i'm using TreeCache as the 2nd level cache with these 3 beans, which form a
one-many-one relation:
Car
|
| @Entity
| @Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
|
| @Entity(optimisticLock = OptimisticLockType.VERSION)
| @Table(name = "CAR")
|
| public class Car extends BaseEntity implements java.io.Serializable {
|
| private List<FaxToCar> faxes;
|
| .....
|
| @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy =
"car")
| @Cascade(value=CascadeType.DELETE_ORPHAN)
| @Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
| public List<FaxToCar> getFaxes() {
| return faxes;
| }
|
| ....
|
| @Transient
| public String getFaxNameList() {
| List<FaxToCar> l = getFaxes();
| String s = "";
| for (FaxToCar car2 : l) {
| if (s.length() > 0) {
| s += ", ";
| }
| s += car2.getFax().getName();
| }
| return s;
| }
| }
|
FaxToCar
|
| @Entity
| @Entity(optimisticLock = OptimisticLockType.VERSION)
| @Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
|
| @Table(name = "FAX2CAR")
|
| public class FaxToCar extends BaseEntity implements java.io.Serializable {
|
|
|
|
| protected int seq;
|
| private Car car;
|
| private Fax fax;
|
| @ManyToOne(fetch = FetchType.LAZY)
| @JoinColumn(name = "car_id")
| public Car getCar() {
| return car;
| }
|
|
| public void setCar(Car car) {
| this.car = car;
| }
|
| @ManyToOne(fetch = FetchType.LAZY)
| @JoinColumn(name = "fax_id")
| public Fax getFax() {
| return fax;
| }
|
|
| public void setFax(Fax fax) {
| this.fax = fax;
| }
|
|
| public int getSeq() {
| return seq;
| }
|
|
| public void setSeq(int seq) {
| this.seq = seq;
| }
|
| }
|
|
|
Fax
| @Entity
| @Entity(optimisticLock = OptimisticLockType.VERSION)
| @Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
|
| @Table(name = "FAX")
|
| public class Fax extends BaseEntity implements java.io.Serializable {
|
| private List<FaxToCar> cars;
|
| ...
|
| @OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy =
"fax")
| @Cascade(value=CascadeType.DELETE_ORPHAN)
| @Cache(usage = CacheConcurrencyStrategy.TRANSACTIONAL)
| @OrderBy("seq")
| public List<FaxToCar> getCars() {
| return cars;
| }
| ...
|
|
After i deleted a "Fax", everything works as expected, unless i acces a "Car"
which was previously cached, becasue it looks like its cached collection of
"FaxToCar" references a now not longer instance of "Fax2Car", which was deleted
because of "CascadeType.DELETE_ORPHAN".
The stacktrace looks like this:
anonymous wrote : 10:54:22,171 INFO [STDOUT] Hibernate: select car0_.id as
id12_, car0_.version as version12_, car0_.createdBy as createdBy12_,
car0_.updatedBy as updatedBy12_,
| car0_.createdTime as createdT5_12_, car0_.updatedTime as updatedT6_12_,
car0_.gf as gf12_, car0_.typ as typ12_, car0_.hersteller as hersteller12_,
car0_.lack a
| lack12_, car0_.lack_code as lack11_12_, car0_.polster as polster12_,
car0_.polster_code as polster13_12_, car0_.ez as ez12_, car0_.angebotspreis as
angebot15_
| 2_, car0_.vorbesitzer as vorbesi16_12_, car0_.km as km12_, car0_.neupreis
as neupreis12_, car0_.behobenerschaden as behoben19_12_,
car0_.differenzbesteuert as
| iffere20_12_, car0_.verkauft as verkauft12_, car0_.freitext as freitext12_
from CAR car0_ where 1=1 and (car0_.gf like ?)
| 10:54:22,452 INFO [STDOUT] Hibernate: select faxtocar0_.id as id18_0_,
faxtocar0_.version as version18_0_, faxtocar0_.createdBy as createdBy18_0_,
faxtocar0_.
| pdatedBy as updatedBy18_0_, faxtocar0_.createdTime as createdT5_18_0_,
faxtocar0_.updatedTime as updatedT6_18_0_, faxtocar0_.car_id as car8_18_0_,
faxtocar0_.f
| x_id as fax9_18_0_, faxtocar0_.seq as seq18_0_ from FAX2CAR faxtocar0_
where faxtocar0_.id=?
| 10:54:22,452 INFO [DefaultLoadEventListener] Error performing load command
| org.hibernate.ObjectNotFoundException: No row with the given identifier
exists: [de.foobar.hfax.entity.fax.FaxToCar#27908]
| at
org.hibernate.ObjectNotFoundException.throwIfNull(ObjectNotFoundException.java:27)
| at
org.hibernate.event.def.DefaultLoadEventListener.load(DefaultLoadEventListener.java:128)
| at
org.hibernate.event.def.DefaultLoadEventListener.proxyOrLoad(DefaultLoadEventListener.java:177)
| at
org.hibernate.event.def.DefaultLoadEventListener.onLoad(DefaultLoadEventListener.java:87)
| at org.hibernate.impl.SessionImpl.fireLoad(SessionImpl.java:891)
| at org.hibernate.impl.SessionImpl.internalLoad(SessionImpl.java:859)
| at
org.hibernate.type.EntityType.resolveIdentifier(EntityType.java:266)
| at org.hibernate.type.ManyToOneType.assemble(ManyToOneType.java:177)
| at
org.hibernate.collection.PersistentBag.initializeFromCache(PersistentBag.java:140)
| at
org.hibernate.cache.entry.CollectionCacheEntry.assemble(CollectionCacheEntry.java:35)
| at
org.hibernate.event.def.DefaultInitializeCollectionEventListener.initializeCollectionFromCache(DefaultInitializeCollectionEventListener.java:130)
| at
org.hibernate.event.def.DefaultInitializeCollectionEventListener.onInitializeCollection(DefaultInitializeCollectionEventListener.java:48)
| at
org.hibernate.impl.SessionImpl.initializeCollection(SessionImpl.java:1695)
| at
org.hibernate.collection.AbstractPersistentCollection.initialize(AbstractPersistentCollection.java:344)
| at
org.hibernate.collection.AbstractPersistentCollection.read(AbstractPersistentCollection.java:86)
| at
org.hibernate.collection.PersistentBag.iterator(PersistentBag.java:246)
| at de.foobar.hfax.entity.core.Car.getFaxNameList(Car.java:269)
| .....
As a workaround, i'm manually evicting the offending collection out of the
cache:
public void removeFax(Fax fax) {
| manager.remove(fax);
| manager.flush();
| Session hs = ((HibernateSession)manager).getHibernateSession();
|
hs.getSessionFactory().evictCollection("de.foobar.hfax.entity.core.Car.faxes");
| }
Question: Bug or Feature ?
TIA
Marco
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