private int mode;
    private long offset;

    /**
     * Sets the file identifier.
     *
     * @param fid
     *            the fid to set
     */
    public void setFid(final int fid) {
        this.fid = fid;
    }

    /**
     * Sets the seek mode.
     *
     * @param mode
     *            the mode to set
     */
    public final void setMode(final int mode) {
        this.mode = mode;

    }

    /**
     * Sets the DataService instance for the current thread.
     * If the provided DataService is null, it removes the DataService from the current thread's local storage.
     * Otherwise, it sets the provided DataService to the current thread's local storage.
     *
     * @param dataService the DataService instance to be set for the current thread, or null to remove it
     */

            return false;
        }
        return true;
    }

    /**
     * Returns a set of matched label values.
     *
     * @param path The path to match.
     * @return A set of matched label values.
     */
    public Set<String> getMatchedLabelValueSet(final String path) {
        if (labelTypePatternList == null) {
            synchronized (this) {

        }
        return pageSize;
    }

    /**
     * Sets the number of records to display per page.
     *
     * @param pageSize The page size to set
     */
    public void setPageSize(final int pageSize) {
        this.pageSize = pageSize;
    }

    /**
     * Gets the current page number (1-based).
     * If not set or invalid, returns the default current page number.
     *

    protected String[] sortFields;

    /** Set of fields that can be used for sorting for O(1) lookup */
    protected Set<String> sortFieldSet;

    /** Set of fields that are allowed in API responses */
    protected Set<String> apiResponseFieldSet;

    /** Set of fields that are not analyzed during indexing */
    protected Set<String> notAnalyzedFieldSet;

    }

    /**
     * Sets the file information class for the directory query
     *
     * @param fileInformationClass
     *            the fileInformationClass to set
     */
    public void setFileInformationClass(final byte fileInformationClass) {
        this.fileInformationClass = fileInformationClass;
    }

    /**
     * Sets the query flags for the directory enumeration
     *

    }

    /**
     * Sets the maximum number of duplicated paths to attempt.
     *
     * @param maxDuplicatedPath the maximum duplicated path count to set
     */
    public void setMaxDuplicatedPath(final int maxDuplicatedPath) {
        this.maxDuplicatedPath = maxDuplicatedPath;
    }

    /**
     * Gets the character set name used for encoding file paths.
     *

    }

    /**
     * Gets the total number of records in the result set.
     *
     * @return the total record count
     */
    public int getAllRecordCount() {
        return allRecordCount;
    }

    /**
     * Sets the total number of records in the result set.
     *
     * @param allRecordCount the total record count
     */

    }

    @Override
    public void close() {
        isFinished.set(true);
        queue.clear();
    }

    /**
     * Sets the scroll size.
     * @param scrollSize The scroll size.
     */
    public void setScrollSize(final int scrollSize) {
        this.scrollSize = scrollSize;
    }

    /**
     * Sets the limit of document size.

    assertEquals(set.comparator(), copy.comparator());
  }

  @GwtIncompatible // SerializableTester
  public void testSeveral_serialization() {
    SortedSet<String> set = new SafeTreeSet<>();
    set.add("a");
    set.add("b");
    set.add("c");
    SortedSet<String> copy = SerializableTester.reserializeAndAssert(set);
    assertEquals(set.comparator(), copy.comparator());
  }