ambari-server/src/main/java/org/apache/ambari/server/controller/spi/TemporalInfo.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.ambari.server.controller.spi;

/**
 * Temporal query data.
 */
public interface TemporalInfo {
  /**
   * Get the start of the requested time range.  The time is given in
   * seconds since the Unix epoch.
   *
   * @return the start time in seconds
   */
  Long getStartTime();

  /**
   * Get the end of the requested time range.  The time is given in
   * seconds since the Unix epoch.
   *
   * @return the end time in seconds
   */
  Long getEndTime();

  /**
   * Get the requested time between each data point of the temporal
   * data.  The time is given in seconds.
   *
   * @return the step time in seconds
   */
  Long getStep();
}