Java tutorial
/* * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. * The ASF licenses this file to You 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.apache.solr.common.cloud; import org.apache.zookeeper.KeeperException.SessionExpiredException; /** * Implementations are expected to implement a correct hashCode and equals * method needed to uniquely identify the listener as listeners are managed * in a Set. In addition, your listener implementation should call * org.apache.solr.cloud.ZkController#removeOnReconnectListener(OnReconnect) * when it no longer needs to be notified of ZK reconnection events. */ public interface OnReconnect { void command() throws SessionExpiredException; }