ChangeRecorderExample.java

package fr.obeo.emf.edit.econ2013.live;

import org.eclipse.emf.common.command.BasicCommandStack;
import org.eclipse.emf.ecore.change.util.ChangeRecorder;
import org.eclipse.emf.edit.command.ChangeCommand;
import org.eclipse.emf.examples.extlibrary.Book;
import org.eclipse.emf.examples.extlibrary.EXTLibraryFactory;
import org.eclipse.emf.examples.extlibrary.Library;
import org.eclipse.emf.examples.extlibrary.Writer;

public class ChangeRecorderExample {

  /**
	 * @param args
	 */
	public static void main(String[] args) {
		BasicCommandStack commandStack = new BasicCommandStack();
		
		final Library library = EXTLibraryFactory.eINSTANCE.createLibrary();
		library.setName("My Library");

		ChangeRecorder recorder = new ChangeRecorder();
		ChangeCommand command = new ChangeCommand(recorder, library) {
			
			@Override
			protected void doExecute() {
				Book book = EXTLibraryFactory.eINSTANCE.createBook();
				book.setTitle("The two towers");
				library.getBooks().add(book);
				
				Writer writer = EXTLibraryFactory.eINSTANCE.createWriter();
				writer.setName("JRR Tolkien");
				library.getWriters().add(writer);
				
				book.setAuthor(writer);
			}
		};
		
		
		commandStack.execute(command);
		System.out.println("book title: " + library.getBooks().get(0).getTitle());
		commandStack.undo();
		System.out.println("books.isEmpty?: " + library.getBooks().isEmpty());
	
	}

}