TunableBase.java

// Copyright (c) FIRST and other WPILib contributors.
// Open Source Software; you can modify and/or share it under the terms of
// the WPILib BSD license file in the root directory of this project.
 
package org.wpilib.tunable;

@SuppressWarnings("PMD.AbstractClassWithoutAbstractMethod")
public abstract class TunableBase {
  private final TunableConfig m_config;
  private final boolean m_supportsChangeNotification;

  protected boolean m_changed;

  protected TunableBase(TunableConfig config) {
    this(config, false);
  }

  protected TunableBase(TunableConfig config, boolean supportsChangeNotification) {
    m_config = config;
    m_supportsChangeNotification = supportsChangeNotification;
  }

  public boolean isRobust() {
    return m_config != null && m_config.isRobust();
  }

  public String getProperties() {
    return m_config == null ? "{}" : m_config.getProperties();
  }

  public TunableConfig getConfig() {
    return m_config;
  }

  public boolean hasChanged() {
    return m_changed;
  }

  public boolean supportsChangeNotification() {
    return m_supportsChangeNotification;
  }

  protected void markChanged() {
    if (!m_changed) {
      m_changed = true;
      if (m_supportsChangeNotification) {
        TunableRegistry.notifyChanged(this);
      }
    }
  }

  public void resetChanged() {
    m_changed = false;
  }
}