Didn't know they exist. Last time I was told to use the mailing lists. On Saturday, October 19, 2024 at 9:02:48 AM UTC+3 Joo Hyuk Kim wrote:
> Actually, I think we will get more answers moving the discussion to Github > discussions. > WDYT? > > On Sat, Oct 19, 2024 at 2:00 AM [email protected] <[email protected]> wrote: > >> Perhaps Tatu can have a look? >> >> On Friday, October 18, 2024 at 11:53:37 AM UTC+3 Joo Hyuk Kim wrote: >> >>> Your implementation Does not seem too off , But not sure :/ >>> >>> 2024년 10월 18일 (금) 오후 4:06, [email protected] <[email protected]>님이 작성: >>> >>>> So @JsonMerge is not appropriate here? >>>> >>>> On Friday, October 18, 2024 at 1:47:07 AM UTC+3 Joo Hyuk Kim wrote: >>>> >>>>> > Jackson should not create any list. >>>>> >>>>> To be more specific, You do not want to create any list and ur looking >>>>> for a such feature. >>>>> >>>>> What we can do here is write a custom deserializer to do such thing >>>>> and there is already plenty references on the web >>>>> >>>>> 2024년 10월 18일 (금) 오전 4:04, [email protected] <[email protected]>님이 작성: >>>>> >>>>>> My class contains an initialized custom collection >>>>>> >>>>>> class MyClass { >>>>>> >>>>>> MyList<Integer> myList = MyList.create(); >>>>>> } >>>>>> >>>>>> where MyList is a j.u.List. When deserializing, I get an exception >>>>>> saying that there is no known deserializer for MyList ("Cannot find a >>>>>> deserializer for non-concrete List type"), which is generally >>>>>> understandable, but I already initialized it, so there's no need for >>>>>> one. >>>>>> Instead, I just want to add the items to the list. >>>>>> To demonstrate, I can add a private setter inside the class: >>>>>> >>>>>> private void setMyList(List<Integer> ints) { >>>>>> ints.forEach(MyList::add); } >>>>>> >>>>>> this works, but I don't think it should be needed. Specifically, >>>>>> Jackson should not create any list. It needs to deserialize the values >>>>>> of >>>>>> the items anyway; then instead of creating a list, add them to the >>>>>> existing >>>>>> one. It's a List, so it should know to call 'add' ('put' for map). >>>>>> >>>>>> I know there is @JsonMerge, and I thought that that's what I needed, >>>>>> but just adding it to the field doesn't work, I still get the same >>>>>> exception. Am I not understanding @JsonMerge or am I doing something >>>>>> wrong? >>>>>> >>>>>> Thanks! >>>>>> >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "jackson-user" group. >>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>> send an email to [email protected]. >>>>>> To view this discussion on the web visit >>>>>> https://groups.google.com/d/msgid/jackson-user/af74c8b0-1516-4cc8-9117-be6808cf9223n%40googlegroups.com >>>>>> >>>>>> <https://groups.google.com/d/msgid/jackson-user/af74c8b0-1516-4cc8-9117-be6808cf9223n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>>> . >>>>>> >>>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "jackson-user" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to [email protected]. >>>> >>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/jackson-user/4446a07a-f0b8-4bad-8442-3571d0a328d3n%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/jackson-user/4446a07a-f0b8-4bad-8442-3571d0a328d3n%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "jackson-user" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/jackson-user/66dc4a78-c343-42b0-85e5-77a78bb2f3bbn%40googlegroups.com >> >> <https://groups.google.com/d/msgid/jackson-user/66dc4a78-c343-42b0-85e5-77a78bb2f3bbn%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "jackson-user" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/jackson-user/31edd985-5914-4bd5-8dad-df916ace76ccn%40googlegroups.com.
