[jboss-user] [JBoss Seam] - Recommended way of using Select boxes - The Seam Way
smithbstl
do-not-reply at jboss.com
Mon Jul 16 17:43:46 EDT 2007
I am attempting to load a SelectOneMenu with a list of entities. I then want to use the selection in a query to get another entity. Seems like a simple use case so far.
Should I be using the entity from SelectOneMany or just its id field to filter the query?
I am getting a bunch of weird TransientObjectExceptions when my page loads/reloads.
Here is an example of what I am doing
I have a SelectOneMenu with a list of LandmarkType entities (filled from entity-query "allLandmarkTypes") that have a one to many relationship with Landmark entity. I wish to fill a list of Landmarks based on my LandmarkType selection
<h:outputLabel id="landmarkType_label" for="landmarkType_id"
| value="#{messages['AddressLookup.landmarkType']}"/>
| <a4j:region selfRendered="true">
| <h:selectOneMenu id="landmarkType_id"
| value="#{landmarkType}">
| <s:selectItems label="#{landType.landmarkTypeDescription}"
| value="#{allLandmarkTypes.resultList}"
| noSelectionLabel="(None)" var="landType"/>
| <s:convertEntity/>
| <a4j:support event="onchange"
| actionListener="#{addressLocator.fillLandmarkList}"
| ajaxSingle="true" reRender="landmark_input"/>
| </h:selectOneMenu>
| </a4j:region>
| <h:outputLabel id="landmark_label" for="landmark_id"
| value="#{messages['AddressLookup.landmark']}"/>
| <h:selectOneMenu id="landmark_input" value="#{landmark}">
| <s:selectItems label="#{land.landmarkName}"
| value="#{landmarkList}"
| noSelectionLabel="(None)" var="land"/>
| <s:convertEntity/>
| </h:selectOneMenu>
| @Stateful
| @Name("addressLocator")
| public class AddressLocatorAction implements AddressLocator {
|
| @In(required=false)
| private LandmarkType landmarkType;
|
| @Out(required=false)
| List<Landmark> landmarkList;
|
| @Factory("landmarkList")
| public void fillLandmarkList() {
|
| landmarkList = entityManager.createQuery("SELECT l from Landmark l WHERE l.landmarkType = :landmarkType" +
| " OR :landmarkType IS NULL ORDER BY l.landmarkName").setParameter("landmarkType",landmarkType).getResultList();
|
| }
| ....
|
So my question is, should I be dealing with the LandmarkType entity directly or should I just use its Id to filter the Landmark List. I am concerned about the state of the LandmarkType entity. What is the recommended way of dealing with this seemingly simple use case?
When I load the page I get the following error.
SEVERE: Error Rendering View[/addresslookup.xhtml]
| javax.ejb.EJBTransactionRolledbackException: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.stlouiscity.csb.ejb.model.LandmarkType
| at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:87)
| at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
| at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:195)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.stateful.StatefulInstanceInterceptor.invoke(StatefulInstanceInterceptor.java:83)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77)
| at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.stateful.StatefulContainer.localInvoke(StatefulContainer.java:204)
| at org.jboss.ejb3.stateful.StatefulLocalProxy.invoke(StatefulLocalProxy.java:100)
| at $Proxy174.fillLandmarkList(Unknown Source)
| 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 org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
| at org.jboss.seam.intercept.RootInvocationContext.proceed(RootInvocationContext.java:31)
| at org.jboss.seam.intercept.ClientSideInterceptor$1.proceed(ClientSideInterceptor.java:72)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
| at org.jboss.seam.interceptors.RemoveInterceptor.aroundInvoke(RemoveInterceptor.java:40)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103)
| at org.jboss.seam.intercept.ClientSideInterceptor.invoke(ClientSideInterceptor.java:50)
| at org.javassist.tmp.java.lang.Object_$$_javassist_91.fillLandmarkList(Object_$$_javassist_91.java)
| 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 org.jboss.seam.util.Reflections.invoke(Reflections.java:21)
| at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:124)
| at org.jboss.seam.Component.callComponentMethod(Component.java:1904)
| at org.jboss.seam.Component.getInstanceFromFactory(Component.java:1766)
| at org.jboss.seam.Component.getInstance(Component.java:1703)
| at org.jboss.seam.Component.getInstance(Component.java:1680)
| at org.jboss.seam.Component.getInstance(Component.java:1674)
