| /* |
| * 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.ignite.hadoop; |
| |
| import java.util.Collection; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Compact job description. |
| */ |
| public interface HadoopJob { |
| /** |
| * Gets collection of input splits for this job. |
| * |
| * @return Input splits. |
| */ |
| public Collection<HadoopInputSplit> input(); |
| |
| /** |
| * Gets optional configuration property for the job. |
| * |
| * @param name Property name. |
| * @return Value or {@code null} if none. |
| */ |
| @Nullable String property(String name); |
| |
| /** |
| * Checks whether job has combiner. |
| * |
| * @return {@code true} If job has combiner. |
| */ |
| boolean hasCombiner(); |
| |
| /** |
| * Checks whether job has reducer. |
| * Actual number of reducers will be in {@link HadoopMapReducePlan#reducers()}. |
| * |
| * @return Number of reducer. |
| */ |
| boolean hasReducer(); |
| |
| /** |
| * @return Number of reducers configured for job. |
| */ |
| int reducers(); |
| |
| /** |
| * Gets job name. |
| * |
| * @return Job name. |
| */ |
| String jobName(); |
| |
| /** |
| * Gets user name. |
| * |
| * @return User name. |
| */ |
| String user(); |
| } |