content: /*
   * Copyright 1999-2018 Alibaba Group Holding Ltd.
   *
   * 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 com.alibaba.nacos.client.naming.event;
  
  import com.alibaba.nacos.api.naming.pojo.Instance;
  import com.alibaba.nacos.common.notify.Event;
  
  import java.util.List;
  
  /**
   * Instances change event.
   *
   * @author horizonzy
   * @since 1.4.1
   */
  public class InstancesChangeEvent extends Event {
      
      private static final long serialVersionUID = -8823087028212249603L;
      
      private final String eventScope;
      
      private final String serviceName;
      
      private final String groupName;
      
      private final String clusters;
      
      private final List<Instance> hosts;
  
      private InstancesDiff instancesDiff;
      
      public InstancesChangeEvent(String eventScope, String serviceName, String groupName, String clusters, List<Instance> hosts, InstancesDiff diff) {
          this.eventScope = eventScope;
          this.serviceName = serviceName;
          this.groupName = groupName;
          this.clusters = clusters;
          this.hosts = hosts;
          this.instancesDiff = diff;
      }
      
      public String getServiceName() {
          return serviceName;
      }
      
      public String getGroupName() {
          return groupName;
      }
      
      public String getClusters() {
          return clusters;
      }
      
      public List<Instance> getHosts() {
          return hosts;
      }
  
      public InstancesDiff getInstancesDiff() {
          return instancesDiff;
      }
  
      @Override
      public String scope() {
          return this.eventScope;
      }
  }
  