/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* 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.test.hql;
import javax.persistence.Entity;
import javax.persistence.Id;
import org.hibernate.QueryException;
import org.hibernate.Session;
import org.hibernate.Transaction;
import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
import org.junit.Test;
import static org.hibernate.testing.junit4.ExtraAssertions.assertTyping;
import static org.junit.Assert.fail;
/**
* @author Steve Ebersole
*/
public class CaseStatementTest extends BaseCoreFunctionalTestCase {
@Entity(name = "Person")
public static class Person {
@Id
private Integer id;
private String name;
}
@Override
protected Class<?>[] getAnnotatedClasses() {
return new Class[] { Person.class };
}
@Test
public void testSimpleCaseStatementFixture() {
Session s = openSession();
Transaction t = s.beginTransaction();
s.createQuery( "select case p.name when 'Steve' then 'x' else 'y' end from Person p" )
.list();
t.commit();
s.close();
}
@Test
public void testSimpleCaseStatementWithParamResult() {
Session s = openSession();
Transaction t = s.beginTransaction();
s.createQuery( "select case p.name when 'Steve' then :opt1 else p.name end from Person p" )
.setString( "opt1", "x" )
.list();
t.commit();
s.close();
}
@Test
public void testSimpleCaseStatementWithParamAllResults() {
Session s = openSession();
Transaction t = s.beginTransaction();
try {
s.createQuery( "select case p.name when 'Steve' then :opt1 else :opt2 end from Person p" )
.setString( "opt1", "x" )
.setString( "opt2", "y" )
.list();
fail( "was expecting an exception" );
}
catch (IllegalArgumentException e) {
assertTyping( QueryException.class, e.getCause() );
}
catch (QueryException expected) {
// expected
}
s.createQuery( "select case p.name when 'Steve' then cast( :opt1 as string ) else cast( :opt2 as string) end from Person p" )
.setString( "opt1", "x" )
.setString( "opt2", "y" )
.list();
t.commit();
s.close();
}
@Test
public void testSearchedCaseStatementFixture() {
Session s = openSession();
Transaction t = s.beginTransaction();
s.createQuery( "select case when p.name = 'Steve' then 'x' else 'y' end from Person p" )
.list();
t.commit();
s.close();
}
@Test
public void testSearchedCaseStatementWithParamResult() {
Session s = openSession();
Transaction t = s.beginTransaction();
s.createQuery( "select case when p.name = 'Steve' then :opt1 else p.name end from Person p" )
.setString( "opt1", "x" )
.list();
t.commit();
s.close();
}
@Test
public void testSearchedCaseStatementWithAllParamResults() {
Session s = openSession();
Transaction t = s.beginTransaction();
try {
s.createQuery( "select case when p.name = 'Steve' then :opt1 else :opt2 end from Person p" )
.setString( "opt1", "x" )
.setString( "opt2", "y" )
.list();
fail( "was expecting an exception" );
}
catch (IllegalArgumentException e) {
assertTyping( QueryException.class, e.getCause() );
}
catch (QueryException expected) {
// expected
}
s.createQuery( "select case when p.name = 'Steve' then cast( :opt1 as string) else :opt2 end from Person p" )
.setString( "opt1", "x" )
.setString( "opt2", "y" )
.list();
t.commit();
s.close();
}
}