javax.tv.service.navigation.CAIdentification Maven / Gradle / Ivy

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/*
 * @(#)CAIdentification.java	1.10 00/08/06
 *
 * Copyright 1998-2000 by Sun Microsystems, Inc.,
 * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
 * All rights reserved.
 * 
 * This software is the confidential and proprietary information
 * of Sun Microsystems, Inc. ("Confidential Information").  You
 * shall not disclose such Confidential Information and shall use
 * it only in accordance with the terms of the license agreement
 * you entered into with Sun.
 */

package javax.tv.service.navigation;


/**
 * This interface associates information related to
 * the conditional access (CA) subsystem with certain SI objects.
 * 
 * @see ServiceDetails
 * @see javax.tv.service.guide.ProgramEvent
 * @see javax.tv.service.transport.Bouquet
 */
public interface CAIdentification {
	
 /**
  * Returns an array of CA System IDs associated with this object. This
  * information may be obtained from the CAT MPEG message or a system
  * specific conditional access descriptor (such as defined by Simulcrypt
  * or ATSC).
  *
  * @return An array of CA System IDs. An empty array is returned when no
  * CA System IDs are available.
  */
  public abstract int[] getCASystemIDs();
  
  /**
   * Provides information concerning conditional access of this object.
   *
   * @return true if this Service is not protected by a
   * conditional access; false if one or more components
   * is protected by conditional access.  */
  public abstract boolean isFree();
}