Hi All,
I'm working on getting an example together and I am having issues
setting up the injectors for the code you've suggested above (Amir,
david, Aodhagán). So far, I've setup everything as you've suggested
for the AppActivityMapper, AppPlaceFactory, AppPlaceHistoryMapper,
Places and ActivityPlace. However, I am obviously missing something
in the GIN module itself (apologize in advance, just started to use
GIN).
The pages are changing successfully, but no history token changes are
made.
The error i get is:
Caused by: com.google.gwt.event.shared.UmbrellaException: One or more
exceptions caught, see full set in UmbrellaException#getCauses
at
com.google.gwt.event.shared.SimpleEventBus.doFire(SimpleEventBus.java:
214)
Caused by: java.lang.NullPointerException: null
at
com.google.gwt.sample.contacts.client.mvp.AppPlaceHistoryMapperImpl.getPrefixAndToken(AppPlaceHistoryMapperImpl.java:
24)
at
com.google.gwt.place.impl.AbstractPlaceHistoryMapper.getToken(AbstractPlaceHistoryMapper.java:
66)
at
com.google.gwt.place.shared.PlaceHistoryHandler.tokenForPlace(PlaceHistoryHandler.java:
156)
at com.google.gwt.place.shared.PlaceHistoryHandler.access
$1(PlaceHistoryHandler.java:151)
at com.google.gwt.place.shared.PlaceHistoryHandler
$1.onPlaceChange(PlaceHistoryHandler.java:103)
at
com.google.gwt.place.shared.PlaceChangeEvent.dispatch(PlaceChangeEvent.java:
57)
at
com.google.gwt.place.shared.PlaceChangeEvent.dispatch(PlaceChangeEvent.java:
1)
at
com.google.gwt.event.shared.SimpleEventBus.doFire(SimpleEventBus.java:
204)
at
com.google.gwt.event.shared.SimpleEventBus.fireEvent(SimpleEventBus.java:
103)
at
com.google.gwt.place.shared.PlaceController.goTo(PlaceController.java:
120)
at com.google.gwt.sample.contacts.client.activity.ContactActivity
$1.onClick(ContactActivity.java:94)
My NewContactPlace is as follows:
public class NewContactPlace extends
ActivityPlace<EditContactActivity> {
@Inject
public NewContactPlace(EditContactActivity activity) {
super(activity);
GWT.log("NewContactPlace.ActivityProvider: " + activity);
}
private String placeName;
public void setPlaceName(String token) {
this.placeName = token;
}
public String getPlaceName() {
return placeName;
}
@Prefix("new")
public static class Tokenizer implements
PlaceTokenizer<NewContactPlace> {
// Since the place is injectable, we'll let Gin do the
construction.
private final Provider<NewContactPlace> placeProvider;
@Inject
public Tokenizer(Provider<NewContactPlace> placeProvider) {
this.placeProvider = placeProvider;
GWT.log("NewContactPlace.Tokenizer.PlaceProvider: " +
placeProvider);
}
@Override
public String getToken(NewContactPlace place) {
return place.getPlaceName();
}
@Override
public NewContactPlace getPlace(String token) {
NewContactPlace place = placeProvider.get();
place.setPlaceName(token);
return place;
// If place requires any more work, do it here.
}
}
}
However, (and I'm pretty sure here's the problem, is my GINModule:
@Override
protected void configure() {
// bind the EventBus
bind(EventBus.class).to(SimpleEventBus.class).in(Singleton.class);
bind(PlaceController.class).to(InjectablePlaceController.class).in(Singleton.class);
// bind the mapper
bind(ActivityMapper.class).to(AppActivityMapper.class).in(Singleton.class);
// bind the views
bind(IContactsViewDisplay.class).to(ContactsView.class);
bind(IEditDisplay.class).to(EditContactView.class);
}
I've not used providers before, so I'm guessing I need to define a
provider? or is there somewhere else I might be missing.
Any help would be much appreciated.
Cheers
Moe
On Oct 22, 11:58 pm, Thomas Broyer <t.bro...@gmail.com> wrote:
> On 22 oct, 19:50, David Chandler <drfibona...@google.com> wrote:
>
> > Hi Richard,
>
> > We're still working on an official story for how best to use runAsync
> > with Activities and Places. In the mean time, feedback on your
> > experiences is welcome. GWT's AsyncProxy class or the AsyncProvider in
> > GIN trunk look promising as ways to wrap Activity creation with a
> > runAsync() call.
>
> > If view creation is initiated only through the corresponding Activity,
> > then wrapping Activity creation with runAsync() will defer loading of
> > the view code also, and you'll be able to see this in the SOYC report.
>
> > References:
> >http://code.google.com/webtoolkit/doc/latest/DevGuideCodeSplitting.html
> >http://code.google.com/webtoolkit/doc/latest/DevGuideCompileReport.html
>
> Just so it doesn't get forgotten, see
> alsohttp://code.google.com/p/google-web-toolkit/issues/detail?id=5129
> I implemented the proposed ActivityAsyncProxy (see comment #4, as a
> concrete class, passing a GIN Provider<Activity> to the constructor)
> as a proof-of-concept but haven't used it yet (to tell the truth, not
> even tested it), so I cannot comment on how well/bad it works.
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