| at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:57)
| at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:53)
| at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:64)
| at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44)
| at org.jboss.el.ValueExpressionImpl.getValue(ValueExpressionImpl.java:186)
| at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:71)
| at javax.faces.component.UISelectItems.getValue(UISelectItems.java:130)
| at org.jboss.seam.ui.UISelectItems.getValue(UISelectItems.java:170)
| at com.sun.faces.renderkit.RenderKitUtils.getSelectItems(RenderKitUtils.java:323)
| at com.sun.faces.renderkit.html_basic.MenuRenderer.getOptionNumber(MenuRenderer.java:675)
| at com.sun.faces.renderkit.html_basic.MenuRenderer.renderSelect(MenuRenderer.java:793)
| at com.sun.faces.renderkit.html_basic.MenuRenderer.encodeEnd(MenuRenderer.java:335)
| at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:833)
| at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeRecursive(HtmlBasicRenderer.java:279)
| at com.sun.faces.renderkit.html_basic.GridRenderer.encodeChildren(GridRenderer.java:242)
| at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)
| at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:282)
| at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262)
| at org.richfaces.renderkit.TabRendererBase.encodeChildren(TabRendererBase.java:113)
| at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)
| at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:282)
| at org.ajax4jsf.framework.renderer.RendererBase.renderChildren(RendererBase.java:262)
| at org.richfaces.renderkit.html.TabPanelRenderer.doEncodeChildren(TabPanelRenderer.java:272)
| at org.richfaces.renderkit.html.TabPanelRenderer.doEncodeChildren(TabPanelRenderer.java:267)
| at org.ajax4jsf.framework.renderer.RendererBase.encodeChildren(RendererBase.java:121)
| at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)
| at org.ajax4jsf.framework.renderer.RendererBase.renderChild(RendererBase.java:282)
| at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:159)
| at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:97)
| at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:150)
| at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxChildren(AjaxChildrenRenderer.java:97)
| at org.ajax4jsf.framework.renderer.AjaxChildrenRenderer.encodeAjaxComponent(AjaxChildrenRenderer.java:150)
| at org.ajax4jsf.framework.renderer.AjaxContainerRenderer.encodeAjax(AjaxContainerRenderer.java:125)
| at org.ajax4jsf.framework.ajax.AjaxViewRoot.encodeAjax(AjaxViewRoot.java:549)
| at org.ajax4jsf.framework.ajax.AjaxViewRoot$4.invokeRoot(AjaxViewRoot.java:380)
| at org.ajax4jsf.framework.ajax.JsfOneOneInvoker.invokeOnRegionOrRoot(JsfOneOneInvoker.java:53)
| at org.ajax4jsf.framework.ajax.AjaxContext.invokeOnRegionOrRoot(AjaxContext.java:191)
| at org.ajax4jsf.framework.ajax.AjaxViewRoot.encodeChildren(AjaxViewRoot.java:397)
| at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
| at com.sun.facelets.FaceletViewHandler.renderView(FaceletViewHandler.java:571)
| at org.ajax4jsf.framework.ViewHandlerWrapper.renderView(ViewHandlerWrapper.java:108)
| at org.ajax4jsf.framework.ajax.AjaxViewHandler.renderView(AjaxViewHandler.java:233)
| at com.sun.faces.lifecycle.RenderResponsePhase.execute(RenderResponsePhase.java:106)
| at com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:251)
| at com.sun.faces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:144)
| at javax.faces.webapp.FacesServlet.service(FacesServlet.java:245)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:70)
| at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:64)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:56)
| at org.jboss.seam.web.ExceptionF
| 2007-07-16 16:36:44,743 ERROR [STDERR] ilter.doFilter(ExceptionFilter.java:60)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:56)
| at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:81)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:56)
| at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:47)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:56)
| at org.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
| at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
| at org.jboss.seam.web.AbstractAjax4jsfFilter.doFilter(AbstractAjax4jsfFilter.java:35)
| at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:56)
| at org.jboss.seam.web.SeamFilter.doFilter(SeamFilter.java:127)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
