7.9. コンポーネント駆動イベント

<components> 
  <event type="hello"> 
    <action execute="#{helloListener.sayHelloBack}"/> 
    <action execute="#{logger.logHello}"/> 
  </event> 
</components>

@Name("helloWorld") 
public class HelloWorld { 
    public void sayHello() { 
        FacesMessages.instance().add("Hello World!"); 
        Events.instance().raiseEvent("hello"); 
    } 
}

@Name("helloWorld") 
public class HelloWorld { 
    @RaiseEvent("hello") 
    public void sayHello() { 
        FacesMessages.instance().add("Hello World!"); 
    } 
}

@Name("helloListener") 
public class HelloListener { 
    public void sayHelloBack() { 
        FacesMessages.instance().add("Hello to you too!"); 
    } 
}

@Name("helloListener") 
public class HelloListener { 
    @Observer("hello") 
    public void sayHelloBack() { 
        FacesMessages.instance().add("Hello to you too!"); 
    } 
}

@Name("helloWorld") 
public class HelloWorld { 
    private String name; 
    public void sayHello() { 
        FacesMessages.instance().add("Hello World, my name is #0.", name); 
        Events.instance().raiseEvent("hello", name); 
    } 
}

@Name("helloListener") 
public class HelloListener { 
    @Observer("hello") 
    public void sayHelloBack(String name) { 
        FacesMessages.instance().add("Hello #0!", name); 
    } 
}