[SOLVED] Shortcut to generate setters with `this` as return type

Shortcut to generate setters with `this` as return type

Let's say I have a class HomeWork and is annotated with @Builder

@Data
@Builder
@FieldDefaults(level = AccessLevel.PRIVATE)
class HomeWork {
    List<Question> questions;
    double totalMarks;

    double receivedMarks;
    boolean passed;
}

I can create the instance of HomeWork using builder:

...

HomeWork homeWork = HomeWork.builder()
.questions(List.of(questions))
.totalMarks(100.0)
.build()

Now if I have to update the receivedMarks and passed properties then I will have to call the setters of them like this:

homeWork.setReceivedMarks(85.0);
homeWork.setPassed(true);

This is fine but could be better, if I had setters which would return this so we could chain the setters:

public HomeWork setReceivedMarks(double receivedMarks) {
   this.receivedMarks = receivedMarks;
   return this;
}
...

setReceivedMarks(85).setPassed(true);

So I wanted to know if there is any shortcut way to generate such setters in Intellij IDE? If not then is there any other way to chain the setters?

Solution

You can use Lombok annotation Accessors, which accept parameter chain=true which will result in setters returning this variable.

Example:

@Data
@Builder
@FieldDefaults(level = AccessLevel.PRIVATE)
@Accessors(chain = true)
class HomeWork {
     ...

}