/*
* 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.flink.runtime.state;
/**
* This interface must be implemented by functions/operations that want to receive
* a commit notification once a checkpoint has been completely acknowledged by all
* participants.
*/
public interface CheckpointListener {
/**
* This method is called as a notification once a distributed checkpoint has been completed.
*
* Note that any exception during this method will not cause the checkpoint to
* fail any more.
*
* @param checkpointId The ID of the checkpoint that has been completed.
* @throws Exception
*/
void notifyCheckpointComplete(long checkpointId) throws Exception;
}