/*
* RHQ Management Platform
* Copyright (C) 2005-2008 Red Hat, Inc.
* All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License, version 2, as
* published by the Free Software Foundation, and/or the GNU Lesser
* General Public License, version 2.1, also as published by the Free
* Software Foundation.
*
* 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 and the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU General Public License
* and the GNU Lesser General Public License along with this program;
* if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.rhq.core.pc.inventory;
import java.util.Set;
import org.rhq.core.domain.resource.Resource;
/**
* Implementations of this class are notified of changes to the inventory model. Registration of these listeners is done
* through the {@link InventoryManager#addInventoryEventListener(InventoryEventListener)}.
*
* @author Jason Dobies
*/
public interface InventoryEventListener {
/**
* Indicates the specified resources were added to the inventory.
*
* @param resources resources added to trigger this event; cannot be <code>null</code>
*/
void resourcesAdded(Set<Resource> resources);
/**
* Indicates the specified resources were removed from the inventory.
*
* @param resources resources removed to trigger this event; cannot be <code>null</code>
*/
void resourcesRemoved(Set<Resource> resources);
/**
* Indicates a resource has passed all of the necessary approvals and synchronizations to be activated in the plugin
* container.
*
* @param resource
*
* @see InventoryManager#activateResource(Resource)
*/
void resourceActivated(Resource resource);
/**
* Indicates a resource's component has been stopped and deactivated within the plugin container.
*
* @param resource
*
* @see InventoryManager#deactivateResource(Resource)
*/
void resourceDeactivated(Resource resource);
}