/**
* 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.tez.dag.history;
import java.io.IOException;
import java.io.OutputStream;
import org.apache.tez.dag.recovery.records.RecoveryProtos.SummaryEventProto;
public interface SummaryEvent {
public void toSummaryProtoStream(OutputStream outputStream) throws IOException;
public void fromSummaryProtoStream(SummaryEventProto proto) throws IOException;
/**
* Whether to write this event immediately to the DAG recovery file
* Summary events are always written immediately to summary file.
* @return true if event should be written immediately to the DAG recovery file
*/
public boolean writeToRecoveryImmediately();
}