org.junit.jupiter.params.converter

Class TypedArgumentConverter<S,T>

java.lang.Object

org.junit.jupiter.params.converter.TypedArgumentConverter<S,T>

Type Parameters:

S - the type of the source argument to convert

T - the type of the target object to create from the source

All Implemented Interfaces:

ArgumentConverter

@API(status=STABLE,
     since="5.10")
public abstract class TypedArgumentConverter<S,T>
extends java.lang.Object
implements ArgumentConverter

TypedArgumentConverter is an abstract base class for ArgumentConverter implementations that always convert objects of a given source type into a given target type.

Since:

5.7

See Also:

ArgumentConverter, SimpleArgumentConverter

Field Summary

Fields

Modifier and Type	Field and Description
private java.lang.Class<S>	sourceType
private java.lang.Class<T>	targetType

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	TypedArgumentConverter(java.lang.Class<S> sourceType, java.lang.Class<T> targetType) Create a new TypedArgumentConverter.

Method Summary

Modifier and Type	Method and Description
java.lang.Object	convert(java.lang.Object source, ParameterContext context) Convert the supplied source object according to the supplied context.
protected abstract T	convert(S source) Convert the supplied source object of type S into an object of type T.

Methods inherited from class java.lang.Object

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

Field Detail

sourceType

private final java.lang.Class<S> sourceType

targetType

private final java.lang.Class<T> targetType

Constructor Detail

TypedArgumentConverter

protected TypedArgumentConverter(java.lang.Class<S> sourceType,
                                 java.lang.Class<T> targetType)

Create a new TypedArgumentConverter.

Parameters:

sourceType - the type of the argument to convert; never null

targetType - the type of the target object to create from the source; never null

Method Detail

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 T convert(S source)
                      throws ArgumentConversionException

Convert the supplied source object of type S into an object of type T.

Parameters:

source - the source object to convert; may be 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