org.hibernate.search.mapper.orm.session.SearchSession#org.hibernate.search.mapper.orm.Search源码实例Demo

@GET
@Path("/search")
@Produces(MediaType.TEXT_PLAIN)
public String testSearch() {
    SearchSession searchSession = Search.session(entityManager);

    List<Person> person = searchSession.search(Person.class)
            .where(f -> f.match().field("name").matching("john"))
            .sort(f -> f.field("name_sort"))
            .fetchHits(20);

    assertEquals(2, person.size());
    assertEquals("John Grisham", person.get(0).getName());
    assertEquals("John Irving", person.get(1).getName());

    person = searchSession.search(Person.class)
            .where(f -> f.nested().objectField("address").nest(
                    f.match().field("address.city").matching("london")))
            .sort(f -> f.field("name_sort"))
            .fetchHits(20);

    assertEquals(1, person.size());
    assertEquals("David Lodge", person.get(0).getName());

    return "OK";
}
 

@POST
@Path("/reindex")
public Response reindex(@QueryParam("limit") Long limit,
		@QueryParam("idfetchsize") Integer idfetchsize,
		@QueryParam("fetchsize") Integer fetchsize,
		@QueryParam("threads") Integer threads) {
	SearchSession searchSession = Search.session( em );

	MassIndexer indexer = searchSession.massIndexer( Page.class, User.class )
			.dropAndCreateSchemaOnStart( true )
			.typesToIndexInParallel( 2 )
			.batchSizeToLoadObjects( fetchsize == null ? 200 : fetchsize )
			.idFetchSize( idfetchsize == null ? 200 : idfetchsize )
			.threadsToLoadObjects( threads == null ? 5 :threads )
			.cacheMode( CacheMode.IGNORE ); // Cache is likely to do more harm than good in our case (very few relations)
	if ( limit != null ) {
		indexer.limitIndexedObjectsTo( limit );
	}

	indexer.start();

	return Response.accepted().build();
}
 

@Transactional
void onStart(@Observes StartupEvent ev) throws InterruptedException {
    // only reindex if we imported some content
    if (Book.count() > 0) {
        Search.session(em)
                .massIndexer()
                .startAndWait();
    }
}
 

@GET
@Path("author/search")
@Transactional
public List<Author> searchAuthors(@QueryParam String pattern,
        @QueryParam Optional<Integer> size) {
    List<Author> authors = Search.session(em)
            .search(Author.class)
            .where(f -> pattern == null || pattern.trim().isEmpty() ? f.matchAll()
                    : f.simpleQueryString()
                            .fields("firstName", "lastName", "books.title").matching(pattern))
            .sort(f -> f.field("lastName_sort").then().field("firstName_sort"))
            .fetchHits(size.orElse(20));
    return authors;
}
 

@PUT
@Path("/purge")
@Produces(MediaType.TEXT_PLAIN)
public String testPurge() {
    SearchSession searchSession = Search.session(entityManager);

    searchSession.workspace().purge();

    return "OK";
}
 

@PUT
@Path("/refresh")
@Produces(MediaType.TEXT_PLAIN)
public String testRefresh() {
    SearchSession searchSession = Search.session(entityManager);

    searchSession.workspace().refresh();

    return "OK";
}
 

@GET
@Path("/search-empty")
@Produces(MediaType.TEXT_PLAIN)
public String testSearchEmpty() {
    SearchSession searchSession = Search.session(entityManager);

    List<Person> person = searchSession.search(Person.class)
            .where(f -> f.matchAll())
            .fetchHits(20);

    assertEquals(0, person.size());

    return "OK";
}
 

@PUT
@Path("/mass-indexer")
@Produces(MediaType.TEXT_PLAIN)
public String testMassIndexer() throws InterruptedException {
    SearchSession searchSession = Search.session(entityManager);

    searchSession.massIndexer().startAndWait();

    return "OK";
}
 

@Test
@Transactional(timeout=30)
public void testSearchIndex() throws Exception {
	final List<DocumentContentData> result = Search.session(entityManager).search(DocumentContentData.class).asEntity()
        .predicate(t -> t.match().fields("content").matching("programmering")).fetchHits(500);
	assertTrue("expect some result",result.size()> 0);
}
 

@Override
public SearchResult<Page> search(String term, PageSort sort, int offset, int limit) {
	SearchSession searchSession = Search.session( getEm() );

	return new SearchResult<>( searchSession.search( Page.class )
			.where( f -> {
				if ( term == null || term.isEmpty() ) {
					return f.matchAll();
				}
				else {
					return f.match()
							.field( "title" ).boost( 2.0f )
							.field( "content" )
							.matching( term );
				}
			} )
			.sort( f -> {
				switch ( sort ) {
					case TITLE:
						return f.field( "title_sort" );
					case RELEVANCE:
					default:
						return f.score();
				}
			} )
			.fetch( offset, limit )
	);
}
 

@POST
@Path("/client/reindex")
@Transactional(TxType.NEVER)
public void reindex() throws InterruptedException {
	Search.mapping( entityManagerFactory )
			.scope( Client.class )
			.massIndexer()
			.startAndWait();
}
 

@GET
@Path("/client/search")
public List<ClientRetrieveDto> search(@QueryParam("terms") String terms) {
	List<Client> result = Search.session( Panache.getEntityManager() )
			.search( Client.class )
			.predicate( f -> f.simpleQueryString()
					.fields( "name", "assignedManager.name" )
					.matching( terms )
					.defaultOperator( BooleanOperator.AND )
			)
			.fetchHits( 20 );

	return result.stream().map( mapper::toDto ).collect( Collectors.toList() );
}
 

private HibernateOrmSearchQueryResultDefinitionContext<Dog> createDogSearch() {
    return Search.getSearchSession(entityManager)
        .search(Dog.class);
}
 

@Override
public void updateSearchIndex() throws InterruptedException {
	Search.session(entityManager).massIndexer().transactionTimeout(TIMEOUT_IN_SECONDS).startAndWait();
}
 

/**
 * Gets the full text entity manager.
 *
 * @return the full text entity manager
 */
protected final SearchSession getFullTextEntityManager() {
	return Search.session(getEntityManager());
}