I don't understand what these lines are doing. Are you reloading whatever
is already stored in your modelObject.kunde and setting it again to your
model object? Why?
On Thu, May 8, 2014 at 7:50 AM, Piratenvisier <hansheinrichbr...@yahoo.de>wrote:
> If I include the folowing lines :
>
> if(NachweiseForm.this.getModelObject().getKunde()!=null) {
> Kunde kunde = kundeManager.get(NachweiseForm.this.
> getModelObject().getKunde().getId());
> NachweiseForm.this.getModelObject().setKunde(kunde);
> kunde.addNachweis(NachweiseForm.this.getModelObject());
> System.err.println("Kunde");
> }
>
> before the save
>
> everything is fine
>
> But I hoped to avoid such lines by AbstractEntityModel.
>
> My idea was to implant Kunde through the form.
>
> But how could you do it only by a Label.
>
> Am 05.05.2014 20:40, schrieb mscoon:
>
>> Actually what I said below is wrong because this line is after the line
>>
>> that throws the exception. But my explanation still holds. Something
>> before
>> the line that is throwing the exception is causing an object with a
>> reference to a new Nachweise
>> to be saved while the Nachweise is still unsaved. You need to search at
>> what is happening before the line with the exception, maybe even before
>> the
>> page is created.
>>
>>
>>
>> Now, a wild guess (I may well be wrong) is that the following line:
>>> nachweiseform.getModelObject().getKunde().addNachweis(nachwe
>>> iseform.getModelObject());
>>>
>>> may be causing the problem if hibernate tries to save kunde with
>>> nachweiseform.getModelObject()
>>> which is a new object with a null id.
>>>
>>> You may try to move this line to saveNachweise().
>>>
>>>
>>> On Mon, May 5, 2014 at 2:54 PM, Yahoo <hansheinrichbr...@yahoo.de>
>>> wrote:
>>>
>>> Am 05.05.2014 11:05, schrieb mscoon:
>>>>
>>>> In a previous message you sent the following snippets:
>>>>
>>>>> //@XmlTransient
>>>>> @ManyToOne(cascade = CascadeType.MERGE,fetch=FetchType.LAZY)
>>>>> @JoinColumn(name="NachKundNr",insertable=false, updatable=false)
>>>>> public Kunde getKunde(){
>>>>> return this.kunde;
>>>>> }
>>>>>
>>>>> recursive Part for Kunde
>>>>>
>>>>>
>>>>> @XmlTransient
>>>>> @OneToMany(cascade={CascadeType.MERGE},fetch=FetchType.LAZY)
>>>>> @JoinColumn(name="NachKundNr",insertable=false, updatable=false )
>>>>>
>>>>> when I remove this I get the error :
>>>> org.hibernate.TransientObjectException: object references an unsaved
>>>> transient instance - save the transient instance before flushing:
>>>> braunimmobilien.model.Nachweise
>>>> at org.hibernate.engine.internal.ForeignKeys.
>>>> getEntityIdentifierIfNotUnsaved(ForeignKeys.java:249)
>>>> at org.hibernate.type.EntityType.getIdentifier(EntityType.java:
>>>> 459)
>>>> at org.hibernate.type.ManyToOneType.nullSafeSet(
>>>> ManyToOneType.java:132)
>>>> at org.hibernate.persister.collection.
>>>> AbstractCollectionPersister.
>>>> writeElement(AbstractCollectionPersister.java:867)
>>>> at org.hibernate.persister.collection.
>>>> AbstractCollectionPersister.
>>>> insertRows(AbstractCollectionPersister.java:1475)
>>>> at org.hibernate.action.internal.CollectionUpdateAction.execute(
>>>> CollectionUpdateAction.java:86)
>>>> at org.hibernate.engine.spi.ActionQueue.execute(
>>>> ActionQueue.java:362)
>>>> at org.hibernate.engine.spi.ActionQueue.executeActions(
>>>> ActionQueue.java:354)
>>>> at org.hibernate.engine.spi.ActionQueue.executeActions(
>>>> ActionQueue.java:278)
>>>> at org.hibernate.event.internal.AbstractFlushingEventListener.
