package com.fasterxml.jackson.databind.creators; import java.io.IOException; import com.fasterxml.jackson.annotation.JsonCreator; import com.fasterxml.jackson.annotation.JsonIdentityInfo; import com.fasterxml.jackson.annotation.JsonProperty; import com.fasterxml.jackson.annotation.ObjectIdGenerators; import com.fasterxml.jackson.databind.BaseMapTest; import com.fasterxml.jackson.databind.ObjectMapper; public class TestCreatorsWithIdentity extends BaseMapTest { @JsonIdentityInfo(generator=ObjectIdGenerators.PropertyGenerator.class, property="id", scope=Parent.class) public static class Parent { @JsonProperty("id") String id; @JsonProperty String parentProp; @JsonCreator public Parent(@JsonProperty("parentProp") String parentProp) { this.parentProp = parentProp; } } public static class Child { @JsonProperty Parent parent; @JsonProperty String childProp; @JsonCreator public Child(@JsonProperty("parent") Parent parent, @JsonProperty("childProp") String childProp) { this.parent = parent; this.childProp = childProp; } } private static final ObjectMapper JSON_MAPPER = new ObjectMapper(); public void testSimple() throws IOException { String parentStr = "{\"id\" : \"1\", \"parentProp\" : \"parent\"}"; String childStr = "{\"childProp\" : \"child\", \"parent\" : " + parentStr + "}"; Parent parent = JSON_MAPPER.readValue(parentStr, Parent.class); assertNotNull(parent); Child child = JSON_MAPPER.readValue(childStr, Child.class); assertNotNull(child); assertNotNull(child.parent); } }