/*
* 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.distributed.internal.membership;
/**
* A QuorumChecker is created after a forced-disconnect in order to probe the network to see if
* there is a quorum of members that can be contacted.
*
*
*/
public interface QuorumChecker {
/**
* Check to see if a quorum of the old members are reachable
*
* @param timeoutMS time to wait for responses, in milliseconds
*/
public boolean checkForQuorum(long timeoutMS) throws InterruptedException;
/**
* suspends the quorum checker for an attempt to connect to the distributed system
*/
public void suspend();
/**
* resumes the quorum checker after having invoked suspend();
*/
public void resume();
/**
* closes the quorum checker and releases resources. Use this if the distributed system is not
* going to be reconnected and you want to release resources.
*/
public void close();
/**
* Get the membership info from the old system that needs to be passed to the one that is
* reconnecting.
*/
public Object getMembershipInfo();
/**
* Returns the membership view that is being used to establish a quorum
*/
public NetView getView();
}