org.junit.jupiter.params.converter

Class AnnotationBasedArgumentConverter<A extends java.lang.annotation.Annotation>

java.lang.Object

org.junit.jupiter.params.converter.AnnotationBasedArgumentConverter<A>

All Implemented Interfaces:

java.util.function.Consumer<A>, ArgumentConverter, AnnotationConsumer<A>

Direct Known Subclasses:

JavaTimeArgumentConverter

@API(status=EXPERIMENTAL,
     since="5.10")
public abstract class AnnotationBasedArgumentConverter<A extends java.lang.annotation.Annotation>
extends java.lang.Object
implements ArgumentConverter, AnnotationConsumer<A>

AnnotationBasedArgumentConverter is an abstract base class for ArgumentConverter implementations that also need to consume an annotation in order to perform the conversion.

Since:

5.10

See Also:

ArgumentConverter, AnnotationConsumer, SimpleArgumentConverter

Field Summary

Fields

Modifier and Type	Field and Description
private A	annotation

Constructor Summary

Constructors

Constructor and Description
AnnotationBasedArgumentConverter()

Method Summary

Modifier and Type	Method and Description
void	accept(A annotation)
protected abstract java.lang.Object	convert(java.lang.Object source, java.lang.Class<?> targetType, A annotation) Convert the supplied source object into the supplied targetType, based on metadata in the provided annotation.
java.lang.Object	convert(java.lang.Object source, ParameterContext context) Convert the supplied source object according to the supplied context.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.util.function.Consumer

andThen

Field Detail

annotation

private A extends java.lang.annotation.Annotation annotation

Constructor Detail

AnnotationBasedArgumentConverter

public AnnotationBasedArgumentConverter()

Method Detail

accept

public final void accept(A annotation)

Specified by:

accept in interface java.util.function.Consumer<A extends java.lang.annotation.Annotation>

convert

public final java.lang.Object convert(java.lang.Object source,
                                      ParameterContext context)
                               throws ArgumentConversionException

Description copied from interface: ArgumentConverter

Convert the supplied source object according to the supplied context.

Specified by:

convert in interface ArgumentConverter

Parameters:

source - the source object to convert; may be null

context - the parameter context where the converted object will be used; never null

Returns:

the converted object; may be null but only if the target type is a reference type

Throws:

ArgumentConversionException - if an error occurs during the conversion

convert

protected abstract java.lang.Object convert(java.lang.Object source,
                                            java.lang.Class<?> targetType,
                                            A annotation)
                                     throws ArgumentConversionException

Convert the supplied source object into the supplied targetType, based on metadata in the provided annotation.

Parameters:

source - the source object to convert; may be null

targetType - the target type the source object should be converted into; never null

annotation - the annotation to process; never null

Returns:

the converted object; may be null but only if the target type is a reference type

Throws:

ArgumentConversionException - in case an error occurs during the conversion