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Fireblaze
 Post subject: Problems with mapping/saving Parent-Child-GrandChild.
PostPosted: Thu Mar 15, 2007 9:09 am 
Newbie

Joined: Fri Mar 09, 2007 12:41 pm
Posts: 3
Code:
@MappedSuperclass
public abstract class AbstractDomainEntry implements DomainEntry {
   
    @Id @GeneratedValue
    @Column(name = "ID")
    protected int id = 0;
   ....
}

@Entity
@Table(name = "timeplan")
public class TimePlan extends AbstractDomainEntry {
   
    @ManyToMany(fetch=FetchType.EAGER, cascade={CascadeType.ALL})
    @JoinTable(name="timeplan_resourceplan")
    @IndexColumn(name = "position")
    @org.hibernate.annotations.Cascade(org.hibernate.annotations.CascadeType.DELETE_ORPHAN)
    private List<ResourcePlan> plans = new LinkedList<ResourcePlan>();
   
    @ManyToMany(fetch=FetchType.EAGER)
    @JoinTable(name="timeplan_name")
    @IndexColumn(name = "position")
    private List<Category> names = new LinkedList<Category>();
   
    @ManyToMany(fetch=FetchType.EAGER)
    @JoinTable(name="timeplan_period")
    @IndexColumn(name = "position")
    private List<Resource> periods = new LinkedList<Resource>();
   
    @ManyToMany(fetch=FetchType.EAGER)
    @JoinTable(name="timeplan_class")
    @IndexColumn(name = "position")
    private List<Resource> clazzes = new LinkedList<Resource>();
   
    @ManyToMany(fetch=FetchType.EAGER)
    @JoinTable(name="timeplan_exportedperiod")
    @IndexColumn(name = "position")
    private List<Resource> exportedPeriods = new LinkedList<Resource>();
}

@Entity
@Table(name = "resourceplan")
public class ResourcePlan extends AbstractDomainEntry {
    @ManyToOne
    @JoinTable(name="resourceplan_parent")
    private ResourcePlan parent;
   
    @ManyToOne
    private Resource resource;
   
    @Column(name="timeentry")
    private TimeEntry timeEntry = new TimeEntry();
   
    @OneToMany(fetch=FetchType.EAGER, cascade={CascadeType.ALL})
    @JoinTable(name="resourceplan_plan")
    @IndexColumn(name = "position")
    private List<ResourcePlan> plans = new LinkedList<ResourcePlan>();
}



Code:
Fel core.ResourcePlan[id = 29] 2007-1 45 ändring
enterprise.exceptions.AppRuntimeException: Fel core.ResourcePlan[id = 29] 2007-1 45 ändring
   at view.ReportTimeEntry.save(ReportTimeEntry.java:57)
   at view.ReportTimeEntry.setEntrylValue(ReportTimeEntry.java:41)
   at enterprise.report.ReportElement.setValue(ReportElement.java:135)
   at enterprise.report.ReportUpdater.update(ReportUpdater.java:53)
   at enterprise.report.ReportUpdater.update(ReportUpdater.java:25)
   at enterprise.report.Report.update(Report.java:344)
   at servlet.SpreadSheetServlet.updateSheet(SpreadSheetServlet.java:61)
   at servlet.SpreadSheetServlet.processRequest(SpreadSheetServlet.java:40)
   at servlet.ResourceServlet.doPost(ResourceServlet.java:69)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at filter.LoginFilter.doFilter(LoginFilter.java:49)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at filter.DataAccessFilter.doFilter(DataAccessFilter.java:31)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
   at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
   at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
   at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
   at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
   at java.lang.Thread.run(Unknown Source)
Caused by: enterprise.exceptions.AppRuntimeException: Fel i transaktion 14 [Duplicate entry '29' for key 1]
   at core.DataAccess.commit(DataAccess.java:150)
   at core.DataAccess.save(DataAccess.java:89)
   at core.DataAccess.save(DataAccess.java:81)
   at view.ReportTimeEntry.save(ReportTimeEntry.java:54)
   ... 30 more
Caused by: javax.persistence.RollbackException: Error while commiting the transaction
   at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:71)
   at core.DataAccess.commit(DataAccess.java:143)
   ... 33 more
Caused by: org.hibernate.exception.ConstraintViolationException: could not insert: [core.ResourcePlan]
   at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:71)
   at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
   at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2263)
   at org.hibernate.persister.entity.AbstractEntityPersister.updateOrInsert(AbstractEntityPersister.java:2310)
   at org.hibernate.persister.entity.AbstractEntityPersister.update(AbstractEntityPersister.java:2603)
   at org.hibernate.action.EntityUpdateAction.execute(EntityUpdateAction.java:92)
   at org.hibernate.engine.ActionQueue.execute(ActionQueue.java:248)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:232)
   at org.hibernate.engine.ActionQueue.executeActions(ActionQueue.java:140)
   at org.hibernate.event.def.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:298)
   at org.hibernate.event.def.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:27)
   at org.hibernate.impl.SessionImpl.flush(SessionImpl.java:1000)
   at org.hibernate.impl.SessionImpl.managedFlush(SessionImpl.java:338)
   at org.hibernate.transaction.JDBCTransaction.commit(JDBCTransaction.java:106)
   at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:54)
   ... 34 more
Caused by: java.sql.SQLException: Duplicate entry '29' for key 1
   at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2928)
   at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:1571)
   at com.mysql.jdbc.ServerPreparedStatement.serverExecute(ServerPreparedStatement.java:1124)
   at com.mysql.jdbc.ServerPreparedStatement.executeInternal(ServerPreparedStatement.java:676)
   at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1166)
   at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1082)
   at com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:1067)
   at com.mchange.v2.c3p0.impl.NewProxyPreparedStatement.executeUpdate(NewProxyPreparedStatement.java:105)
   at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2246)
   ... 46 more



When loading a TimePlan that has a ResourcePlans with child Resourceplans. And then saving the child Resourceplan using:

core.DataAccess.save(DataAccess.java:89) just does: entityManager.merge(resourcePlan);

there is a Exception thrown: Saying [Duplicate entry '29' for key 1]

Im wondering whats wrong with my mapping that cause this problem.

Maybe someone can point me to a page that has solved the bidirectional mapping of Parent<-->Children<-->GrandChilden problem.

(I know I'm using EAGER-loading of all objects cause all objects are displayed to the user directly after loading them in a nice big graph.)

Hibernate does an insert instead of update on resourceplan_parent...

Hibernate:
update
resourceplan
set
resource_ID=?,
timeentry=?
where
ID=?

Hibernate:
insert
into
resourceplan_parent
(parent_ID, ID)
values
(?, ?)
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Fireblaze
 Post subject:
PostPosted: Thu Mar 22, 2007 6:40 am 
Newbie

Joined: Fri Mar 09, 2007 12:41 pm
Posts: 3
Found and fixed the problem after rereading "Java Persistence
with Hibernate"-book.
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