/*
* The Alluxio Open Foundation licenses this work under the Apache License, version 2.0
* (the "License"). You may not use this work except in compliance with the License, which is
* available at www.apache.org/licenses/LICENSE-2.0
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
* either express or implied, as more fully set forth in the License.
*
* See the NOTICE file distributed with this work for information regarding copyright ownership.
*/
package alluxio.master;
import alluxio.Server;
import alluxio.master.journal.JournalEntryIterable;
import alluxio.proto.journal.Journal.JournalEntry;
import java.io.IOException;
/**
* This interface contains common operations for all masters.
*/
public interface Master extends JournalEntryIterable, Server<Boolean> {
/**
* Processes a journal entry and applies it to the master. These entries follow the checkpoint
* entries.
*
* @param entry the entry to process to update the state of the master
*/
void processJournalEntry(JournalEntry entry) throws IOException;
}