[MDSAL-470] Add DataObject default methods

Mon, 20 Jul 2020 17:22:09 +0000

Generated DTOs capture their Object-related mechanics in two places:

compile-time Builder implementations
runtime codec bridge implementations

Both of these should be indiscernible by the user, but there are subtle differences between them. It would be nice if we could eliminate those differences.

A way to do that is to generate defaultToString() methods, like this:

interface Foo extends DataObject {
    Bar getBar();

    static String bindingToString(final Foo obj) {
        return "Foo [bar = " + obj.getBar() + "]";
    }
}

Generated builders, as well as generated bridges can then do a simple:

@Override
public String toString() {
    return defaultToString(this);
}

which will result in the implementation being shared. This applies to hashCode()/equals() as well.

OpenDaylight JIRA

[MDSAL-470] Add DataObject default methods