Red Hat Summit Red Hat SummitSupportConsoleDevelopersStart a trialContact

5.2.3. ResultTransformer

Especially when using projection, the data structure returned by a query (an object array in this case), is not always matching the application needs. It is possible to apply a ResultTransformer operation post query to match the targeted data structure:

Example 5.12. Using ResultTransformer in conjuncton with projections

org.hibernate.search.FullTextQuery query = s.createFullTextQuery( luceneQuery, Book.class );
query.setProjection( "title", "mainAuthor.name" );

query.setResultTransformer( new AliasToBeanResultTransformer( BookView.class ) );
List<BookView> results = (List<BookView>) query.list();
for(BookView view : results) {
    log.info( "Book: " + view.getTitle() + ", " + view.getAuthor() );
}
Copy to Clipboard Toggle word wrap
Examples of ResultTransformer implementations can be found in the Hibernate Core codebase.
Back to top
Red Hat logoGithubredditYoutubeTwitter

Learn

Try, buy, & sell

Communities

About Red Hat Documentation

We help Red Hat users innovate and achieve their goals with our products and services with content they can trust. Explore our recent updates.

Making open source more inclusive

Red Hat is committed to replacing problematic language in our code, documentation, and web properties. For more details, see the Red Hat Blog.

About Red Hat

We deliver hardened solutions that make it easier for enterprises to work across platforms and environments, from the core datacenter to the network edge.

Theme

© 2025 Red Hat