Author: max.andersen(a)jboss.com Date: 2006-09-21 17:10:01 -0400 (Thu, 21 Sep 2006) New Revision: 10509 Added: trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/CascadeTest.java trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Student.java trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Teacher.java Log: test showing massive cascading Added: trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/CascadeTest.java =================================================================== --- trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/CascadeTest.java 2006-09-21 14:41:33 UTC (rev 10508) +++ trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/CascadeTest.java 2006-09-21 21:10:01 UTC (rev 10509) @@ -0,0 +1,66 @@ +//$Id: FetchTest.java 9796 2006-04-26 06:46:52Z epbernard $ +package org.hibernate.ejb.test.cascade; + +import java.util.List; + +import javax.persistence.EntityManager; + +import org.hibernate.ejb.test.TestCase; + + +/** + * @author Max Rydahl Andersen + */ +public class CascadeTest extends TestCase { + + public void testCascade() throws Exception { + + EntityManager em = factory.createEntityManager(); + em.getTransaction().begin(); + + Teacher teacher = null; + + teacher = new Teacher(); + + Student student = new Student(); + + teacher.setFavoriteStudent(student); + student.setFavoriteTeacher(teacher); + + teacher.getStudents().add(student); + student.setPrimaryTeacher(teacher); + + em.persist( teacher ); + em.getTransaction().commit(); + + System.out.println("***************************"); + em = factory.createEntityManager(); + em.getTransaction().begin(); + + Teacher foundTeacher = (Teacher) em.createQuery( "select t from Teacher as t" ).getSingleResult(); + + System.out.println(foundTeacher); + System.out.println(foundTeacher.getFavoriteStudent()); + + for (Student fstudent : foundTeacher.getStudents()) { + System.out.println(fstudent); + System.out.println(fstudent.getFavoriteTeacher()); + System.out.println(fstudent.getPrimaryTeacher()); + } + + em.getTransaction().commit(); // here *alot* of flushes occur on an object graph that has *Zero* changes. + em.close(); + + + } + + + public Class[] getAnnotatedClasses() { + return new Class[]{ + Teacher.class, + Student.class + }; + } + + +} Added: trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Student.java =================================================================== --- trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Student.java 2006-09-21 14:41:33 UTC (rev 10508) +++ trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Student.java 2006-09-21 21:10:01 UTC (rev 10509) @@ -0,0 +1,57 @@ +package org.hibernate.ejb.test.cascade; + +import javax.persistence.CascadeType; +import javax.persistence.Entity; +import javax.persistence.GeneratedValue; +import javax.persistence.Id; +import javax.persistence.ManyToOne; +import javax.persistence.OneToOne; + +import org.hibernate.annotations.AccessType; + +@Entity +@AccessType("field") +public class Student { + + @Id @GeneratedValue + Long id; + + String name; + + @ManyToOne(cascade={CascadeType.MERGE, CascadeType.PERSIST}) + private Teacher primaryTeacher; + + @OneToOne(cascade={CascadeType.MERGE, CascadeType.PERSIST}) + private Teacher favoriteTeacher; + + public Student() { + } + + public Teacher getFavoriteTeacher() { + return favoriteTeacher; + } + + public void setFavoriteTeacher(Teacher lifeCover) { + this.favoriteTeacher = lifeCover; + } + + public Teacher getPrimaryTeacher() { + return primaryTeacher; + } + + public void setPrimaryTeacher(Teacher relativeTo) { + this.primaryTeacher = relativeTo; + } + + public Long getId() { + return id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } +} Added: trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Teacher.java =================================================================== --- trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Teacher.java 2006-09-21 14:41:33 UTC (rev 10508) +++ trunk/HibernateExt/ejb/src/test/org/hibernate/ejb/test/cascade/Teacher.java 2006-09-21 21:10:01 UTC (rev 10509) @@ -0,0 +1,62 @@ +package org.hibernate.ejb.test.cascade; + +import java.util.HashSet; +import java.util.Set; + +import javax.persistence.CascadeType; +import javax.persistence.Entity; +import javax.persistence.GeneratedValue; +import javax.persistence.Id; +import javax.persistence.OneToMany; +import javax.persistence.OneToOne; + +import org.hibernate.annotations.AccessType; + +@Entity +@AccessType("field") +public class Teacher { + + @Id @GeneratedValue + Long id; + + String name; + + @OneToMany(mappedBy="primaryTeacher", cascade={CascadeType.MERGE, CascadeType.PERSIST}) + private Set<Student> students = new HashSet<Student>(); + + @OneToOne(mappedBy="favoriteTeacher", cascade={CascadeType.MERGE, CascadeType.PERSIST}) + private Student favoriteStudent; + + public Teacher() { + } + + public Student getFavoriteStudent() { + return favoriteStudent; + } + + public void setFavoriteStudent( + Student contributionOrBenefitParameters) { + this.favoriteStudent = contributionOrBenefitParameters; + } + + public Set<Student> getStudents() { + return students; + } + + public void setStudents( + Set<Student> todoCollection) { + this.students = todoCollection; + } + + public Long getId() { + return id; + } + + public String getName() { + return name; + } + + public void setName(String name) { + this.name = name; + } +}