| at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
| at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
| at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
| at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
| at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179)
| at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433)
| at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
| at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)
| at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104)
| at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
| at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
| at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241)
| at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844)
| at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580)
| at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)
| at java.lang.Thread.run(Thread.java:595)
| Caused by: java.lang.IllegalStateException: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.stlouiscity.csb.ejb.model.LandmarkType
| at org.hibernate.ejb.AbstractEntityManagerImpl.throwPersistenceException(AbstractEntityManagerImpl.java:626)
| at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:73)
| at com.stlouiscity.csb.ejb.action.AddressLocatorAction.fillLandmarkList(AddressLocatorAction.java:212)
| 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 org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112)
| at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166)
| at org.jboss.seam.intercept.EJBInvocationContext.proceed(EJBInvocationContext.java:37)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:57)
| at org.jboss.seam.interceptors.BijectionInterceptor.aroundInvoke(BijectionInterceptor.java:47)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at org.jboss.seam.interceptors.ManagedEntityIdentityInterceptor.aroundInvoke(ManagedEntityIdentityInterceptor.java:37)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at org.jboss.seam.interceptors.BusinessProcessInterceptor.aroundInvoke(BusinessProcessInterceptor.java:50)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at org.jboss.seam.interceptors.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:27)
| at org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:69)
| at org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:103)
| at org.jboss.seam.intercept.SessionBeanInterceptor.aroundInvoke(SessionBeanInterceptor.java:53)
| 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 org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:118)
| at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.entity.ExtendedPersistenceContextPropagationInterceptor.invoke(ExtendedPersistenceContextPropagationInterceptor.java:57)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47)
| at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101)
| at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:126)
| ... 121 more
| Caused by: org.hibernate.TransientObjectException: object references an unsaved transient instance - save the transient instance before flushing: com.stlouiscity.csb.ejb.model.LandmarkType
| at org.hibernate.engine.ForeignKeys.getEntityIdentifierIfNotUnsaved(ForeignKeys.java:219)
| at org.hibernate.type.EntityType.getIdentifier(EntityType.java:397)
| at org.hibernate.type.ManyToOneType.nullSafeSet(ManyToOneType.java:87)
| at org.hibernate.param.NamedParameterSpecification.bind(NamedParameterSpecification.java:38)
| at org.hibernate.loader.hql.QueryLoader.bindParameterValues(QueryLoader.java:491)
| at org.hibernate.loader.Loader.prepareQueryStatement(Loader.java:1563)
| at org.hibernate.loader.Loader.doQuery(Loader.java:673)
| at org.hibernate.loader.Loader.doQueryAndInitializeNonLazyCollections(Loader.java:236)
| at org.hibernate.loader.Loader.doList(Loader.java:2220)
| at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2104)
| at org.hibernate.loader.Loader.list(Loader.java:2099)
| at org.hibernate.loader.hql.QueryLoader.list(QueryLoader.java:378)
| at org.hibernate.hql.ast.QueryTranslatorImpl.list(QueryTranslatorImpl.java:338)
| at org.hibernate.engine.query.HQLQueryPlan.performList(HQLQueryPlan.java:172)
| at org.hibernate.impl.SessionImpl.list(SessionImpl.java:1121)
| at org.hibernate.impl.QueryImpl.list(QueryImpl.java:79)
| at org.hibernate.ejb.QueryImpl.getResultList(QueryImpl.java:64)
| ... 154 more
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