design patterns

gistfile1.java

public interface XMPPActions
{
  public abstract void sendMessageWithBody(String text, String jid);
}

public class XMPPNormalActions implements XMPPActions
{
	- void sendMessageWithBody(String text, String jid)
	{
		/** código relacionado ao envio de mensagem usando chat normal **/
		System.out.println("Chat Normal");
	}
}

public class XMPPMUCActions implements XMPPActions
{
	void sendMessageWithBody(String text, String jid)
	{
		/** código relacionado ao envio de mensagem usando MUC **/
		System.out.println("MUC Chat");
	}
}


public class XMPPCore
{
	void sendMessageWithBody(String text, String jid, XMPPActions action)
	{
		action.sendMessageWithBody(text, jid);
	}
}

class ChatNormal {
	public static void main(String[] args) {
		XMPPCore core = new XMPPCore();
		XMPPNormalActions action = new XMPPNormalActions();
		
		core.sendMessageWithBody("aí dentro", "[email protected]", action);
	}
}

class MUCChat {
	public static void main(String[] args) {
		XMPPCore core = new XMPPCore();
		XMPPMUCActions action = new XMPPMUCActions();
		
		core.sendMessageWithBody("aí dentro", "[email protected]", action);
	}
}