    001/*
    002 * Copyright (c) 2007-2017 Xplenty, Inc. All Rights Reserved.
    003 *
    004 * Project and contact information: http://www.cascading.org/
    005 *
    006 * This file is part of the Cascading project.
    007 *
    008 * Licensed under the Apache License, Version 2.0 (the "License");
    009 * you may not use this file except in compliance with the License.
    010 * You may obtain a copy of the License at
    011 *
    012 *     http://www.apache.org/licenses/LICENSE-2.0
    013 *
    014 * Unless required by applicable law or agreed to in writing, software
    015 * distributed under the License is distributed on an "AS IS" BASIS,
    016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    017 * See the License for the specific language governing permissions and
    018 * limitations under the License.
    019 */
    020
    021package cascading.pipe;
    022
    023import java.util.Map;
    024
    025import cascading.flow.FlowElement;
    026import cascading.tuple.Fields;
    027
    028/**
    029 *
    030 */
    031public interface Group extends FlowElement
    032  {
    033  String getName();
    034
    035  boolean isGroupBy();
    036
    037  boolean isCoGroup();
    038
    039  boolean isSortReversed();
    040
    041  boolean isSorted();
    042
    043  Map<String, Fields> getKeySelectors();
    044
    045  Map<String, Fields> getSortingSelectors();
    046  }