Hi Adam, if you use UML2EJB (or AndroMDA, as it will be called shortly), you can model this in UML and have those magic XDoclet tags generated automatically without worrying about it.
See http://uml2ejb.sourceforge.net Cheers Matthias --- Matthias Bohlen "Consulting that helps project teams to succeed..." http://www.mbohlen.de/ > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]] On Behalf Of Adam > Sent: Wednesday, February 19, 2003 9:00 PM > To: [EMAIL PROTECTED] > Subject: Re: [Xdoclet-user] JBoss CMR problem > > > Jeff: > I was dealing with this very problem last night of 1:1 uni > relationship between parent and child. All I can say is > "bless the xPetstore demo!" for it showed me the way. > > Here's what I learned in regard to properly setting up the > relationship. This example uses JBoss. I used the > Product:Item relationship from the xPetstore to figure this out. > > > For a Parent that has a child, where the tables should end > up looking like: > > parent: > ------- > parentID : integer > parentInfo : varchar > > child: > ------- > childID : integer > childInfo : varchar > parentId : integer > > > In the ParentEJB: > > /** > * returns the child from a Parent object > * > * @return a Child object > * @ejb.interface-methid > * @ejb.relation > * name="parent-child" > * role-name="parent-has-child" > */ > public abstract ChildLocal getChild(); > > > > In the ChildEJB: > > /** > * Returns the Parent > * > * @ejb.interface-method > * > * @ejb.relation > * name="parent-child" > * role-name="child-belongs_to-parent > * cascade-delete="yes" > * > * @jboss.relation > * related-pk-field="parentId" > * fk-column="parent_id_fk" > */ > public abstract ParentLocal getParent(); > > Note: parentId relates to the Parent.getParentId() method > the column "parent_id_fk" will be the column > created in the Child table. > > I hope this helps solve your problem. > > -- adam > > ----- Original Message ----- > From: "Jeff Markham" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Tuesday, February 18, 2003 7:13 PM > Subject: [Xdoclet-user] JBoss CMR problem > > > (I'm an XDoclet newbie) > > I have a 1-to-1 unidirectional relationship. It is User ---> > Department. All works seemingly well until ejbPostCreate > where I'm setting the Department CMR field. I've posted my > problem on the JBoss CMP forum a couple times but no > response. Others with the same problem seem to also using > XDoclet so I thought I'd see if there's any XDoclet users > who've had this problem and managed to have it solved. Any > guidance would be greatly appreciated. Thank you. > > Code snippets: > > PfinetUser > ------------------------------------ > * @ejb.bean > * type="CMP" > * cmp-version="2.x" > * name="PfinetUser" > * jndi-name="ejb/pfi/security/PfinetUser" > * view-type="both" > * schema="PfinetUser" > > . . . > > /** > * @param department the new CMR value > * > * @ejb.interface-method > */ > public abstract void setDepartment(Department department); > > /** > * This is a uni-directional one-to-one relationship CMR method > * > * @return the related com.pfi.sys.DepartmentLocal. > * > * @ejb.relation > * name="departments-pfinet_users" > * role-name="pfinet_user-has-department" > * target-ejb="Department" > * target-role-name="department-has-pfinet_user" > * target-multiple="no" > * @ejb.interface-method > * @jboss.relation-mapping style="foreign-key" > * @jboss.relation > * fk-constraint="true" > * fk-column="department" > * related-pk-field="id" > */ > public abstract Department getDepartment(); > > . . . > > /** > * @ejb.create-method > */ > public PfinetUserPK ejbCreate(PfinetUserValue data, Department > department) throws CreateException > { > setUserId(data.getUserId()); > setPfinetUserValue(data); > > return null; > } > public void ejbPostCreate(PfinetUserValue data, Department > department) throws CreateException > { > setDepartment(department); > } > > The exception > ------------------------------------ > > javax.ejb.EJBException: Data contains multiple values, but > this cmr field is single valued > at > org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.load( > JDBCCMRFieldBr > idge.java:943) > at > org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.load( > JDBCCMRFieldBr > idge.java:931) > at > org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.getRe > latedId(JDBCCM > RFieldBridge.java:833) > at > org.jboss.ejb.plugins.cmp.jdbc.JDBCRelationInterceptor.invoke( > JDBCRelationIn > terceptor.java:105) > at > org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke( > EntitySynchron > izationInterceptor.java:303) > at > org.jboss.resource.connectionmanager.CachedConnectionIntercept > or.invoke(Cach > edConnectionInterceptor.java:186) > at > org.jboss.ejb.plugins.EntityReentranceInterceptor.invoke(Entit > yReentranceInt > erceptor.java:65) > at > org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityI > nstanceInterce > ptor.java:168) > at > org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockI > nterceptor.jav > a:107) > at > org.jboss.ejb.plugins.EntityCreationInterceptor.invoke(EntityC > reationInterce > ptor.java:69) > at > org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(Abstrac > tTxInterceptor > .java:108) > at > org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxI > nterceptorCMT. > java:267) > at > org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT > .java:101) > at > org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInter > ceptor.java:13 > 0) > at > org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:204) > at > org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(Pro > xyFactoryFinde > rInterceptor.java:154) > at org.jboss.ejb.EntityContainer.invoke(EntityContainer.java:481) > at > org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.invok > eGetRelatedId( > JDBCCMRFieldBridge.java:736) > at > org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.creat > eRelationLinks > (JDBCCMRFieldBridge.java:661) > at > org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setIn > stanceValue(JD > BCCMRFieldBridge.java:636) > at > org.jboss.ejb.plugins.cmp.jdbc.bridge.JDBCCMRFieldBridge.setVa > lue(JDBCCMRFie > ldBridge.java:567) > at > org.jboss.ejb.plugins.cmp.bridge.EntityBridgeInvocationHandler > .invoke(Entity > BridgeInvocationHandler.java:126) > at org.jboss.proxy.compiler.Runtime.invoke(Runtime.java:59) > > > > at > com.pfi.security.PfinetUserCMP$Proxy.setDepartment(<generated>) > > > > at > com.pfi.security.PfinetUserEJB.ejbPostCreate(PfinetUserEJB.java:383) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccess > orImpl.java:39 > ) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMeth > odAccessorImpl > .java:25) > at java.lang.reflect.Method.invoke(Method.java:324) > at > org.jboss.ejb.plugins.CMPPersistenceManager.postCreateEntity(C > MPPersistenceM > anager.java:288) > at > org.jboss.resource.connectionmanager.CachedConnectionIntercept > or.postCreateE > ntity(CachedConnectionInterceptor.java:278) > at > org.jboss.ejb.EntityContainer.postCreateLocalHome(EntityContai > ner.java:583) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccess > orImpl.java:39 > ) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMeth > odAccessorImpl > .java:25) > at java.lang.reflect.Method.invoke(Method.java:324) > at > org.jboss.ejb.EntityContainer$ContainerInterceptor.invoke(Enti tyContainer.ja > va:1085) > at > org.jboss.ejb.plugins.cmp.jdbc.JDBCRelationInterceptor.invoke( > JDBCRelationIn > terceptor.java:95) > at > org.jboss.ejb.plugins.EntitySynchronizationInterceptor.invoke( > EntitySynchron > izationInterceptor.java:303) > at > org.jboss.resource.connectionmanager.CachedConnectionIntercept > or.invoke(Cach > edConnectionInterceptor.java:186) > at > org.jboss.ejb.plugins.EntityReentranceInterceptor.invoke(Entit > yReentranceInt > erceptor.java:91) > at > org.jboss.ejb.plugins.EntityInstanceInterceptor.invoke(EntityI > nstanceInterce > ptor.java:168) > at > org.jboss.ejb.plugins.EntityLockInterceptor.invoke(EntityLockI > nterceptor.jav > a:107) > at > org.jboss.ejb.plugins.EntityCreationInterceptor.invokeHome(Ent > ityCreationInt > erceptor.java:59) > at > org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(Abstrac > tTxInterceptor > .java:112) > at > org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxI > nterceptorCMT. > java:237) > at > org.jboss.ejb.plugins.TxInterceptorCMT.invokeHome(TxIntercepto > rCMT.java:71) > at > org.jboss.ejb.plugins.SecurityInterceptor.invokeHome(SecurityI > nterceptor.jav > a:105) > at > org.jboss.ejb.plugins.LogInterceptor.invokeHome(LogInterceptor > .java:129) > at > org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invokeHome > (ProxyFactoryF > inderInterceptor.java:125) > at > org.jboss.ejb.EntityContainer.invokeHome(EntityContainer.java:475) > at > org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invokeHome(B > aseLocalProxyF > actory.java:271) > at > org.jboss.ejb.plugins.local.LocalHomeProxy.invoke(LocalHomePro > xy.java:110) > at $Proxy176.create(Unknown Source) > at > com.pfi.security.SecurityFacadeEJB.addUser(SecurityFacadeEJB.java:102) > at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) > at > sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccess > orImpl.java:39 > ) > at > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMeth > odAccessorImpl > .java:25) > at java.lang.reflect.Method.invoke(Method.java:324) > at > org.jboss.ejb.StatelessSessionContainer$ContainerInterceptor.i > nvoke(Stateles > sSessionContainer.java:606) > at > org.jboss.resource.connectionmanager.CachedConnectionIntercept > or.invoke(Cach > edConnectionInterceptor.java:186) > at > org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invo > ke(StatelessSe > ssionInstanceInterceptor.java:77) > at > org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(Abstrac > tTxInterceptor > .java:108) > at > org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxI > nterceptorCMT. > java:237) > at > org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT > .java:101) > at > org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInter > ceptor.java:13 > 0) > at > org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:204) > at > org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(Pro > xyFactoryFinde > rInterceptor.java:154) > at > org.jboss.ejb.StatelessSessionContainer.invoke(StatelessSessio > nContainer.jav > a:303) > at > org.jboss.ejb.plugins.local.BaseLocalProxyFactory.invoke(BaseL > ocalProxyFacto > ry.java:351) > at > org.jboss.ejb.plugins.local.StatelessSessionProxy.invoke(State > lessSessionPro > xy.java:81) > at $Proxy196.addUser(Unknown Source) > at > com.pfi.security.SecurityServlet.doAdd(SecurityServlet.java:150) > at > com.pfi.security.SecurityServlet.service(SecurityServlet.java:298) > at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) > at > org.apache.catalina.core.ApplicationFilterChain.internalDoFilt > er(Application > FilterChain.java:247) > at > org.apache.catalina.core.ApplicationFilterChain.doFilter(Appli > cationFilterCh > ain.java:193) > at > org.apache.catalina.core.StandardWrapperValve.invoke(StandardW > rapperValve.ja > va:260) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContextValve.invoke(StandardC > ontextValve.ja > va:191) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.authenticator.AuthenticatorBase.invoke(Aut > henticatorBase > .java:550) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.CertificatesValve.invoke(Certificat > esValve.java:2 > 46) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.jboss.web.catalina.session.ClusteredSessionValve.invoke(Cl > usteredSession > Valve.java:78) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardContext.invoke(StandardContex > t.java:2415) > at > org.apache.catalina.core.StandardHostValve.invoke(StandardHost > Valve.java:180 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.valves.ErrorDispatcherValve.invoke(ErrorDi > spatcherValve. > java:170) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReport > Valve.java:172 > ) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValv > e.java:509) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:641) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.catalina.core.StandardEngineValve.invoke(StandardEn > gineValve.java > :174) > at > org.apache.catalina.core.StandardPipeline$StandardPipelineValv > eContext.invok > eNext(StandardPipeline.java:643) > at > org.apache.catalina.core.StandardPipeline.invoke(StandardPipel > ine.java:480) > at > org.apache.catalina.core.ContainerBase.invoke(ContainerBase.java:995) > at > org.apache.ajp.tomcat4.Ajp13Processor.process(Ajp13Processor.java:458) > at > org.apache.ajp.tomcat4.Ajp13Processor.run(Ajp13Processor.java:551) > at java.lang.Thread.run(Thread.java:536) > > > > ------------------------------------------------------- > This SF.net email is sponsored by: SlickEdit Inc. Develop an > edge. The most comprehensive and flexible code editor you can > use. Code faster. C/C++, C#, Java, HTML, XML, many more. FREE > 30-Day Trial. www.slickedit.com/sourceforge > _______________________________________________ > xdoclet-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/xdoclet-user > > > ------------------------------------------------------- > This SF.net email is sponsored by: SlickEdit Inc. Develop an > edge. The most comprehensive and flexible code editor you can > use. Code faster. C/C++, C#, Java, HTML, XML, many more. FREE > 30-Day Trial. www.slickedit.com/sourceforge > _______________________________________________ > xdoclet-user mailing list > [EMAIL PROTECTED] > https://lists.sourceforge.net/lists/listinfo/xdoclet-user > ------------------------------------------------------- This SF.net email is sponsored by: SlickEdit Inc. Develop an edge. The most comprehensive and flexible code editor you can use. Code faster. 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