[Hibernate-JIRA] Created: (HHH-2269) Many-to-one cascade fails with TransientObjectException if the inverse collection is marked CascadeType.DELETE_ORPHAN
by Edward Costello (JIRA)
Many-to-one cascade fails with TransientObjectException if the inverse collection is marked CascadeType.DELETE_ORPHAN
---------------------------------------------------------------------------------------------------------------------
Key: HHH-2269
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2269
Project: Hibernate3
Type: Bug
Components: core
Versions: 3.2.0.cr2, 3.2.1
Environment: Using hibernate annotations.
Reporter: Edward Costello
Attachments: TestBidirectionalCascade.java
When both a many-to-one (child) and it's inverse one-to-many collection (on parent) are cascading. Attempting to save a child directly and cascade the save to the parent throws a TransientObjectException if the parent's collection is mapped CascadeType.DELETE_ORPHAN. For Example, with the classes below:
@Entity
public class Parent {
@OneToMany(mappedBy = "parent")
@Cascade(value = {CascadeType.ALL, CascadeType.DELETE_ORPHAN})
Set<DeleteOrphanChild> deleteOrphanChildren;
}
@Entity
public class DeleteOrphanChild {
@ManyToOne
@Cascade(value = CascadeType.ALL)
Parent parent;
}
Calling session.save() with an instance of the parent will cascade the save to the child as expected. However, calling save on an instance of the child will throw the TransientObjectException below while attempting to cascade the save to the parent.
org.hibernate.TransientObjectException: cascade.test.TestBidirectionalCascade$DeleteOrphanChild
at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:216)
at org.hibernate.collection.AbstractPersistentCollection.getOrphans(AbstractPersistentCollection.java:889)
at org.hibernate.collection.PersistentSet.getOrphans(PersistentSet.java:51)
at org.hibernate.engine.CollectionEntry.getOrphans(CollectionEntry.java:350)
at org.hibernate.engine.Cascade.deleteOrphans(Cascade.java:336)
at org.hibernate.engine.Cascade.cascadeCollectionElements(Cascade.java:318)
at org.hibernate.engine.Cascade.cascadeCollection(Cascade.java:185)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:160)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
at org.hibernate.engine.Cascade.cascade(Cascade.java:248)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeAfterSave(AbstractSaveEventListener.java:437)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:326)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:180)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.performSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:98)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSaveOrUpdate(SessionImpl.java:509)
at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:501)
at org.hibernate.engine.CascadingAction$1.cascade(CascadingAction.java:134)
at org.hibernate.engine.Cascade.cascadeToOne(Cascade.java:213)
at org.hibernate.engine.Cascade.cascadeAssociation(Cascade.java:157)
at org.hibernate.engine.Cascade.cascadeProperty(Cascade.java:108)
at org.hibernate.engine.Cascade.cascade(Cascade.java:248)
at org.hibernate.event.def.AbstractSaveEventListener.cascadeBeforeSave(AbstractSaveEventListener.java:412)
at org.hibernate.event.def.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:261)
at org.hibernate.event.def.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:180)
at org.hibernate.event.def.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:108)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.saveWithGeneratedOrRequestedId(DefaultSaveOrUpdateEventListener.java:186)
at org.hibernate.event.def.DefaultSaveEventListener.saveWithGeneratedOrRequestedId(DefaultSaveEventListener.java:33)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:175)
at org.hibernate.event.def.DefaultSaveEventListener.performSaveOrUpdate(DefaultSaveEventListener.java:27)
at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.onSaveOrUpdate(DefaultSaveOrUpdateEventListener.java:70)
at org.hibernate.impl.SessionImpl.fireSave(SessionImpl.java:537)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:525)
at org.hibernate.impl.SessionImpl.save(SessionImpl.java:521)
If the DELETE_ORPHAN cascade is removed the save works fine. The attached test case runs against an in memory HSQLDB database. It contains 4 tests, the second test (testSaveChildDeleteOrphan) fails showing the above exception. The other three pass showing that cascading from the parent works and that cascading in both directions remove if the DELETE_ORPHAN cascade is removed.
