/*
* 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.executiongraph;
import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.jobgraph.JobStatus;
/**
* Interface for observers that monitor the status of a job.
*/
public interface JobStatusListener {
/**
* This method is called whenever the status of the job changes.
*
* @param jobId The ID of the job.
* @param newJobStatus The status the job switched to.
* @param timestamp The timestamp when the status transition occurred.
* @param error In case the job status switches to a failure state, this is the
* exception that caused the failure.
*/
void jobStatusChanges(JobID jobId, JobStatus newJobStatus, long timestamp, Throwable error);
}