com.evrythng.commons

Class Ref<T>

java.lang.Object

com.evrythng.commons.Ref<T>

public final class Ref<T>
extends Object

Class that holds a value. Useful for passing arguments by reference.

Author:

Michel Yerly (my)

Constructor Summary

Constructors

Constructor and Description
Ref() Creates an instance that holds the null value.
Ref(T obj) Creates an instance that holds the specified value.

Method Summary

Modifier and Type	Method and Description
T	get() Gets the value held.
static <T> void	set(Ref<T> ref, T obj) Null-safe setter.
void	set(T obj) Sets the value to hold.

Methods inherited from class java.lang.Object

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

Constructor Detail

Ref

public Ref()

Creates an instance that holds the null value.

Ref

public Ref(T obj)

Creates an instance that holds the specified value.

Method Detail

get

public final T get()

Gets the value held.

set

public final void set(T obj)

Sets the value to hold.

set

public static <T> void set(Ref<T> ref,
                           T obj)

Null-safe setter.