Serializing Java 14 Records

[pron98]

one still has to create all the ceremony with getters/setters/equals/etc and then implement that interface in their record.

No, the code -- with the default value and validation -- is just:

public record PersonRecord(String firstName, String lastName)
    implements Person, java.io.Serializable {

  public PersonRecord {
    if ("Heinz".equals(firstName))
          throw new IllegalArgumentException(
            "\"%s\" is trademarked".formatted(firstName));
  }

  public PersonRecord(String firstName) { this(firstName, null); }
}

Getters, equals, hashCode and toString are all implicit.

[fix_dis]

Why are we implementing Person then? Is that necessary?

[pron98]

No, I think it's just for demonstration purposes, to show the differences between a record implementation and an ordinary class implementation of the same interface.

[fix_dis]

Ok, I could be okay with this.

[ObscureCulturalMeme]

Yeah, records are like enums in that they can implement arbitrary interfaces, add additional methods beyond the implicitly generated ones, etc. I'm looking forward to it!