hu.akarnokd.reactive4java.base

Class Ref<T>

java.lang.Object

hu.akarnokd.reactive4java.base.Ref<T>

Type Parameters:

T - the type of the contained object

public final class Ref<T>
extends java.lang.Object

A simple reference object holding something that can be changed. Not thread-safe and not meant to be.

Constructor Summary

Constructors

Constructor and Description
Ref() Initializes a null element.
Ref(T value) Initializes the ref with the given value.

Method Summary

Modifier and Type	Method and Description
T	get()
static <U> Ref<U>	of() Construct a new reference in empty mode.
static <U> Ref<U>	of(U value) Construct a new reference of an initial value (type inference helper).
T	replace(T newValue) Replace the current contents with the new value and return the old value.
void	set(T newValue) Set the new content.

Methods inherited from class java.lang.Object

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

Constructor Detail

Ref

public Ref()

Initializes a null element.

Ref

public Ref(T value)

Initializes the ref with the given value.

Parameters:

value - the value

Method Detail

get

public T get()

Returns:

retrieve the content.

set

public void set(T newValue)

Set the new content.

Parameters:

newValue - the new value to set

replace

public T replace(T newValue)

Replace the current contents with the new value and return the old value.

Parameters:

newValue - the new value

Returns:

the old value

of

public static <U> Ref<U> of(U value)

Construct a new reference of an initial value (type inference helper).

Type Parameters:

U - the type of the value

Parameters:

value - the initial value

Returns:

the reference holding the value

of

public static <U> Ref<U> of()

Construct a new reference in empty mode.

Type Parameters:

U - the type of the contents

Returns:

the reference