# Ek Modeller { #extra-models }

Önceki örnekten devam edersek, birbiriyle ilişkili birden fazla modelin olması oldukça yaygındır.

Bu durum özellikle kullanıcı modellerinde sık görülür, çünkü:

* **input modeli** bir `password` içerebilmelidir.
* **output modeli** `password` içermemelidir.
* **database modeli** büyük ihtimalle hash'lenmiş bir `password` tutmalıdır.

/// danger | Tehlike

# 額外的模型 { #extra-models }

延續前一個範例，通常會有不只一個彼此相關的模型。

對使用者模型尤其如此，因為：

* 「輸入模型」需要能包含密碼。
* 「輸出模型」不應包含密碼。
* 「資料庫模型」通常需要儲存雜湊後的密碼。

/// danger

切勿儲存使用者的明文密碼。務必只儲存可供驗證的「安全雜湊」。

若你還不清楚，稍後會在[安全性章節](security/simple-oauth2.md#password-hashing)學到什麼是「密碼雜湊」。

///

## 多個模型 { #multiple-models }

以下是模型大致長相、與其密碼欄位以及它們被使用的位置：

{* ../../docs_src/extra_models/tutorial001_py310.py hl[7,9,14,20,22,27:28,31:33,38:39] *}

 *       ImmutableSet.of("AZ", "CQ", "ZX");
 *
 *   private final ImmutableSet<String> codes;
 *
 *   public Foo(Iterable<String> codes) {
 *     this.codes = ImmutableSet.copyOf(codes);
 *     checkArgument(Collections.disjoint(this.codes, RESERVED_CODES));
 *   }
 * }
 * }
 *
 * <h3>See also</h3>
 *
 * <p>See the Guava User Guide article on <a href=

			<cutdirsmapper dirs="1" />
		</unzip>
	</target>

	<target name="remove.jars" if="with.fess">
		<delete>
			<fileset dir="${plugins.dir}">
				<include name="configsync/commons-codec-*" />
				<include name="dataformat/commons-codec-*" />
				<include name="dataformat/commons-collections4-*" />
				<include name="dataformat/commons-compress-*" />
				<include name="dataformat/commons-math3-*" />

                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.SRV_ERR, "ERR_NAM_SRVC/Unknown error code: 2"),
                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.IMP_ERR, "ERR_NAM_SRVC/Unknown error code: 4"),
                Arguments.of(NbtException.ERR_NAM_SRVC, NbtException.RFS_ERR, "ERR_NAM_SRVC/Unknown error code: 5"),

   * ThreadLocal holding a single-slot int array holding hash code. Unlike the JDK8 version of this
   * class, we use a suboptimal int[] representation to avoid introducing a new type that can impede
   * class-unloading when ThreadLocals are not removed.
   */
  static final ThreadLocal<int @Nullable []> threadHashCode = new ThreadLocal<>();

  /** Generator of new random hash codes */
  static final Random rng = new Random();

Using the below example document:
<img width="85%" src="https://bradley.codes/static/img/jstream-levels.gif" alt="jstream"/>

we can choose to extract and act only the objects within the top-level array:
```go
f, _ := os.Open("input.json")

        HTTP_GONE,
        HTTP_REQ_TOO_LONG,
        HTTP_NOT_IMPLEMENTED,
        HTTP_PERM_REDIRECT,
        -> {
          // These codes can be cached unless headers forbid it.
        }

        HTTP_MOVED_TEMP,
        HTTP_TEMP_REDIRECT,
        -> {
          // These codes can only be cached with the right response headers.
          // http://tools.ietf.org/html/rfc7234#section-3

 */

package jcifs.smb;

/**
 * Interface defining NT status codes used in SMB protocol operations.
 * These status codes are returned by SMB servers to indicate the result
 * of requested operations. The codes follow the Windows NT status code format.
 */
public interface NtStatus {

    /*
     * Don't bother to edit this. Everything within the interface

    /** Whether to force Unicode usage */
    boolean FORCE_UNICODE = Config.getBoolean("jcifs.smb1.smb.client.useUnicode", false);
    /** Whether to use NT status codes */
    boolean USE_NTSTATUS = Config.getBoolean("jcifs.smb1.smb.client.useNtStatus", true);
    /** Whether signing is preferred */
    boolean SIGNPREF = Config.getBoolean("jcifs.smb1.smb.client.signingPreferred", false);