#89 Finished the example code

business-delegate/src/main/java/com/iluwatar/App.java

@@ -3,6 +3,14 @@ package com.iluwatar;
 public class App {
 	
 	public static void main(String[] args) {
-		System.out.println("Hello World!");
+		
+		BusinessDelegate businessDelegate = new BusinessDelegate();
+		businessDelegate.setServiceType(ServiceType.EJB);
+
+		Client client = new Client(businessDelegate);
+		client.doTask();
+
+		businessDelegate.setServiceType(ServiceType.JMS);
+		client.doTask();
 	}
 }

business-delegate/src/main/java/com/iluwatar/BusinessDelegate.java

@@ -0,0 +1,17 @@
+package com.iluwatar;
+
+public class BusinessDelegate {
+	
+	private BusinessLookup lookupService = new BusinessLookup();
+	private BusinessService businessService;
+	private ServiceType serviceType;
+
+	public void setServiceType(ServiceType serviceType) {
+		this.serviceType = serviceType;
+	}
+
+	public void doTask() {
+		businessService = lookupService.getBusinessService(serviceType);
+		businessService.doProcessing();
+	}
+}

business-delegate/src/main/java/com/iluwatar/BusinessLookup.java

@@ -0,0 +1,12 @@
+package com.iluwatar;
+
+public class BusinessLookup {
+
+	public BusinessService getBusinessService(ServiceType serviceType) {
+		if (serviceType.equals(ServiceType.EJB)) {
+			return new EjbService();
+		} else {
+			return new JmsService();
+		}
+	}
+}

business-delegate/src/main/java/com/iluwatar/BusinessService.java

@@ -0,0 +1,6 @@
+package com.iluwatar;
+
+public interface BusinessService {
+
+	void doProcessing();
+}

business-delegate/src/main/java/com/iluwatar/Client.java

@@ -0,0 +1,14 @@
+package com.iluwatar;
+
+public class Client {
+
+	private BusinessDelegate businessDelegate;
+
+	public Client(BusinessDelegate businessDelegate) {
+		this.businessDelegate = businessDelegate;
+	}
+
+	public void doTask() {
+		businessDelegate.doTask();
+	}
+}

business-delegate/src/main/java/com/iluwatar/EjbService.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class EjbService implements BusinessService {
+
+	@Override
+	public void doProcessing() {
+		System.out.println("EjbService is now processing");
+	}
+}

business-delegate/src/main/java/com/iluwatar/JmsService.java

@@ -0,0 +1,9 @@
+package com.iluwatar;
+
+public class JmsService implements BusinessService {
+
+	@Override
+	public void doProcessing() {
+		System.out.println("JmsService is now processing");
+	}
+}

business-delegate/src/main/java/com/iluwatar/ServiceType.java

@@ -0,0 +1,6 @@
+package com.iluwatar;
+
+public enum ServiceType {
+	
+	EJB, JMS;
+}