Support for isRequired (mandatoriness) check about jackson-dataformats-text HOT 2 CLOSED

Required-ness check would have to be added in jackson-databind, as format modules do not have information available. It is a long-standing request:

FasterXML/jackson-databind#230

As things are, checks are only implemented for one special case: Creator properties. So if you define constructor or factory method like:

@JsonCreator
public MyType(@JsonProperty(required=true) String name), ....)

verification is made. Otherwise, if only passing via setters or assigned to fields, no check is made.

Challenge in this case is simply complexity of adding explicit state and tracking for properties; added overhead, and avoiding the overhead if no checks are needed. So it is a large undertaking. Perhaps it could be implemented for 3.0: this is something many users have requested.

from jackson-dataformats-text.

Since this is covered by issue I linked to, will close this issue: I think support needs to go in databind and not dataformat modules. So closing issue here as a duplicate.

from jackson-dataformats-text.