Here are a couple of options on how to handle Jackson when the API and Java code are not perfectly aligned. The way to handle that will differ for different projects but here I want to present a few options on how to manage json while using Java interfaces.ĪPI design should not depend on the implementation technology and the best practices of interfaces and polymorphism in Java should not be abandoned into order to use an API. Provided Jackson version fetched is from 2.10-2.13. What it means is you may have other dependencies on Jackson, and the SDK will still work. The latest release supports Jackson 2.10-2.13. Using Java and json can be difficult since one requires strong typing and predefined data structure but the other allows massive amounts of flexibility. The specific version of Jackson depends on the azure-sdk version you are using. Since version 2.6: a more intuitive way is to use the .JsonProperty annotation on the field: JsonProperty(access Access.WRITEONLY) private String myField Even if a getter exists, the field value is excluded from serialization. My view is that custom deserialisation is a last resort, we should try to use annotations and keep the project simple and use custom code to solve problems that we cannot do another way. The downside is that we need to write more code with will become complex in a large project. We could even be returning an anonymous class here and not create an implementation at all if we wanted to. Using this method we could decouple the code from the json body completely as well as parse data types that would otherwise be impossible.
Now whenever Jackson needs to handle an instance of MyInterface it will use the custom deserializer.class, new MyInterfaceDeserialize ()) objectMapper.
SimpleModule deserialization = new SimpleModule () deserialization. We need to register this deserializer with Jackson. PROPERTY, property = "type", defaultImpl = MyInterfaceImpl. The default serialization of produces a number, i.e., epoch timestamp (number of milliseconds since January 1, 1970, UTC). Package import .JsonSubTypes import .JsonTypeInfo ( use = JsonTypeInfo. jackson-annotations jackson-core Always use the latest versions from the Maven central repository for jackson-databind.
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