Jackie

Simple JSON serialization and deserialization from/to object.

What is Jackie good for?

Yet another JSON object serializer/deserializer, that is small and relatively fast.

	Simple array from JSON	Complex object from JSON	Simple array to JSON	Complex object to JSON
Jackie	3ms	19ms	2ms	3ms
Gson	59ms	66ms	60ms	60ms

Installation

<dependency>
    <groupId>cz.tvrzna</groupId>
    <artifactId>jackie</artifactId>
    <version>0.4.3</version>
</dependency>

Example

Let have sample object class, that defines primitive structure.

JackieExample.java

package test.project;

import java.util.Date;
import cz.tvrzna.jackie.Jackie;

public class JackieExample
{
	private Long id;
	private String name;
	private boolean active;
	private Date createDate;

	public JackieExample()
	{
	}

	public JackieExample(Long id, String name, boolean active, Date createDate)
	{
		this.id = id;
		this.name = name;
		this.active = active;
		this.createDate = createDate;
	}
}

Object To JSON

Jackie jackie = new Jackie();

JackieExample example = new JackieExample(123456789l, "Jackie's example", true, new Date());
System.out.println(jackie.toJson(example));

and the result is

{"id":123456789,"name":"Jackie's example","active":true,"createDate":"2020-03-10T13:43:24"}

JSON To Object

final String json = "[{\"id\":123456789,\"name\":\"Jackie's example\",\"active\":true,\"createDate\":\"2020-03-10T13:43:24\"}]";

Jackie jackie = new Jackie();

JackieExample example = jackie.fromJson(json, JackieExample.class);

JSON To List

final String json = "[{\"id\":123456789,\"name\":\"Jackie's example\",\"active\":true,\"createDate\":\"2020-03-10T13:43:24\"}]";

Jackie jackie = new Jackie();

List<JackieExample> lstExamples = jackie.fromJson(json, List.class, JackieExample.class);

JSON To Map

final String json = "{0: {\"id\":123456789,\"name\":\"Jackie's example\",\"active\":true,\"createDate\":\"2020-03-10T13:43:24\"}}";

Jackie jackie = new Jackie();

Map<Integer, JackieExample> mapExample = jackie.fromJson(json, Map.class, Integer.class, JackieExample.class);