/*
* Hibernate Search, full-text search for your domain model
*
* License: GNU Lesser General Public License (LGPL), version 2.1 or later
* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
*/
package org.hibernate.search.test.dsl;
import org.hibernate.search.annotations.DocumentId;
import org.hibernate.search.annotations.Field;
import org.hibernate.search.annotations.Indexed;
import org.hibernate.search.backend.spi.Work;
import org.hibernate.search.backend.spi.WorkType;
import org.hibernate.search.engine.spi.SearchFactoryImplementor;
import org.hibernate.search.exception.EmptyQueryException;
import org.hibernate.search.query.dsl.QueryBuilder;
import org.hibernate.search.testsupport.junit.SearchFactoryHolder;
import org.hibernate.search.testsupport.setup.TransactionContextForTest;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
/**
* Verifies an EmptyQueryException is thrown when appropriate.
*
* @author Sanne Grinovero <sanne@hibernate.org> (C) 2012 Red Hat Inc.
*/
public class EmptyQueryExceptionTest {
@Rule
public SearchFactoryHolder sfHolder = new SearchFactoryHolder( Book.class );
@Rule
public ExpectedException exceptions = ExpectedException.none();
@Test
public void verifyExceptionOnNonMeaningfullQueries() {
final SearchFactoryImplementor searchFactory = sfHolder.getSearchFactory();
Book book = new Book();
book.title = "Empty Book";
book.text = "The question is, does an empty book have 'space' tokens in it?";
Work work = new Work( book, book.title, WorkType.ADD, false );
TransactionContextForTest tc = new TransactionContextForTest();
searchFactory.getWorker().performWork( work, tc );
tc.end();
QueryBuilder queryBuilder = searchFactory.buildQueryBuilder().forEntity( Book.class ).get();
exceptions.expect( EmptyQueryException.class );
queryBuilder.keyword().onField( "text" ).matching( " " ).createQuery();
// Hence the answer is: a program won't be able to tell you.
}
@Indexed
static class Book {
@DocumentId
String title;
@Field
String text;
}
}