/**********************************************************************************
* $URL: https://source.sakaiproject.org/svn/courier/trunk/courier-api/api/src/java/org/sakaiproject/courier/api/ObservingCourier.java $
* $Id: ObservingCourier.java 105079 2012-02-24 23:08:11Z ottenhoff@longsight.com $
***********************************************************************************
*
* Copyright (c) 2003, 2004, 2005, 2006, 2008 The Sakai Foundation
*
* Licensed under the Educational Community License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.opensource.org/licenses/ECL-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**********************************************************************************/
package org.sakaiproject.courier.api;
import java.util.Observer;
/**
* <p>
* ObservingCourier is an observer which uses the courier service to notify when things change.
* </p>
*/
public interface ObservingCourier extends Observer
{
/**
* Check to see if we want to process or ignore this update.
*
* @param arg
* The arg from the update.
* @return true to continue, false to quit.
*/
boolean check(Object arg);
/**
* Disable.
*/
void disable();
/**
* Enable.
*/
void enable();
/**
* @return the delivery id.
*/
String getDeliveryId();
/**
* @return The element id.
*/
String getElementId();
/**
* @return the enabled status.
*/
boolean getEnabled();
/**
* @return the location this observer is observing.
*/
String getLocation();
/**
* Accept notification that the element has just been delivered. If there are pending requests to deliver, they can be cleared.
*/
void justDelivered();
/**
* Set the delivery id.
*
* @param id
* The delivery id.
*/
void setDeliveryId(String id);
/**
* Set the element id.
*
* @param id
* the element id.
*/
void setElementId(String id);
}