>>>> performExecutions(AbstractFlushingEventListener.java:326)
>>>> at org.hibernate.event.internal.DefaultFlushEventListener.
>>>> onFlush(
>>>> DefaultFlushEventListener.java:52)
>>>> at org.hibernate.internal.SessionImpl.flush(SessionImpl.
>>>> java:1213)
>>>> at org.hibernate.internal.SessionImpl.managedFlush(
>>>> SessionImpl.java:402)
>>>> at org.hibernate.engine.transaction.internal.jdbc.
>>>> JdbcTransaction.
>>>> beforeTransactionCommit(JdbcTransaction.java:101)
>>>> at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.
>>>> commit(AbstractTransactionImpl.java:175)
>>>> at org.springframework.orm.hibernate4.
>>>> HibernateTransactionManager.
>>>> doCommit(HibernateTransactionManager.java:554)
>>>> at org.springframework.transaction.support.
>>>> AbstractPlatformTransactionManager.processCommit(
>>>> AbstractPlatformTransactionManager.java:755)
>>>> at org.springframework.transaction.support.
>>>> AbstractPlatformTransactionManager.commit(
>>>> AbstractPlatformTransactionMan
>>>> ager.java:724)
>>>> at org.springframework.transaction.interceptor.
>>>> TransactionAspectSupport.commitTransactionAfterReturnin
>>>> g(TransactionAspectSupport.java:475)
>>>> at org.springframework.transaction.interceptor.
>>>> TransactionAspectSupport.invokeWithinTransaction(
>>>> TransactionAspectSupport.java:270)
>>>> at org.springframework.transaction.interceptor.
>>>> TransactionInterceptor.invoke(TransactionInterceptor.java:94)
>>>> at org.springframework.aop.framework.ReflectiveMethodInvocation.
>>>> proceed(ReflectiveMethodInvocation.java:172)
>>>> at org.springframework.aop.interceptor.
>>>> ExposeInvocationInterceptor.
>>>> invoke(ExposeInvocationInterceptor.java:91)
>>>> at org.springframework.aop.framework.ReflectiveMethodInvocation.
>>>> proceed(ReflectiveMethodInvocation.java:172)
>>>> at org.springframework.aop.framework.JdkDynamicAopProxy.
>>>> invoke(JdkDynamicAopProxy.java:204)
>>>> at com.sun.proxy.$Proxy112.get(Unknown Source)
>>>> at java.lang.reflect.Method.invoke(Method.java:606)
>>>> at org.apache.wicket.proxy.LazyInitProxyFactory$
>>>> JdkHandler.invoke(
>>>> LazyInitProxyFactory.java:435)
>>>> at com.sun.proxy.$Proxy94.get(Unknown Source)
>>>> at braunimmobilien.webapp.nachweis.NachweisPanel.<init>(
>>>> NachweisPanel.java:100)
>>>> at braunimmobilien.webapp.nachweis.NachweisPage.<init>(
>>>> NachweisPage.java:47)
>>>> at java.lang.reflect.Constructor.newInstance(Constructor.java:
>>>> 526)
>>>> at org.apache.wicket.session.DefaultPageFactory.newPage(
>>>> DefaultPageFactory.java:171)
>>>> at org.apache.wicket.session.DefaultPageFactory.newPage(
>>>> DefaultPageFactory.java:99)
>>>> at org.apache.wicket.DefaultMapperContext.newPageInstance(
>>>> DefaultMapperContext.java:137)
>>>> at org.apache.wicket.core.request.handler.PageProvider.
>>>> resolvePageInstance(PageProvider.java:268)
>>>> at org.apache.wicket.core.request.handler.PageProvider.
>>>> getPageInstance(PageProvider.java:166)
>>>> at org.apache.wicket.request.handler.render.PageRenderer.
>>>> getPage(PageRenderer.java:78)
>>>> at org.apache.wicket.request.handler.render.
