iotdb-core/tsfile/src/main/java/org/apache/iotdb/tsfile/common/constant/JsonFormatConstant.java

/*
 * 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.common.constant;

/** This class define several constant string variables used in tsfile schema's keys. */
public class JsonFormatConstant {
  public static final String JSON_SCHEMA = "schema";
  public static final String DELTA_TYPE = "delta_type";
  public static final String MEASUREMENT_UID = "measurement_id";
  public static final String DATA_TYPE = "data_type";
  public static final String MEASUREMENT_ENCODING = "encoding";
  public static final String ENUM_VALUES = "enum_values";
  public static final String ENUM_VALUES_SEPARATOR = ",";
  public static final String MAX_POINT_NUMBER = "max_point_number";
  public static final String COMPRESS_TYPE = "compressor";
  public static final String FREQ_TYPE = "freq_type";
  public static final String TSRECORD_SEPARATOR = ",";
  public static final String MAX_STRING_LENGTH = "max_string_length";

  public static final String ROW_GROUP_SIZE = "row_group_size";
  public static final String PAGE_SIZE = "page_size";

  public static final String DEFAULT_DELTA_TYPE = "default_delta_type";
  public static final String PROPERTIES = "properties";

  private JsonFormatConstant() {}
}