http://github.com/FasterXML/jackson: General data-binding functionality for Jackson: works on core streaming API (FasterXML)
  • Tatu Saloranta
  • Christopher Currie
  • Paul Brown 
Classes used for exposing logical structure of POJOs as Jackson sees it, and exposed via ObjectMapper.acceptJsonFormatVisitor(Class<?>, JsonFormatVisitorWrapper) and ObjectMapper.acceptJsonFormatVisitor(JavaType, JsonFormatVisitorWrapper) methods. 
 The main entrypoint for code, then, is JsonFormatVisitorWrapper and other types are recursively needed during traversal. 
/**
 * Classes used for exposing logical structure of POJOs as Jackson
 * sees it, and exposed via
 * {@link com.fasterxml.jackson.databind.ObjectMapper#acceptJsonFormatVisitor(Class, JsonFormatVisitorWrapper)}
 * and
 * {@link com.fasterxml.jackson.databind.ObjectMapper#acceptJsonFormatVisitor(com.fasterxml.jackson.databind.JavaType, JsonFormatVisitorWrapper)}
 * methods.
 *<p>
 * The main entrypoint for code, then, is {@link com.fasterxml.jackson.databind.jsonFormatVisitors.JsonFormatVisitorWrapper} and other
 * types are recursively needed during traversal.
 */
package com.fasterxml.jackson.databind.jsonFormatVisitors;