Java TypeNameIdResolver-class And Method Code Example

Here is an example of using the TypeNameIdResolver class in the com.fasterxml.jackson.databind package in Java:

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.jsontype.impl.TypeNameIdResolver;

public class Example {
    public static void main(String[] args) throws Exception {
        ObjectMapper mapper = new ObjectMapper();
        TypeNameIdResolver idResolver = new TypeNameIdResolver(mapper.getTypeFactory(), TypeNameIdResolver.class);
        // Use idResolver to resolve class names to ids and vice versa

This example creates an instance of the ObjectMapper class, which is used to convert between Java objects and JSON. It also creates an instance of the TypeNameIdResolver class, which can be used to resolve class names to ids and vice versa. TypeNameIdResolver generates a full class name as the id and also it can take a custom property name to be used as type information.

This is a basic example. In real world usage, you'll need to register the TypeNameIdResolver to ObjectMapper using mapper.registerSubtypes(..) or mapper.enableDefaultTyping(..) method and use it while deserializing and serializing the object.

Also, you can pass a custom property name as the second argument. This property name will be used to store the class name during serialization and to extract the class name during deserialization.