juneau-examples/juneau-examples-core/src/main/java/org/apache/juneau/examples/core/xml/XmlComplexExample.java

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package org.apache.juneau.examples.core.xml;

import java.util.*;

import org.apache.juneau.examples.core.pojo.*;
import org.apache.juneau.xml.*;

/**
 * Sample class which shows the complex usage of XmlSerializer.
 *
 * <ul class='seealso'>
 * 	<li class='extlink'>{@source}
 * </ul>
 */
public class XmlComplexExample {

	/**
	 * Serializing PojoComplex bean into human readable XML
	 * and Deserialize back to PojoComplex instance type.
	 *
	 * @param args Unused.
	 * @throws Exception Unused.
	 */
	public static void main(String[] args) throws Exception {

		// Fill some data to a PojoComplex bean
		HashMap<String, List<Pojo>> values = new HashMap<>();
		ArrayList<Pojo> setOne = new ArrayList<>();
		setOne.add(new Pojo("1.1", "name1"));
		setOne.add(new Pojo("1.1", "name2"));
		ArrayList<Pojo> setTwo = new ArrayList<>();
		setTwo.add(new Pojo("1.2", "name1"));
		setTwo.add(new Pojo("1.2", "name2"));
		values.put("setOne", setOne);
		values.put("setTwo", setTwo);
		PojoComplex pojoc = new PojoComplex("pojo", new Pojo("1.0", "name0"), values);

		// Serialize to human readable XML and print
		String serial = XmlSerializer.DEFAULT_SQ_READABLE.serialize(pojoc);
		System.out.println(serial);

		// Deserialize back to PojoComplex instance
		PojoComplex obj = XmlParser.DEFAULT.parse(serial, PojoComplex.class);

		assert obj.getClass().equals(pojoc.getClass());
		assert obj.getInnerPojo().getId().equals(pojoc.getInnerPojo().getId());

		// The object above can be parsed thanks to the @BeanConstructor annotation on PojoComplex
		// Using this approach, you can keep your POJOs immutable, and still serialize and deserialize them.

	}
}