2 Replies Latest reply on Sep 7, 2009 6:57 PM by Cleber Goncalves

    Can't @In annotations and accessor methods be used at the same time for different properties?

    Cleber Goncalves Newbie

      Hi,


      I generated a new form using sean-gen (seam new-form) and added another field to it using an @In annotation:




      @Stateful
      @Name("dummy")
      public class DummyBean implements Dummy
      {
          @Logger private Log log;
      
          @In StatusMessages statusMessages;
          
          @In private String bar;
      
          private String foo;
      
          public void doStuff()
          {
              String msg = "dummy.doStuff() action called with foo: #{dummy.foo} and bar: #{bar}. instance variable for bar:" + bar;
                log.info(msg);
              statusMessages.add(msg);
          }
      
          @Length(max = 10)
          public String getFoo()
          {
              return foo;
          }
      
          public void setFoo(String value)
          {
              this.foo = value;
          }
      
          @Remove
          public void destroy() {}
      
      }
      





      The interface is this one:


      @Local
      public interface Dummy
      {
          public void doStuff();
          public String getFoo();
          public void setFoo(String value);
          public void destroy();
      }
      



      The problem is, when I try to access the properties I get:


      javax.faces.FacesException: javax.el.ELException: /dummy.xhtml @22,52 value="#{dummy.foo}": Error reading 'foo' on type org.javassist.tmp.java.lang.Object_$$_javassist_seam_2
           at javax.faces.component.UIOutput.getValue(UIOutput.java:187)
           at com.sun.faces.renderkit.html_basic.HtmlBasicInputRenderer.getValue(HtmlBasicInputRenderer.java:201)
           at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.getCurrentValue(HtmlBasicRenderer.java:284)
           at com.sun.faces.renderkit.html_basic.HtmlBasicRenderer.encodeEnd(HtmlBasicRenderer.java:154)
      .
      .
      .
      Caused by: javax.ejb.EJBTransactionRolledbackException: @In attribute requires non-null value: dummy.bar
           at org.jboss.ejb3.tx.Ejb3TxPolicy.handleInCallerTx(Ejb3TxPolicy.java:115)
           at org.jboss.aspects.tx.TxPolicy.invokeInCallerTx(TxPolicy.java:130)
      
      



      My view is this:


      <!DOCTYPE composition PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
          "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
      <ui:composition xmlns="http://www.w3.org/1999/xhtml"
          xmlns:s="http://jboss.com/products/seam/taglib"
          xmlns:ui="http://java.sun.com/jsf/facelets"
          xmlns:f="http://java.sun.com/jsf/core"
          xmlns:h="http://java.sun.com/jsf/html"
          xmlns:rich="http://richfaces.org/rich"
          xmlns:a="http://richfaces.org/a4j"
          template="layout/template.xhtml">
      
      <ui:define name="body">
      
          <h:form id="dummyForm">
      
              <rich:panel>
                  <f:facet name="header">dummy header</f:facet>
      
                   <s:decorate id="fooField" template="layout/edit.xhtml">
                      <ui:define name="label">Foo</ui:define>
                      <h:inputText id="foo" required="true"
                                   value="#{dummy.foo}"/>
                  </s:decorate>               
                  
                   <s:decorate id="barField" template="layout/edit.xhtml">
                      <ui:define name="label">Bar</ui:define>
                      <h:inputText id="bar" required="true"
                                   value="#{bar}"/>
                  </s:decorate>            
      
                  <div style="clear:both"/>
      
              </rich:panel>
      
              <div class="actionButtons">
                  <h:commandButton id="doStuff" value="doStuff"
                          action="#{dummy.doStuff}"/>
              </div>
      
          </h:form>
      
      </ui:define>
      
      </ui:composition>
      



      If I remove either 'fooField' or 'barField' the view renders and works correctly, but if I try to use both at the same time I get the above exception.


      I also noticed that if I use only @In annotations (remove the accessor methods) the page works.


      Is this something expected? I'm using JBoss 5.1.0.GA, Seam 2.2.0.GA and Java 6.