We've only tested this with annotations, we haven't tried to reproduce it using hibernate mapping files.
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14 years, 5 months
[Hibernate-JIRA] Created: (EJB-225) EntityManager.find infinite loop related to ANN-381
by John Schneider (JIRA)
EntityManager.find infinite loop related to ANN-381
---------------------------------------------------
Key: EJB-225
URL: http://opensource.atlassian.com/projects/hibernate/browse/EJB-225
Project: Hibernate Entity Manager
Type: Bug
Environment: Hibernate Annotations 3.2.0.cr2
Hibernate EntityManager 3.2.0.cr2
Hibernate Core 3.2.0.cr4
Reporter: John Schneider
Attachments: Test.zip
I've tested the fix for ANN-381 and found that the improvement is not working correctly with the Entity Manager, specifically the find method. When calling the find method on a OneToMany collection mapped by a field in a primary key class, the Entity manager goes into an infinite loop of selecting records.
Please note that a workaround is to replace the entity managers find method with a query, such as this:
Query query = entityManager.createQuery("select c from Card c where c.id = :id");
query.setParameter("id", id);
return (Card) query.getSingleResult();
However, this workaround doesn't work if you have other entities that relate to something like the Card entity, shown below. I'll expand on the example code from ANN-381 to show the problem of infinite looping when trying to load the related collection.
@Entity
public class Card implements Serializable {
@Id
private String id;
@OneToMany(cascade = CascadeType.ALL, fetch = FetchType.EAGER, mappedBy = "primaryKey.card")
private Set<CardField> fields;
public Card(String id) {
this();
this.id = id;
}
Card() {
fields = new HashSet<CardField>();
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public void addField(Card card, Key key) {
fields.add(new CardField(card, key));
}
}
@Entity
public class CardField implements Serializable {
@EmbeddedId
private PrimaryKey primaryKey;
CardField(Card card, Key key) {
this.primaryKey = new PrimaryKey(card, key);
}
CardField() {
}
}
@Embeddable
public class PrimaryKey implements Serializable {
@ManyToOne(optional = false)
private Card card;
@ManyToOne(optional = false)
private Key key;
public PrimaryKey(Card card, Key key) {
this.card = card;
this.key = key;
}
PrimaryKey() {}
}
@Entity
public class Key implements Serializable {
@Id
private String id;
public Key(String id) {
this.id = id;
}
Key() {
}
}
>From what I can tell, this maps fine with the correct Hibernate libs and JBoss EJB Embeddable Alpha 9. However, the Entity Manager must be creating bad query code or something with similar results to having bad queries. I've testing with the following DAO:
@Stateless
public class CardDAOBean implements CardDAOLocal {
@PersistenceContext
private EntityManager entityManager;
public void createCard(Card card) {
entityManager.persist(card);
}
public Card findCard(String id) {
return entityManager.find(Card.class, id);
}
public void createKey(Key key) {
entityManager.persist(key);
}
}
The Test class:
public class EJBTest {
private Card card;
private Key key;
public static void main(String[] args) {
TestRunner.run(suite());
}
public static junit.framework.Test suite() {
TestSuite suite = new TestSuite("Test for ANN-381");
suite.addTest(new JUnit4TestAdapter(EJBTest.class));
// setup test so that embedded JBoss is started/stopped once for all
// tests here.
