DeserializationFeature.FAIL_ON_IGNORED_PROPERTIES as annotation

Asked May 13 '20 at 18:52

Active May 13 '20 at 18:52

Viewed 1,077 times

I use jackson library and I have @JsonPOJOBuilder class for deserialize JSON. I added @JsonIgnoreProperties for ignore some fields. For example:

@Data
@EqualsAndHashCode(callSuper = true)
@ToString(callSuper = true)
@SuperBuilder
@JsonDeserialize(builder = SubClass.BuilderImpl.class)
public class SubClass extends MainClass {

    @JsonPOJOBuilder(withPrefix = "")
    @JsonIgnoreProperties({"a1", "a2"})
    static final class BuilderImpl
            extends builder<SubClass, BuilderImpl> {
    }

    public SubClass() {
        super();
    }
}

I need get throw when json with some of ignored field, such as

objectMapper.configure(DeserializationFeature.FAIL_ON_IGNORED_PROPERTIES, true);

How can I do this with annotation or, maybe, exist other variant do this in SubClass?

Thanks a lot.

asked May 13 '20 at 18:52

Lyudmila Kuzmicheva

Do you want to throw an exception when there is any unknown field in json other than ignored fields? – Smile May 14 '20 at 07:49
@Smile, Yes, i want to throw an exception when there is any unknown fields or ignored fields. – Lyudmila Kuzmicheva May 16 '20 at 14:55
Did you try `@JsonIgnoreProperties(ignoreUnknown = false)`? (Though I think this is the default behaviour) – Smile May 16 '20 at 15:21
@Smile, yes, but it didn't help :( Unknown fields throwed an exception, but ignored fields was without exception. – Lyudmila Kuzmicheva May 17 '20 at 08:31
Why do you want to throw exception on ignored fields? What's the use case? – Smile May 17 '20 at 09:45
@Smile, I need for ignored fields same behavior, such as with unknown fields. It is task requirement. – Lyudmila Kuzmicheva May 20 '20 at 08:15
You can possibly look at custom deserializer – Smile May 20 '20 at 09:15
@Smile. Thans a lot for answer) Do you mean use ObjectMapper? – Lyudmila Kuzmicheva May 20 '20 at 10:52
Check this out https://stackoverflow.com/a/19167145/1776132 – Smile May 20 '20 at 11:21

DeserializationFeature.FAIL_ON_IGNORED_PROPERTIES as annotation

0 Answers0