TaskActions.java

/*
 * 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.taskmanager;

import org.apache.flink.api.common.JobID;
import org.apache.flink.runtime.io.network.partition.ResultPartitionID;
import org.apache.flink.runtime.jobgraph.IntermediateDataSetID;

/**
 * Actions which can be performed on a {@link Task}.
 */
public interface TaskActions {

	/**
	 * Check the execution state of the execution producing a result partition.
	 *
	 * @param jobId ID of the job the partition belongs to.
	 * @param intermediateDataSetId ID of the parent intermediate data set.
	 * @param resultPartitionId ID of the result partition to check. This
	 * identifies the producing execution and partition.
	 */
	void triggerPartitionProducerStateCheck(
		JobID jobId,
		IntermediateDataSetID intermediateDataSetId,
		ResultPartitionID resultPartitionId);

	/**
	 * Fail the owning task with the given throwable.
	 *
	 * @param cause of the failure
	 */
	void failExternally(Throwable cause);
}