Seems that the onAddButtonClicked and onItemClicked methods perform some actions that involve other Presenters/Views that listen to those kinds of events. deleteSelectedContacts is just performing local changes that don´t affect other views. If there would be a different view that is showing a (for example) contact count and this view needs to know about some changes in your contacts, you would fire an event in deleteSelectedContacts.
Am Dienstag, 1. Mai 2012 15:01:20 UTC+2 schrieb Adio: > > Hi everyone, now that i am working with GWT i am facing a problem with > the event handling mechanism the first problem was ( > > http://groups.google.com/group/google-web-toolkit/browse_thread/thread/17b679b499311756/8f06531e30bf0996#8f06531e30bf0996 > > ), but when i read this article MVP II ( > https://developers.google.com/web-toolkit/articles/mvp-architecture-2 > ) - actually i read it several times - i still don't understand when u > to use EventBus mechanism and when not ? and if i have to use when u > use EventBus Handler and HandlerManage ?. > Here is what confuses me: > > public class ContactsPresenter implements Presenter, > ContactsView.Presenter<ContactDetails> { > ...... > public void onAddButtonClicked() { > eventBus.fireEvent(new AddContactEvent()); > } > > public void onDeleteButtonClicked() { > deleteSelectedContacts(); > } > > public void onItemClicked(ContactDetails contactDetails) { > eventBus.fireEvent(new EditContactEvent(contactDetails.getId())); > } > > .... > } > > Why one method fires and event and the other just do some logic witch > is defined the class ? > > Thank you all for your replies. > > the source code of the example is here : > http://google-web-toolkit.googlecode.com/files/Tutorial-Contacts2.zip -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To view this discussion on the web visit https://groups.google.com/d/msg/google-web-toolkit/-/-4L9VQklj1QJ. To post to this group, send email to google-web-toolkit@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.
