com.diffplug.common.base

Class Box<T>

java.lang.Object

com.diffplug.common.base.Box<T>

All Implemented Interfaces:

GetterSetter<T>, java.util.function.Supplier<T>

Direct Known Subclasses:

Box.NonNull

public class Box<T>
extends java.lang.Object
implements GetterSetter<T>

Simple class for creating boxed variables. Useful when you need to make a mutable variable available to a closure.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Box.NonNull<T> A Box which guarantees to never be null (by disallowing null values in its setter).

Nested classes/interfaces inherited from interface com.diffplug.common.base.GetterSetter

GetterSetter.Double, GetterSetter.Int

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	Box(T init)

Method Summary

Modifier and Type	Method and Description
static <T> Box<T>	empty() Creates an empty Holder object.
T	get()
static <T> Box<T>	of(T init) Creates a Holder of the given object.
void	set(T obj) Sets the value which will later be returned by get().
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.diffplug.common.base.GetterSetter

from, from

Constructor Detail

Box

protected Box(T init)

Method Detail

of

public static <T> Box<T> of(T init)

Creates a Holder of the given object.

empty

public static <T> Box<T> empty()

Creates an empty Holder object.

get

public T get()

Specified by:

get in interface java.util.function.Supplier<T>

set

public void set(T obj)

Description copied from interface: GetterSetter

Sets the value which will later be returned by get().

Specified by:

set in interface GetterSetter<T>

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object