Hello.
I tried to my code in hibernate 4.1.4 final , unfortunately it does not work.
Hibernate's nullable attribute at @embedded doesn't work?
My code show below:
Code:
/**
* Sample Entity
*
* @author nobukick
*/
@Entity
@Table(name= "Sample")
public class Sample implements Serializable {
@Id
@GeneratedValue(strategy = GenerationType.AUTO)
private Long id;
@Embedded
private EmbeddableNames embeddableNames;
private String comment;
public Sample() {}
public EmbeddableNames getEmbeddableNames() {
return embeddableNames;
}
public void setEmbeddableNames(EmbeddableNames embeddableNames) {
this.embeddableNames = embeddableNames;
}
public String getComment() {
return comment;
}
public void setComment(String comment) {
this.comment = comment;
}
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
}
Sample.class is JPA's entity. This embedded EmbeddableNames.class.
Code:
/**
* Sample Attributes
*
* @author nobukick
*/
@Embeddable
public class EmbeddableNames implements Serializable {
/** First Name */
@Column(name = "FirstName")
private String firstName;
/** Middle Name(nullable) */
@Column(name = "MiddleName", nullable=true)
private String middleName;
/** Family Name */
@Column(name = "FamilyName")
private String familyName;
public EmbeddableNames() {}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getFamilyName() {
return familyName;
}
public void setFamilyName(String familyName) {
this.familyName = familyName;
}
public String getMiddleName() {
return middleName;
}
public void setMiddleName(String middleName) {
this.middleName = middleName;
}
}
I figured middle name column is nullable, because many Asian peoples doesn't have that.
Code:
/**
* Embedded Object Search Test
*
* @author nobukick
*/
public class EmbeddableObjectSearchTest extends TestCase {
private EntityManagerFactory entityManagerFactory;
@Override
protected void setUp() throws Exception {
entityManagerFactory = Persistence.createEntityManagerFactory("testPU");
createData();
}
@Override
protected void tearDown() throws Exception {
entityManagerFactory.close();
}
/**
* create data;
*/
private void createData() {
EntityManager entityManager = entityManagerFactory.createEntityManager();
entityManager.getTransaction().begin();
/**
* west sample
*/
EmbeddableNames westName = new EmbeddableNames();
westName.setFirstName("Dorothy");
// set middle name
westName.setMiddleName("Walker");
westName.setFamilyName("Bush");
Sample westComment = new Sample();
westComment.setEmbeddableNames(westName);
westComment.setComment("I am Dorothy Walker Bush.");
entityManager.persist(westComment);
/**
* east sample
*/
EmbeddableNames eastName = new EmbeddableNames();
eastName.setFirstName("Tarou");
eastName.setFamilyName("YAMADA");
// east name doesnot hav middlename.
Sample eastComment = new Sample();
eastComment.setEmbeddableNames(eastName);
eastComment.setComment("I am tarou yamada.");
entityManager.persist(eastComment);
entityManager.getTransaction().commit();
entityManager.close();
}
/**
* Test west name origin
*/
public void testWestNameOriginSearch() {
EntityManager entityManager;
// now lets pull events from the database and list them
entityManager = entityManagerFactory.createEntityManager();
entityManager.getTransaction().begin();
// this case is success
EmbeddableNames names = new EmbeddableNames();
names.setFirstName("Dorothy");
names.setMiddleName("Walker");
names.setFamilyName("Bush");
Sample result = entityManager.createQuery("from Sample where embeddableNames = :names ", Sample.class).setParameter("names", names).getSingleResult();
entityManager.getTransaction().commit();
entityManager.close();
}
/**
* Test east name origin
* east name does not hav middlename(eq null);
*/
public void testEastNameOriginSearch() {
EntityManager entityManager;
// now lets pull events from the database and list them
entityManager = entityManagerFactory.createEntityManager();
entityManager.getTransaction().begin();
EmbeddableNames names = new EmbeddableNames();
names.setFirstName("Tarou");
names.setFamilyName("YAMADA");
Sample result = entityManager.createQuery("from Sample where embeddableNames = :names ", Sample.class).setParameter("names", names).getSingleResult();
assertEquals(result.getComment(), "I am tarou yamada.");
entityManager.getTransaction().commit();
entityManager.close();
}
}
Quote:
javax.persistence.NoResultException: No entity found for query
at org.hibernate.ejb.QueryImpl.getSingleResult(QueryImpl.java:290)
at net.noumin.hibernatesample.entity.EmbeddableObjectSearchTest.testEastNameOriginSearch(EmbeddableObjectSearchTest.java:109)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at junit.framework.TestCase.runTest(TestCase.java:168)
at junit.framework.TestCase.runBare(TestCase.java:134)
at junit.framework.TestResult$1.protect(TestResult.java:110)
at junit.framework.TestResult.runProtected(TestResult.java:128)
at junit.framework.TestResult.run(TestResult.java:113)
at junit.framework.TestCase.run(TestCase.java:124)
at junit.framework.TestSuite.runTest(TestSuite.java:243)
at junit.framework.TestSuite.run(TestSuite.java:238)
at org.junit.internal.runners.JUnit38ClassRunner.run(JUnit38ClassRunner.java:83)
at org.apache.maven.surefire.junit4.JUnit4TestSet.execute(JUnit4TestSet.java:59)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.executeTestSet(AbstractDirectoryTestSuite.java:115)
at org.apache.maven.surefire.suite.AbstractDirectoryTestSuite.execute(AbstractDirectoryTestSuite.java:102)
at org.apache.maven.surefire.Surefire.run(Surefire.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.maven.surefire.booter.SurefireBooter.runSuitesInProcess(SurefireBooter.java:350)
at org.apache.maven.surefire.booter.SurefireBooter.main(SurefireBooter.java:1021)
I expected EntityManager returned Tarou's entity after persisting it.
But EntityManager returned NoResultException.
How to do EntityManager returned it?
Has anyone seen this problem before?
I guess this is @embedded bugs.
Thanks
Login
FAQ
Search