Package io.microsphere.convert

Interface Converter<S,T>

Type Parameters:

S - The source type

T - The target type

All Superinterfaces:

java.lang.Comparable<Prioritized>, Prioritized

All Known Subinterfaces:

StringConverter<T>

All Known Implementing Classes:

MapToPropertiesConverter, PropertiesToStringConverter, StringToBooleanConverter, StringToCharacterConverter, StringToCharArrayConverter, StringToClassConverter, StringToDoubleConverter, StringToDurationConverter, StringToFloatConverter, StringToInputStreamConverter, StringToIntegerConverter, StringToLongConverter, StringToOptionalConverter, StringToShortConverter, StringToStringConverter

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface Converter<S,T>
extends Prioritized

A class to convert the source-typed value to the target-typed value

Since:

1.0.0

Field Summary

Fields inherited from interface io.microsphere.lang.Prioritized

COMPARATOR, MAX_PRIORITY, MIN_PRIORITY, NORMAL_PRIORITY

Method Summary

Modifier and Type	Method	Description
default boolean	accept(java.lang.Class<?> sourceType, java.lang.Class<?> targetType)	Accept the source type and target type or not
T	convert(S source)	Convert the source-typed value to the target-typed value
static <T> T	convertIfPossible(java.lang.Object source, java.lang.Class<T> targetType)	Convert the value of source to target-type value if possible
static <S,T> Converter<S,T>	getConverter(java.lang.Class<S> sourceType, java.lang.Class<T> targetType)	Get the Converter instance from ServiceLoader with the specified source and target type
default java.lang.Class<S>	getSourceType()	Get the source type
default java.lang.Class<T>	getTargetType()	Get the target type

Methods inherited from interface io.microsphere.lang.Prioritized

compareTo, getPriority

Method Detail

accept

default boolean accept(java.lang.Class<?> sourceType,
                       java.lang.Class<?> targetType)

Accept the source type and target type or not

Parameters:

sourceType - the source type

targetType - the target type

Returns:

if accepted, return true, or false

convert

T convert(S source)

Convert the source-typed value to the target-typed value

Parameters:

source - the source-typed value

Returns:

the target-typed value

getSourceType

default java.lang.Class<S> getSourceType()

Get the source type

Returns:

non-null

getTargetType

default java.lang.Class<T> getTargetType()

Get the target type

Returns:

non-null

getConverter

static <S,T> Converter<S,T> getConverter(java.lang.Class<S> sourceType,
                                                     java.lang.Class<T> targetType)

Get the Converter instance from ServiceLoader with the specified source and target type

Parameters:

sourceType - the source type

targetType - the target type

Returns:

convertIfPossible

static <T> T convertIfPossible(java.lang.Object source,
                               java.lang.Class<T> targetType)

Convert the value of source to target-type value if possible

Type Parameters:

T - the target type

Parameters:

source - the value of source

targetType - the target type

Returns:

null if can't be converted