Annotation for explicitly ignoring properties

[Clashsoft]

Add an annotation that flags properties for being ignored from yaml serialization. It would be placed on the getter.

Example:

class Person {
   String firstName;
   String lastName;

   String getFirstName() { ... }
   void setFirstName(String value) { ... }
   String getLastName() { ... }
   void setLastName(String value) { ... }

   @YamlIgnore // <--
   String getFullName() { return getFirstName() + getLastName() }
}

- p1: Person
  firstName: Bob
  lastName: Bobson

Instead of @YamlIgnore, there is already the java.beans.Transient annotation, which could have similar semantics.

[azuendorf]

I like the solution, where we ignore properties that have no setter, more.

[Clashsoft]

What about situations where there has to be a setter for legacy reasons (e.g. deprecated API)?