Success. I used the setAnnotationIntrospector to essentially remove the
@JsonAnyGetter():
ObjectMapper mapper = new ObjectMapper();
mapper.setAnnotationIntrospector(new JacksonAnnotationIntrospector() {
@Override
public Boolean hasAnyGetter(final Annotated m) {
return false;
}
});
On Wed, Aug 16, 2023 at 8:19 AM Ken Hancock <hancoc...@gmail.com> wrote:
> I think so, but that was my original question -- I couldn't figure out how
> to customize the master to drop that field.
>
> On Tuesday, August 15, 2023 at 9:15:49 PM UTC-4 Joo Hyuk Kim (Vince) wrote:
>
>> There was similar issue in jackson-databind
>> <https://github.com/FasterXML/jackson-databind/issues/1376> Github , but
>> the issue is per-class declaration usecase.
>>
>> If we can have a differently configured mapper, how about....
>>
>> 1. Copy the global mapper via `mapper.copy()`
>> 2. Add custom de/serializer to the new mapper from (1)
>> 3. The custom de/serializer from (2) will handle de/serialization for
>> specific cases?
>>
>> ... this, might work?
>> On Wednesday, August 16, 2023 at 3:59:26 AM UTC+9 Ken Hancock wrote:
>>
>>> I can't remove the @JsonAnySetter and @JsonAnyGetter as
>>>
>>> (1) those are generated automatically from the schema
>>> (2) in the nominal use case I want to preserve the additional properties
>>>
>>> It's only in one special case where I'm sending data to an external
>>> system that I need to strip them off, hence I'd like to be able to
>>> configure that at runtime via a differently configured mapper.
>>>
>>> On Tuesday, August 15, 2023 at 5:30:35 AM UTC-4 Joo Hyuk Kim (Vince)
>>> wrote:
>>>
>>>> > if I drop on...
>>>>
>>>> Though I am not sure what you mean by "dropping on", but as far as I
>>>> understood....
>>>>
>>>> ```java
>>>>
>>>> SimpleObject *simpleObject *= new SimpleObject();
>>>>
>>>> *simpleObject*.setSingleField("onlyField");
>>>>
>>>> *simpleObject*.setAdditionalProperty("additional", "additional");
>>>>
>>>> *simpleObject*.setAdditionalProperty("remains", "remains");
>>>>
>>>> ```
>>>>
>>>> ...should serialize into `{"singleField":"onlyIfeld"}`.
>>>>
>>>>
>>>> And JSON string `{"onlyField": "someValue", "additional":
>>>> "anotherValue"}` should deserialize into an instance of `SimpleObject`
>>>> class with "onlyField" as its singleField and empty map?
>>>>
>>>> Try simply removing `@JsonAnySetter` and `@JsonAnyGetter`.
>>>>
>>>>
>>>> Hope it helps,
>>>>
>>>> thanks
>>>> On Monday, August 14, 2023 at 11:59:36 PM UTC+9 Ken Hancock wrote:
>>>>
>>>>>
>>>>> Hi Vince,
>>>>>
>>>>> If I'm understanding the implementation of mapper.convertVaue(), I
>>>>> think it doesn't matter whether it's on serialization or deserialization
>>>>> since convertValue() does both.
>>>>>
>>>>> To illustrate, let's say I have a pojo with one field and the
>>>>> anySetter/anyGetter:
>>>>>
>>>>> @JsonProperty("onlyField")
>>>>> private String onlyField;
>>>>>
>>>>> @JsonAnyGetter
>>>>> public Map<String, Object> getAdditionalProperties() {
>>>>> return this.additionalProperties;
>>>>> }
>>>>>
>>>>> @JsonAnySetter
>>>>> public void setAdditionalProperty(String name, Object value) {
>>>>> this.additionalProperties.put(name, value);
>>>>> }
>>>>>
>>>>> If I deserialize {"onlyField": "someValue", "additional":
>>>>> "anotherValue"}, I end up with a pojo with object.getOnlyField() ==
>>>>> "someValue") and object.getAdditionalProperties().get("additional") ==
>>>>> "anotherValue")
>>>>>
>>>>> Now when I call mapper.convertValue(object, MyPojo.class):
>>>>> if I drop on serialization, I end up with a serialized object of
>>>>> {"onlyField": "someValue"}
>>>>> if I drop on deserialize, I start with a serialized object of
>>>>> {"onlyField": "someValue", "additional": "anotherValue"} but end up with a
>>>>> pojo with an empty map in object.getAditionalProperties().
>>>>>
>>>>> If I can do it at either step, I'd love to know how, but either one
>>>>> will solve my current problem.
>>>>>
>>>>> Here's a gist with a sample, which currently fails:
>>>>> https://gist.github.com/hancockks/02509e5d06b0f1d95b1e3e6c4a23a9f1
>>>>>
>>>>> On Saturday, August 12, 2023 at 8:31:54 AM UTC-4 Joo Hyuk Kim (김주혁)
>>>>> wrote:
>>>>>
>>>>>> Hello Ken,
>>>>>>
>>>>>> To make things clear, a few questions.
>>>>>>
>>>>>> - Meaning of "to strip any additional properties before writing
>>>>>> an object". Are you looking to exclude `additionalProperties` only
>>>>>> during
>>>>>> serialization, but include in deserialization?
>>>>>> - Is the primary intent to generate a JSON output that does not
>>>>>> include `additionalProperties`, or is there another objective?
>>>>>> - Could you also provide a simple, reproducible example using
>>>>>> just Jackson and Java?
>>>>>>
>>>>>> Thanks,
>>>>>>
>>>>>> Joo Hyuk, Kim (Vince)
>>>>>> On Saturday, August 12, 2023 at 1:31:13 AM UTC+9 Ken Hancock wrote:
>>>>>>
>>>>>>>
>>>>>>> I have a pojo that serializes any additional properties into
>>>>>>>
>>>>>>> @JsonAnyGetter
>>>>>>> public Map<String, Object> getAdditionalProperties() {
>>>>>>> return this.additionalProperties;
>>>>>>> }
>>>>>>>
>>>>>>> @JsonAnySetter
>>>>>>> public void setAdditionalProperty(String name, Object value) {
>>>>>>> this.additionalProperties.put(name, value);
>>>>>>> }
>>>>>>>
>>>>>>> However, I have an odd use case where I want to be able to strip any
>>>>>>> additional properties before writing an object. I'm fairly sure with
>>>>>>> all of
>>>>>>> Jackson's configuration settings that I should be able to configure a
>>>>>>> mapper such that mapper.convertValue(myPojo, MyPojo.class) should be
>>>>>>> able
>>>>>>> to serialize and deserialize back again, dropping the
>>>>>>> additionalProperties
>>>>>>> when it serializes? The pojo is deeply nested and auto-generated, so
>>>>>>> I'd
>>>>>>> prefer not to hard-code having to just clear additionalProperties at
>>>>>>> each
>>>>>>> sub-object.
>>>>>>>
>>>>>>> Thanks,
>>>>>>>
>>>>>>> Ken
>>>>>>>
>>>>>> --
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