com.netflix.genie.web.data.observers.PersistedJobStatusObserver Maven / Gradle / Ivy
/*
*
* Copyright 2019 Netflix, Inc.
*
* Licensed 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 com.netflix.genie.web.data.observers;
import com.netflix.genie.common.internal.dtos.JobStatus;
import javax.annotation.Nullable;
/**
* Interface for an observer that gets notified of job 'status' change after the latter is persisted.
* This observer is invoked as callback during data/persistence methods.
* It should NOT spend significant time processing.
*
* @author mprimi
* @since 4.0.0
*/
public interface PersistedJobStatusObserver {
/**
* Handle a notification of job status change after the latter was successfully committed to persistent storage.
*
* @param jobId the job unique id
* @param previousStatus the previous job status, or null if this job was just created and persisted
* @param currentStatus the job status that was just persisted. Guaranteed to be different than the previous.
*/
void notify(String jobId, @Nullable JobStatus previousStatus, JobStatus currentStatus);
}