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;
  
  import java.io.Serializable;
  import java.util.Set;
  
  import org.omg.dds.core.DDSObject;
  import org.omg.dds.core.ServiceEnvironment;
  
  
  /**
   * Status is the abstract root class for all communication status objects.
   * All concrete kinds of Status classes extend this class.
   * 
   * Each concrete {@link org.omg.dds.core.Entity} is associated with a set of Status objects
   * whose value represents the "communication status" of that entity. These
   * status values can be accessed with corresponding methods on the Entity.
   * The changes on these status values are the ones that both cause activation
   * of the corresponding {@link org.omg.dds.core.StatusCondition} objects and trigger invocation
   * of the proper Listener objects to asynchronously inform the application.
   * 
   * @see org.omg.dds.core.event.StatusChangedEvent
   */
  public abstract class Status implements Serializable, DDSObject
  {
      // -----------------------------------------------------------------------
      // Constants
      // -----------------------------------------------------------------------
  
      private static final long serialVersionUID = 8294883446033723160L;
  
  
  
      // -----------------------------------------------------------------------
      // Object Life Cycle
      // -----------------------------------------------------------------------
  
      /**
       * @param env       Identifies the Service instance to which the
       *                  object will belong.
       */
      public static Set<Class<? extends Status>> allStatuses(
              ServiceEnvironment env)
      {
          return env.getSPI().allStatusKinds();
      }
  
  
      /**
       * @param env Identifies the Service instance to which the
       *                  object will belong.
       */
      public static Set<Class<? extends Status>> noStatuses(
              ServiceEnvironment env)
      {
          return env.getSPI().noStatusKinds();
      }
  }
  