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soaresinfo
 Post subject: problem dereferencing a collection in a retrieving query
PostPosted: Thu Dec 01, 2005 8:56 am 
Newbie

Joined: Fri Nov 11, 2005 9:58 am
Posts: 1
I'm having problems of kind "you may not dereference a collection with cascade=all-delete-orphan". I've read something about, but my issue is a little different. It occurs when I try retrieving some objects from db, and it occurs randomly with a few queries. When I do a simple search, the exception occurs, if I try the search right after, the result come normally. Remenbering, I am just doing a simple search, not trying change the collection.

Hibernate 2.1.4

Mapping
Code:
 
...
      <bag
            name="garantias"
            lazy="true"
            cascade="all-delete-orphan"
        >

            <key
                column="id_equipamento"
            >
            </key>

            <one-to-many
                  class="br.com.inovar.gif.dominio.GarantiasFornecedor"
            />

      </bag>

        <list
            name="itens"
            table="equipamentos_item"
            lazy="true"
            cascade="none"
        >

            <key
                column="id_equipamento"
            >
            </key>

            <index
                column="ordem"
            />

            <many-to-many
                class="br.com.inovar.gif.dominio.Item"
                column="id_item"
                outer-join="auto"
             />

        </list>

        <set
            name="valoresCaracteristicos"
            lazy="true"
            cascade="all-delete-orphan"
            sort="unsorted"
        >

            <key
                column="id_equipamento"
            >
            </key>

            <one-to-many
                  class="br.com.inovar.gif.dominio.ValorCaracteristico"
            />

        </set>

        <bag
            name="locacao"
            lazy="true"
            cascade="all-delete-orphan"
        >

            <key
                column="id_equipamento"
            >
            </key>

            <one-to-many
                  class="br.com.inovar.gif.dominio.Locacao"
            />

      </bag>

        <bag
            name="slots"
            lazy="true"
            cascade="all"
        >

            <key
                column="id_equipamento"
            >
            </key>

            <one-to-many
                  class="br.com.inovar.gif.dominio.Slot"
            />

      </bag>
...






Stacktrace

Code:
2005-11-23 18:23:25,277 ERROR [org.jboss.web.localhost.Engine] StandardWrapperValve[action]: Servlet.service() for servlet action threw exception
br.com.inovar.gif.persistencia.PersistenciaException: net.sf.hibernate.HibernateException: You may not dereference a collection with cascade="all-delete-orphan"
   at br.com.inovar.gif.persistencia.hibernate.HibernateEquipamentoDAO.busqueEquipamentosInfo(HibernateEquipamentoDAO.java:426)
   at br.com.inovar.gif.dominio.facade.FacadeEquipamento.busqueEquipamentos(FacadeEquipamento.java:165)
   at br.com.inovar.gif.controle.SelecaoDeEquipamentosAction.pesquisaEquipamentosCarrinho(SelecaoDeEquipamentosAction.java:209)
   at sun.reflect.GeneratedMethodAccessor323.invoke(Unknown Source)
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
   at java.lang.reflect.Method.invoke(Method.java:324)
   at org.apache.struts.actions.DispatchAction.dispatchMethod(DispatchAction.java:280)
   at org.apache.struts.actions.DispatchAction.execute(DispatchAction.java:216)
   at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:484)
   at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:274)
   at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1482)
   at org.apache.struts.action.ActionServlet.doPost(ActionServlet.java:525)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:237)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
   at br.com.inovar.gif.controle.filtros.AutenticacaoFilter.doFilter(AutenticacaoFilter.java:46)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
   at br.com.inovar.gif.controle.filtros.GerenciadorDeRecursosFilter.doFilter(GerenciadorDeRecursosFilter.java:48)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:186)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:157)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:214)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
   at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
   at org.apache.catalina.core.StandardContextValve.invokeInternal(StandardContextValve.java:198)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:152)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
   at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:72)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
   at org.jboss.web.tomcat.security.JBossSecurityMgrRealm.invoke(JBossSecurityMgrRealm.java:275)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
   at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:540)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
   at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:137)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:117)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:102)
   at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.core.StandardValveContext.invokeNext(StandardValveContext.java:104)
   at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:520)
   at org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:929)
   at org.apache.coyote.tomcat5.CoyoteAdapter.service(CoyoteAdapter.java:160)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:799)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:705)
   at org.apache.tomcat.util.net.TcpWorkerThread.runIt(PoolTcpEndpoint.java:577)
   at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:683)
   at java.lang.Thread.run(Thread.java:534)
Caused by: net.sf.hibernate.HibernateException: You may not dereference a collection with cascade="all-delete-orphan"
   at net.sf.hibernate.impl.SessionImpl.updateUnreachableCollection(SessionImpl.java:2915)
   at net.sf.hibernate.impl.SessionImpl.flushCollections(SessionImpl.java:2784)
   at net.sf.hibernate.impl.SessionImpl.flushEverything(SessionImpl.java:2257)
   at net.sf.hibernate.impl.SessionImpl.autoFlushIfRequired(SessionImpl.java:1801)
   at net.sf.hibernate.impl.SessionImpl.getQueries(SessionImpl.java:1567)
   at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1532)
   at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1520)
   at net.sf.hibernate.impl.SessionImpl.find(SessionImpl.java:1512)
   at br.com.inovar.gif.persistencia.hibernate.HibernateEquipamentoDAO.busqueEquipamentosInfo(HibernateEquipamentoDAO.java:423)
   ... 49 more


Database: Oracle 9
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