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Source code
001/*
002 * Licensed to the Apache Software Foundation (ASF) under one
003 * or more contributor license agreements.  See the NOTICE file
004 * distributed with this work for additional information
005 * regarding copyright ownership.  The ASF licenses this file
006 * to you under the Apache License, Version 2.0 (the
007 * "License"); you may not use this file except in compliance
008 * with the License.  You may obtain a copy of the License at
009 *
010 *   http://www.apache.org/licenses/LICENSE-2.0
011 *
012 * Unless required by applicable law or agreed to in writing,
013 * software distributed under the License is distributed on an
014 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 * KIND, either express or implied.  See the License for the
016 * specific language governing permissions and limitations
017 * under the License.
018 */
019package org.apache.reef.io.network.group.impl.utils;
020
021import java.util.Map;
022
023/**
024 * Represents data that is transferred across evaluators during Scatter.
025 */
026public final class ScatterData {
027
028  private final byte[][] myData;
029  private final Map<String, byte[]> childrenData;
030
031  /**
032   * Create a {@code ScatterData} instance with the given data.
033   */
034  public ScatterData(final byte[][] myData, final Map<String, byte[]> childrenData) {
035    this.myData = myData;
036    this.childrenData = childrenData;
037  }
038
039  /**
040   * Returns data that is assigned to this node.
041   *
042   * @return data that is assigned to this node
043   */
044  public byte[][] getMyData() {
045    return this.myData;
046  }
047
048  /**
049   * Returns a map of data that is assigned to this node's children.
050   *
051   * @return a map of data that is assigned to this node's children
052   */
053  public Map<String, byte[]> getChildrenData() {
054    return this.childrenData;
055  }
056}