>>>> WebPageRenderer.respond(
>>>> WebPageRenderer.java:271)
>>>> at org.apache.wicket.core.request.handler.
>>>> RenderPageRequestHandler.
>>>> respond(RenderPageRequestHandler.java:175)
>>>> at org.apache.wicket.request.cycle.RequestCycle$
>>>> HandlerExecutor.respond(RequestCycle.java:862)
>>>> at org.apache.wicket.request.RequestHandlerStack.execute(
>>>> RequestHandlerStack.java:64)
>>>> at org.apache.wicket.request.cycle.RequestCycle.execute(
>>>> RequestCycle.java:261)
>>>> at org.apache.wicket.request.cycle.RequestCycle.
>>>> processRequest(RequestCycle.java:218)
>>>> at org.apache.wicket.request.cycle.RequestCycle.
>>>> processRequestAndDetach(RequestCycle.java:289)
>>>> at org.apache.wicket.protocol.http.WicketFilter.
>>>> processRequestCycle(
>>>> WicketFilter.java:259)
>>>> at org.apache.wicket.protocol.http.WicketFilter.
>>>> processRequest(WicketFilter.java:201)
>>>> at org.apache.wicket.protocol.http.WicketFilter.doFilter(
>>>> WicketFilter.java:282)
>>>> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.
>>>> doFilter(ServletHandler.java:1338)
>>>> at com.opensymphony.sitemesh.webapp.SiteMeshFilter.
>>>> doFilter(SiteMeshFilter.java:65)
>>>> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.
>>>> doFilter(ServletHandler.java:1338)
>>>> at org.springframework.orm.hibernate4.support.
>>>> OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:
>>>> 152)
>>>> at org.springframework.web.filter.OncePerRequestFilter.
>>>> doFilter(OncePerRequestFilter.java:107)
>>>> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.
>>>> doFilter(ServletHandler.java:1338)
>>>> at braunimmobilien.webapp.MessageFilter.doFilter(
>>>> MessageFilter.java:32)
>>>> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.
>>>> doFilter(ServletHandler.java:1338)
>>>> at org.springframework.web.filter.CharacterEncodingFilter.
>>>> doFilterInternal(CharacterEncodingFilter.java:88)
>>>> at org.springframework.web.filter.OncePerRequestFilter.
>>>> doFilter(OncePerRequestFilter.java:107)
>>>> at org.eclipse.jetty.servlet.ServletHandler$CachedChain.
>>>> doFilter(ServletHandler.java:1338)
>>>> at org.eclipse.jetty.servlet.ServletHandler.doHandle(
>>>> ServletHandler.java:484)
>>>> at org.eclipse.jetty.server.handler.ScopedHandler.handle(
>>>> ScopedHandler.java:119)
>>>> at org.eclipse.jetty.security.SecurityHandler.handle(
>>>> SecurityHandler.java:524)
>>>> at org.eclipse.jetty.server.session.SessionHandler.
>>>> doHandle(SessionHandler.java:233)
>>>> at org.eclipse.jetty.server.handler.ContextHandler.
>>>> doHandle(ContextHandler.java:1065)
>>>> at org.eclipse.jetty.servlet.ServletHandler.doScope(
>>>> ServletHandler.java:413)
>>>> at org.eclipse.jetty.server.session.SessionHandler.
>>>> doScope(SessionHandler.java:192)
>>>> at org.eclipse.jetty.server.handler.ContextHandler.
>>>> doScope(ContextHandler.java:999)
>>>> at org.eclipse.jetty.server.handler.ScopedHandler.handle(
>>>> ScopedHandler.java:117)
>>>> at org.eclipse.jetty.server.handler.ContextHandlerCollection.
>>>> handle(
>>>> ContextHandlerCollection.java:250)
>>>> at org.eclipse.jetty.server.handler.HandlerCollection.
>>>> handle(HandlerCollection.java:149)
>>>> at org.eclipse.jetty.server.handler.HandlerWrapper.handle(
>>>> HandlerWrapper.java:111)
>>>> at org.eclipse.jetty.server.Server.handle(Server.java:350)
>>>> at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(
>>>> AbstractHttpConnection.java:454)
>>>> at org.eclipse.jetty.server.AbstractHttpConnection.
