3. HelloWorldSubscriber
Source code: 
HelloWorldSubscriber.java
The HelloWorldSubscriber component will
- Create a subscriber of the service
- get a reference to a component
- subscribe to the service (ie: implement the interface)
HelloWorldSubscriber is a client that receives data through the
asynchronous connection from HelloWorldPublisher. It does this
by obtaining a component object from componentFactory and subscribing
itself:
ComponentFactory.getComponent().subscribeService(
HelloWorldServiceAsynchronous.class, this, this);
Like its synchronous counterpart, HelloWorldUser,
this class represents the client side. Unlike its counterpart,
this class implements the service interface (HelloWorldServiceAsynchronous).
Through the method helloWorld(String hello), messages
from the asynchronous connection are received.
public void helloWorld (String hello) throws RemoteException
{
output(hello);
}
This class is also responsible for the display of the messages
it receives. It creates a window where received messages are displayed.
Next: Compilation
