I am having problems with JSF 1.1_01 (MyFaces 1.1.1).
I have created page called page.jsp as follows:
. . . .
<h:selectOneMenu value="#{test.selectedDevice}" id="deviceTypeList"
styleClass="dropdown">
<f:selectItems value="#{test.deviceTypes}" />
<ajax:support action="#{test.loadDevice}" event="onchange"
reRender="t2,t3,t4,t5"/>
</h:selectOneMenu>
. . . .
It is uses managed bean called TestBean.java:
public class TestBean {
public List getDeviceTypes(){
logger.info(" *** In getDeviceTypes Backing Bean*** ");
List<SelectItem> models = new ArrayList<SelectItem>();
List<SelectItem> deviceTypes = new ArrayList<SelectItem>();
// Gets Data from Hibernate Query . It returns List of Device Types
models = deviceManager.getDeviceTypes();
logger.info(" *** DeviceType List Size=*** "+models.size());
for (Iterator it = models.iterator(); it.hasNext();) {
System.out.println("Inside For Loop Iterator size="+models.size());
Object[] row = (Object[]) it.next();
System.out.println("ID: " + row[0]); // prints data
System.out.println("Name: " + row[1]); //prints data
// Below line results in error : does not have a Converter
deviceTypes.add(new SelectItem(row[0],row[1]+""));
}
return deviceTypes;
}
}
During page rendering, page.jsp throws following exception:
javax.servlet.ServletException: Value is no String and component
_id0:deviceTypeList does not have a Converter
Is this bug with MyFaces 1.1.1 or I have made something wrong?
I am a newbie & didnt know much about Converters hence read some examples
from the web stating to have getObject() & getString methods . So i added
below Class but not sure how to align with page.jsp page.
public class DeviceTypeConverter implements Converter{
protected final Log logger = LogFactory.getLog(getClass());
public Object getAsObject(FacesContext facesContext, UIComponent
uiComponent, String s) throws ConverterException {
DeviceDao dao = new DeviceDao();
return dao.getdeviceTypes().(Long.decode(s));
}
public String getAsString(FacesContext facesContext, UIComponent
uiComponent, Object o) throws ConverterException {
if(o!= null)
logger.debug(o.toString());
try {
if((o!= null) && (o instanceof DeviceType)){
DeviceType dt = (DeviceType) o;
return ""+dt.getId();
}
else
return "0";
} catch (Exception e) {
logger.error(e);
throw new ConverterException();
}
}
}
Any pointers/suggestions on how to write a Converter & help in resolving the
error will be highly appreciated
Regards
Bansi
--
View this message in context:
http://www.nabble.com/JSF-Dropdown-Converter-Issues-tf2955964.html#a8269091
Sent from the MyFaces - Users mailing list archive at Nabble.com.
