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.../test/query/hql/instantiation/DynamicInstantiationWithJoinAndGroupByAndParameterTest.java
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/* | ||
* 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.orm.test.query.hql.instantiation; | ||
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import java.util.List; | ||
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import org.hibernate.testing.orm.junit.EntityManagerFactoryScope; | ||
import org.hibernate.testing.orm.junit.JiraKey; | ||
import org.hibernate.testing.orm.junit.Jpa; | ||
import org.junit.jupiter.api.AfterAll; | ||
import org.junit.jupiter.api.BeforeAll; | ||
import org.junit.jupiter.api.Test; | ||
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import jakarta.persistence.CascadeType; | ||
import jakarta.persistence.Entity; | ||
import jakarta.persistence.FetchType; | ||
import jakarta.persistence.GeneratedValue; | ||
import jakarta.persistence.Id; | ||
import jakarta.persistence.JoinColumn; | ||
import jakarta.persistence.ManyToOne; | ||
import jakarta.persistence.Table; | ||
import jakarta.persistence.TypedQuery; | ||
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import static org.junit.jupiter.api.Assertions.assertEquals; | ||
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/** | ||
* @author Marco Belladelli | ||
*/ | ||
@Jpa(annotatedClasses = { | ||
DynamicInstantiationWithJoinAndGroupByAndParameterTest.Action.class, | ||
DynamicInstantiationWithJoinAndGroupByAndParameterTest.UserEntity.class | ||
}) | ||
@JiraKey("HHH-15991") | ||
public class DynamicInstantiationWithJoinAndGroupByAndParameterTest { | ||
private static final String PARTNER_NUMBER = "1111111111"; | ||
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@BeforeAll | ||
public void setUp(EntityManagerFactoryScope scope) { | ||
scope.inTransaction( entityManager -> { | ||
final UserEntity user1 = new UserEntity( "John", "Tester" ); | ||
entityManager.persist( user1 ); | ||
entityManager.persist( new Action( PARTNER_NUMBER, "Test 1", user1 ) ); | ||
entityManager.persist( new Action( PARTNER_NUMBER, "Test 2", user1 ) ); | ||
} ); | ||
} | ||
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@AfterAll | ||
public void tearDown(EntityManagerFactoryScope scope) { | ||
scope.inTransaction( entityManager -> { | ||
entityManager.createQuery( "delete from Action" ).executeUpdate(); | ||
entityManager.createQuery( "delete from UserEntity" ).executeUpdate(); | ||
} ); | ||
} | ||
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@Test | ||
public void testIt(EntityManagerFactoryScope scope) { | ||
scope.inTransaction( entityManager -> { | ||
TypedQuery<UserStatistic> query = entityManager.createQuery( | ||
"select new " + getClass().getName() + "$UserStatistic(u, count(a))" + | ||
" from Action a inner join a.user u" + | ||
" where a.partnerNumber = :partnerNumber" + | ||
" group by u", | ||
UserStatistic.class | ||
); | ||
query.setParameter( "partnerNumber", PARTNER_NUMBER ); | ||
UserStatistic result = query.getSingleResult(); | ||
assertEquals( "John Tester", result.getName() ); | ||
assertEquals( 2, result.getCount() ); | ||
} ); | ||
} | ||
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@Entity(name = "UserEntity") | ||
@Table(name = "UserEntity") | ||
public static class UserEntity { | ||
@Id | ||
@GeneratedValue | ||
private Long id; | ||
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private String firstname; | ||
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private String lastname; | ||
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public UserEntity() { | ||
} | ||
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public UserEntity(String firstname, String lastname) { | ||
this.firstname = firstname; | ||
this.lastname = lastname; | ||
} | ||
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public Long getId() { | ||
return id; | ||
} | ||
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public String getFirstname() { | ||
return firstname; | ||
} | ||
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public void setFirstname(String firstname) { | ||
this.firstname = firstname; | ||
} | ||
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public String getLastname() { | ||
return lastname; | ||
} | ||
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public void setLastname(String lastname) { | ||
this.lastname = lastname; | ||
} | ||
} | ||
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@Entity(name = "Action") | ||
@Table(name = "Action") | ||
public static class Action { | ||
@Id | ||
@GeneratedValue | ||
private Long id; | ||
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private String partnerNumber; | ||
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private String title; | ||
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@ManyToOne(fetch = FetchType.LAZY, cascade = { CascadeType.MERGE }) | ||
@JoinColumn(name = "fk_user_id") | ||
private UserEntity user; | ||
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public Action() { | ||
} | ||
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public Action(String partnerNumber, String title, UserEntity user) { | ||
this.partnerNumber = partnerNumber; | ||
this.title = title; | ||
this.user = user; | ||
} | ||
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public Long getId() { | ||
return id; | ||
} | ||
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public String getPartnerNumber() { | ||
return partnerNumber; | ||
} | ||
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public void setPartnerNumber(String partnerNumber) { | ||
this.partnerNumber = partnerNumber; | ||
} | ||
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public String getTitle() { | ||
return title; | ||
} | ||
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public void setTitle(String title) { | ||
this.title = title; | ||
} | ||
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public UserEntity getUser() { | ||
return user; | ||
} | ||
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public void setUser(UserEntity user) { | ||
this.user = user; | ||
} | ||
} | ||
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public static class UserStatistic { | ||
private final String name; | ||
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private final Long count; | ||
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public UserStatistic(UserEntity user, Long count) { | ||
this.name = user != null ? user.getFirstname() + " " + user.getLastname() : null; | ||
this.count = count; | ||
} | ||
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public String getName() { | ||
return name; | ||
} | ||
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public Integer getCount() { | ||
return count.intValue(); | ||
} | ||
} | ||
} |