Developing GWT Components
When the GWT support is enabled, you can start developing GWT application components.
- GWT Package Structure
The standard GWT package layout facilitates differentiating the client-side code from the server-side code. The image below illustrates the structure of a standard GWT package.
- GWT root package node (1).
- Client (2). Under this node, the client-side source files and subpackages are grouped.
- Public (3). UNder this node, various static resources that can be served publicly are grouped.
- Server (4). Under this node, the server-side code and subpackages are grouped.
- GWT Module XML descriptor (5).
- GWT Module
Individual units of a GWT configuration are XML files called modules. A module bundles all the configuration settings that your GWT project needs, namely:
- Inherited modules.
- An entry point application class name; these are optional, although any module referred to in HTML must have at least one entry-point class specified.
- Source path entries.
- Public path entries.
- Deferred binding rules, including property providers and class generators.
The GWT Module XML descriptor (5) should reside in the root package of a standard project layout. IntelliJ IDEA can simply generate a GWT Module with the corresponding project structure for you.
- Entry Point
A module entry-point is any class that is assignable to
EntryPointand that can be constructed without parameters. When a module is loaded, every entry point class is instantiated and its
EntryPoint.onModuleLoad()method is called.
In this part: