How to, in vert.x, define a default codec for a collection?

Question

Assuming I have a class named User, can I register a codec for a collection of Users?

I tried using just this:

eb.registerDefaultCodec(List<User>::class.java, User.UserListCodec())

But it produces this error: Only classes are allowed on the left hand side of a class literal.

You can't unfortunately. You must either create a `UserList` object or simply get the message as a buffer and convert with Jackson type ref (see similar issue with WebClient https://stackoverflow.com/a/53812159/2133695). In Vert.x 4 this shall be addressed. — tsegismont, Jan 04 '19 at 09:31

score 0 · Answer 1 · answered Sep 19 '19 at 09:30

0

You could try using arrayListOf(...)

eb.registerDefaultCodec(arrayListOf<User>()::class.java, User.UserListCodec())

answered Sep 19 '19 at 09:30

munyengm

1 Answers1