001// Copyright (c) FIRST and other WPILib contributors.
002// Open Source Software; you can modify and/or share it under the terms of
003// the WPILib BSD license file in the root directory of this project.
004
005// THIS FILE WAS AUTO-GENERATED BY ./ntcore/generate_topics.py. DO NOT MODIFY
006
007package edu.wpi.first.networktables;
008
009import java.util.function.Supplier;
010
011/** NetworkTables DoubleArray subscriber. */
012@SuppressWarnings("PMD.MissingOverride")
013public interface DoubleArraySubscriber extends Subscriber, Supplier<double[]> {
014  /**
015   * Get the corresponding topic.
016   *
017   * @return Topic
018   */
019  @Override
020  DoubleArrayTopic getTopic();
021
022  /**
023   * Get the last published value.
024   * If no value has been published, returns the stored default value.
025   *
026   * @return value
027   */
028  double[] get();
029
030  /**
031   * Get the last published value.
032   * If no value has been published, returns the passed defaultValue.
033   *
034   * @param defaultValue default value to return if no value has been published
035   * @return value
036   */
037  double[] get(double[] defaultValue);
038
039  /**
040   * Get the last published value along with its timestamp
041   * If no value has been published, returns the stored default value and a
042   * timestamp of 0.
043   *
044   * @return timestamped value
045   */
046  TimestampedDoubleArray getAtomic();
047
048  /**
049   * Get the last published value along with its timestamp
050   * If no value has been published, returns the passed defaultValue and a
051   * timestamp of 0.
052   *
053   * @param defaultValue default value to return if no value has been published
054   * @return timestamped value
055   */
056  TimestampedDoubleArray getAtomic(double[] defaultValue);
057
058  /**
059   * Get an array of all value changes since the last call to readQueue.
060   * Also provides a timestamp for each value.
061   *
062   * <p>The "poll storage" subscribe option can be used to set the queue
063   * depth.
064   *
065   * @return Array of timestamped values; empty array if no new changes have
066   *     been published since the previous call.
067   */
068  TimestampedDoubleArray[] readQueue();
069
070  /**
071   * Get an array of all value changes since the last call to readQueue.
072   *
073   * <p>The "poll storage" subscribe option can be used to set the queue
074   * depth.
075   *
076   * @return Array of values; empty array if no new changes have been
077   *     published since the previous call.
078   */
079  double[][] readQueueValues();
080}