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Markus.Borbely
 Post subject: Expected behaviour for PersistentSet?
PostPosted: Mon Jan 23, 2006 8:35 am 
Newbie

Joined: Mon Jan 23, 2006 8:17 am
Posts: 3
Need help with Hibernate? Read this first:
http://www.hibernate.org/ForumMailingli ... AskForHelp

Hibernate version:
3.1

Mapping documents:
Code:
    <class name="stricent.abc.datastorage.orm.Project" table="project">

        <id name="id" type="long" unsaved-value="0">
            <column name="project_id" sql-type="integer" not-null="true"/>
            <generator class="native"/>
        </id>

        <property name="projectName" not-null="true" unique="true" />

        <set name="items" table="project_items" lazy="false" inverse="false" cascade="all">
            <key column="project_id" />
            <!--<many-to-many column="item_id" unique="true" class="stricent.abc.datastorage.orm.Item"/>-->
            <one-to-many class="stricent.abc.datastorage.orm.Item"/>
        </set>

    </class>

    <class name="stricent.abc.datastorage.orm.Item" table="item">

        <id name="id" type="long" unsaved-value="0">
            <column name="item_id" sql-type="integer" not-null="true"/>
            <generator class="native"/>
        </id>

        <property name="createFolder"/>
        <property name="itemStatus" not-null="true"/>
        <property name="studyStatus" not-null="true"/>
        <property name="urgent"/>

        <joined-subclass name="stricent.abc.datastorage.orm.ScientificAdviceItem" extends="stricent.abc.datastorage.orm.Item" table="item_sci_adv" >
            <key column="item_id"/>
            <property name="type" not-null="true" />
            <property name="meetingDate"/>
            <property name="registrationDeadline"/>
            <property name="informationDeadline"/>
            <property name="itemNumber"/>
        </joined-subclass>

etc etc

    </class>


Code between sessionFactory.openSession() and session.close():
Code:
        M1Item clone = m11.clone();
        log.debug(clone + " " + m11 + " " + clone.hashCode() + " " + m11.hashCode() + " " + clone.equals(m11)); //this states that the two object are equals
        log.debug("Contains: " + proj.getItems().contains(m11)); //returns false
        for (Item item : proj.getItems()) {
            if (item.equals(m11)) {
                log.debug("Custom contains: returned true"); //this row does print
            }
        }

        boolean removed = ((Set) proj.getItems()).remove(m11);
        log.debug("Removed: " + removed); //nothing is removed
        log.debug("Proj items size: " + proj.getItems().size()); //still same size
        dataStorage.updateObject(proj); //going fine
        dataStorage.deleteObject(m11); //throws exception


Full stack trace of any exception that occurs:

Code:
org.hibernate.ObjectDeletedException: deleted object would be re-saved by cascade (remove deleted object from associations): [stricent.abc.datastorage.orm.M1Item#22975]
   at org.hibernate.impl.SessionImpl.forceFlush(SessionImpl.java:1021)
   at org.hibernate.event.def.DefaultSaveOrUpdateEventListener.entityIsTransient(DefaultSaveOrUpdateEventListener.java:168)
   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:529)
   at org.hibernate.impl.SessionImpl.saveOrUpdate(SessionImpl.java:521)
   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.cascadeCollectionElements(Cascade.java:290)
   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.AbstractFlushingEventListener.cascadeOnFlush(AbstractFlushingEventListener.java:130)
   at org.hibernate.event.def.AbstractFlushingEventListener.prepareEntityFlushes(AbstractFlushingEventListener.java:121)
   at org.hibernate.event.def.AbstractFlushingEventListener.flushEverythingToExecutions(AbstractFlushingEventListener.java:65)
   at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:26)
   at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1007)
   at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:354)
   at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
   at stricent.abc.datastorage.DataStorage.commitTransaction(DataStorage.java:149)
   at stricent.abc.datastorage.DataStorage.deleteObject(DataStorage.java:245)
   at stricent.abc.datastorage._TestDataStorage.testDelete(_TestDataStorage.java:239)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at junit.framework.TestCase.runTest(TestCase.java:154)
   at junit.framework.TestCase.runBare(TestCase.java:127)
   at junit.framework.TestResult$1.protect(TestResult.java:106)
   at junit.framework.TestResult.runProtected(TestResult.java:124)
   at junit.framework.TestResult.run(TestResult.java:109)
   at junit.framework.TestCase.run(TestCase.java:118)
   at junit.framework.TestSuite.runTest(TestSuite.java:208)
   at junit.framework.TestSuite.run(TestSuite.java:203)
   at junit.textui.TestRunner.doRun(TestRunner.java:116)
   at com.intellij.rt.execution.junit2.IdeaJUnitAgent.doRun(IdeaJUnitAgent.java:57)
   at junit.textui.TestRunner.start(TestRunner.java:172)
   at com.intellij.rt.execution.junit.TextTestRunner2.startRunnerWithArgs(TextTestRunner2.java:23)
   at com.intellij.rt.execution.junit2.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:97)
   at com.intellij.rt.execution.junit2.JUnitStarter.main(JUnitStarter.java:31)
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:585)
   at com.intellij.rt.execution.application.AppMain.main(AppMain.java:78)


Name and version of the database you are using:
Oracle 9i


The codes says it. I have a set. It says it does not contain an object, but it does. I try to remove it but it is not removed. I update the object with the set (this goes fine but nothing has changed). I try to delete the object that I tried to remove.... errr...

What am I doing that I was not supposed to? To me, it seems that PersistentSet does not implement Set correctly but I guess it just me. :-)
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Markus.Borbely
 Post subject:
PostPosted: Tue Jan 24, 2006 4:06 am 
Newbie

Joined: Mon Jan 23, 2006 8:17 am
Posts: 3
anyone?
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orome
 Post subject:
PostPosted: Tue Jan 24, 2006 10:37 am 
Newbie

Joined: Wed Dec 14, 2005 6:50 am
Posts: 17
HI,

I'm not sure my solution is for your problem, but try the following:

in mapping for project change:

<set name="items" table="project_items" lazy="false" inverse="true" cascade="all,delete-orphan">

also make very sure ur equals and hashcodes work correct.
Notice: Do not use the primary key for equality, not in child and not in parent too.

Hope this helps, so u can rate ;-)
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Markus.Borbely
 Post subject:
PostPosted: Wed Jan 25, 2006 4:23 am 
Newbie

Joined: Mon Jan 23, 2006 8:17 am
Posts: 3
cheers mate, found an primary key in one equals *blush*
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orome
 Post subject:
PostPosted: Wed Jan 25, 2006 4:34 am 
Newbie

Joined: Wed Dec 14, 2005 6:50 am
Posts: 17
i had searched for 2 days to get it work, so i'm happy you haven't to do the same :-)
Thanks for the rate!
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