java rocks!" );
// wrap Lucene query in a org.hibernate.Query
org.hibernate.Query hibQuery = fullTextSession.createFullTextQuery(query, Book.class);
// execute search
List result = hibQuery.list();
tx.commit();
session.close();
Example 1.9. Using JPA to create and execute a search
EntityManager em = entityManagerFactory.createEntityManager();
FullTextEntityManager fullTextEntityManager =
org.hibernate.search.jpa.Search.getFullTextEntityManager(em);
em.getTransaction().begin();
// create native Lucene query
String[] fields = new String[]{"title", "subtitle", "authors.name", "publicationDate"};
MultiFieldQueryParser parser = new MultiFieldQueryParser(fields, new StandardAnalyzer());
org.apache.lucene.search.Query query = parser.parse( "Java rocks!" );
// wrap Lucene query in a javax.persistence.Query
javax.persistence.Query persistenceQuery = fullTextEntityManager.createFullTextQuery(query, Book.class);
// execute search
List result = persistenceQuery.getResultList();
em.getTransaction().commit();
em.close();
