/*
 * 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.iotdb.tsfile.encoding.common;

/**
 * This class defines several constants using in encoding algorithm.
 */
public class EncodingConfig {

  private EncodingConfig() {
    throw new IllegalAccessError("Utility class");
  }

  /**
   * if number n repeats more than(>=) RLE_MAX_REPEATED_NUM times, use rle
   * encoding, otherwise use bit-packing.
   */
  public static final int RLE_MAX_REPEATED_NUM = 8;

  // when to start a new bit-pacing group
  public static final int RLE_MAX_BIT_PACKED_NUM = 63;

  // bit width for Bitmap Encoding
  public static final int BITMAP_BITWIDTH = 1;
}
