I have a class that looks like this:
public class UserBean extends BaseBean {
private String username;
private Long userId;
private Center center;
private String phone;
private Contractor contractor;
private String project;
private boolean userContractor;
private String contractNumber;
... getter/setter methods and business methods...
and a corresponding User class that looks pretty much the same as the
UserBean class.
The UserBean's properties are all saved into an actual User object by a
saveAction method.
I'd like to be able to set the UserBean's center.centerId property so that
when the properties are copied the center object is copied as well.
In my JSP I have:
<h:selectOneMenu id="center" value="#{userBean.center.centerId}">
<f:selectItems value="#{applicationBean.centerSelectItems}"/>
</h:selectOneMenu>
However it seems that center is always null so I am getting an error, what
is the proper way to ensure that center has been instantiated before the
page is rendered?
I have tried:
private Center center = new Center();
but this produces the error:
net.sf.hibernate.PropertyValueException: not-null property references a null
or transient value:
gov.nasa.msfc.repository.submittal.model.businessobject.User.center
showing me that center is still null.
Here is UserBean's saveAction method:
public String saveAction ()
{
String result = "fail";
try
{
User user = UserBuilder.createUser ( this );
this.serviceLocator.getUserService ().save ( user );
result = "success";
}
catch ( UserException ex )
{
String msg = "Could not save/udpate user";
FacesUtils.addErrorMessage ( msg + ":Internal Error" );
}
return result;
}
// UserBuilder.createUser is simply a static method that copies properites
from this bean to a new instance of User.
Thanks,
-Mark
