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/*
*
* 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.qpid.server.store.berkeleydb.replication;
import com.sleepycat.je.rep.NodeState;
import com.sleepycat.je.rep.ReplicationNode;
public interface ReplicationGroupListener
{
/**
* Fired when a remote replication node is added to a group. This event happens
* exactly once just after a new replication node is created.
*/
void onReplicationNodeAddedToGroup(ReplicationNode node);
/**
* Fired exactly once for each existing remote node. Used to inform the application
* on any existing nodes as it starts up for the first time.
*/
void onReplicationNodeRecovered(ReplicationNode node);
/**
* Fired when a remote replication node is (permanently) removed from group. This event
* happens exactly once just after the existing replication node is deleted.
*/
void onReplicationNodeRemovedFromGroup(ReplicationNode node);
/**
* Invoked to notify listener on node state update
*/
void onNodeState(ReplicationNode node, NodeState nodeState);
/**
* Invoked on intruder node detected
*/
boolean onIntruderNode(ReplicationNode node);
void onNoMajority();
}
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