AbstractModel.java

package CrowdBenchmark.models;

import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;

public class AbstractModel {

	protected final PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(
			this);

	public void addPropertyChangeListener(String propertyName,
			PropertyChangeListener listener) {
		propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
	}

	public void removePropertyChangeListener(PropertyChangeListener listener) {
		propertyChangeSupport.removePropertyChangeListener(listener);
	}

}