Lombok @builder on a class that extends another class

Question

I have two classes Child extends Parent. I need to put @Builder annotation on the classes such that I do not need to create the builder my self.

Answer 1

See in https://blog.codecentric.de/en/2016/05/reducing-boilerplate-code-project-lombok/ (@Builder and inheritance part)

Adjusted to your classes

@AllArgsConstructor
public class Parent {
  private double d;
  private float e;
}

public class Child extends Parent {
  private String a;
  private int b;
  private boolean c;

  @Builder
  public Child(String a, int b, boolean c, double d, float e) {
    super(d, e);
    this.a = a;
    this.b = b;
    this.c = c;
  }
}

With this setup

Child child = Child.builder().a("aVal").b(1000).c(true).d(10.1).e(20.0F).build();

works correctly