content: /*
   * Copyright 1999-2025 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.core.cluster;
  
  import com.alibaba.nacos.core.cluster.lookup.AbstractMemberLookup;
  
  import java.util.Collection;
  
  /**
   * Nacos member managers.
   *
   * @author xiweng.yy
   */
  public interface NacosMemberManager {
      
      /**
       * Nacos members changed, called in {@link AbstractMemberLookup#afterLookup(Collection)}.
       *
       * @param members new members
       * @return {@code true} if changed, {@code false} otherwise
       */
      boolean memberChange(Collection<Member> members);
      
      /**
       * Get all members.
       *
       * @return {@link Collection} all member
       */
      Collection<Member> allMembers();
  }
  
  