| /* |
| * 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.geode.cache; |
| |
| /** |
| * A listener that can be implemented to handle region reliability membership events. These are |
| * membership events that are specific to loss or gain of required roles as defined by the region's |
| * {@link MembershipAttributes}. |
| * <p> |
| * Instead of implementing this interface it is recommended that you extend the |
| * {@link org.apache.geode.cache.util.RegionRoleListenerAdapter} class. |
| * |
| * |
| * @see AttributesFactory#setCacheListener |
| * @see RegionAttributes#getCacheListener |
| * @see AttributesMutator#addCacheListener |
| * @deprecated this feature is scheduled to be removed |
| */ |
| public interface RegionRoleListener<K, V> extends CacheListener<K, V> { |
| |
| /** |
| * Invoked when a required role has returned to the distributed system after being absent. |
| * |
| * @param event describes the member that fills the required role. |
| */ |
| void afterRoleGain(RoleEvent<K, V> event); |
| |
| /** |
| * Invoked when a required role is no longer available in the distributed system. |
| * |
| * @param event describes the member that last filled the required role. |
| */ |
| void afterRoleLoss(RoleEvent<K, V> event); |
| |
| } |