Life cycle demo

HELP.md

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+# Read Me First
+The following was discovered as part of building this project:
+
+* The original package name 'aine.springframework.sfg-di' is invalid and this project uses 'aine.springframework.sfgdi' instead.
+
+# Getting Started
+
+### Reference Documentation
+For further reference, please consider the following sections:
+
+* [Official Apache Maven documentation](https://maven.apache.org/guides/index.html)
+* [Spring Boot Maven Plugin Reference Guide](https://docs.spring.io/spring-boot/docs/2.6.4/maven-plugin/reference/html/)
+* [Create an OCI image](https://docs.spring.io/spring-boot/docs/2.6.4/maven-plugin/reference/html/#build-image)
+

src/main/java/aine/springframework/sfgdi/SfgDiApplication.java

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+package aine.springframework.sfgdi;
+
+import aine.springframework.sfgdi.controllers.*;
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.context.ApplicationContext;
+
+@SpringBootApplication
+public class SfgDiApplication {
+
+	public static void main(String[] args) {
+		ApplicationContext ctx = SpringApplication.run(SfgDiApplication.class, args);
+
+		I18nController i18nController = (I18nController) ctx.getBean("i18nController");
+		System.out.println(i18nController.sayHello());
+
+		MyController myController = (MyController) ctx.getBean("myController");
+
+		System.out.println("-------- Primary Bean");
+
+		System.out.println(myController.sayHello());
+
+		System.out.println("-------- Property");
+
+		PropertyInjectedController propertyInjectedController = (PropertyInjectedController) ctx.getBean("propertyInjectedController");
+
+		System.out.println(propertyInjectedController.getGreeting());
+
+		System.out.println("-------- Setter");
+
+		SetterBasedController setterBasedController = (SetterBasedController) ctx.getBean("setterBasedController");
+
+		System.out.println(setterBasedController.getGreeting());
+
+		System.out.println("-------- Constructor");
+
+		ConstructorInjectedController constructorInjectedController = (ConstructorInjectedController) ctx.getBean("constructorInjectedController");
+
+		System.out.println(constructorInjectedController.getGreeting());
+
+	}
+
+}

src/main/java/aine/springframework/sfgdi/controllers/ConstructorInjectedController.java

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+package aine.springframework.sfgdi.controllers;
+
+import aine.springframework.sfgdi.services.GreetingService;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Controller;
+
+@Controller
+public class ConstructorInjectedController {
+
+    private final GreetingService greetingService;
+
+    public ConstructorInjectedController(@Qualifier("constructorGreetingService") GreetingService greetingService) {
+        this.greetingService = greetingService;
+    }
+
+    public String getGreeting() {
+        return greetingService.sayGreeting();
+    }
+
+}

src/main/java/aine/springframework/sfgdi/controllers/I18nController.java

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+package aine.springframework.sfgdi.controllers;
+
+import aine.springframework.sfgdi.services.GreetingService;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Controller;
+
+@Controller
+public class I18nController {
+    private final GreetingService greetingService;
+
+    public I18nController(@Qualifier("i18nService") GreetingService greetingService) {
+        this.greetingService = greetingService;
+    }
+
+    public String sayHello(){
+        return greetingService.sayGreeting();
+    }
+}

src/main/java/aine/springframework/sfgdi/controllers/MyController.java

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+package aine.springframework.sfgdi.controllers;
+
+import aine.springframework.sfgdi.services.GreetingService;
+import org.springframework.stereotype.Controller;
+
+@Controller
+public class MyController {
+
+    private final GreetingService greetingService;
+
+    public MyController(GreetingService greetingService) {
+        this.greetingService = greetingService;
+    }
+
+    public String sayHello() {
+        return greetingService.sayGreeting();
+    }
+}

src/main/java/aine/springframework/sfgdi/controllers/PropertyInjectedController.java

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+package aine.springframework.sfgdi.controllers;
+
+import aine.springframework.sfgdi.services.GreetingService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Controller;
+
+@Controller
+public class PropertyInjectedController {
+
+    @Qualifier("propertyInjectedGreetingService")
+    @Autowired
+    public GreetingService greetingService;
+
+    public String getGreeting() {
+        return greetingService.sayGreeting();
+    }
+}

src/main/java/aine/springframework/sfgdi/controllers/SetterBasedController.java

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+package aine.springframework.sfgdi.controllers;
+
+import aine.springframework.sfgdi.services.GreetingService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Qualifier;
+import org.springframework.stereotype.Controller;
+
+@Controller
+public class SetterBasedController {
+    private GreetingService greetingService;
+
+    @Autowired
+    @Qualifier("setterGreetingService")
+    public void setGreetingService(GreetingService greetingService) {
+        this.greetingService = greetingService;
+    }
+
+    public String getGreeting() {
+        return greetingService.sayGreeting();
+    }
+}

src/main/java/aine/springframework/sfgdi/services/ConstructorGreetingService.java

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+package aine.springframework.sfgdi.services;
+
+import org.springframework.stereotype.Service;
+
+@Service
+public class ConstructorGreetingService implements GreetingService{
+    @Override
+    public String sayGreeting() {
+        return "Hello World - Constructor";
+    }
+}

src/main/java/aine/springframework/sfgdi/services/GreetingService.java

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+package aine.springframework.sfgdi.services;
+
+public interface GreetingService {
+
+    String sayGreeting();
+}