<?xml version="1.0" encoding="UTF-8"?>
<ecore:EPackage xmi:version="2.0"
    xmlns:xmi="http://www.omg.org/XMI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:ecore="http://www.eclipse.org/emf/2002/Ecore" name="model"
    nsURI="http://model/1.0" nsPrefix="emf.model">
  <eClassifiers xsi:type="ecore:EClass" name="Person">
    <eStructuralFeatures xsi:type="ecore:EAttribute" name="nick" eType="ecore:EDataType http://www.eclipse.org/emf/2002/Ecore#//EString"/>
  </eClassifiers>
  <eClassifiers xsi:type="ecore:EClass" name="PersonList">
    <eStructuralFeatures xsi:type="ecore:EReference" name="persons" upperBound="-1"
        eType="#//Person"/>
  </eClassifiers>
</ecore:EPackage>

import org.eclipse.emf.common.notify.Notification;
import org.eclipse.emf.ecore.util.EContentAdapter;

import emf.model.ModelFactory;
import emf.model.Person;
import emf.model.PersonList;

public class Main {

	public static void main(String[] args) {
		EContentAdapter adapter = new EContentAdapter() {
			public void notifyChanged(Notification notification) {
				// it does not make any difference if i call super or not?!
				super.notifyChanged(notification);
				System.out.println(String.format("data changed! (%s = '%s')",
						notification.getNotifier().getClass().getSimpleName(),
						notification.getNotifier()));
			}
		};

		PersonList list = ModelFactory.eINSTANCE.createPersonList();
		list.eAdapters().add(adapter);

		Person me = ModelFactory.eINSTANCE.createPerson();
		me.eAdapters().add(adapter);
		System.out.println("added a person");
		list.getPersons().add(me);
		System.out.println("changing persons nick");
		me.setNick("lumo");

		// add more persons
		Person ed = ModelFactory.eINSTANCE.createPerson();
		ed.setNick("Ed");
		System.out.println("adding another person");
		list.getPersons().add(ed);
	}
}

ModelPackage.Literals.PERSON.eAdapters().add(adapter);