sirius.kernel.di.transformers

Interface Transformable

All Known Implementing Classes:

Composable

public interface Transformable

A class implementing this interface supports the Adapter Pattern.

Using the as(Class) method, the object can be casted or transformed to fulfill the requested type.

Method Summary

Modifier and Type	Method and Description
<A> A	as(Class<A> adapterType) Adapts this into the given adapterType.
boolean	is(Class<?> type) Determines if this can be transformed to the given type.
<A> Optional<A>	tryAs(Class<A> adapterType) Tries to transform this into the given adapterType.

Method Detail

is

boolean is(@Nonnull
           Class<?> type)

Determines if this can be transformed to the given type.

Parameters:

type - the target type to check for

Returns:

true if this implements the type already or it can be transformed into the given type

tryAs

<A> Optional<A> tryAs(@Nonnull
                      Class<A> adapterType)

Tries to transform this into the given adapterType.

Type Parameters:

A - the type of the adapter type

Parameters:

adapterType - the target type to adapt to

Returns:

an optional which either contains the adapted value matching the requested adapterType or an empty optional if no transformation was possible

as

<A> A as(@Nonnull
         Class<A> adapterType)

Adapts this into the given adapterType.

Type Parameters:

A - the type of the adapter type

Parameters:

adapterType - the target type to adapt to

Returns:

this adapted to match the requested adapterType

Throws:

IllegalArgumentException - if no transformation was possible