return new SampleElements<>(1, 4, 3, 2, 5);
    }

    @Override
    public Integer[] createArray(int length) {
      return new Integer[length];
    }

    @Override
    public Iterable<Integer> order(List<Integer> insertionOrder) {
      return Ordering.natural().sortedCopy(insertionOrder);
    }

    @Override
    public Set<Integer> create(Object... elements) {

    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
    # o isCheckColumnDefOrderDiff: (NotRequired - Default false)
    #  Does it check differences of column-def order?
    #  (except added or deleted columns)
    #
    #; isCheckColumnDefOrderDiff = false
    # - - - - - - - - - -/

    # /- - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

    @SuppressWarnings("unchecked")
    public Entry<Class, Impl>[] createArray(int length) {
      return (Entry<Class, Impl>[]) new Entry<?, ?>[length];
    }

    @Override
    public Iterable<Entry<Class, Impl>> order(List<Entry<Class, Impl>> insertionOrder) {
      return insertionOrder;
    }
  }

  private interface One {}

  private interface Two {}

  private interface Three {}

   * {@code EnumBiMap}, the new bimap has the same types as the provided map. Otherwise, the
   * specified map must contain at least one mapping, in order to determine the key and value types.
   *
   * @param map the map whose mappings are to be placed in this map
   * @throws IllegalArgumentException if map is not an {@code EnumBiMap} instance and contains no
   *     mappings

   *
   * <p>Currently, this method is invoked while holding a lock. If an implementation of this method
   * blocks, it can prevent this service from changing state. If you need to performing a blocking
   * operation in order to trigger shutdown, consider instead registering a listener and
   * implementing {@code stopping}. Note, however, that {@code stopping} does not run at exactly the
   * same times as {@code triggerShutdown}.
   */

 * before they are indexed. Ingesters can be used to modify document content,
 * extract additional metadata, or perform other transformations during the
 * indexing process.
 *
 * Ingesters are processed in priority order, with lower numbers having higher priority.
 */
public abstract class Ingester {

    /** Priority of this ingester (lower numbers = higher priority) */
    protected int priority = 99;

    /**

                    return new StandardImplForwardingSortedSet<>(
                        new SafeTreeSet<String>(asList(elements)));
                  }

                  @Override
                  public List<String> order(List<String> insertionOrder) {
                    return new ArrayList<>(Sets.newTreeSet(insertionOrder));
                  }
                })

    ByteBuffer scratch = scratch();
    scratch.putChar(c);
    return update(scratch, Chars.BYTES);
  }

  private ByteBuffer scratch() {
    if (scratch == null) {
      scratch = ByteBuffer.allocate(8).order(ByteOrder.LITTLE_ENDIAN);
    }
    return scratch;
  }

**ResponseProcessor**: `DefaultResponseProcessor`, `SitemapsResponseProcessor`, `NullResponseProcessor`
**Transformer**: `HtmlTransformer`, `XmlTransformer`, `FileTransformer`, etc.
**Extractor**: Weight-based selection (tries in descending weight order)

### Key Extractors

`TikaExtractor` (1000+ formats), `PdfExtractor`, `MsWordExtractor`, `MsExcelExtractor`, `MsPowerPointExtractor`, `ZipExtractor`, `HtmlExtractor`, etc.

**Registration**:
```java

    /** The regex pattern. */
    public String regex;

    /** The replacement string. */
    public String replacement;

    /** The process type. */
    public String processType;

    /** The sort order. */
    public String sortOrder;

    /** The creator. */
    public String createdBy;

    /** The creation time. */
    public String createdTime;

    /** The version number. */