Adding SelectOneMenu through bean

[makabrus]

Hello,

I need some help on adding a selectOneMenu to a page through the bean.
The code I have is this:

HtmlSelectOneMenu menu = new HtmlSelectOneMenu();
menu.setValueExpression("value", createValueExpression("#{gestDocuments.selection}", String.class));
                    
HtmlSelectItems items = new HtmlSelectItems();
items.setValueExpression("value", createValueExpression("#{gestDocuments.selections}", String.class));

items.setVar("var");
items.setLabel("#{var}");
menu.getChildren().add(items);
dataGroup.getChildren().add(menu);

but with this I'm having an exception:

java.lang.NoClassDefFoundError: org/jboss/seam/ui/component/html/HtmlSelectItems

Help appreciated!

Thank you.

[makabrus]

I managed to find another solution to this problem. Instead of adding the SelectOneMenu from the bean, I used conditional rendering.

Alex

[makabrus]

Well it seams my solution isn't a solution after all. I definitely need to generate the SelectOneMenu in the bean and add it to page.

My code:

HtmlSelectOneMenu select = new HtmlSelectOneMenu();
select.setValueExpression("value", createValueExpression("#{gestDocuments.selection}", String.class));

HtmlSelectItems items = new HtmlSelectItems();
items.setValueExpression("value", createValueExpression("#{gestDocuments.selections}", List.class));
items.setVar("_var");

select.getChildren().add(items);
dataTableGroup.getChildren().add(select); 

I believe the error is lib related but i can't seem to fix it.
This is kind of urgent, so please help if you can :)

Thank you

[michaelcourcy]

I guess you've double check that seam-ui.jar is available on the classpath when you deploy the app.

May you decribe from where you called this code.

[makabrus]

jboss-seam-ui.jar is in the WEB-INF\lib folder inside the war.

I don't understand the second part of your reply :)

Thank you

[michaelcourcy]

Hum ...

I mean that if you call this code from an EJB (which I strongly suspect) the classpath is not the same, especially, jboss-seam-ui.jar is in projectDirectory/war/WEB-INF/lib but not in projectDirectory/lib.

While the classpath of your eclipse setup include jboss-seam-ui.jar, thus you cannot see the problem during dev.

Cheers

[makabrus]

It is being called as a result of an action in a seam component:

@Name("gestDocuments")
@Scope(ScopeType.SESSION)
public class GestaoDocumentsWS{
...

jboss-seam-ui.jar is in project/lib and in the WEB-INF\lib of the war archive.

This is the code:

public void createTable(){
     d = def_proxy.getDefinition(addDefName);

     dataTableGroup = new HtmlPanelGroup();
     
     List<Attribute> att = d.getAtributos();
     
     valores = new Object[att.size()];
     menu = false;
     
     Attribute aux = new Attribute();
     for(int i = 0; i < att.size(); ++i){
          aux = att.get(i);
          System.out.println(aux.getNomeAtributo() + " :: " + aux.getTipoAtributo());
          HtmlOutputText output = new HtmlOutputText();
          output.setValue(aux.getNomeAtributo());
          dataTableGroup.getChildren().add(output);
     
          if(aux.isTipoMenu()){
               System.out.println("TIPO MENU");
               GestaoTiposService s = new GestaoTiposService();
               GestaoTipos p = s.getGestaoTiposPort();
          
               selections = p.getValoresTipo(aux.getTipoAtributo());

               //menu = true;
               
//               HtmlSelectOneMenu select = new HtmlSelectOneMenu();
//               select.setValueExpression("value", createValueExpression("#{gestDocuments.selection}", String.class));
//                    
//               HtmlSelectItems items = new HtmlSelectItems();
//               items.setValueExpression("value", createValueExpression("#{gestDocuments.selections}", List.class));
//               items.setVar("_var");
//               
//               select.getChildren().add(items);
//               dataTableGroup.getChildren().add(select);
          }
          else{
               if(aux.getTipoAtributo().equals("DATE")){
                    HtmlCalendar myCalendar = new HtmlCalendar();
                    myCalendar.setValueExpression("value", createValueExpression("#{gestDocuments.data}", Date.class));
                    if(aux.isObrigatorio()){
                         myCalendar.setRequired(true);
                         myCalendar.setRequiredMessage(aux.getNomeAtributo() + ": Campo de preenchimento obrigatório.");
                    }
                    dataTableGroup.getChildren().add(myCalendar);
               }else{
                    HtmlInputText input = new HtmlInputText();
                    if(aux.isObrigatorio()){
                         input.setRequired(true);
                         input.setRequiredMessage(aux.getNomeAtributo() + ": Campo de preenchimento obrigatório.");
                    }
                    input.setValueExpression("value", createValueExpression("#{gestDocuments.valores[" + i + "]}", String.class));
                    dataTableGroup.getChildren().add(input);
               }                    
          }               
     }
}

And I have the same error with HtmlCalendar, although the error happens when I deploy the application while the HtmlSelectOneMenu error only happens when the action is invoked.

[makabrus]

Ok, I changed a few lines of build.xml file and now I have this:

war\WEB-INF\lib:

• jboss-seam-debug.jar


• jboss-seam-gen.jar


• jboss-seam-ioc.jar


• jboss-seam-mail.jar


• jboss-seam-pdf.jar


• jboss-seam-remoting.jar


• jboss-seam-ui.jar

ear\lib:

• antlr-runtime.jar


• commons-beanutils.jar


• commons-collections.jar


• commons-digester.jar


• commons-lang.jar


• commons-logging.jar


• core.jar


• drools-compiler.jar


• drools-core.jar


• janino.jar


• jboss-el.jar


• jbpm-jpdl.jar


• jsf-facelets.jar


• mvel14.jar


• richfaces-api.jar


• richfaces-impl.jar


• richfaces-ui.jar

HtmlCalendar works fine now, but HtmlSelectItems still gives error.

Thank you.

[blabno]

Put jboss-seam-ui in the same place as jsf-facelets.jar . Since richfaces also need to be in the same folder as jsf-facelets.jar put them all in the same place.

Read this excellent article on classloading.

[makabrus]

Everything is working now :)

Thank you both!