Thank you so much for your reply. I modified the request like so:
requestFactory.formRequest().findForm(1).with(fieldsList).fire(...
but now I get an UnexectedException with this message:
Could not determine getter for property value on type Field
Thanks again.
On Oct 17, 11:20 pm, Aidan O'Kelly aida...@gmail.com wrote:
When you find(), or return an object from other method through
RequestFactory on the client-side, relationships, such as a ListMyProxy
need to be explicitly retrieved, using syntax like:
requestFactory.formRequest().findForm(1).with('fieldList).fire(...
http://code.google.com/webtoolkit/doc/latest/DevGuideRequestFactory.h...
On Tue, Oct 18, 2011 at 3:52 AM, 007design 0...@007design.com wrote:
I'm trying to understand RequestFactory but having quite a difficult
time. First, one note: I'm using ORMLite for persistence, I found it
easier and simpler to learn than Hibernate so I'm hoping I can
continue to use it. Those are the @Database annotations in example
below. I've boiled down my application to a smaller amount of code.
I'm really hoping someone can take a quick look at it and tell me what
I'm doing wrong. When I try and load the application in the browser I
get a NullPointerException on response.getFieldsList(). I'm guessing
that after the Form object is fetched from the database the
connection is closed or something so calling getFieldsList() doesn't
work because the method gets more data from the database.
public class FormBuilder implements EntryPoint {
public void onModuleLoad() {
final Label label = new Label();
RootPanel.get(labelContainer).add(label);
final EventBus eventBus = new SimpleEventBus();
EntityRequestFactory requestFactory =
GWT.create(EntityRequestFactory.class);
requestFactory.initialize(eventBus);
requestFactory.formRequest().findForm(1).fire(new
ReceiverFormProxy() {
@Override
public void onSuccess(FormProxy response) {
for (FieldProxy field :
response.getFieldsList()) {
label.setText(label.getText() +
field.getName());
}
}
});
}
}
@DatabaseTable (tableName=forms)
public class Form {
public Form() {}
@DatabaseField (columnName=form_id, generatedId=true)
private Integer id;
public void setId(Integer id) { this.id = id; }
public Integer getId() { return id; }
public ListField getFieldsList() {
return Field.getFieldsList(getId());
}
public static Form findForm(Integer id) {
// Get form record from database
}
}
public class Field {
public Field() {}
@DatabaseField (columnName=field_id, generatedId=true)
private Integer id;
public void setId(Integer id) { this.id = id; }
public Integer getId() { return id; }
/**
* The form to which this field is associated
*/
private Integer formId;
public void setFormId(Integer formId) { this.formId = formId; }
public Integer getFormId() { return this.formId; }
public Form getForm() {
return Form.findForm(getFormId());
}
public static Field findField(Integer id) {
// Get field record from database
}
public static ListField getFieldsList(Integer id) {
// Get field records for db where formid = id
}
}
@ProxyFor (Form.class)
public interface FormProxy extends EntityProxy {
Integer getId();
ListFieldProxy getFieldsList();
void setId(Integer id);
void setTimestamp(Date timestamp);
}
@ProxyFor (Field.class)
public interface FieldProxy extends EntityProxy {
Integer getFormId();
Integer getId();
void setFormId(Integer formId);
void setId(Integer id);
}
@Service (Form.class)
public interface FormRequest extends RequestContext {
RequestFormProxy findForm(Integer id);
InstanceRequestFormProxy, ListFieldProxy getFieldsList();
}
@Service (Field.class)
public interface FieldRequest extends RequestContext {
RequestFieldProxy findField(Integer id);
RequestListFieldProxy getFieldsList(Integer formId);
}
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