Class PropertyConverter
java.lang.Object
cloud.opencode.base.reflect.bean.PropertyConverter
Property Type Converter
属性类型转换器
Converts property values between different types.
在不同类型之间转换属性值。
Features | 主要功能:
- String/Number/Boolean type conversions - String/Number/Boolean类型转换
- Date/Time type conversions - 日期/时间类型转换
- Enum and Collection conversions - 枚举和集合转换
- Custom converter registration - 自定义转换器注册
Usage Examples | 使用示例:
int num = PropertyConverter.convert("42", int.class);
String str = PropertyConverter.convert(42, String.class);
boolean canConvert = PropertyConverter.canConvert(String.class, Integer.class);
Security | 安全性:
- Thread-safe: Yes (uses ConcurrentHashMap for converter registry) - 线程安全: 是(使用ConcurrentHashMap存储转换器)
- Null-safe: Yes (null input returns type default) - 空值安全: 是(null输入返回类型默认值)
Performance | 性能特性:
- Time complexity: O(1) for convert (hash map lookup) and canConvert - 时间复杂度: convert(哈希映射查找)和 canConvert 均为 O(1)
- Space complexity: O(1) per conversion - 空间复杂度: 每次转换 O(1)
- Since:
- JDK 25, opencode-base-reflect V1.0.0
- Author:
- Leon Soo www.LeonSoo.com
- See Also:
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Method Summary
Modifier and TypeMethodDescriptionstatic booleancanConvert(Class<?> sourceType, Class<?> targetType) Checks if conversion is possible 检查是否可以转换static <T> TConverts a value to the target type 将值转换为目标类型static <T> TconvertOrDefault(Object value, Class<T> targetType, T defaultValue) Converts a value with a default value if conversion fails 转换值,如果转换失败返回默认值static <T> TconvertSafe(Object value, Class<T> targetType) Converts a value, returning null if conversion fails 转换值,如果转换失败返回nullstatic <S,T> void Registers a custom converter 注册自定义转换器
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Method Details
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convert
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convertSafe
Converts a value, returning null if conversion fails 转换值,如果转换失败返回null- Type Parameters:
T- the target type | 目标类型- Parameters:
value- the value to convert | 要转换的值targetType- the target type | 目标类型- Returns:
- the converted value or null | 转换后的值或null
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convertOrDefault
Converts a value with a default value if conversion fails 转换值,如果转换失败返回默认值- Type Parameters:
T- the target type | 目标类型- Parameters:
value- the value to convert | 要转换的值targetType- the target type | 目标类型defaultValue- the default value | 默认值- Returns:
- the converted value or default | 转换后的值或默认值
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canConvert
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registerConverter
public static <S,T> void registerConverter(Class<S> sourceType, Class<T> targetType, Function<Object, Object> converter) Registers a custom converter 注册自定义转换器- Type Parameters:
S- the source type | 源类型T- the target type | 目标类型- Parameters:
sourceType- the source type | 源类型targetType- the target type | 目标类型converter- the converter function | 转换器函数
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