Class Interfaces

java.lang.Object

org.soliscode.test.interfaces.Interfaces

public final class Interfaces
extends Object

Utility class that helps create interface-narrowing views on objects.

Since:

1.0

Author:

evanbergstrom

Method Summary

Modifier and Type	Method	Description
static <E> CollectionOnly<E>	narrowToCollection(Collection<E> i)	Wraps the object so that only the methods in the Collection interface are available.
static <E> IterableOnly<E>	narrowToIterable(Iterable<E> i)	Wraps the object so that only the methods in the Iterable interface are available.
static NumberOnly	narrowToNumber(Number n)	Wraps the object so that only the methods in the Number interface are available.
static ObjectOnly	narrowToObject(@NotNull Object obj)	Wraps the object so that only the methods in the Object interface are available.

Methods inherited from class java.lang.Object

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

Method Details

narrowToObject

public static ObjectOnly narrowToObject(@NotNull
 @NotNull Object obj)

Wraps the object so that only the methods in the Object interface are available.

Parameters:

obj - the object to wrap.

Returns:

the wrapped object.

narrowToNumber

public static NumberOnly narrowToNumber(Number n)

Wraps the object so that only the methods in the Number interface are available.

Parameters:

n - the number to wrap.

Returns:

the wrapped number.

narrowToIterable

public static <E> IterableOnly<E> narrowToIterable(Iterable<E> i)

Wraps the object so that only the methods in the Iterable interface are available.

Type Parameters:

E - the element type for the iterable.

Parameters:

i - the iterable to wrap

Returns:

the wrapped iterable.

narrowToCollection

public static <E> CollectionOnly<E> narrowToCollection(Collection<E> i)

Wraps the object so that only the methods in the Collection interface are available.

Type Parameters:

E - the element type for the iterable.

Parameters:

i - the iterable to wrap

Returns:

the wrapped iterable.