>>>> headerComplete(
>>>> AbstractHttpConnection.java:890)
>>>> at org.eclipse.jetty.server.AbstractHttpConnection$
>>>> RequestHandler.headerComplete(AbstractHttpConnection.java:944)
>>>> at org.eclipse.jetty.http.HttpParser.parseNext(
>>>> HttpParser.java:630)
>>>> at org.eclipse.jetty.http.HttpParser.parseAvailable(
>>>> HttpParser.java:230)
>>>> at org.eclipse.jetty.server.AsyncHttpConnection.handle(
>>>> AsyncHttpConnection.java:77)
>>>> at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(
>>>> SelectChannelEndPoint.java:606)
>>>> at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(
>>>> SelectChannelEndPoint.java:46)
>>>> at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(
>>>> QueuedThreadPool.java:603)
>>>> at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(
>>>> QueuedThreadPool.java:538)
>>>> at java.lang.Thread.run(Thread.java:744)
>>>>
>>>> at
>>>>
>>>>
>>>> final NachweiseForm nachweiseform=new NachweiseForm("form",model);
>>>> if (!(pars.getPosition("nachweisnr")>=0&&pars.get("
>>>> nachweisnr").toLong()>0))
>>>> {
>>>>
>>>> if (pars.getPosition("kundennr")>=0&&pars.get("kundennr").
>>>> toLong()>0)
>>>> {
>>>> here ===> Kunde kunde=kundeManager.get(new
>>>> Long(pars.get("kundennr").toString()));
>>>>
>>>> System.err.println("====================== set Kunde
>>>> reached");
>>>> nachweiseform.getModelObject().setKunde(kunde);
>>>> // nachweiseform.getModelObject().getKunde().addNachweis(
>>>> nachweiseform.getModelObject());
>>>> }
>>>>
>>>> }
>>>>
>>>>
>>>>
>>>> add(nachweiseform);
>>>>
>>>>
>>>>
>>>> public List<Nachweise> getNachweise() {
>>>>
>>>>> return nachweise;
>>>>> }
>>>>>
>>>>> It seems like both sides of the relationship are set as
>>>>> insertable=false,
>>>>> updatable = false. This would explain why kunde becomes null after
>>>>> saving,
>>>>> though it contradicts your statement that everything is saved ok in the
>>>>> db.
>>>>>
>>>>> Either way the AbstractEntityModel has nothing to do with how
>>>>> properties
>>>>> of
>>>>> the model object are stored in the db, so I still believe the problem
>>>>> is
>>>>> somewhere else in your code.
>>>>>
>>>>> Marios
>>>>>
>>>>>
>>>>> On Mon, May 5, 2014 at 11:26 AM, Yahoo <hansheinrichbr...@yahoo.de>
>>>>> wrote:
>>>>>
>>>>> First I have to tell you concerning the mapping I used the wrong word
>>>>>
>>>>>> the
>>>>>> dependencies in the mapping are not recursive bur circular.
>>>>>>
>>>>>> Am 04.05.2014 22:24, schrieb mscoon:
>>>>>>
>>>>>> I'm not sure I see something wrong in your code, but then again you
>>>>>> have
>>>>>>
>>>>>> omitted a lot of stuff which could be cruicial.
>>>>>>>
>>>>>>> Does nachweiseform have any components that show/update kunde?
>>>>>>>
>>>>>>> Label nachkundnr=new Label("kunde.id");
>>>>>>>
>>>>>> add(nachkundnr);
>>>>>>
>>>>>> What exactly do you mean by saying "after save it disappears"? Has
>>>>>> it
>>>>>> been
>>>>>>
>>>>>> stored correctly in the database or is it wrong there too?
>>>>>>>
>>>>>>> Everything is stored correctly in the Database only NachKundNr is
>>>>>>> NULL
>>>>>>>
>>>>>> Have you tried to create a minimal case where you are setting kunde
>>>>>> to an
>>>>>>
>>>>>> object without having any wicket forms?
