#108 Consistent package naming throughout the examples

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

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * The Business Delegate pattern adds an abstraction layer between presentation and business tiers.
+ * By using the pattern we gain loose coupling between the tiers. The Business Delegate encapsulates
+ * knowledge about how to locate, connect to, and interact with the business objects that make up
+ * the application.
+ * 
+ * Some of the services the Business Delegate uses are instantiated directly, and some can be retrieved
+ * through service lookups. The Business Delegate itself may contain business logic too potentially tying
+ * together multiple service calls, exception handling, retrying etc.
+ * 
+ * In this example the client (Client) utilizes a business delegate (BusinessDelegate) to execute a task.
+ * The Business Delegate then selects the appropriate service and makes the service call.
+ *
+ */
+public class App {
+	
+	public static void main(String[] args) {
+		
+		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/business/delegate/BusinessDelegate.java

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * BusinessDelegate separates presentation and business tiers
+ *
+ */
+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/business/delegate/BusinessLookup.java

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * Class for performing service lookups
+ *
+ */
+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/business/delegate/BusinessService.java

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * Interface for service implementations
+ *
+ */
+public interface BusinessService {
+
+	void doProcessing();
+}

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

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * Client utilizes BusinessDelegate to call the business tier
+ *
+ */
+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/business/delegate/EjbService.java

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * Service EJB implementation
+ *
+ */
+public class EjbService implements BusinessService {
+
+	@Override
+	public void doProcessing() {
+		System.out.println("EjbService is now processing");
+	}
+}

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

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * Service JMS implementation
+ *
+ */
+public class JmsService implements BusinessService {
+
+	@Override
+	public void doProcessing() {
+		System.out.println("JmsService is now processing");
+	}
+}

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

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+package com.iluwatar.business.delegate;
+
+/**
+ * 
+ * Enumeration for service types
+ *
+ */
+public enum ServiceType {
+	
+	EJB, JMS;
+}