Java tutorial
/* * Copyright 2008-present MongoDB, Inc. * * 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.mongodb.connection; import com.mongodb.async.SingleResultCallback; import com.mongodb.lang.Nullable; import com.mongodb.selector.ServerSelector; import org.bson.BsonTimestamp; import java.io.Closeable; /** * Represents a cluster of MongoDB servers. Implementations can define the behaviour depending upon the type of cluster. * * @since 3.0 */ @Deprecated public interface Cluster extends Closeable { /** * Gets the cluster settings with which this cluster was created. * * @return the cluster settings * @since 3.4 */ ClusterSettings getSettings(); /** * Get the description of this cluster. This method will not return normally until the cluster type is known. * * @return a ClusterDescription representing the current state of the cluster * @throws com.mongodb.MongoTimeoutException if the timeout has been reached before the cluster type is known */ ClusterDescription getDescription(); /** * Get the current description of this cluster. * * @return the current ClusterDescription representing the current state of the cluster. */ ClusterDescription getCurrentDescription(); /** * Get the last seen cluster time * * @since 3.8 * @return the last seen cluster time or null if not set */ @Nullable BsonTimestamp getClusterTime(); /** * Get a MongoDB server that matches the criteria defined by the serverSelector * * @param serverSelector a ServerSelector that defines how to select the required Server * @return a Server that meets the requirements * @throws com.mongodb.MongoTimeoutException if the timeout has been reached before a server matching the selector is available */ Server selectServer(ServerSelector serverSelector); /** * Asynchronously gets a MongoDB server that matches the criteria defined by the serverSelector. * * @param serverSelector a ServerSelector that defines how to select the required Server * @param callback the callback to invoke when the server is found or an error occurs */ void selectServerAsync(ServerSelector serverSelector, SingleResultCallback<Server> callback); /** * Closes connections to the servers in the cluster. After this is called, this cluster instance can no longer be used. */ void close(); /** * Whether all the servers in the cluster are closed or not. * * @return true if all the servers in this cluster have been closed */ boolean isClosed(); }