When passing objects across RPC call’s its a good practice to declare concrete parameter types in the RPC interface. If for some reason you cannot use concrete class in the RPC interface try to be as specific as possible. This is because the GWT compiler while emitting javascript has to take into account all possible … Read more
Let me explain a bit more about exporting GWT stuff to the JS world. You have several options to do that, but I will focus on three methods. [EDITED] 0- JsInterop: GWT maintainers are working in a new feature to easily export java methods to javascript, and wrap javascript objects. The feature was very experimental … Read more
There’s a workaround: define a new Dummy class with member fields of all the types that you want to be included in serialization. Then add a method to your RPC interface: Dummy dummy(Dummy d); The implementation is just this: Dummy dummy(Dummy d) { return d; } And the async interface will have this: void dummy(Dummy … Read more
You can use Class.isArray() public static boolean isArray(Object obj) { return obj!=null && obj.getClass().isArray(); } This works for both object and primitive type arrays. For toString take a look at Arrays.toString. You’ll have to check the array type and call the appropriate toString method.
You could look at the following options. http://code.google.com/p/gwt-time/ http://code.google.com/p/goda-time/ http://github.com/mping/gwt-joda-time
I figured out how to do what I described in my question and thought I should post it for the benefit of others. The code is below. I call playByteArray and pass it a byte array containing pcm wav data. window.onload = init; var context; // Audio context var buf; // Audio buffer function init() … Read more
Program Structure This is how I did it. The Eventbus lets presenters (extending the abstract class Subscriber) subscribe to events belonging to different modules in my app. Each module corresponds to a component in my system, and each module has an event type, a presenter, a handler, a view and a model. A presenter subscribing … Read more
What I usually do in situations like this is design the webpage framework first. I’ll have a div for the header, side menu and footer. I’ll also have a div in my HTML for the main content. Example: <html xmlns=”http://www.w3.org/1999/xhtml”> <head> <meta name=”gwt:module” content=”org.project.package.Core=org.project.package.Core”> </head> <body> <!– Load the JavaScript code for GWT –> <script … Read more
Do not bind yourself to ANY of these libraries. Use Vanilla GWT to create the structure of your project. In particular, use the MVP pattern and an Event Bus. Please, see google article to know how to best design your client application with GWT: Building MVP apps After, you can use any widget of these … Read more
You can add like mentioned in a comment a ServletContextListener. public class ServerConfig implements ServletContextListener { public void contextInitialized(ServletContextEvent event) { // Do stuff on startup. } public void contextDestroyed(ServletContextEvent event) { // Do stuff on shutdown. } } Now put the new class on the server side, you also ave to register the Listener … Read more