HHH-13380 Test for the issue
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/*
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* Hibernate, Relational Persistence for Idiomatic Java
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*
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* License: GNU Lesser General Public License (LGPL), version 2.1 or later.
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* See the lgpl.txt file in the root directory or <http://www.gnu.org/licenses/lgpl-2.1.html>.
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*/
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package org.hibernate.test.bytecode.enhancement.lazy;
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import org.hibernate.annotations.LazyToOne;
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import org.hibernate.annotations.LazyToOneOption;
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import org.hibernate.jpa.test.BaseEntityManagerFunctionalTestCase;
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import org.hibernate.testing.TestForIssue;
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import org.hibernate.testing.bytecode.enhancement.BytecodeEnhancerRunner;
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import org.junit.Before;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import javax.persistence.Basic;
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import javax.persistence.Entity;
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import javax.persistence.FetchType;
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import javax.persistence.GeneratedValue;
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import javax.persistence.Id;
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import javax.persistence.ManyToOne;
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import javax.persistence.OneToMany;
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import java.util.HashSet;
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import java.util.Objects;
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import java.util.Set;
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import static org.hibernate.testing.transaction.TransactionUtil.doInJPA;
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import static org.junit.Assert.assertEquals;
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@TestForIssue(jiraKey = "HHH-13380")
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@RunWith( BytecodeEnhancerRunner.class )
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public class LazyOneToManyWithEqualsImplementationTest
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extends BaseEntityManagerFunctionalTestCase {
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private Long personId;
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@Override
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protected Class<?>[] getAnnotatedClasses() {
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return new Class<?>[] { Person.class, Course.class };
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}
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@Before
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public void setUp() {
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doInJPA( this::entityManagerFactory, entityManager -> {
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Person p = new Person();
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entityManager.persist(p);
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personId = p.getId();
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Course c1 = new Course( "First Course", p );
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p.getCourses().add( c1 );
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entityManager.persist( c1 );
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Course c2 = new Course("Second Course", p );
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p.getCourses().add( c2 );
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entityManager.persist( c2 );
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});
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}
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@Test
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public void testRetrievalOfOneToMany() {
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doInJPA(this::entityManagerFactory, entityManager -> {
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Person p = entityManager.find( Person.class, personId );
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Set<Course> courses = p.getCourses();
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assertEquals( courses.size(), 2 );
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});
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}
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@Entity(name = "Person")
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public static class Person {
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@Id
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@GeneratedValue()
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private Long id;
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public Long getId() {
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return id;
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}
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@OneToMany(mappedBy="person", fetch = FetchType.LAZY)
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private Set<Course> courses = new HashSet<>();
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public Set<Course> getCourses() { return courses; }
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}
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@Entity(name = "Course")
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public static class Course {
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@Id
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@GeneratedValue()
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private Long id;
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public Long getId() { return id; }
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@Basic
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private String title;
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public String getTitle() { return title; }
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@ManyToOne(fetch = FetchType.LAZY)
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@LazyToOne(LazyToOneOption.NO_PROXY)
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private Person person;
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public Person getPerson() { return person; }
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protected Course() {}
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public Course(String title, Person person) {
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this.title = title;
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this.person = person;
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}
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@Override
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public boolean equals(Object o) {
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if ( this == o ) return true;
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if ( o == null || getClass() != o.getClass() ) return false;
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Course course = (Course) o;
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return title.equals( course.title ) &&
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person.equals( course.person );
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}
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@Override
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public int hashCode() {
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return Objects.hash( title, person );
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}
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}
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}
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