次の章では、関数以外の「もの」が依存関係として使用できるものを見ていきます。

///

新しいリクエストが到着するたびに、**FastAPI** が以下のような処理を行います:

* 依存関係（"dependable"）関数を正しいパラメータで呼び出します。
* 関数の結果を取得します。
* *path operation関数*のパラメータにその結果を代入してください。

```mermaid
graph TB

common_parameters(["common_parameters"])
read_items["/items/"]
read_users["/users/"]

common_parameters --> read_items
common_parameters --> read_users
```

  /**
   * Sets.cartesianProduct doesn't allow sets that contain null, but we want null to mean "don't
   * call the associated CacheBuilder method" - that is, get the default CacheBuilder behavior. This
   * method wraps the elements in the input sets (which may contain null) as Optionals, calls
   * Sets.cartesianProduct with those, then transforms the result to unwrap the Optionals.
   */

import jcifs.CIFSException;
import jcifs.DfsReferralData;
import jcifs.SmbSession;
import jcifs.SmbTransport;
import jcifs.smb.SmbException;
import jcifs.smb.SmbTransportInternal;

/**
 * RDMA-enabled SMB transport that wraps existing SMB transport
 * and adds RDMA capabilities for direct memory access operations.
 */
public class RdmaTransport implements SmbTransportInternal {

     * @param artifact artifact for which to get the dependencies, including transitive ones
     * @param scope the {link PathScope} to collect dependencies, must not be {@code null}
     * @return root node of the dependency graph for the given artifact
     *
     * @see org.apache.maven.api.services.DependencyResolver#collect(Session, Artifact, PathScope)

        // Assert
        assertEquals(HTTP_UNAUTHORIZED, responseCode);
        // Since we don't use NTLM, no reconnection should happen
    }

    /**
     * Test that getOutputStream() returns a CacheStream that wraps the underlying stream.
     * @throws IOException
     */
    @Test
    void testGetOutputStreamCachesData() throws IOException {
        // Arrange
        // Enable output mode

import jcifs.ntlmssp.NtlmMessage;
import jcifs.ntlmssp.Type1Message;
import jcifs.ntlmssp.Type2Message;
import jcifs.ntlmssp.Type3Message;
import jcifs.smb.NtlmPasswordAuthentication;

/**
 * Wraps an <code>HttpURLConnection</code> to provide NTLM authentication
 * services.
 *
 * Please read <a href="../../../httpclient.html">Using jCIFS NTLM Authentication for HTTP Connections</a>.
 *

                Arguments.of(loc, new IOException("io failed")));
    }

    @ParameterizedTest(name = "connectWrapException wraps {1} into SmbException")
    @MethodSource("wrapExceptions")
    void connectWrapException_wrapsToSmbException(SmbResourceLocatorImpl loc, Exception thrown) throws Exception {

                amount += len;
            }
            return amount;
        } catch (final IOException e) {
            throw new IORuntimeException(e);
        }
    }

    /**
     * Wraps the input stream with a {@link BufferedInputStream} if necessary.
     *
     * @param is the input stream
     * @return the wrapped input stream
     */
    protected static InputStream wrap(final InputStream is) {

    this.delegate = checkNotNull(delegate);
  }

  @Override
  protected Map<Class<? extends @NonNull B>, B> delegate() {
    return delegate;
  }

  /**
   * Wraps the {@code setValue} implementation of an {@code Entry} to enforce the class constraint.
   */
  private static <B extends @Nullable Object> Entry<Class<? extends @NonNull B>, B> checkedEntry(

* Zelfs dependencies kunnen dependencies hebben, waardoor een hiërarchie of **“graph” van dependencies** ontstaat.
* Allemaal **automatisch afgehandeld** door het framework.
* Alle dependencies kunnen data nodig hebben van request, de vereiste **padoperaties veranderen** en automatische documentatie verstrekken.