Enum Class CaptchaType

java.lang.Object
java.lang.Enum<CaptchaType>
cloud.opencode.base.captcha.CaptchaType
All Implemented Interfaces:
Serializable, Comparable<CaptchaType>, Constable
public enum CaptchaType extends Enum<CaptchaType>
Captcha Type - Enumeration of supported CAPTCHA types 验证码类型 - 支持的验证码类型枚举

This enum defines all available CAPTCHA generation types.

此枚举定义了所有可用的验证码生成类型。

Features | 主要功能:

  • Text-based types: NUMERIC, ALPHA, ALPHANUMERIC, ARITHMETIC, CHINESE - 文本类型
  • Animated type: GIF - 动画类型
  • Interactive types: SLIDER, CLICK, ROTATE, IMAGE_SELECT, JIGSAW - 交互式类型
  • Audio type: AUDIO - 音频类型
  • Invisible type: POW - 无感类型
  • Type classification helpers (isInteractive, isTextBased, isAudio, isInvisible) - 类型分类辅助方法

Usage Examples | 使用示例:

CaptchaType type = CaptchaType.ALPHANUMERIC;
boolean interactive = type.isInteractive(); // false
boolean textBased = type.isTextBased();     // true

Captcha captcha = OpenCaptcha.create(type);

Security | 安全性:

  • Thread-safe: Yes (immutable enum) - 线程安全: 是（不可变枚举）
  • Null-safe: N/A - 空值安全: 不适用
Since:
JDK 25, opencode-base-captcha V1.0.3
Author:
Leon Soo www.LeonSoo.com
See Also:

  • Nested Class Summary

    Nested classes/interfaces inherited from class Enum

    Enum.EnumDesc<E>

  • Enum Constant Summary

    Enum Constants
    Enum Constant
    Description
    ALPHA
    Alphabetic CAPTCHA (letters only) 字母验证码（仅字母）
    ALPHANUMERIC
    Alphanumeric CAPTCHA (letters and digits) 字母数字验证码（字母和数字）
    ARITHMETIC
    Arithmetic CAPTCHA (math expression) 算术验证码（数学表达式）
    AUDIO
    Audio CAPTCHA (audio challenge) 音频验证码（音频挑战）
    CHINESE
    Chinese CAPTCHA (Chinese characters) 中文验证码（中文字符）
    CLICK
    Click CAPTCHA (click specific areas) 点击验证码（点击特定区域）
    GIF
    GIF animated CAPTCHA GIF 动画验证码
    IMAGE_SELECT
    Image selection CAPTCHA (select matching images) 图片选择验证码（选择匹配的图片）
    JIGSAW
    Jigsaw CAPTCHA (puzzle piece ordering) 拼接验证码（碎片排序）
    NUMERIC
    Numeric CAPTCHA (digits only) 数字验证码（仅数字）
    POW
    Proof-of-Work CAPTCHA (invisible computation) 工作量证明验证码（无感计算）
    ROTATE
    Rotate CAPTCHA (rotate to correct angle) 旋转验证码（旋转到正确角度）
    SLIDER
    Slider CAPTCHA (drag to verify) 滑块验证码（拖动验证）

  • Method Summary

    Modifier and Type
    Method
    Description
    boolean
    isAudio()
    Checks if this type is an audio CAPTCHA.
    boolean
    isInteractive()
    Checks if this type is an interactive CAPTCHA.
    boolean
    isInvisible()
    Checks if this type is invisible (no user interaction).
    boolean
    isTextBased()
    Checks if this type is a text-based CAPTCHA.
    static CaptchaType
    valueOf(String name)
    Returns the enum constant of this class with the specified name.
    static CaptchaType[]
    values()
    Returns an array containing the constants of this enum class, in the order they are declared.

    Methods inherited from class Enum

    clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

    Methods inherited from class Object

    getClass, notify, notifyAll, wait, wait, wait

  • Enum Constant Details

    • NUMERIC

      public static final CaptchaType NUMERIC
      Numeric CAPTCHA (digits only) 数字验证码（仅数字）

    • ALPHA

      public static final CaptchaType ALPHA
      Alphabetic CAPTCHA (letters only) 字母验证码（仅字母）

    • ALPHANUMERIC

      public static final CaptchaType ALPHANUMERIC
      Alphanumeric CAPTCHA (letters and digits) 字母数字验证码（字母和数字）

    • ARITHMETIC

      public static final CaptchaType ARITHMETIC
      Arithmetic CAPTCHA (math expression) 算术验证码（数学表达式）

    • CHINESE

      public static final CaptchaType CHINESE
      Chinese CAPTCHA (Chinese characters) 中文验证码（中文字符）

    • GIF

      public static final CaptchaType GIF
      GIF animated CAPTCHA GIF 动画验证码

    • SLIDER

      public static final CaptchaType SLIDER
      Slider CAPTCHA (drag to verify) 滑块验证码（拖动验证）

    • CLICK

      public static final CaptchaType CLICK
      Click CAPTCHA (click specific areas) 点击验证码（点击特定区域）

    • ROTATE

      public static final CaptchaType ROTATE
      Rotate CAPTCHA (rotate to correct angle) 旋转验证码（旋转到正确角度）

    • IMAGE_SELECT

      public static final CaptchaType IMAGE_SELECT
      Image selection CAPTCHA (select matching images) 图片选择验证码（选择匹配的图片）

    • AUDIO

      public static final CaptchaType AUDIO
      Audio CAPTCHA (audio challenge) 音频验证码（音频挑战）

    • JIGSAW

      public static final CaptchaType JIGSAW
      Jigsaw CAPTCHA (puzzle piece ordering) 拼接验证码（碎片排序）

    • POW

      public static final CaptchaType POW
      Proof-of-Work CAPTCHA (invisible computation) 工作量证明验证码（无感计算）

  • Method Details

    • values

      public static CaptchaType[] values()
      Returns an array containing the constants of this enum class, in the order they are declared.
      Returns:
      an array containing the constants of this enum class, in the order they are declared

    • valueOf

      public static CaptchaType valueOf(String name)
      Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (Extraneous whitespace characters are not permitted.)
      Parameters:
      name - the name of the enum constant to be returned.
      Returns:
      the enum constant with the specified name
      Throws:
      IllegalArgumentException - if this enum class has no constant with the specified name
      NullPointerException - if the argument is null

    • isInteractive

      public boolean isInteractive()
      Checks if this type is an interactive CAPTCHA. 检查此类型是否为交互式验证码。
      Returns:
      true if interactive | 如果是交互式则返回 true

    • isTextBased

      public boolean isTextBased()
      Checks if this type is a text-based CAPTCHA. 检查此类型是否为文本验证码。
      Returns:
      true if text-based | 如果是文本类型则返回 true

    • isAudio

      public boolean isAudio()
      Checks if this type is an audio CAPTCHA. 检查是否为音频验证码。
      Returns:
      true if audio | 如果是音频验证码则返回 true

    • isInvisible

      public boolean isInvisible()
      Checks if this type is invisible (no user interaction). 检查是否为无感验证码。
      Returns:
      true if invisible | 如果是无感验证码则返回 true