SubscriptionConstants.java

/*******************************************************************************
 * Mission Control Technologies, Copyright (c) 2009-2012, United States Government
 * as represented by the Administrator of the National Aeronautics and Space 
 * Administration. All rights reserved.
 *
 * The MCT platform is licensed under the Apache 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.apache.org/licenses/LICENSE-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.
 *
 * MCT includes source code licensed under additional open source licenses. See 
 * the MCT Open Source Licenses file included with this distribution or the About 
 * MCT Licenses dialog available at runtime from the MCT Help menu for additional 
 * information. 
 *******************************************************************************/
package gov.nasa.arc.mct.event.services;


/**
 * Defines constants used in communicating with the {@link SubscriptionAdmin} service.
 */
public abstract class SubscriptionConstants {

	/** An event property indicating that the event designates subscription status. */
	public static final String SUBSCRIPTION_STATUS = "STATUS";
	
	/**
	 * A value for the <code>SUBSCRIPTION_STATUS</code> property that indicates
	 * that the topic has been successfully subscribed-to. 
	 */
	public static final String STATUS_SUBSCRIBED = "Subscribed";
	
	/**
	 * A value for the <code>SUBSCRIPTION_STATUS</code> property that indicates
	 * that no provider for the topic was found. 
	 */
	public static final String STATUS_UNAVAILABLE = "Unavailable";

}