TestSetup wrapper = new TestSetup(suite) {
protected void setUp() {
startupEmbeddedJboss();
}
protected void tearDown() {
shutdownEmbeddedJboss();
}
};
return wrapper;
}
@Before
public void setup() {
card = new Card("cardId");
key = new Key("keyId");
card.addField(card, key);
}
@Test
public void persist() throws Exception {
InitialContext ctx = getInitialContext();
CardDAOLocal CardDAOLocal = (CardDAOLocal) ctx.lookup("CardDAOBean/local");
CardDAOLocal.createKey(key);
CardDAOLocal.createCard(card);
Card card = CardDAOLocal.findCard(this.card.getId());
assertNotNull(card);
}
private static void startupEmbeddedJboss() {
EJB3StandaloneBootstrap.boot(null);
EJB3StandaloneBootstrap.scanClasspath();
}
private static void shutdownEmbeddedJboss() {
EJB3StandaloneBootstrap.shutdown();
}
public static InitialContext getInitialContext() throws Exception {
Hashtable properties = getInitialContextProperties();
return new InitialContext(properties);
}
private static Hashtable getInitialContextProperties() {
Hashtable<String, String> props = new Hashtable<String, String>();
props.put("java.naming.factory.initial",
"org.jnp.interfaces.LocalOnlyContextFactory");
props.put("java.naming.factory.url.pkgs",
"org.jboss.naming:org.jnp.interfaces");
return props;
}
}
Here's some relevant debugging output:
Row insert: update CardField set card_id=? where card_id=? and key_id=?
Row delete: update CardField set card_id=null where card_id=? and card_id=? and key_id=?
One-shot delete: update CardField set card_id=null where card_id=?
Static select for entity entity.CardField: select cardfield0_.card_id as card2_1_0_, cardfield0_.key_id as key1_1_0_ from CardField cardfield0_ where cardfield0_.card_id=? and cardfield0_.key_id=?
Static select for action ACTION_MERGE on entity entity.CardField: select cardfield0_.card_id as card2_1_0_, cardfield0_.key_id as key1_1_0_ from CardField cardfield0_ where cardfield0_.card_id=? and cardfield0_.key_id=?
Static select for action ACTION_REFRESH on entity entity.CardField: select cardfield0_.card_id as card2_1_0_, cardfield0_.key_id as key1_1_0_ from CardField cardfield0_ where cardfield0_.card_id=? and cardfield0_.key_id=?
Static select for entity entity.Card: select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
Static select for entity entity.Card: select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
Static select for entity entity.Card: select card0_.id as id0_0_ from Card card0_ where card0_.id=?
Static select for entity entity.Card: select card0_.id as id0_0_ from Card card0_ where card0_.id=?
Static select for entity entity.Card: select card0_.id as id0_0_ from Card card0_ where card0_.id=?
Static select for action ACTION_MERGE on entity entity.Card: select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
Static select for action ACTION_REFRESH on entity entity.Card: select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
Static select for entity entity.Key: select key0_.id as id2_0_ from Key key0_ where key0_.id=?
Static select for entity entity.Key: select key0_.id as id2_0_ from Key key0_ where key0_.id=?
Static select for entity entity.Key: select key0_.id as id2_0_ from Key key0_ where key0_.id=?
Static select for entity entity.Key: select key0_.id as id2_0_ from Key key0_ where key0_.id=?
Static select for entity entity.Key: select key0_.id as id2_0_ from Key key0_ where key0_.id=?
Static select for action ACTION_MERGE on entity entity.Key: select key0_.id as id2_0_ from Key key0_ where key0_.id=?
Static select for action ACTION_REFRESH on entity entity.Key: select key0_.id as id2_0_ from Key key0_ where key0_.id=?
Static select for one-to-many entity.Card.fields: select fields0_.card_id as card2_1_, fields0_.key_id as key1_1_, fields0_.card_id as card2_1_0_, fields0_.key_id as key1_1_0_ from CardField fields0_ where fields0_.card_id=?
When I call the findCard method in my EJB, the entity manager keeps looping through the select process several hundred times, and then dies from a stack overflow.
