/*
 * 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.external.api;

import java.util.Properties;

/**
 * An interface to load properties from external properties file to override the default
 * configurations.
 */
public interface IPropertiesLoader {
  /**
   * Load Properties from specific file.
   *
   * @return a property list with values in file.
   */
  Properties loadProperties();

  /**
   * some properties that iotdb does not use by default.
   *
   * @return properties.
   */
  Properties getCustomizedProperties();
}