>>>>>>>
>>>>>>> I have no problems with kunde in the TestCases
>>>>>>>
>>>>>> What is the value of kunde before saving to the db? If it is
>>>>>> correctly set
>>>>>>
>>>>>> then you likely have a problem with your mapping. If it's not
>>>>>>> correctly
>>>>>>> set
>>>>>>> then something is wrong with your form.
>>>>>>>
>>>>>>> The problem is only with new Kunde() because Kunde must be preset
>>>>>>> and
>>>>>>>
>>>>>> cannot be changed in the Form. Before using AbstractEntityModel I took
>>>>>> all
>>>>>> Ids of the MANYTOONE relationships in the model and loaded them from
>>>>>> the
>>>>>> Database and implanted them newly in Kunde before storing. My hope was
>>>>>> to
>>>>>> avoid this by using AbstractEntityModel.This works for all
>>>>>> Dependencies
>>>>>> which are set in the Form
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Sun, May 4, 2014 at 1:02 PM, Yahoo <hansheinrichbr...@yahoo.de>
>>>>>>
>>>>>>> wrote:
>>>>>>>
>>>>>>> I have a suspicion: I have defened all dependencies with jpa or
>>>>>>> hibernate
>>>>>>>
>>>>>>> annotation.
>>>>>>>> So I have also a lot of cicular dependencies, which sometimes make
>>>>>>>> problem.
>>>>>>>> I will give you 2 examples. one which is OK when I use
>>>>>>>> AbstractEntityModel
>>>>>>>> and on which makes problem, which is not set in the form through the
>>>>>>>> Model
>>>>>>>> but before.
>>>>>>>>
>>>>>>>> 1.
>>>>>>>>
>>>>>>>> the hibernatemodel:
>>>>>>>>
>>>>>>>> @IndexedEmbedded
>>>>>>>> @ManyToOne(cascade=CascadeType.MERGE,fetch = FetchType.LAZY)
>>>>>>>> @JoinColumn(name="NachAngNr",insertable=false, updatable=false)
>>>>>>>>
>>>>>>>> public Angebot getAngebot(){
>>>>>>>> return this.angebot;
>>>>>>>> }
>>>>>>>>
>>>>>>>> recursive part in Angebot:
>>>>>>>>
>>>>>>>> @XmlTransient
>>>>>>>> @OneToMany(cascade={CascadeType.ALL},fetch=FetchType.LAZY)
>>>>>>>> @JoinColumn(name="NachAngNr",nullable=false )
>>>>>>>> public List<Nachweise> getNachweise() {
>>>>>>>> return nachweise;
>>>>>>>> }
>>>>>>>>
>>>>>>>> Angebot is set by DropDownChoice in the form
>>>>>>>>
>>>>>>>> private IModel<List<? extends Angebot>> makeChoicesAngebote
>>>>>>>> =
>>>>>>>> new
>>>>>>>> AbstractReadOnlyModel<List<? extends Angebot>>()
>>>>>>>> {
>>>>>>>> @Override
>>>>>>>> public List<Angebot> getObject()
>>>>>>>> { List<Angebot> angebotelist=new
>>>>>>>> ArrayList<Angebot>();
>>>>>>>> Iterator angeboteiterator=
>>>>>>>> angebotManager.getAngebote().iterator();
>>>>>>>> while(angeboteiterator.hasNext()){
>>>>>>>> Angebot angebot=(Angebot)
>>>>>>>> angeboteiterator.next();
>>>>>>>> if(angebot.getAngstatus().getId().longValue()==1)
>>>>>>>> angebotelist.add(angebot);
>>>>>>>> }
>>>>>>>> return angebotelist;
>>>>>>>> }
>>>>>>>>
>>>>>>>> };
