gistfile1.java

public class MainActivityModel
{

  public StringObservable message = new StringObservable();
	
	public MainActivityModel()
	{
		message.set("");
	}
	
	public Command hello = new Command()
	{		
		@Override
		public void Invoke(View arg0, Object... arg1)
		{			
		}
	};
	
}