CODEWITHSUNDEEP
javaspringdependency-injectionannotationsspring-4
jscherman
jscherman

Reputation: 6179

how to set default beans init-method by annotations in spring 4?

i am learning using Spring 4 by Java annotations, and i could not find how to set default init-method to all beans that belong to specific configuration, without adding the @PostContruct annotation to initialize method at all clases and neither making them implement the InitializeBean interface... I just want to do something like this:

<beans default-init-method="init">

    <bean id="blogService" class="com.foo.DefaultBlogService">
    </bean>

    <bean id="anotherBean" class="com.foo.AnotherBean">
    </bean>

</beans>

So, i want to do exactly this by Java annotations, i want to set default beans configurations on bean's configuration container. Is that possible? Regards

EDIT: What i actually want to do is tell spring to run the "initialize" method by default on all beans that i create inside a BeansConfigurations class. It means, put some annotation or something that establish that all contained beans will run this initialize method by default. But as i said before, i don't want to touch beans classes, i mean, i don't want to add @PostConstructor annotation to every initialize method for each bean class and i don't want every bean to implements the InitializeBean interface either

Upvotes: 5

Views: 5143

Answers (2)

Dino Tw
Dino Tw

Reputation: 3321

If I understand your question correctly, you want every bean to run its init method(if it has one) without declaring all of them in the configuration file. I think your own post has the answer already, it's default-init-method="init". In side the bean classes you want to initialize, implement a public void init() method in each of them. They will all be called when the application starts up.

Upvotes: 0

geoand
geoand

Reputation: 63991

You could do the following:

@Configuration
public class SomeConfig {

   @Bean(initMethod = "initMethodName")
   public SomeBeanClass someBeanClass() {
      return new SomeBeanClass();
   }
}

You would repeat that for every bean you want to call initMethodName on.

You could take it one step further and implement a meta-annotation like

@Bean(initMethod = "initMethodNAme")
public @interface MyBean {
}

and simply use @MyBean instead of @Bean(initMethod = "initMethodName") in SomeConfig

Upvotes: 6

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