>>>>>>>> IChoiceRenderer<Angebot> angebotchoicerenderer=
>>>>>>>> new IChoiceRenderer<Angebot>() {
>>>>>>>>
>>>>>>>> public Object getDisplayValue(Angebot angebot)
>>>>>>>> {
>>>>>>>> return angebot.getId();
>>>>>>>> }
>>>>>>>>
>>>>>>>> public String getIdValue(Angebot angebot,int
>>>>>>>> index)
>>>>>>>> {
>>>>>>>> return angebot.getId();
>>>>>>>> }
>>>>>>>> };
>>>>>>>>
>>>>>>>> final DropDownChoice<Angebot> angebote = new
>>>>>>>> DropDownChoice<Angebot>("
>>>>>>>> angebot",
>>>>>>>> makeChoicesAngebote,angebotchoicerenderer);
>>>>>>>>
>>>>>>>>
>>>>>>>> The recursive part is treated in NachweiseManagerImpl :
>>>>>>>>
>>>>>>>> public Nachweise saveNachweise(Nachweise nachweise) throws
>>>>>>>> NachweiseExistsException {
>>>>>>>>
>>>>>>>> try {
>>>>>>>> if(nachweise.getId()==null){
>>>>>>>> System.err.println("xxxxxxxxxxxxxxxxxx Id=null");
>>>>>>>>
>>>>>>>> if(nachweise.getMitarbeiter()!=null) {
>>>>>>>> }
>>>>>>>> ======================= recursive Part for
>>>>>>>> Kunde
>>>>>>>> later =======================
>>>>>>>> /* if(nachweise.getKunde()!=null) {
>>>>>>>> System.err.println("xxxxxxxxxxxxxxxxxx
>>>>>>>> Kunde");
>>>>>>>> (nachweise.getKunde()).addNachweis(nachweise);
>>>>>>>> }*/
>>>>>>>> if(nachweise.getXtyp()!=null) {
>>>>>>>> }
>>>>>>>>
>>>>>>>> if(nachweise.getAngebot()!=null) {
>>>>>>>> nachweise.getAngebot().addNachweis(nachweise);
>>>>>>>> System.err.println("xxxxxxxxxxxxxxxxxx
>>>>>>>> Angebot");
>>>>>>>> }
>>>>>>>> ======================= recursive Part for Angebot
>>>>>>>> =======================
>>>>>>>> if(nachweise.getAngebot1()!=null) {
>>>>>>>> nachweise.getAngebot1().addNachweis1(nachweise);
>>>>>>>> }
>>>>>>>>
>>>>>>>> if(nachweise.getAngebot2()!=null) {
>>>>>>>> nachweise.getAngebot2().
>>>>>>>> addNachweis2(nachweise);
>>>>>>>> }
>>>>>>>>
>>>>>>>>
>>>>>>>> if(nachweise.getObjekt()!=null) {
>>>>>>>> nachweise.getObjekt().addNachweise(nachweise);
>>>>>>>> }
>>>>>>>>
>>>>>>>> if(nachweise.getPerson()!=null) {
>>>>>>>> nachweise.getPerson().addNachweis(nachweise);
>>>>>>>> }
>>>>>>>> }
>>>>>>>> return nachweiseDao.saveNachweise(nachweise);
>>>>>>>> } catch (DataIntegrityViolationException e) {
>>>>>>>> //e.printStackTrace();
>>>>>>>> log.warn(e.getMessage());
>>>>>>>> throw new NachweiseExistsException("Nachweise '" +
>>>>>>>> nachweise.getId() + "' already exists!");
>>>>>>>> } catch (JpaSystemException e) { // needed for JPA
>>>>>>>> //e.printStackTrace();
>>>>>>>> log.warn(e.getMessage());
>>>>>>>> throw new NachweiseExistsException("Nachweise '" +
>>>>>>>> nachweise.getId() + "' already exists!");
>>>>>>>> }
>>>>>>>> }
>>>>>>>>
>>>>>>>> Angebot is set by the DropDownChoice Nachweise is first inserted and
>>>>>>>> can
>>>>>>>> be changed.
>>>>>>>>
>>>>>>>> 2.