Here's a sample of looping:
DEBUG 17-09 21:17:18,328 (Log4JLogger.java:debug:84) -select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
DEBUG 17-09 21:17:18,343 (Log4JLogger.java:debug:84) -about to open ResultSet (open ResultSets: 0, globally: 0)
DEBUG 17-09 21:17:18,343 (Log4JLogger.java:debug:84) -loading entity: [entity.Card#cardId]
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -about to open PreparedStatement (open PreparedStatements: 1, globally: 1)
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -about to open ResultSet (open ResultSets: 1, globally: 1)
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -loading entity: [entity.Card#cardId]
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -about to open PreparedStatement (open PreparedStatements: 2, globally: 2)
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -about to open ResultSet (open ResultSets: 2, globally: 2)
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -loading entity: [entity.Card#cardId]
DEBUG 17-09 21:17:18,359 (Log4JLogger.java:debug:84) -about to open PreparedStatement (open PreparedStatements: 3, globally: 3)
DEBUG 17-09 21:17:18,375 (Log4JLogger.java:debug:84) -select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
DEBUG 17-09 21:17:18,375 (Log4JLogger.java:debug:84) -about to open ResultSet (open ResultSets: 3, globally: 3)
DEBUG 17-09 21:17:18,375 (Log4JLogger.java:debug:84) -loading entity: [entity.Card#cardId]
DEBUG 17-09 21:17:18,375 (Log4JLogger.java:debug:84) -about to open PreparedStatement (open PreparedStatements: 4, globally: 4)
DEBUG 17-09 21:17:18,375 (Log4JLogger.java:debug:84) -select card0_.id as id0_1_, fields1_.card_id as card2_3_, fields1_.key_id as key1_3_, fields1_.card_id as card2_1_0_, fields1_.key_id as key1_1_0_ from Card card0_ left outer join CardField fields1_ on card0_.id=fields1_.card_id where card0_.id=?
DEBUG 17-09 21:17:18,375 (Log4JLogger.java:debug:84) -about to open ResultSet (open ResultSets: 4, globally: 4)
DEBUG 17-09 21:17:18,375 (Log4JLogger.java:debug:84) -loading entity: [entity.Card#cardId]
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14 years, 6 months
[Hibernate-JIRA] Created: (ANN-756) @Column annotation ignored when placed on entity's @Id property
by sagi mann (JIRA)
@Column annotation ignored when placed on entity's @Id property
---------------------------------------------------------------
Key: ANN-756
URL: http://opensource.atlassian.com/projects/hibernate/browse/ANN-756
Project: Hibernate Annotations
Issue Type: Bug
Affects Versions: 3.3.1.GA
Environment: hib core 3.2.6, my sql 5
Reporter: sagi mann
Hibernate docs specify that when using a compound key class, a Hibernate optional feature is to place @Column annotations within the key class. The observed behavior is that Hibernate ignores @Column if placed ANYWHERE ELSE, for example, on the entity's ID properties. In other words, the standard JPA way of annotating ID fields is not working under Hibernate, and the "optional" feature is mandatory.
Example how to reproduce (see comments inside the code regarding the inconsistency above). Accessors were omitted for clarity:
// the identity class
@Entity
public class SecurityIdentity implements Serializable {
public SecurityIdentity() {}
@Id
@Column(name="IDENTITY_ID")
@GeneratedValue
public Long getId() ...
@Column(name="IDENTITY_NAME")
public String getName() ...
@Override public boolean equals(Object o) ...
@Override public int hashCode() ...
}
// the domain class
@Entity
public class SecurityDomain implements Serializable {
public SecurityDomain() {}
@Id
@Column(name="DOMAIN_ID")
@GeneratedValue
public Long getId() ...
@Column(name="DOMAIN_NAME")
public String getName() ...
@Override public boolean equals(Object o) ...
@Override public int hashCode() ...
}
// the domain-identity mapping class
@Entity
@IdClass(pu1.DomainIdentityPK.class)
public class DomainIdentity implements Serializable {
public DomainIdentity() {}
@Id
public Long getDomainId() ...
@Id
public String getUserAlias() ...
@ManyToOne
@JoinColumn(name="IDENTITY_ID")
public SecurityIdentity getSecurityIdentity() ...
