i have a simple question, let’s say I have this json Mapped this way: I was wondering if it was possible to just save an outer field in the inner object like this by using some custom setter/annotation or something: PS: using a custom deserialization is my last resort due to the complexity of the json A…
Tag: jackson
Spring, Jpa : One To Many Error when the list contains values
I want to return a Profile Object in JSON containing a list of login details associated with a social network. Everything works correctly when the “reseaux_sociaux” table is empty. For my status table I get my statuses in JSON format in my Profile object. However, when “reseaux_sociaux”…
How to compare nested JsonNode field values with Java object parameter values in DROOLS?
I’ve been trying to execute a set of rules on a request object on the basis of some set of configuration value. Below is the example on what I am trying to do: Configuration: config.json Request Class Object: policyDataToBeVerified I converted the config.json into a JsonNode object:configJson and passed…
How to deserialize JSON with @JsonCreator and @JsonGetter
I have the JSON looks like the following: and I have a class Person: I need to deserialize and serialize it, but when I’m trying to deserialize this JSON I get unexpected result. Why when I’m trying to deserialize it the @JsonGetter annotation is used for it? How can I disable @JsonGetter annotati…
Streaming large JSON from input stream efficiently in Java
In order to save memory and avoid an OOM error, I want to stream a large JSON from an input stream and extract the desired things from it. More exactly, I want to extract and save some strings from that JSON: files.content.fileContent.subList.text = “some text in file” files.content.fileContent.su…
Custom jackson deserializer only for nested class
I have a vehicle Java class defined like this: TimeWindow is defined like this: Now, the JSON I am getting, does not define latitude and longitude for the location (start and end); this information is encoded as just an array, see e.g.: How can I write a custom deserializer for just Location (same problem wit…
How to conditionally serialize a field
I want to conditionally serialize a field. I figured out how to conditionally ignore a field with But what I really want to do is to redact the field. So if I have I get Field2 is correctly ignored. But what I really want is I have another annotation, @MaskSensitiveData So what I want to do is combine them. S…
How do you restrict custom ObjectMapper serializer to specific generic type
I would like to use a custom serializer for Maps, but only if they are <String, String> maps. I attempted to register a StdSerializer<Map,String, String>> following the advice in this post like so: My Serializer looks as follows: This works fine on Map<String, String> objects, but unfortu…
format a json of a class in spring
I am new with spring and I want the json response of my class public class Mapping { public String name; public Object value; } be changed from {“name” : ‘value of field name’, “value”: ‘value of field value’} to {‘value of field name’ : ‘value…
Using Set instead of List cause “Could not write JSON: Infinite recursion” exception
I was getting the error “Could not write JSON: Infinite recursion” when trying to access the endpoint http://localhost:8080/categoryOfPermissions. I’ve researched and found various solutions here (@JsonManagedReference / @JsonBackReference, @JsonIgnore, @JsonIdentityInfo), but none of them s…