>>>>>>>>
>>>>>>>> the hibernateModel:
>>>>>>>>
>>>>>>>> //@XmlTransient
>>>>>>>> @ManyToOne(cascade = CascadeType.MERGE,fetch=FetchType.LAZY)
>>>>>>>> @JoinColumn(name="NachKundNr",insertable=false, updatable=false)
>>>>>>>> public Kunde getKunde(){
>>>>>>>> return this.kunde;
>>>>>>>> }
>>>>>>>>
>>>>>>>> recursive Part for Kunde
>>>>>>>>
>>>>>>>>
>>>>>>>> @XmlTransient
>>>>>>>> @OneToMany(cascade={CascadeType.MERGE},fetch=FetchType.LAZY)
>>>>>>>> @JoinColumn(name="NachKundNr",insertable=false, updatable=false )
>>>>>>>> public List<Nachweise> getNachweise() {
>>>>>>>> return nachweise;
>>>>>>>> }
>>>>>>>>
>>>>>>>> Kunde ist set is set after before adding the form :
>>>>>>>>
>>>>>>>> final NachweiseForm nachweiseform=new
>>>>>>>> NachweiseForm("form",model);
>>>>>>>>
>>>>>>>> if (!(pars.getPosition("nachweisnr")>=0&&pars.get("
>>>>>>>> nachweisnr").toLong()>0))
>>>>>>>> {
>>>>>>>>
>>>>>>>> if (pars.getPosition("kundennr")>=0&&pars.get("kundennr").
>>>>>>>> toLong()>0)
>>>>>>>> {
>>>>>>>> Kunde kunde=kundeManager.get(new
>>>>>>>> Long(pars.get("kundennr").
>>>>>>>> toString()));
>>>>>>>> System.err.println("====================== set Kunde
>>>>>>>> reached");
>>>>>>>> nachweiseform.getModelObject().setKunde(kunde);
>>>>>>>> ======================= recursive Part for Kunde early set
>>>>>>>> =======================
>>>>>>>> nachweiseform.getModelObject().getKunde().addNachweis(
>>>>>>>> nachweiseform.getModelObject());
>>>>>>>> }
>>>>>>>>
>>>>>>>> }
>>>>>>>>
>>>>>>>> after opening the form you see the Id of Kunde
>>>>>>>> after save it disappears.
>>>>>>>>
>>>>>>>> add(nachweiseform);
>>>>>>>>
>>>>>>>> When I set the recursive part later same result
>>>>>>>>
>>>>>>>> When I try to set the recursive part later I get the same result
>>>>>>>>
>>>>>>>> Am 04.05.2014 08:55, schrieb mscoon:
>>>>>>>>
>>>>>>>> Usually this is not a problem. But maybe you are doing something
>>>>>>>> different
>>>>>>>>
>>>>>>>> that the "usual". I think you will need to show us your code to
>>>>>>>> help
>>>>>>>>
>>>>>>>>> you
>>>>>>>>> any further.
>>>>>>>>>
>>>>>>>>>
>>>>>>>>> On Sun, May 4, 2014 at 9:12 AM, Yahoo <hansheinrichbr...@yahoo.de>
>>>>>>>>> wrote:
>>>>>>>>>
>>>>>>>>> It's the solution for all MANYTOONE-Fields defined in the Form
>>>>>>>>>
>>>>>>>>> I have a MANYTOONE-Field which is preset and not set in the Form.
>>>>>>>>>
>>>>>>>>>> This field is not stored.
>>>>>>>>>>
>>>>>>>>>> Am 02.05.2014 01:24, schrieb mscoon:
>>>>>>>>>>
>>>>>>>>>> No you don't. The referenced objects will be serialized along
>>>>>>>>>> with
>>>>>>>>>> the
>>>>>>>>>>
>>>>>>>>>> entity you are serializing and everything should work just
>>>>>>>>>> fine.
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>>
>>>>>>>>>>> On Thu, May 1, 2014 at 10:30 PM, Yahoo <
>>>>>>>>>>> hansheinrichbr...@yahoo.de
>>>>>>>>>>> wrote:
>>>>>>>>>>>
>>>>>>>>>>> Ok,thank you, that's it.
