/**
 *  Copyright (C) 2010 Cloud.com, Inc.  All rights reserved.
 * 
 * This software is licensed under the GNU General Public License v3 or later.
 * 
 * It is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or any later version.
 * This program 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 General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 * 
 */
package com.cloud.resource;

import com.cloud.host.Host;

/**
 * ResourceManager manages how physical resources are organized within the
 * CloudStack. It also manages the life cycle of the physical resources.
 */
public interface ResourceManager {
    /**
     * Register a listener for different types of resource life cycle events.
     * There can only be one type of listener per type of host.
     * 
     * @param Event type see ResourceListener.java, allow combination of multiple events.
     * @param listener the listener to notify.
     */
    public void registerResourceEvent(Integer event, ResourceListener listener);
    
    public void unregisterResourceEvent(ResourceListener listener);
}