You have to setup your "change of screen" code to listen for the
onSuccess method inside you're AsynCallback.
For example
saveButton.addClickHandler(new ClickHandler(){
public void onClick(ClickEvent event){
someAsyncService.save(createObjectToSave(), new
AsyncCallback<ObjectSavedToDatabase>(){
public void onSuccess(ObjectSavedToDatabase savedObject){
///Now do your screen change logic
}
public void onFailure(Throwable throwable){
//handle exception
}
});
}
}
On Oct 18, 5:33 pm, Frédéric <[email protected]> wrote:
> Hello everybody....
>
> I need your help.
>
> Before to insert values in a database I have to check if some values
> are not in the DB.
> So I have to count the number of time this value appears in the DB.
>
> If the number of value is greater than 0, I am supposed to stay on the
> same screen.... But as we work in an asynchrone system GWT does not
> wait for the RPC response. So it goes on the next screen without
> waiting for the asynchronous result. (and the value who shall not be
> inserted in the DB is inserted).
>
> So is there someone with an idea to resolve my problem?
>
> Regards
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