Ignore JsontypeInfo

[Neha Goyal]

I have a third party class which uses JsonTypeInfo to serialize the type info into a property named data. In the serialized JSON, i do not want the type info to appear. Sadly, I don't have control over the third party class. Is there a way to ignore this field?

@JsonTypeInfo(
    use = Id.NAME,
    include = As.PROPERTY,
    property = "data"
)
public abstract class Data {

}

class TestData extends Data {

    private String name;

    //Getters and setters, constructors etc

}

TestData testData = new TestData();
testData.setName("randomName");
ObjectMapper mapper = new ObjectMapper();
String output = mapper.writeValueAsString(testData);

//output = {"data": "TestData", "name": "randomName"}
//I don't want data field

Thanks,
Neha

[da...@bakins-bits.com]

Don't know if this works, but did you try to see if a mixin will override it?  I've used them to great effect ...

[Tatu Saloranta]

Mix-ins would be the usual answer, yes.

If that does not work, sub-classing `JacksonAnnotationIntrospector`, and overriding method that looks for `@JsonTypeInfo`, to hide it, would be the way to go.

-+ Tatu +-

On Mon, Dec 28, 2015 at 6:57 PM, <da...@bakins-bits.com> wrote:

Don't know if this works, but did you try to see if a mixin will override it?  I've used them to great effect ...

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[Neha Goyal]

Had already tried MixIn, wasn't really solving my issue.

Thanks Tatu, subclassing JacksonAnnotationIntrospector and overriding method works just perfectly for me.