cn.crane4j.core.support.converter

接口 ConverterManager

所有已知实现类:

HutoolConverterManager, SimpleConverterManager

public interface ConverterManager

A manager for converter what convert target type to the result type.

从以下版本开始:

1.3.0

作者:

huangchengxing

另请参阅:

ParameterConvertibleMethodInvoker, HutoolConverterManager, SimpleConverterManager

方法概要

限定符和类型	方法和说明
default <T,R> R	convert(T target, Class<R> resultType) Convert a source to the target type through converter if converter is null, return null.
default <T,R> R	convert(T target, Class<R> resultType, R defaultResult) Convert target to the result type through converter if converter is null, return default result value.
<T,R> @Nullable BiFunction<T,R,R>	getConverter(Class<T> targetType, Class<R> resultType) Get converter from target type to result type.

方法详细资料

getConverter

<T,R> @Nullable BiFunction<T,R,R> getConverter(Class<T> targetType,
                                               Class<R> resultType)

Get converter from target type to result type.
eg:

   ConverterManager converterManager = new SimpleConverterManager();
   // get converter from String to Integer
   BiFunction<String, Integer, Integer> converter = converterManager.getConverter(String.class, Integer.class);
   // convert target to Integer, if target is null or target can't convert to Integer, return 0
   Object target = "1";
   Integer result = converter.apply(target, 0);
 

类型参数:

T - target type

R - result type

参数:

targetType - target type

resultType - result type

返回:

converter

convert

default <T,R> R convert(T target,
                        Class<R> resultType,
                        R defaultResult)

Convert target to the result type through converter if converter is null, return default result value.

类型参数:

T - target type

R - result type

参数:

target - target object

resultType - result type

defaultResult - default result value

返回:

converted object, if converter is null, return default value

另请参阅:

getConverter(java.lang.Class<T>, java.lang.Class<R>)

convert

default <T,R> R convert(T target,
                        Class<R> resultType)

Convert a source to the target type through converter if converter is null, return null.

类型参数:

T - target type

R - result type

参数:

target - target object

resultType - result type

返回:

converted object, if converter is null, return null

另请参阅:

getConverter(java.lang.Class<T>, java.lang.Class<R>)