@ManyToOne
@JoinColumn(name="DOMAIN_ID", insertable=false, updatable=false)
public SecurityDomain getSecurityDomain() { return securityDomain; }
public void setSecurityDomain(SecurityDomain securityDomain) {
this.securityDomain = securityDomain;
this.domainId = (securityDomain != null ? securityDomain.getId() : null);
}
private SecurityDomain securityDomain;
}
// the map key class
public class DomainIdentityPK implements Serializable {
public DomainIdentityPK() {
}
/********* @Column inconsistency - cannot be placed inside the entity - only inside the PK class *******/
@Column(name="DOMAIN_ID")
public Long getDomainId() ...
[b]@Column(name="ALIAS")[/b]
public String getUserAlias() ...
public boolean equals(Object o) ...
public int hashCode() ...
}
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14 years, 6 months
[Hibernate-JIRA] Created: (HHH-2608) allow delete-orphan cascade style in one-to-one mapping
by Joe Kelly (JIRA)
allow delete-orphan cascade style in one-to-one mapping
-------------------------------------------------------
Key: HHH-2608
URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2608
Project: Hibernate3
Issue Type: New Feature
Components: core
Affects Versions: 3.2.4
Environment: 3.2.4, DB2 v8
Reporter: Joe Kelly
Please allow the cascade-style "delete-orphan" for one-to-one relationships. When I try to use that cascade style, I get the exception "org.hibernate.MappingException: single-valued associations do not support orphan delete".
I realize that the reference manual says "Note that single valued associations (many-to-one and one-to-one associations) do not support orphan delete." But why? I can think of many cases where you WOULD want parent-child semantics in a one-to-one relationship.
For example, I have encountered some legacy databases where an entity has all of its fields stored in one table EXCEPT for an optional large field (e.g. a blob field) that is stored in another table, presumably for some performance or storage optimization reason. In this case the two tables are joined with a one-to-one relationship, using a shared primary key. Here are some hypothetical tables, classes and mappings that illustrate this example:
company
(
company_id (PK)
name
)
company_extra
(
company_extra_id (PK), (FK referencing company.company_id)
some_extra_info
)
class Company
{
int companyId;
String name;
CompanyExtra companyExtra;
}
class CompanyExtra
{
int companyExtraId;
String someExtraInfo;
Company company;
}
<class name="Company" table="company">
<id name="companyId" column="company_id">
<generator class="sequence">
<param name="sequence">COMPANY_SEQ</param>
</generator>
</id>
<property name="name" column="name" />
<one-to-one name="companyExtra" class="CompanyExtra" cascade="all, delete-orphan" />
</class>
<class name="CompanyExtra" table="company_extra">
<id name="companyExtraId" column="company_extra_id" unsaved-value="null">
<generator class="foreign">
<param name="property">company</param>
</generator>
</id>
<property name="someExtraInfo" column="some_extra_info" />
<one-to-one name="company" class="Company" constrained="true" />
</class>
For the purposes of this example, CompanyExtra is a child of Company and belongs to one and only one instance of Company. It cannot be shared between Company instances and it cannot be an orphan (i.e. it cannot exist without a parent Company). Also, CompanyExtra is optional so you can have a Company without any associated CompanyExtra during Company's lifecycle.
To me, it seems natural and logical that if you set Company.companyExtra to null, and save Company, Hibernate should automatically delete the associated record in the company_extra table if the delete-orphan cascade style is configured (which, of course, it not currently allowed). This is what I want to do when editing an existing Company instance:
aCompany = session.load(...);
aCompany.setCompanyExtra(null);
aCompany.setName("some new name");
session.save(aCompany); // automatically deletes company_extra record
For now, I think the workaround is to explicitly delete the CompanyExtra instance in Java code but that just doesn't seem natural to me and it isn't transparent. I do NOT want to do this:
aCompany = session.load(...);
companyExtra = aCompany.getCompanyExtra(); // ***extra, unnatural method call
aCompany.setCompanyExtra(null);
aCompany.setName("some new name");
session.save(aCompany);
session.delete(companyExtra); // ***another extra, unnatural method call
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14 years, 6 months