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Inheritance with Jackson 1. Overview In this article, we’ll have a look at working with class hierarchies in Jackson. Two typical use cases are the inclusion of subtype metadata and ignoring properties inherited from superclasses. We’re going to describe those two scenarios and a couple of circumstances where special treatment… Continue Reading jackson-inheritance
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Working with Tree Model Nodes in Jackson 1. Overview This tutorial will focus on working with tree model nodes in Jackson. We’ll use JsonNode for various conversions as well as adding, modifying and removing nodes. 2. Creating a Node The first step in creation of a node is to instantiate… Continue Reading jackson-json-node-tree-model
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Jackson – Bidirectional Relationships 1. Overview In this tutorial, we’ll go over the best ways to deal with bidirectional relationships in Jackson. We’ll discuss the Jackson JSON infinite recursion problem, then – we’ll see how to serialize entities with bidirectional relationships and finally – we will deserialize them. 2. Infinite… Continue Reading jackson-bidirectional-relationships-and-infinite-recursion
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Jackson JSON Views 1. Overview In this tutorial, we’ll go over how to use Jackson JSON Views to serialize/deserialize objects, customize the views and finally – how to start integrating with Spring. 2. Serialize Using JSON Views First – let’s go through a simple example – serialize an object with… Continue Reading jackson-json-view-annotation
Mapping Nested Values with Jackson 1. Overview A typical use case when working with JSON is to perform a transformation from one model into another. For example, we might want to parse a complex, densely nested object graph into a more straightforward model for use in another domain. In this… Continue Reading jackson-nested-values
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Jackson Support for Kotlin 1. Overview In this tutorial, we’ll discuss the Jackson support for Kotlin. We’ll explore how to serialize and deserialize both Objects and Collections. We’ll also make use of @JsonProperty and @JsonInclude annotations. 2. Maven Configuration First, we need to add the jackson-module-kotlin dependency to our pom.xml:… Continue Reading jackson-kotlin
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Mapping a Dynamic JSON Object with Jackson 1. Introduction Working with predefined JSON data structures with Jackson is straightforward. However, sometimes we need to handle dynamic JSON objects, which have unknown properties. In this short tutorial, we’ll see multiple ways of mapping dynamic JSON objects into Java classes. Note that in… Continue Reading jackson-mapping-dynamic-object
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Compare Two JSON Objects with Jackson 1. Overview In this article, we’ll have a look at comparing two JSON objects using Jackson – a JSON processing library for Java. 2. Maven Dependency First, let’s add the jackson-databind Maven dependency: <dependency> <groupId>com.fasterxml.jackson.core</groupId> <artifactId>jackson-databind</artifactId> <version>2.9.8</version> </dependency> 3. Using Jackson to Compare Two… Continue Reading jackson-compare-two-json-objects
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