/*
Wotonomy: OpenStep design patterns for pure Java applications.
Copyright (C) 2000 Blacksmith, Inc.

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see http://www.gnu.org
*/

package net.wotonomy.web;

import java.util.List;

/**
 * A pure java implementation of WOMailDelivery.
 *
 * @author michael@mpowers.net
 * @author $Author: cgruber $
 * @version $Revision: 905 $
 */
public abstract class WOMailDelivery {
	private static WOMailDelivery sharedInstance;

	protected WOMailDelivery() {
	}

	public static WOMailDelivery sharedInstance() {
		if (sharedInstance == null) {
//	    	sharedInstance = new WOMailDelivery();
		}
		return sharedInstance;
	}

	public abstract String composePlainTextEmail(String aSender, List aToList, List aCcList, String aSubject,
			String aMessage, boolean sendImmediately);

	public abstract String composeComponentEmail(String aSender, List aToList, List aCcList, String aSubject,
			WOComponent aComponent, boolean sendImmediately);

	public abstract void sendEmail(String aMailMessage);
}