I'm part of a project using JBoss Seam as the main component and have been struggling to get a simple select-box to work.
Pretty soon I've found out that a Converter was needed which ended up in the following solution:
My conveter's interface
@Local
public interface MyConverter extends Converter {
}My converter implementation @Stateless
@Name("ConvertARO")
public class AroConverter implements MyConverter {
@PersistenceContext
private EntityManager em;
@Logger
private Log log;
public Object getAsObject(FacesContext ctx, UIComponent component, String value) {
log.info("AroConverter:getAsObject() :: " + value);
ARO aro = null;
if ((value==null)||value.length()==0) {
throw new ConverterException("Error 1 !");
}
for (Iterator iter = em.createQuery("from ARO").getResultList().iterator(); iter.hasNext();) {
ARO a = (ARO) iter.next();
if(a.getName().equals(value)){
aro = a;
break;
}
}
if (aro==null) {
aro = new ARO();
aro.setAro_id(0);
}
log.info(aro);
return aro;
}
public String getAsString(FacesContext ctx, UIComponent component, Object value) {
if((ARO)value != null)
return ((ARO)value).getName();
else
return "";
}
}Excerpt from my xhtml page <h:selectOneMenu id="selAro" value="#{selAcl.aro}" converter="#{ConvertARO}">
<f:selectItems value="#{stockAction.axoRights}"/>
</h:selectOneMenu>When I started working on this problem, I created the converter without the interface, which seemed to work. But sometimes JBoss freaks ut, telling me that the converter cannot be found when rendering. I solved that part with the interface. Now It renders OK, but when I try to submit information to an action class, JBoss gives me the error message: java.lang.ClassNotFoundException:
No ClassLoaders found for: com.test.actions.MyConverter Why do I get this error?
//Fredric
