If you pass a "callable" as a dependency in **FastAPI**, it will analyze the parameters for that "callable", and process them in the same way as the parameters for a *path operation function*. Including sub-dependencies.

That also applies to callables with no parameters at all. The same as it would be for *path operation functions* with no parameters.

Then, we can change the dependency "dependable" `common_parameters` from above to the class `CommonQueryParams`:

        }
    }

    /**
     * Constructs the file path for the Python script to execute.
     * The path is relative to the web application root and follows the pattern:
     * WEB-INF/env/python/resources/{filename}
     *
     * @return the constructed file path for the Python script
     */
    protected String getPyFilePath() {

        assertFalse(AdminLogAction.isLogFilename(""));
    }

    @Test
    public void test_isLogFilename_withPathSeparators() {
        // isLogFilename only checks the file extension, not path components
        assertTrue(AdminLogAction.isLogFilename("subdir/fess.log"));
        assertTrue(AdminLogAction.isLogFilename("../fess.log"));
    }

    return classLoader instanceof URLClassLoader
        ? ((URLClassLoader) classLoader).getURLs()
        : parseJavaClassPath().toArray(new URL[0]);
  }

  /**
   * Returns the URLs in the class path specified by the {@code java.class.path} {@linkplain
   * System#getProperty system property}.
   */
  // TODO(b/65488446): Make this a public API.
  @J2ktIncompatible
  private static ImmutableList<URL> parseJavaClassPath() {

{
    "properties": {
      "thumbnail_id": {
        "type": "keyword"
      },
      "path": {
        "type": "keyword"
      },
      "generator": {
        "type": "keyword"
      },
      "target": {
        "type": "keyword"
      },
      "createdTime": {
        "type": "long"
      },
      "createdBy": {
        "type": "keyword"
      }
    }

    * ユーザーがクエリ`q`を提供しなかった場合、クッキーに保存していた最後に使用したクエリを使用します。

## 依存関係の使用 { #use-the-dependency }

以下のように依存関係を使用することができます:

{* ../../docs_src/dependencies/tutorial005_an_py310.py hl[23] *}

/// info | 情報

*path operation 関数*の中で宣言している依存関係は`query_or_cookie_extractor`の1つだけであることに注意してください。

しかし、**FastAPI** は`query_extractor`を最初に解決し、その結果を`query_or_cookie_extractor`を呼び出す時に渡す必要があることを知っています。

///

```mermaid
graph TB

      uses: actions/checkout@v6
      # Checkout must run before the caching key is computed using the `hashFiles` method

    - name: Cache Gradle Modules
      uses: actions/cache@v5
      with:
        path: |
          ~/.gradle/caches/modules-2/
          ~/.gradle/caches/build-cache-1/
          ~/.gradle/caches/signatures/
          ~/.gradle/caches/keyrings/

    assertThat(effectiveHost, "host").isEqualTo(testData.host)
    assertThat(effectivePort, "port").isEqualTo(testData.port)
    assertThat(url.encodedPath, "path").isEqualTo(testData.path)
    assertThat(effectiveQuery, "query").isEqualTo(testData.query)
    assertThat(effectiveFragment, "fragment").isEqualTo(testData.fragment)
  }

  companion object {

The normal (default) process, is as follows.

A `FastAPI` application (instance) has an `.openapi()` method that is expected to return the OpenAPI schema.

As part of the application object creation, a *path operation* for `/openapi.json` (or for whatever you set your `openapi_url`) is registered.

It just returns a JSON response with the result of the application's `.openapi()` method.

    //                                                                          Definition
    //                                                                          ==========
    public static final String PATH = "log_notification.dfmail";

    // ===================================================================================
    //                                                                         Entry Point