## Valeurs prédéfinies

Si vous avez une *fonction de chemin* qui reçoit un *paramètre de chemin*, mais que vous voulez que les valeurs possibles des paramètres soient prédéfinies, vous pouvez utiliser les <abbr title="Enumeration">`Enum`</abbr> de Python.

### Création d'un `Enum`

   *
   * @param file the file to read from
   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants
   * @return the buffered reader
   */
  public static BufferedReader newReader(File file, Charset charset) throws FileNotFoundException {
    checkNotNull(file);
    checkNotNull(charset);

   *
   * @param file the file to read from
   * @param charset the charset used to decode the input stream; see {@link StandardCharsets} for
   *     helpful predefined constants
   * @return the buffered reader
   */
  public static BufferedReader newReader(File file, Charset charset) throws FileNotFoundException {
    checkNotNull(file);
    checkNotNull(charset);

    }

    public void test_predefinedConstants() {
        // Test predefined constants
        assertEquals("resourceName", ExtractData.RESOURCE_NAME_KEY);
        assertEquals("url", ExtractData.URL);
        assertEquals("file.passwords", ExtractData.FILE_PASSWORDS);
    }

    public void test_usingPredefinedConstants() {
        // Test using predefined constants
        ExtractData data = new ExtractData();

     * of the same type exist in the container, the one with the highest
     * priority value will be selected for injection.
     * <p>
     * There are no predefined minimum or maximum values, but it's recommended
     * to use values that allow for future adjustments (e.g., using values
     * like 100, 200, 300 rather than consecutive numbers).
     *

import java.util.LinkedHashMap;
import java.util.Map;

import org.codelibs.fess.crawler.exception.CrawlerSystemException;

/**
 * Helper class for converting URLs based on a set of predefined rules.
 *
 * <p>This class provides functionality to convert URLs by replacing parts of the URL
 * based on a map of target strings and their corresponding replacements. It allows

    pidpath=$1
    daemonized=$2
    props=$3
    fess_parms="-Dfess"

    if [ "x$pidpath" != "x" ]; then
        fess_parms="$fess_parms -Dfess.pidfile=$pidpath"
    fi

    # Make sure we don't use any predefined locale, as we check some exception message strings and rely on english language
    # As those strings are created by the OS, they are dependent on the configured locale
    LANG=en_US.UTF-8
    LC_ALL=en_US.UTF-8

* `skip`, ein `int` mit einem Defaultwert `0`.
* `limit`, ein optionales `int`.

/// tip | Tipp

Sie können auch `Enum`s verwenden, auf die gleiche Weise wie mit [Pfad-Parametern](path-params.md#predefined-values){.internal-link target=_blank}.

* `needy`, a required `str`.
* `skip`, an `int` with a default value of `0`.
* `limit`, an optional `int`.

/// tip

You could also use `Enum`s the same way as with [Path Parameters](path-params.md#predefined-values){.internal-link target=_blank}.

* `skip`, `int` зі значенням за замовчуванням `0`.
* `limit`, опціональний `int`.


/// tip | Підказка

Ви також можете використовувати `Enum`-и, так само як і з [Path Parameters](path-params.md#predefined-values){.internal-link target=_blank}.