Hello , I have a class PersonnelrecordsDepartment
with the following fields with corresponding getters and setters
private java.lang.Integer id;
private java.lang.String departmentname;
private java.lang.Integer parentid;
I left out the getters and setters . Any the field parentid can refer
to an existing department like a recursive stuff like having a self
foreign key
Anyway the problem is that i have a dropdownlchoice for the form
<code>
public class DepartmentDropDownChoice extends DropDownChoice {
@SpringBean(name="IHRService")
private IHRService dao;
*/ /**
*
* @param id
* @param model
*/
public DepartmentDropDownChoice(String id,final IModel model){
super(id,model);
final ChoiceRenderer renderer = new
ChoiceRenderer("departmentname", "id");
setChoiceRenderer(renderer);
List<PersonnelrecordsDepartment> departments=Collections.EMPTY_LIST;
try {
departments = dao.getPersonnelrecordsDepartmentList();
} catch (GenericBusinessException ex) {
Logger.getLogger(DepartmentDropDownChoice.class.getName()).log(Level.SEVERE,
null, ex);
}
setChoices(titles);
}
</code>
and it gives this error anytime i try to save the personneldepartment object
<code>
2010-01-20 16:12:07,745 ERROR [org.apache.wicket.RequestCycle] -
<Cannot format given Object as a Number>
java.lang.IllegalArgumentException: Cannot format given Object as a Number
at java.text.DecimalFormat.format(DecimalFormat.java:487)
at java.text.Format.format(Format.java:140)
at
org.apache.wicket.util.convert.converters.AbstractNumberConverter.convertToString(AbstractNumberConverter.java:111)
at
org.apache.wicket.util.lang.PropertyResolverConverter.convert(PropertyResolverConverter.java:85)
at
org.apache.wicket.util.lang.PropertyResolver$MethodGetAndSet.setValue(PropertyResolver.java:1107)
at
org.apache.wicket.util.lang.PropertyResolver$ObjectAndGetSetter.setValue(PropertyResolver.java:588)
at
org.apache.wicket.util.lang.PropertyResolver.setValue(PropertyResolver.java:136)
at
org.apache.wicket.model.AbstractPropertyModel.setObject(AbstractPropertyModel.java:169)
at
org.apache.wicket.Component.setDefaultModelObject(Component.java:3052)
at
org.apache.wicket.markup.html.form.FormComponent.updateModel(FormComponent.java:1168)
at
org.apache.wicket.markup.html.form.Form$FormModelUpdateVisitor.component(Form.java:225)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:514)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrderHelper(FormComponent.java:493)
at
org.apache.wicket.markup.html.form.FormComponent.visitComponentsPostOrder(FormComponent.java:465)
at
org.apache.wicket.markup.html.form.Form.internalUpdateFormComponentModels(Form.java:2051)
at
org.apache.wicket.markup.html.form.Form.updateFormComponentModels(Form.java:2019)
at org.apache.wicket.markup.html.form.Form.process(Form.java:984)
at org.apache.wicket.markup.html.form.Form.process(Form.java:911)
at
org.apache.wicket.markup.html.form.Form.onFormSubmitted(Form.java:876)
at
org.apache.wicket.ajax.form.AjaxFormSubmitBehavior.onEvent(AjaxFormSubmitBehavior.java:135)
at
org.apache.wicket.ajax.AjaxEventBehavior.respond(AjaxEventBehavior.java:177)
at
org.apache.wicket.ajax.AbstractDefaultAjaxBehavior.onRequest(AbstractDefaultAjaxBehavior.java:299)
</code>
i think it has something to do with the conversion. but how do i
convert it again??
How can i solve this problem???
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