In this post under Spring Core, I will explain with example the purpose and how to use “@Autowired” annotation. Till now in all my previous posts, you have seen how to create a bean. We can create a bean using either “@Bean” or “@Component” annotation. I have also showed you how to wire one “@Bean”…… Continue reading Example of @Autowired (setter injection approach 1)
Category: Spring Framework
Using @Profile on @Component annotated beans
In the previous post under Spring Core, I showed how to use “@Profile” annotation with “@Configuration” and “@Bean” annotation. In this post under Spring Core, I will show with example how to use “@Profile” annotation with “@Component” annotation. In previous post I also mentioned that “@Profile” annotation can be used with “@Configuration”, “@Bean”, and “@Component”…… Continue reading Using @Profile on @Component annotated beans
Using @Profile on @Beans annotated beans
In the previous post under Spring Core, I showed how to use “@Profile” annotation with “@Configuration” annotation. In this post under Spring Core, I will show with example how to use “@Profile” annotation with “@Bean” annotation. In previous post I also mentioned that “@Profile” annotation can be used with “@Configuration”, “@Bean”, and “@Component” annotation. The…… Continue reading Using @Profile on @Beans annotated beans
Using @Profile with @Configuration classes
In this post under Spring Core, I will show with example how to use “@Profile” annotation for “@Configuration” annotated classes. In the real world scenario, whenever we develop an application, we develop with a goal that it should perform according to agreed functional requirements, regardless of whether the application is running in production or testing…… Continue reading Using @Profile with @Configuration classes
Changing scopes to @Component annotated class
In this post under Spring Core, I will show with example how to change the scope of class annotated with “@Component” annotation. By default whenever we annotate a class with “@Component” annotation the scope of the bean is set to “singleton”. We can change this by the help of “@Scope” annotation which is also applied…… Continue reading Changing scopes to @Component annotated class
Wiring together @Bean annotated beans using setter approach
In this post under Spring Core, I will explain with example how to wire two beans annotated with @Bean annotation using setter methods. For our example lets take the below two classes. Bean1 package package12; public class Bean1 { private Bean2 bean2; public Bean1() { } public void setBean2(Bean2 bean2) { this.bean2 = bean2; }…… Continue reading Wiring together @Bean annotated beans using setter approach
Changing scopes of @Bean annotated beans
In this post under Spring Core, I will explain with example how to change scopes of Spring beans annotated with “@Bean” annotation. By default the “@Bean” annotated beans have singleton scope. Which means that whenever a dependee bean asks for a reference to dependent bean and the dependent bean scope is “singleton” then Spring makes…… Continue reading Changing scopes of @Bean annotated beans
Wiring together @Bean annotated beans using constructor approach
In this post under Spring Core, I will explain with example how to wire two beans annotabed with @Bean annotation using constructor. For our example lets take the below two bean classes. Bean1 package package10; public class Bean1 { private Bean2 bean2; public Bean1(Bean2 bean2) { System.out.println(“Hello its Bean1”); this.bean2 = bean2; } } As…… Continue reading Wiring together @Bean annotated beans using constructor approach
Using @DependsOn with @Component annotation
In this post under Spring Core, I will show with example how to use “@DependsOn” annotation to indicate dependencies between two beans marked with “@Component” annotation. For our example we have two beans “Bean1” and “Bean2” and both are annotated with “@Component” annotation. Now to declare that “Bean2” is dependent on “Bean1”, we annotate the…… Continue reading Using @DependsOn with @Component annotation
Giving custom name to @Component annotated beans
In this post under Spring Core, I will show with example how to give custom names to classes annotated with “@Component” annotation. By default when we annotate a class with “@Component” annotation, the name of the bean will be created from the class name, where the first letter of the class name will be lowercase.…… Continue reading Giving custom name to @Component annotated beans
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