NotificationPartReceiver.java

package au.gov.ga.earthsci.notification.ui;

import java.util.ArrayList;
import java.util.List;

import au.gov.ga.earthsci.notification.INotification;
import au.gov.ga.earthsci.notification.INotificationReceiver;

/**
 * A {@link INotificationReceiver} that provides a tabular view of historic
 * notifications which can be dynamically grouped by level, category etc.
 * <p/>
 * This class maintains the model of historic notifications, and notifies an
 * associated {@link NotificationPart} when a new notification is received.
 * <p/>
 * This receiver will continue to log notifications in the absence of an
 * associated view, so that when/if the view is created it will have access to
 * the historic log.
 * 
 * @author James Navin (james.navin@ga.gov.au)
 */
public class NotificationPartReceiver implements INotificationReceiver
{

	private NotificationPart view;

	private List<INotification> notifications = new ArrayList<INotification>();

	@Override
	public void handle(INotification notification)
	{
		notifications.add(notification);
		if (view != null)
		{
			view.refresh(notification);
		}
	}

	/**
	 * @return The list of all notifications received by this receiver, in the
	 *         order in which they were received.
	 */
	public List<INotification> getNotifications()
	{
		return notifications;
	}

	/**
	 * Set the notification view on this receiver. This is the view which will
	 * be notified of new notifications.
	 */
	public void setView(NotificationPart notificationView)
	{
		this.view = notificationView;
	}

}