/*
* 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#setCacheListener
* @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.
*/
public 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.
*/
public void afterRoleLoss(RoleEvent<K, V> event);
}