content: /*
   * 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.carbondata.processing.sort.sortdata;
  
  import java.io.Serializable;
  import java.util.Comparator;
  
  /**
   * This class is used as comparator for comparing dims which are non high cardinality dims.
   * Here the dims will be in form of int[] (surrogates) so directly comparing the integers.
   */
  public class NewRowComparatorForNormalDims implements Comparator<Object[]>, Serializable {
    private static final long serialVersionUID = -1749874611112709432L;
  
    /**
     * dimension count
     */
    private int numberOfSortColumns;
  
    /**
     * NewRowComparatorForNormalDims Constructor
     *
     * @param numberOfSortColumns
     */
    public NewRowComparatorForNormalDims(int numberOfSortColumns) {
      this.numberOfSortColumns = numberOfSortColumns;
    }
  
    /**
     * Below method will be used to compare two surrogate keys
     *
     * @see Comparator#compare(Object, Object)
     */
    @Override
    public int compare(Object[] rowA, Object[] rowB) {
      int diff = 0;
  
      for (int i = 0; i < numberOfSortColumns; i++) {
        int dimFieldA = (int)rowA[i];
        int dimFieldB = (int)rowB[i];
        diff = dimFieldA - dimFieldB;
        if (diff != 0) {
          return diff;
        }
      }
      return diff;
    }
  }
  