content: /*
   * Copyright 2012-2025 Aerospike, Inc.
   *
   * Portions may be licensed to Aerospike, Inc. under one or more contributor
   * license agreements WHICH ARE COMPATIBLE WITH THE APACHE LICENSE, VERSION 2.0.
   *
   * 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.aerospike.client.policy;
  
  /**
   * Defines algorithm used to determine the target node for a command.
   */
  public enum Replica {
  	/**
  	 * Use node containing key's master partition.
  	 */
  	MASTER,
  
  	/**
  	 * Distribute reads across nodes containing key's master and replicated partitions
  	 * in round-robin fashion.  Writes always use node containing key's master partition.
  	 */
  	MASTER_PROLES,
  
  	/**
  	 * Try node containing master partition first.
  	 * If connection fails, all commands try nodes containing replicated partitions.
  	 * If socketTimeout is reached, reads also try nodes containing replicated partitions,
  	 * but writes remain on master node.
  	 */
  	SEQUENCE,
  
  	/**
  	 * Try node on the same rack as the client first.  If timeout or there are no nodes on the
  	 * same rack, use SEQUENCE instead.
  	 * <p>
  	 * {@link ClientPolicy#rackAware}, {@link ClientPolicy#rackId}, and server rack
  	 * configuration must also be set to enable this functionality.
  	 */
  	PREFER_RACK,
  
  	/**
  	 * Distribute reads and writes across all nodes in cluster in round-robin fashion.
  	 * Writes always use node containing key's master partition.
  	 * <p>
  	 * This option is useful on reads when the replication factor equals the number
  	 * of nodes in the cluster and the overhead of requesting proles is not desired.
  	 * <p>
  	 * This option could temporarily be useful on writes when the client can't connect
  	 * to a node, but that node is reachable via a proxy from a different node.
  	 * <p>
  	 * This option can also be used to test server proxies.
  	 */
  	RANDOM;
  }
  