[
https://issues.apache.org/jira/browse/JOHNZON-152?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16306135#comment-16306135
]
Romain Manni-Bucau commented on JOHNZON-152:
--------------------------------------------
Hi Steven,
using an object writer is the way to do, it doesnt have to use a Map conversion
but a {type:xxxx, value:{...}} kind of model. No issue to have a built-in
converter to do that you can directly reuse but I don't think we need a
@JohnzonDynamic.
> Ability to serialize field of a type from value introspection instead of
> field introspection
> --------------------------------------------------------------------------------------------
>
> Key: JOHNZON-152
> URL: https://issues.apache.org/jira/browse/JOHNZON-152
> Project: Johnzon
> Issue Type: Wish
> Components: Mapper
> Affects Versions: 1.1.5
> Reporter: Steven Walters
> Priority: Minor
>
> In our project, we have a few types that have an Object field that is used to
> accept a few different types of objects.
> * Sometimes the field is an effective primitives (Float, Integer, Long, etc)
> * Sometimes they're Collections (List, Set)
> * Sometimes they're other custom defined objects
> Right now johnzon mapper determines the type of the field based on its
> defined type "Object" which means just about nothing. This almost always
> causes serialization issues (with default behavior) unless its null.
> We would like to have an annotation (such as @JohnzonDynamic) to indicate the
> field is dynamic and its type should be determined via introspection of the
> value, rather than the field's declared type. Similar to how a map's value is
> done.
> For simplicity, this could be considered a read-only field to avoid the
> complexity of trying to set this field to whatever data comes in during
> deserialization.
> Right now we're working around this via a custom ObjectWriter that converts
> the object to a map and then passes the map to serialization, which has some
> inconveniences of maintenance.
> Maybe other projects could see some use of this?
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
