/*
* Lokomo OneCMDB - An Open Source Software for Configuration
* Management of Datacenter Resources
*
* Copyright (C) 2006 Lokomo Systems AB
*
* This program 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 2 of the License, or (at
* your option) 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA.
*
* Lokomo Systems AB can be contacted via e-mail: info@lokomo.com or via
* paper mail: Lokomo Systems AB, Sv�rdv�gen 27, SE-182 33
* Danderyd, Sweden.
*
*/
package org.onecmdb.core;
/**
* <p>A value provider is loosely coupled to an (external) <em>resource</em>
* from where information can be retrieved.</p>
*
* <p>The provider knows the configuration items, and the attributes, where
* information fetched should be put.</p>
*
* <p>A <em>worker</em> is used to query all providers for new values, according
* to their update schemas, and policies.</p>
*/
public interface IValueProvider extends IAdaptable {
public abstract IValue fetchValueContent();
/**
* Gives a hint if the current value is valid or not.
*
* @return
*/
public abstract boolean isValid();
}