1 Reply Latest reply on Jun 21, 2007 3:35 PM by ellenzhao

    [1.3.0 Alpha]property 'aString'  not found on type java.lang

    ellenzhao
    ellenzhao Jun 21, 2007 2:15 PM

      This exception:

      javax.el.PropertyNotFoundException: /new-recipe.xhtml @127,54 value="#{ingre.unitSeq}": Property 'unitSeq' not found on type java.lang.String


      Here is the relevant code in the new-recipe.xhtml: 

      <rich:panel id="storedIngredients"
 rendered="#{createRecipe.ingredients.size > 0}">
 <h:dataTable value="createRecipe.ingredients" var="ingre">
 <h:column>
 <f:facet name="header">
 <h:outputText value="Measurement" />
 </f:facet>
 <h:outputText value="#{ingre.unitSeq}" />
 </h:column>
 </h:dataTable>
 </rich:panel>


      Here is the relevant code in the backing bean: 
      @Stateful
@Name("createRecipe")
@Scope(CONVERSATION)
public class CreateRecipeUseCase implements Serializable, CreateRecipe {

 @In private EntityManager entityManager;

 @In(required = false)
 @Out(required = false)
 private Recipe recipe;

 private Integer recipeId;

 private List<Ingredient> ingredients;


 @Begin
 public void stageOne() {
 entityManager.persist(recipe);
 recipeId = recipe.getId();
 ingredients = new ArrayList<Ingredient>();
 }

 ...

 public void addAnIngredient(BigDecimal amount) {
 Food tmp = entityManager.find(Food.class, "01001"); //for testing purpose
 try {
 Ingredient ingre = new Ingredient(recipe, tmp,
 ingredient.getAmount(), this.ingreWeight.getSeq());
 entityManager.persist(ingre);
 this.ingredients.add(ingre);
 } catch (EatSmartPersistenceException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }
 }


 @End
 public void cancel() {}

 @Remove
 @Destroy
 public void destroy() {}

 /**
 * @return the ingredients
 */
 public List<Ingredient> getIngredients() {
 return ingredients;
 }

 /**
 * @param ingredients
 * the ingredients to set
 */
 public void setIngredients(List<Ingredient> ingredients) {
 this.ingredients = ingredients;
 }

 /**
 * @return the recipeId
 */
 public Integer getRecipeId() {
 return recipeId;
 }

 /**
 * @param recipeId
 * the recipeId to set
 */
 public void setRecipeId(Integer recipeId) {
 this.recipeId = recipeId;
 }

 // other methods ...


      It's very strange since the new ingredient instance was always successfully created and in the database the persisted evidence can also be found. Why the attributes of a persisted new ingredient cannot be displayed on the page? I'm using Seam 1.3.0 Alpha on JBoss AS 4.2.0. Here is the full error stack:

      2007-06-21 19:50:17,218 DEBUG [org.jboss.seam.Component] done initializing: org.jboss.seam.persistence.persistenceProvider
      2007-06-21 19:50:17,234 DEBUG [org.jboss.seam.contexts.Contexts] found in event context: ingre
      2007-06-21 19:50:17,234 DEBUG [org.jboss.seam.contexts.Contexts] found in event context: ajaxContext
      2007-06-21 19:50:17,234 ERROR [STDERR] Jun 21, 2007 7:50:17 PM com.sun.facelets.FaceletViewHandler handleRenderException
      SEVERE: Error Rendering View[/new-recipe.xhtml]
      javax.faces.FacesException: javax.el.PropertyNotFoundException: /new-recipe.xhtml @127,54 value="#{ingre.unitSeq}": Property 'unitSeq' not found on type java.lang.String
      at javax.faces.component.UIOutput.getValue(UIOutput.java:176)
      at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:189)
      at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:320)
      at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:200)
      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.TableRenderer.encodeChildren(TableRenderer.java:307)
      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.PanelRenderer.doEncodeChildren(PanelRenderer.java:189)
      at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:184)
      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.RendererBase.renderChildren(RendererBase.java:262)
      at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:189)
      at org.richfaces.renderkit.html.PanelRenderer.doEncodeChildren(PanelRenderer.java:184)
      at org.ajax4jsf.framework.renderer.RendererBase.encodeChildren(RendererBase.java:121)
      at javax.faces.component.UIComponentBase.encodeChildren(UIComponentBase.java:809)
      at javax.faces.component.UIComponent.encodeAll(UIComponent.java:886)
      at javax.faces.component.UIComponent.encodeAll(UIComponent.java:892)
      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$FilterChainImpl.doFilter(SeamFilter.java:70)
      at org.jboss.seam.web.MultipartFilter.doFilter(MultipartFilter.java:81)
      at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:56)
      at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:62)
      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.BaseFilter.doFilter(BaseFilter.java:293)
      at org.jboss.seam.web.AbstractAjax4jsfFilter.doFilter(AbstractAjax4jsfFilter.java:35)
      at org.jboss.seam.web.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:56)
      at org.jboss.seam.debug.hot.HotDeployFilter.doFilter(HotDeployFilter.java:64)
      at org.jboss.seam.web.SeamFilter$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.ajax4jsf.framework.ajax.xmlfilter.BaseXMLFilter.doXmlFilter(BaseXMLFilter.java:127)
      at org.ajax4jsf.framework.ajax.xmlfilter.BaseFilter.doFilter(BaseFilter.java:277)
      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:619)
      Caused by: javax.el.PropertyNotFoundException: /new-recipe.xhtml @127,54 value="#{ingre.unitSeq}": Property 'unitSeq' not found on type java.lang.String
      at com.sun.facelets.el.TagValueExpression.getValue(TagValueExpression.java:73)
      at javax.faces.component.UIOutput.getValue(UIOutput.java:173)
      ... 66 more

      Any enlightenment would be highly appreciated! Thanks in advance!!!


      Regards,
      Ellen



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