Java Angular 2 application utilizing the GWT compiler
Angular 2 has been wrapped around Typescript and Dart because those languages offer code generation (for component metadata).
Java has the standard Java JSR-269...
So this project is a try to integrate Angular 2 and Java via the GWT compiler in a way that is pleasant for the developper.
Demo
A demo is available here.
Instructions
Checkout this repo, then :
mvn clean install
cd angular2-gwt-sample
mvn gwt:run (or mvn jetty:run-war)
Go to your browser and it should work !
When loading the source in eclipse, don't forget to enable code generation on the angular2-gwt-sample project!
Explanation
The main application is in the Application class and is bootstrapped in the Angular sense with this line of code :
Browser.bootstrap( MyComponent_AngularComponent.get() );
Here, the MyComponent class, written by us, is used as an Angular component. The MyComponent_AngularComponent is a Java generated class embedding all the required metadatas for the Angular runtime.
And the component is implemented in the MyComponent class, which reads :
@AngularComponent(
selector = "my-app",
template = "<div>"
+ "Name of hero to add : {{name}}<br/>"
+ "<input [(ngModel)]='name'><br/>"
+ "<button (click)='onClick($event)'>Add</button>"
+ "<ul><li *ngFor='#hero of heroes'>{{ hero }}</li></ul>"
+ "</div>" )
@JsType
public class MyComponent
{
@JsProperty
private String name;
@JsProperty
private JsArray<String> heroes;
public MyComponent()
{
name = "Arnaud";
heroes = JsArray.of( new String[] { "Windstorm", "Bombasto", "Magneta", "Tornado" } );
}
@JsMethod
private void onClick()
{
heroes.push( name );
}
}
This is quiet straight-forward, and the class in the code contains comments so that you can understand everything that is going on...