Interface FormField

All Known Subinterfaces:
CheckBox, ComboBox, ListBox, RadioButton, SignatureField, TextField
public sealed interface FormField permits TextField, CheckBox, RadioButton, ComboBox, ListBox, SignatureField
Form Field Base - Common interface for all form field types 表单字段基类 - 所有表单字段类型的公共接口

Sealed interface permitting known form field types.

密封接口，仅允许已知的表单字段类型。

Features | 主要功能:

  • Common field properties (name, type, value, tooltip) - 通用字段属性（名称、类型、值、提示）
  • Field state queries (required, read-only) - 字段状态查询（必填、只读）
  • Position and size via rectangle - 通过矩形获取位置和大小
  • Sealed hierarchy for type-safe processing - 密封层次结构用于类型安全处理

Usage Examples | 使用示例:

FormField field = form.getField("name");
String value = field.getValue();
field.setValue("New Value");
boolean required = field.isRequired();

Security | 安全性:

  • Thread-safe: Depends on implementation - 线程安全: 取决于实现
  • Null-safe: Depends on implementation - 空值安全: 取决于实现
Since:
JDK 25, opencode-base-pdf V1.0.0
Author:
Leon Soo www.LeonSoo.com
See Also:

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static enum 
    FormField.FieldType
    Field types 字段类型

  • Method Summary

    Modifier and Type
    Method
    Description
    String
    getName()
    Gets field name 获取字段名
    float[]
    getRectangle()
    Gets field rectangle (position and size) 获取字段矩形（位置和大小）
    String
    getTooltip()
    Gets field tooltip 获取字段工具提示
    FormField.FieldType
    getType()
    Gets field type 获取字段类型
    String
    getValue()
    Gets field value 获取字段值
    boolean
    isReadOnly()
    Checks if field is read-only 检查字段是否只读
    boolean
    isRequired()
    Checks if field is required 检查字段是否必填
    void
    setValue(String value)
    Sets field value 设置字段值

  • Method Details

    • getName

      String getName()
      Gets field name 获取字段名
      Returns:
      field name | 字段名

    • getType

      FormField.FieldType getType()
      Gets field type 获取字段类型
      Returns:
      field type | 字段类型

    • getValue

      String getValue()
      Gets field value 获取字段值
      Returns:
      field value | 字段值

    • setValue

      void setValue(String value)
      Sets field value 设置字段值
      Parameters:
      value - new value | 新值

    • getTooltip

      String getTooltip()
      Gets field tooltip 获取字段工具提示
      Returns:
      tooltip text | 工具提示文本

    • isRequired

      boolean isRequired()
      Checks if field is required 检查字段是否必填
      Returns:
      true if required | 如果必填返回 true

    • isReadOnly

      boolean isReadOnly()
      Checks if field is read-only 检查字段是否只读
      Returns:
      true if read-only | 如果只读返回 true

    • getRectangle

      float[] getRectangle()
      Gets field rectangle (position and size) 获取字段矩形（位置和大小）
      Returns:
      rectangle as [x, y, width, height] | 矩形 [x, y, 宽, 高]