GWT in Action, Second Edition

8.5. Using custom Locators and ServiceLocators (the “long way”)

Let’s recap some important points before we move forward. First, in section 8.3.3 we provided a list of the Contact Locator methods that had to be contained within your domain class. These were a no-arg constructor, a static findContact(id) method, a getId() method, and a getVersion() method. In addition we also created several service methods to the domain class that implemented our server-side functionality. These service methods include count(), persist(), and remove(). In this section we’ll move both sets of methods out of our domain class.

You may have a lot of valid reasons for wanting to do this. Perhaps your class can’t have a no-arg constructor, perhaps you don’t have ...