Use @Before in service for all methods in Java-CodePudding

I am implementing a service for my controller in java. This service implements an interface with several methods, where each of them performs a different logic. However, they also have a common logic (they must call another @service). I would like to know if there is any way to refactor this, that is, remove that common logic that they have to a method in the class of my service that is executed only once, at the beginning.

I'm looking for something similar to the following:

public class myClass implements myInterface{

private String stringToFill="";

@Before
public doSomeLogig(){
   // call another service
   stringToFill = "filled";
}

public getAll(){
   ...
   //here I should use stringToFill, with value 'filled'
}
public getId(){
   //here I should use stringToFill, with value 'filled'
   ...
}
public create(){
   //here I should use stringToFill, with value 'filled'
   ...
}

}

CodePudding user response：

There is a spring lifecycle annotation called as @PostConstruct, write a method in the class and add all the one time execution logic in this method and annotate it with the @PostConstruct annotation and spring would call this method automatically once the bean has been initialized.

CodePudding user response：

Using AOP you can call a method in lots of different scenarios including the one you described. Here is Link to Spring AOP documentation Spring AOP

@Aspect
public class BeforeExample {

  @Before("com.xyz.myapp.SystemArchitecture.dataAccessOperation()")
  public void doAccessCheck() {
    // ...
  }

}

You can Also define a custom annotation like @Before to do the magic for you.