http://stackoverflow.com/questions/31056215/how-to-access-default-jackson-serialization-in-a-custom-serializer
2017. március 21., kedd 9:16:17 UTC+1 időpontban Zsolt Balanyi a következőt
írta:
>
> 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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