net.emaze.dysfunctional

Class Casts

java.lang.Object

net.emaze.dysfunctional.Casts

public abstract class Casts
extends Object

widen, widener, narrow, narrower, vary, variator.

Author:

rferranti

Constructor Summary

Constructors

Constructor and Description
Casts()

Method Summary

Modifier and Type	Method and Description
static <R,T extends R> R	narrow(T value) Performs an upcast on a value.
static <R,T extends R> Delegate<R,T>	narrower() Creates a delegate performing a narrowing cast.
static <R,T> Delegate<R,T>	variator() Creates a delegate performing a reinterpret cast on a value.
static <R,T> R	vary(T value) Performs a reinterpret cast on a value.
static <R,T> R	widen(T value) Performs a downcast on a value.
static <T,R extends T> Delegate<R,T>	widener() Creates a delegate performing a widening cast.

Methods inherited from class java.lang.Object

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

Constructor Detail

Casts

public Casts()

Method Detail

widen

public static <R,T> R widen(T value)

Performs a downcast on a value.

Type Parameters:

R - the resulting type

T - the source type

Parameters:

value - the value to be cast

Returns:

the resulting value

widener

public static <T,R extends T> Delegate<R,T> widener()

Creates a delegate performing a widening cast.

Type Parameters:

T - the resulting type

R - the source type

Returns:

the delegate

narrow

public static <R,T extends R> R narrow(T value)

Performs an upcast on a value.

Type Parameters:

R - the resulting type

T - the source type

Parameters:

value - the value to be cast

Returns:

the resulting value

narrower

public static <R,T extends R> Delegate<R,T> narrower()

Creates a delegate performing a narrowing cast.

Type Parameters:

R - the resulting type

T - the source type

Returns:

the delegate

vary

public static <R,T> R vary(T value)

Performs a reinterpret cast on a value.

Type Parameters:

R - the resulting type

T - the source type

Parameters:

value - the value to be cast

Returns:

the resulting value

variator

public static <R,T> Delegate<R,T> variator()

Creates a delegate performing a reinterpret cast on a value.

Type Parameters:

R - the resulting type

T - the source type

Returns:

the delegate