* @param id the document ID to update
     * @param field the field name to update
     * @param value the new value for the field
     * @return true if the update was successful, false otherwise
     */
    public boolean updateDocument(final SearchEngineClient searchEngineClient, final String id, final String field, final Object value) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();

                sums.put(extension, observer.getActualChecksum());
            }

            // We do this in here so we can checksum the artifact metadata too, otherwise it could be metadata itself
            for (String extension : checksums.keySet()) {
                // TODO shouldn't need a file intermediary - improve wagon to take a stream

     *
     * @param id The document ID to update
     * @param field The field name to update
     * @param value The new value for the field
     * @return true if the update was successful, false otherwise
     */
    public boolean update(final String id, final String field, final Object value) {

        }

    }

    /**
     * Checks if a URL is new.
     *
     * @param urlQueue The URL queue.
     * @param urlQueueList The list of URL queues.
     * @return true if the URL is new, otherwise false.
     */
    protected boolean isNewUrl(final UrlQueueImpl<Long> urlQueue, final Queue<UrlQueueImpl<Long>> urlQueueList) {

        final String url = urlQueue.getUrl();
        if (StringUtil.isBlank(url)) {

        this.contextFlags = contextFlags;
    }

    /**
     * Checks if a specific context flag is set
     * @param flag the context flag to check
     * @return true if the flag is set, false otherwise
     */
    public boolean getContextFlag(final int flag) {
        return (getContextFlags() & flag) == flag;
    }

    /**
     * Sets or clears a specific context flag

    }

    /**
     * Retrieves a specific failure URL by its ID.
     *
     * @param id the unique identifier of the failure URL
     * @return an OptionalEntity containing the FailureUrl if found, empty otherwise
     */
    public OptionalEntity<FailureUrl> getFailureUrl(final String id) {
        return failureUrlBhv.selectByPK(id);
    }

    /**
     * Stores or updates a failure URL entity in the data store.
     *

   * associated with that range is returned.
   */
  @Nullable V get(K key);

  /**
   * Returns the range containing this key and its associated value, if such a range is present in
   * the range map, or {@code null} otherwise.
   */
  @Nullable Entry<Range<K>, V> getEntry(K key);

  /**
   * Returns the minimal range {@linkplain Range#encloses(Range) enclosing} the ranges in this
   * {@code RangeMap}.
   *

      /*
       * Using weak references here could let us release exceptions earlier, but:
       *
       * 1. On Android, querying a WeakReference blocks if the GC is doing an otherwise-concurrent
       * pass.
       *
       * 2. We would probably choose to compare exceptions using == instead of equals() (for

    [some annotation-only dependencies][guava-deps], which we discuss in more
    detail at that link.

4.  Serialized forms of ALL objects are subject to change unless noted
    otherwise. Do not persist these and assume they can be read by a future
    version of the library.

5.  Our classes are not designed to protect against a malicious caller. You

 * using a lock, however it is dangerous to dispatch listeners while holding a lock because they
 * might run on the {@code directExecutor()} or be otherwise re-entrant (call back into your
 * object). So it is important to not call {@link #dispatch} while holding any locks. This is why
 * {@link #enqueue} and {@link #dispatch} are 2 different methods. It is expected that the decision