This article points out exactly the fact, that the usage of
BeanSerializerModifier makes in unnecessary to use the annotation!
So I would happily contribute to make the @JsonSerialize smarter. :)
BR, Zsolt
2017. március 21., kedd 8:25:51 UTC+1 időpontban Zsolt Balanyi a következőt
írta:
>
> Hi!
>
> This is exactly what I was wondering... if there is a way to automate the
> default serializer injection, when the custom serializer gets detected.
> I am also willing to contribute to the code, if I am provided some
> guidance.
>
> BR, Zsolt
>
> 2017. március 20., hétfő 21:24:27 UTC+1 időpontban Tatu Saloranta a
> következőt írta:
>>
>> Good luck! That approach is used quite a lot so it should work fine.
>> Note, too, that it may be combined with ContextualSerializer if you do
>> need to access annotations.
>> In fact you can use `createContextual()` sometimes to simply decide if
>> override is needed at all; if not, return default serializer from that
>> method and you are good to go (but if so, remember to delegate call).
>>
>> It would be great to find better ways to allow such "partial"
>> overrides, in a more convenient way.
>> But until then, Bean(De)SerializerModifier is the way to go.
>>
>> -+ Tatu +-
>>
>>
>> On Mon, Mar 20, 2017 at 1:08 PM, Zsolt Balanyi <zsolt....@gmail.com>
>> wrote:
>> > Hi!
>> >
>> > OK, thanks, then I'll go that way!
>> >
>> > BR, Zsolt
>> >
>> > 2017. március 20., hétfő 20:13:25 UTC+1 időpontban Tatu Saloranta a
>> > következőt írta:
>> >>
>> >> This can not be done from annotation-based serializer: it will
>> >> override default logic.
>> >> The only way to access what would otherwise be created/used as the
>> >> standard serializer is to register `BeanSerializerModifier`, and
>> >> override handling of `modifySerializer`.
>> >>
>> >> -+ Tatu +-
>> >>
>> >>
>> >> On Mon, Mar 20, 2017 at 11:58 AM, Zsolt Balanyi <zsolt....@gmail.com>
>> >> wrote:
>> >> > Hi!
>> >> >
>> >> > What I meant is that I would like to get (or create ) the default
>> >> > Jackson
>> >> > Serializer for the object being serialized, and store as default.
>> >> > Then I could implement serialize as follows:
>> >> >
>> >> > @Override
>> >> > public void serialize(Object o, JsonGenerator jg, SerializerProvider
>> sp)
>> >> > throws IOException {
>> >> > doMyStuff...
>> >> > default.serialize(o, jg, sp);
>> >> > }
>> >> >
>> >> > The challenge here is that only a no-arg constructor is called for
>> the
>> >> > serializer if the serializer is used in annotation like this:
>> >> > @JsonSerialize(using = UIElementSerializer.class)
>> >> >
>> >> > BR, Zsolt
>> >> >
>> >> > 2017. március 20., hétfő 19:21:29 UTC+1 időpontban Tatu Saloranta a
>> >> > következőt írta:
>> >> >>
>> >> >> Not 100% sure I understand the question, but if you want to access
>> >> >> information about annotations on property, from your custom
>> >> >> serializer, you need to implement `ContextualSerializer`, and then
>> its
>> >> >> `createContextual()` gets called with `BeanProperty`.
>> >> >> `BeanProperty` has accessors for annotation directly; or, you can
>> then
>> >> >> call `AnnotationIntrospector` (accessible from `SerializerProvider`
>> >> >> that is also passed).
>> >> >>
>> >> >> -+ Tatu +-
>> >> >>
>> >> >>
>> >> >> On Mon, Mar 20, 2017 at 5:26 AM, Zsolt Balanyi <zsolt....@gmail.com>
>>
>> >> >> wrote:
>> >> >> > Hi All!
>> >> >> >
>> >> >> > But what can I do when I want to use annotation, and I don't have
>> >> >> > access
>> >> >> > to
>> >> >> > the mapper?
>> >> >> > Eg:
>> >> >> >
>> >> >> > @JsonSerialize(using = ASerializer.class)
>> >> >> > public class AClass {
>> >> >> > ...
>> >> >> > }
>> >> >> >
>> >> >> > BR, Zsolt
>> >> >> >
>> >> >> > 2015. június 23., kedd 16:18:36 UTC+2 időpontban Tim Dudgeon a
>> >> >> > következőt
>> >> >> > írta:
>> >> >> >>
>> >> >> >> Hi,
>> >> >> >>
>> >> >> >> I'm writing a custom serialiizer, extending StdSerializer.
>> >> >> >> In the
>> >> >> >> public void serialize(MoleculeObject mo, JsonGenerator jg,
>> >> >> >> SerializerProvider sp)
>> >> >> >> method I need to be able to access the default json
>> serialization
>> >> >> >> mechanism, but I don't see how to do this.
>> >> >> >> I can't call super.serialize() as its abstract, and using
>> >> >> >> JsonGenerator.writeObject() or
>> >> >> >> SerializerProvider.defaultSerializeValue()
>> >> >> >> end up calling my custom serialize() method and end up with
>> stack
>> >> >> >> overflow.
>> >> >> >>
>> >> >> >> How should I be doing this?
>> >> >> >>
>> >> >> >> Tim
>> >> >> >
>> >> >> > --
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