| /* |
| * 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.scheduler; |
| |
| import org.apache.flink.runtime.scheduler.strategy.ExecutionVertexID; |
| import org.apache.flink.runtime.taskmanager.TaskManagerLocation; |
| |
| import java.util.Collection; |
| import java.util.Set; |
| |
| /** Component to retrieve the preferred locations of an execution vertex. */ |
| @FunctionalInterface |
| public interface SyncPreferredLocationsRetriever { |
| |
| /** |
| * Returns preferred locations of an execution vertex. |
| * |
| * @param executionVertexId id of the execution vertex |
| * @param producersToIgnore producer vertices to ignore when calculating input locations |
| * @return future of preferred locations |
| */ |
| Collection<TaskManagerLocation> getPreferredLocations( |
| ExecutionVertexID executionVertexId, Set<ExecutionVertexID> producersToIgnore); |
| } |