AbstractModelObject.java

package gdsc.foci.model;

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

/**
 * Abstract implementation of {@link Model} interface that provides methods for property change notification.
 */
public abstract class AbstractModelObject
{
	private final PropertyChangeSupport propertyChangeSupport = new PropertyChangeSupport(this);

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

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

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

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

	protected void firePropertyChange(String propertyName, Object oldValue, Object newValue)
	{
		propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
	}

	protected void firePropertyChange(String propertyName, int oldValue, int newValue)
	{
		propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
	}

	protected void firePropertyChange(String propertyName, boolean oldValue, boolean newValue)
	{
		propertyChangeSupport.firePropertyChange(propertyName, oldValue, newValue);
	}

	protected void firePropertyChange(PropertyChangeEvent evt)
	{
		propertyChangeSupport.firePropertyChange(evt);
	}

	protected void fireIndexedPropertyChange(String propertyName, int index, Object oldValue, Object newValue)
	{
		propertyChangeSupport.fireIndexedPropertyChange(propertyName, index, oldValue, newValue);
	}

	protected void fireIndexedPropertyChange(String propertyName, int index, int oldValue, int newValue)
	{
		propertyChangeSupport.fireIndexedPropertyChange(propertyName, index, oldValue, newValue);
	}

	protected void fireIndexedPropertyChange(String propertyName, int index, boolean oldValue, boolean newValue)
	{
		propertyChangeSupport.fireIndexedPropertyChange(propertyName, index, oldValue, newValue);
	}
}