How to diff immutable record types?

[DanielJonesEB]

I want to diff immutable record types (classes with public final members, and object identity dependent on all such members). I don't need to merge, I just need to see what the differences are between them.

I've looked at Instrospector and the StandardIntrospector implementation, but TypeInfo requires accessors to be provided, which my classes don't have.

public class Service
{
    public final String name;
    public final Map<String, String> credentials;

    public Service(String name, Map<String, String> credentials)
    {
        this.name = name;
        this.credentials = Collections.unmodifiableMap(credentials);
    }

    //hashCode and equals on both properties
}

[SQiShER]

I'm afraid there isn't a built-in way to deal with getter-less classes (yet). However, although I didn't try it, I think all you need to do is to implement a simple PropertyAwareAccessor that is able to deal with fields and then make use of it in you own Introspector implementation. Feel free to ask any questions that come up along the way! I'd be happy to help you make it work!

[DanielJonesEB]

Thanks for getting back to me and for the suggestion. I ended up using Javers instead, as whilst it's a bit heavyweight for my needs, it supports this use-case out of the box.