content: /* Copyright 2010, Object Management Group, Inc.
   * Copyright 2010, PrismTech, Inc.
   * Copyright 2010, Real-Time Innovations, Inc.
   * All rights reserved.
   *
   * 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.
   */
  
  package org.omg.dds.core.status;
  
  
  
  /**
   * The liveliness that the {@link org.omg.dds.pub.DataWriter} has committed through its
   * {@link org.omg.dds.core.policy.Liveliness} was not respected; thus {@link org.omg.dds.sub.DataReader}
   * entities will consider the DataWriter as no longer "active."
   *
   * @see org.omg.dds.core.event.LivelinessLostEvent
   * @see LivelinessChangedStatus
   * @see SubscriptionMatchedStatus
   */
  public abstract class LivelinessLostStatus extends Status
  {
      // -----------------------------------------------------------------------
      // Constants
      // -----------------------------------------------------------------------
  
      private static final long serialVersionUID = -8294734757039670162L;
  
  
  
      // -----------------------------------------------------------------------
      // Methods
      // -----------------------------------------------------------------------
  
      /**
       * Total cumulative number of times that a previously-alive
       * {@link org.omg.dds.pub.DataWriter} became not alive due to a failure to actively
       * signal its liveliness within its offered liveliness period. This count
       * does not change when an already not alive DataWriter simply remains
       * not alive for another liveliness period.
       */
      public abstract int getTotalCount();
  
      /**
       * The change in totalCount since the last time the listener was called
       * or the status was read.
       */
      public abstract int getTotalCountChange();
  
  }
  