>>>>>>>>>>>
>>>>>>>>>>> My Entity has a lot of MANYTOONE relationships which are set
>>>>>>>>>>>
>>>>>>>>>>> byDropDownChoices.
>>>>>>>>>>>> In the case of a new entity, do I have to load all these
>>>>>>>>>>>> Entities
>>>>>>>>>>>> too
>>>>>>>>>>>> and
>>>>>>>>>>>> to save their ids ?
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> Am 01.05.2014 15:01, schrieb mscoon:
>>>>>>>>>>>>
>>>>>>>>>>>> Heiner,
>>>>>>>>>>>>
>>>>>>>>>>>> You didn't tell us which dependency injection framework you
>>>>>>>>>>>> you
>>>>>>>>>>>>
>>>>>>>>>>>> using.
>>>>>>>>>>>>
>>>>>>>>>>>>> If you're using Spring then simply use the @SpringBean
>>>>>>>>>>>>> annotation to
>>>>>>>>>>>>> get a
>>>>>>>>>>>>> reference to an EntityManager or a Dao.
>>>>>>>>>>>>>
>>>>>>>>>>>>> @SpringBean automatically works only for components so you'll
>>>>>>>>>>>>> also
>>>>>>>>>>>>> need
>>>>>>>>>>>>> to
>>>>>>>>>>>>> add a call to injector to your model's constructor.
>>>>>>>>>>>>>
>>>>>>>>>>>>> public class MyModel implements IModel {
>>>>>>>>>>>>>
>>>>>>>>>>>>> @SpringBean
>>>>>>>>>>>>> EntityManager entityManager;
>>>>>>>>>>>>>
>>>>>>>>>>>>> public MyModel() {
>>>>>>>>>>>>> Injector.get().inject(this);
>>>>>>>>>>>>> }
>>>>>>>>>>>>>
>>>>>>>>>>>>> ...
>>>>>>>>>>>>> }
>>>>>>>>>>>>>
>>>>>>>>>>>>> This will take care of instantiating all @SpringBean annotated
>>>>>>>>>>>>> fields
>>>>>>>>>>>>> as
>>>>>>>>>>>>> well are handle their serialization/deserialization.
>>>>>>>>>>>>>
>>>>>>>>>>>>> Marios
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>>
>>>>>>>>>>>>> On Thu, May 1, 2014 at 3:42 PM, Yahoo <
>>>>>>>>>>>>> hansheinrichbr...@yahoo.de>
>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>
>>>>>>>>>>>>> I tried the AbstractEntityModel <http://
>>>>>>>>>>>>> http://wicketinaction.
>>>>>>>>>>>>>
>>>>>>>>>>>>> com/2008/09/building-a-smart-entitymodel/> from Igor
>>>>>>>>>>>>> Vaynberg
>>>>>>>>>>>>> but I
>>>>>>>>>>>>>
>>>>>>>>>>>>> didn't get
>>>>>>>>>>>>>
>>>>>>>>>>>>>> solved the @Dependency annotation from Vaynbergs salve.
>>>>>>>>>>>>>> Is there another solution for the Hibernate integration for
>>>>>>>>>>>>>> models.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Best regards
>>>>>>>>>>>>>> Heiner
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>>>> ---------
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> To unsubscribe, e-mail: users-unsubscribe@wicket.
>>>>>>>>>>>>>> apache.org
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> For additional commands, e-mail:
>>>>>>>>>>>>> users-h...@wicket.apache.org
>>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>>
>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>> ------------------------------
>>>>>>>>>>>> ---------
>>>>>>>>>>>>
>>>>>>>>>>>> To unsubscribe, e-mail: users-unsubscr...@wicket.apache.org
>>>>>>>>>>>>
>>>>>>>>>>> For additional commands, e-mail: users-h...@wicket.apache.org
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>> ------------------------------------------------------------
>>>>>>>>>> ---------
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