/** Array of fields that can be used for sorting search results */
    protected String[] sortFields;

    /** 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;

    /** List of additional default fields with their boost values */

    Set<Integer> set2 = newHashSet(2, 3);
    Set<Integer> difference = difference(set1, set2);
    assertThat(difference).containsExactly(1);
    set1.add(0);
    assertThat(difference).containsExactly(0, 1);
    set2.remove(2);
    assertThat(difference).containsExactly(0, 1, 2);
  }

  public void testSymmetricDifference_isView() {
    Set<Integer> set1 = newHashSet(1, 2);
    Set<Integer> set2 = newHashSet(2, 3);

    }

    /**
     * Sets the flag indicating if a next page exists.
     *
     * @param existNextPage true if a next page exists, false otherwise
     */
    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

    /**
     * Gets the number of records per page.
     * If page size is not set or is invalid, returns the default page size.
     *

    }

    /**
     * Sets whether there is a next page available.
     *
     * @param existNextPage true if there is a next page, false otherwise
     */
    public void setExistNextPage(final boolean existNextPage) {
        this.existNextPage = existNextPage;
    }

    /**
     * Gets the number of records to display per page.
     * If the page size is not set or is invalid, returns the default page size.

    Collections.addAll(set, elements);
    for (E element : set) {
      checkNotNull(element);
    }

    switch (set.size()) {
      case 0:
        return of();
      case 1:
        return new SingletonImmutableSet<E>(set.iterator().next());
      default:
        return new RegularImmutableSet<E>(set);
    }
  }

  @Override

     * This method sets the job executor and then calls the abstract execute method.
     *
     * @param jobExecutor the job executor to use for execution
     * @return the execution result message or summary
     */
    public String execute(final JobExecutor jobExecutor) {
        jobExecutor(jobExecutor);
        return execute();
    }

    /**
     * Sets the job executor for this job.
     *

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

    /**
     * Sets the total number of records.
     *
     * @param allRecordCount The total record count.
     */
    public void setAllRecordCount(final int allRecordCount) {
        this.allRecordCount = allRecordCount;
    }

     * Returns the total number of records.
     *
     * @return The total number of records.
     */
    public int getAllRecordCount() {
        return allRecordCount;
    }

    /**
     * Sets the total number of records.
     *
     * @param allRecordCount The total number of records.
     */
    public void setAllRecordCount(final int allRecordCount) {
        this.allRecordCount = allRecordCount;
    }

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

    /**
     * Sets the total number of records.
     *
     * @param allRecordCount The total record count
     */
    public void setAllRecordCount(final int allRecordCount) {
        this.allRecordCount = allRecordCount;
    }

    /**
     * Gets the total number of records.
     * @return The total number of records.
     */
    public int getAllRecordCount() {
        return allRecordCount;
    }

    /**
     * Sets the total number of records.
     * @param allRecordCount The total number of records.
     */
    public void setAllRecordCount(final int allRecordCount) {
        this.allRecordCount = allRecordCount;
    }