entity_generic-8.x-3.x-dev/src/Generic/EntityLockedTrait.php

<?php

namespace Drupal\entity_generic\Generic;

/**
 * Implements "locked" functionality for the entity.
 */
trait EntityLockedTrait {

  /**
   * A locked state.
   *
   * @var string
   */
  protected $locked;

  /**
   * {@inheritdoc}
   */
  public function isLocked() {
    return (bool) $this->locked ? $this->locked : FALSE;
  }

  /**
   * {@inheritdoc}
   */
  public function setLock($locker) {
    return $this->set('locker', $locker);
  }

  /**
   * {@inheritdoc}
   */
  public function releaseLock() {
    return $this->set('locker', NULL);
  }

}