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CoreTopologyService.java
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CoreTopologyService.java
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/*
* Copyright (c) 2002-2017 "Neo Technology,"
* Network Engine for Objects in Lund AB [http://neotechnology.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.causalclustering.discovery;
import org.neo4j.causalclustering.identity.ClusterId;
public interface CoreTopologyService extends ReadReplicaTopologyService
{
void addCoreTopologyListener( Listener listener );
/**
* Publishes the cluster ID so that other members might discover it.
* Should only succeed to publish if one missing or already the same (CAS logic).
*
* @param clusterId The cluster ID to publish.
*
* @return True if the cluster ID was successfully CAS:ed, otherwise false.
*/
boolean setClusterId( ClusterId clusterId );
void refreshCoreTopology();
interface Listener
{
void onCoreTopologyChange( CoreTopology coreTopology );
}
}